InetrfaceProducts NXP
mini board PCU9669 (and PCA9665) sample code
Dependencies: mbed PCU9669 utility PCA9665 I2C_slaves parallel_bus
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InetrfaceProducts NXP
Sample code for PCU9669 (PCU9661, PCA9663, PCA9661 and PCA9665) evaluation board.
PCU9669 evaluation board: Mini board PCU9669
User manual is available -> http://www.nxp.com/documents/user_manual/UM10580.pdf
Revision 6:1fc6a640d320, committed 2012-03-26
- Comitter:
- nxp_ip
- Date:
- Mon Mar 26 15:23:45 2012 +0000
- Parent:
- 5:57c345099873
- Child:
- 7:87fd13f1faa6
- Commit message:
- version 1.0 release
Changed in this revision
--- a/config.h Mon Mar 26 06:17:23 2012 +0000 +++ b/config.h Mon Mar 26 15:23:45 2012 +0000 @@ -1,8 +1,8 @@ /** A sample code for "mini board PCU9669/PCA9665" * - * @author Tedd OKANO, NXP Semiconductors - * @version 0.9 - * @date 14-Feb-2011 + * @author Akifumi (Tedd) OKANO, NXP Semiconductors + * @version 1.0 + * @date 26-Mar-2011 * * Released under the MIT License: http://mbed.org/license/mit * @@ -24,11 +24,11 @@ * PCU9669 and PCA9665 codes are packed in a project 14-Feb-2012. * * Before builidng the code, please edit the file mini_board_PCU9669/config.h - * Uncomment the target name what you want to target. + * Un-comment the target name what you want to target. */ -//#define CODE_FOR_PCU9669 +#define CODE_FOR_PCU9669 //#define CODE_FOR_PCA9663 -#define CODE_FOR_PCA9665 +//#define CODE_FOR_PCA9665
--- a/main_PCA9665.c Mon Mar 26 06:17:23 2012 +0000 +++ b/main_PCA9665.c Mon Mar 26 15:23:45 2012 +0000 @@ -1,8 +1,8 @@ /** A sample code for "mini board PCU9669/PCA9665" * - * @author Tedd OKANO, NXP Semiconductors - * @version 0.9 - * @date 14-Feb-2011 + * @author Akifumi (Tedd) OKANO, NXP Semiconductors + * @version 1.0 + * @date 26-Mar-2011 * * Released under the MIT License: http://mbed.org/license/mit * @@ -24,7 +24,7 @@ * PCU9669 and PCA9665 codes are packed in a project 14-Feb-2012. * * Before builidng the code, please edit the file mini_board_PCU9669/config.h - * Uncomment the target name what you want to target. + * Un-comment the target name what you want to target. */
--- a/main_PCU9669.c Mon Mar 26 06:17:23 2012 +0000 +++ b/main_PCU9669.c Mon Mar 26 15:23:45 2012 +0000 @@ -1,8 +1,8 @@ /** A sample code for "mini board PCU9669/PCA9665" * - * @author Tedd OKANO, NXP Semiconductors - * @version 0.9 - * @date 14-Feb-2011 + * @author Akifumi (Tedd) OKANO, NXP Semiconductors + * @version 1.0 + * @date 26-Mar-2011 * * Released under the MIT License: http://mbed.org/license/mit * @@ -24,7 +24,7 @@ * PCU9669 and PCA9665 codes are packed in a project 14-Feb-2012. * * Before builidng the code, please edit the file mini_board_PCU9669/config.h - * Uncomment the target name what you want to target. + * Un-comment the target name what you want to target. */ /** @note Application layer module of PCU9669
--- a/mini_board_libs/I2C_slaves.lib Mon Mar 26 06:17:23 2012 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -http://mbed.org/users/nxp_ip/libraries/I2C_slaves/m6vqar \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mini_board_libs/PCA9665.lib Mon Mar 26 15:23:45 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/nxp_ip/libraries/PCA9665/m7gm2b \ No newline at end of file
--- a/mini_board_libs/PCA9665/.lib Mon Mar 26 06:17:23 2012 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -http://mbed.org/users/nxp_ip/libraries/PCA9665/m6vbya \ No newline at end of file
--- a/mini_board_libs/PCA9665/PCA9665_access.c Mon Mar 26 06:17:23 2012 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,414 +0,0 @@
-/** A sample code for "mini board PCU9669/PCA9665"
- *
- * @author Tedd OKANO, NXP Semiconductors
- * @version 0.9
- * @date 14-Feb-2011
- *
- * Released under the MIT License: http://mbed.org/license/mit
- *
- * An operation sample of PCU9669/PCA9665 I2C bus controller.
- * The mbed accesses the bus controller's parallel port (8/2 bit address and 8 bit data) by bit-banging.
- * The bit-banging is poerformed by PortInOut function of mbed library.
- *
- * To make the code porting easier, all codes are partitioned into layers to abstract other parts.
- * The mbed specific parts are concentrated in lowest layer: "hardware_abs.*".
- * This module may need to be modified for the porting.
- *
- * All other upper layers are writen in standard-C.
- *
- * base code is written from 05-Sep-2011 to 09-Sep-2011.
- * And demo code has been build on 11-Sep-2011.
- * Debug and code adjustment has been done on 08-Sep-2011.
- * Small sanitization for main.cpp. All mbed related codes are moved in to "hardware_abs.*". 13-Oct-2011
- * hardware_abs are moved into parallel_bus library folder, 3 LED driver operation sample 13-Feb.-2012
- * PCU9669 and PCA9665 codes are packed in a project 14-Feb-2012.
- *
- * Before builidng the code, please edit the file mini_board_PCU9669/config.h
- * Uncomment the target name what you want to target.
- */
-
-#include "PCA9665_access.h"
-#include "hardware_abs.h"
-
-#define BUS_CONTINUE 0
-#define BUS_STOP 1
-#define BUS_RELEASE 2
-
-typedef enum {
- I2CSTA = 0x0,
- INDPTR = 0x0,
- I2CDAT,
- INDIRECT,
- I2CCON
-}
-pca9665_direct_registers;
-
-typedef enum {
- I2CCOUNT,
- I2CADR,
- I2CSCLL,
- I2CSCLH,
- I2CTO,
- I2CPRESET,
- I2CMODE
-}
-pca9665_indirect_registers;
-
-typedef enum {
- ILLEGAL_START_STOP = 0x00,
- MASTER_START_TXed = 0x08,
- MASTER_RESTART_TXed = 0x10,
- MASTER_SLA_W_ACK = 0x18,
- MASTER_SLA_W_NAK = 0x20,
- MASTER_DATA_W_ACK = 0x28,
- MASTER_DATA_W_NAK = 0x30,
- MASTER_ARB_LOST = 0x38,
- MASTER_SLA_R_ACK = 0x40,
- MASTER_SLA_R_NAK = 0x48,
- MASTER_DATA_R_ACK = 0x50,
- MASTER_DATA_R_NAK = 0x58,
- SLAVE_ADDRESSED_W = 0x60,
- SLAVE_AL_ADDRESSED_W = 0x68,
- SDA_STUCK = 0x70,
- SCL_STUCK = 0x78,
- SLAVE_DATA_RX_ACK = 0x80,
- SLAVE_DATA_RX_NAK = 0x88,
- SLAVE_STOP_OR_RESTART = 0xA0,
- SLAVE_ADDRESSED_R = 0xA8,
- SLAVE_AL_ADDRESSED_R = 0xB0,
- SLAVE_DATA_TX_ACK = 0xB8,
- SLAVE_DATA_TX_NAK = 0xC0,
- SLAVE_LAST_DATA_TX_ACK = 0xC8,
- SLAVE_GENERALCALL = 0xD0,
- SLAVE_GENERALCALL_AL = 0xD8,
- SLAVE_GENERALCALL_DATA_RX_ACK = 0xE0,
- SLAVE_GENERALCALL_DATA_RX_NAK = 0xE8,
- IDLE = 0xF8,
- ILLEGAL_I2CCOUNT = 0xFC
-}
-pca9665_status;
-
-typedef struct _speed_mode_st {
- char i2cmode;
- char i2cscll;
- char i2csclh;
-}
-speed_mode_st;
-
-speed_mode_st speed_mode[ 3 ] = {
- { 0x00, 0x9D, 0x86 },
- { 0x01, 0x2C, 0x14 },
- { 0x02, 0x011, 0x09 }
-};
-
-int buffer_mode_enable = DISABLE;
-char int_happened = 0;
-char op_mode_flag = OP_MODE_MASTER_ONLY;
-
-void interrupt_handler_PCA9665( void ) {
- int_happened = 1;
-}
-
-void PCA9665_init( void ) {
- write_data( I2CCON, 0x40 );
- hw_wait_us( 1000 );
-
- install_ISR( &interrupt_handler_PCA9665 ); // interrupt service routine install
-
- // initialize PCA9955 registers
-}
-
-void set_speed_mode( int mode ) {
- indirect_write( I2CMODE, speed_mode[ mode ].i2cmode );
- indirect_write( I2CSCLL, speed_mode[ mode ].i2cscll );
- indirect_write( I2CSCLH, speed_mode[ mode ].i2csclh );
-}
-
-void set_buffer_mode( int mode ) {
- buffer_mode_enable = mode;
-}
-
-int i2c_write( char addr, char *dp, char length, char restart_flag ) {
- return (
- buffer_mode_enable ?
- i2c_write_buffer_mode( addr, dp, length, restart_flag )
- :
- i2c_write_byte_mode( addr, dp, length, restart_flag )
- );
-}
-
-int i2c_read( char addr, char *dp, char length, char restart_flag ) {
- return (
- buffer_mode_enable ?
- i2c_read_buffer_mode( addr, dp, length, restart_flag )
- :
- i2c_read_byte_mode( addr, dp, length, restart_flag )
- );
-}
-
-
-int i2c_write_buffer_mode( char addr, char *dp, char length, char restart_flag ) {
- int done = BUS_CONTINUE;
- char state;
- char return_value = 0xFF;
-#ifdef PCA9665_BURST_DATA_ACCESS
-#else
- int i;
-#endif
-
- if ( 67 < length )
- return ( 0xFE );
-
- write_data( I2CCON, 0x61 );
-
- while ( !done ) {
- if ( int_happened ) {
- int_happened = 0;
-
- state = read_data( I2CSTA );
-
- switch ( state ) {
- case MASTER_START_TXed :
- case MASTER_RESTART_TXed :
- indirect_write( I2CCOUNT, length + 1 );
- write_data( I2CDAT, addr & 0xFE );
-
-#ifdef PCA9665_BURST_DATA_ACCESS
- write_data_burst( I2CDAT, dp, length );
-#else
- for ( i = 0; i < length; i++ )
- write_data( I2CDAT, *dp++ );
-#endif
-
- write_data( I2CCON, 0x41 );
- break;
- case MASTER_SLA_W_ACK : // SLA+W TXed
- case MASTER_DATA_W_ACK : // DATA TXed
- return_value = 0x00;
- done = BUS_STOP;
- break;
- case MASTER_SLA_W_NAK :
- case MASTER_DATA_W_NAK :
- return_value = 0x01;
- done = BUS_STOP;
- break;
- case MASTER_ARB_LOST :
- case SLAVE_AL_ADDRESSED_R :
- case SLAVE_AL_ADDRESSED_W :
- case SLAVE_GENERALCALL_AL :
- /* bus should be released for other master */
- default :
- /* unexpected bus error */
- done = BUS_RELEASE;
- break;
- }
- }
- }
-
- if ( OP_MODE_MASTER_ONLY == op_mode_flag )
- done = BUS_STOP;
-
- if ( (BUS_STOP == done) && !restart_flag )
- write_data( I2CCON, 0x50 );
-
- return ( return_value );
-}
-
-int i2c_read_buffer_mode( char addr, char *dp, char length, char restart_flag ) {
- int done = BUS_CONTINUE;
- char state;
- char return_value = 0xFF;
-
-#ifdef PCA9665_BURST_DATA_ACCESS
-#else
- int i;
-#endif
-
- if ( 68 < length )
- return ( 0xFE );
-
- if ( !length ) // zero byte read may cause invalid STOP to START signal output
- return ( 0 );
-
- write_data( I2CCON, 0x61 );
-
- while ( !done ) {
- if ( int_happened ) {
- int_happened = 0;
-
- state = read_data( I2CSTA );
-
- switch ( state ) {
- case MASTER_START_TXed :
- case MASTER_RESTART_TXed :
- write_data( I2CDAT, addr | 0x01 );
- indirect_write( I2CCOUNT, length | 0x80 );
- write_data( I2CCON, 0x41 );
- break;
- case MASTER_SLA_R_ACK : // SLA+R TXed
- case MASTER_DATA_R_ACK : // DATA RXed
- return_value = 0x00;
- done = BUS_STOP;
- break;
- case MASTER_SLA_R_NAK : // SLA+R TXed
- return_value = 0x01;
- done = BUS_STOP;
- break;
- case MASTER_DATA_R_NAK :
- return_value = length - (indirect_read( I2CCOUNT ) & 0x7F);
- done = BUS_STOP;
-
- break;
- case MASTER_ARB_LOST :
- case SLAVE_AL_ADDRESSED_R :
- case SLAVE_AL_ADDRESSED_W :
- case SLAVE_GENERALCALL_AL :
- /* bus should be released for other master */
- default :
- /* unexpected bus error */
- done = BUS_RELEASE;
- break;
- }
- }
- }
-
-#ifdef PCA9665_BURST_DATA_ACCESS
- read_data_burst( I2CDAT, dp, length );
-#else
- for ( i = 0; i < length; i++ )
- *dp++ = read_data( I2CDAT );
-#endif
-
- if ( OP_MODE_MASTER_ONLY == op_mode_flag )
- done = BUS_STOP;
-
- if ( (BUS_STOP == done) && !restart_flag )
- write_data( I2CCON, 0x50 );
-
- return ( return_value );
-}
-
-int i2c_write_byte_mode( char addr, char *dp, char length, char restart_flag ) {
- int done = BUS_CONTINUE;
- char state;
-
- write_data( I2CCON, 0x60 );
-
- while ( !done ) {
- if ( int_happened ) {
- int_happened = 0;
-
- state = read_data( I2CSTA );
-
- switch ( state ) {
- case MASTER_START_TXed :
- case MASTER_RESTART_TXed :
- write_data( I2CDAT, addr & 0xFE );
- write_data( I2CCON, 0x40 );
- break;
- case MASTER_DATA_W_ACK : // DATA TXed
- length--;
- /* FALLTHROUGH */
- case MASTER_SLA_W_ACK : // SLA+W TXed
- if ( !length ) {
- done = BUS_STOP;
- break;
- }
- write_data( I2CDAT, *dp++ );
- write_data( I2CCON, 0x40 );
- break;
- case MASTER_SLA_W_NAK :
- case MASTER_DATA_W_NAK :
- done = BUS_STOP;
- break;
- case MASTER_ARB_LOST :
- case SLAVE_AL_ADDRESSED_R :
- case SLAVE_AL_ADDRESSED_W :
- case SLAVE_GENERALCALL_AL :
- /* bus should be released for other master */
- default :
- /* unexpected bus error */
- done = BUS_RELEASE;
- break;
- }
- }
- }
-
- if ( OP_MODE_MASTER_ONLY == op_mode_flag )
- done = BUS_STOP;
-
- if ( (BUS_STOP == done) && !restart_flag )
- write_data( I2CCON, 0x50 );
-
- return ( length );
-}
-
-int i2c_read_byte_mode( char addr, char *dp, char length, char restart_flag ) {
- int done = BUS_CONTINUE;
- char state;
-
- if ( !length ) // zero byte read may cause invalid STOP to START signal output
- return ( 0 );
-
- write_data( I2CCON, 0x60 );
-
- while ( !done ) {
- if ( int_happened ) {
- int_happened = 0;
-
- state = read_data( I2CSTA );
-
- switch ( state ) {
- case MASTER_START_TXed :
- case MASTER_RESTART_TXed :
- write_data( I2CDAT, addr | 0x01 );
- write_data( I2CCON, 0x40 );
- break;
- case MASTER_DATA_R_NAK :
- done = BUS_STOP;
- /* FALLTHROUGH */
- case MASTER_DATA_R_ACK : // DATA RXed
- *dp++ = read_data( I2CDAT );
- length--;
- /* FALLTHROUGH */
- case MASTER_SLA_R_ACK : // SLA+R TXed
- if ( !length )
- done = BUS_STOP;
-
- if ( !done )
- write_data( I2CCON, (length == 1) ? 0x40 : 0xC0 );
- break;
- case MASTER_SLA_R_NAK :
- done = BUS_STOP;
- break;
- case MASTER_ARB_LOST :
- case SLAVE_AL_ADDRESSED_R :
- case SLAVE_AL_ADDRESSED_W :
- case SLAVE_GENERALCALL_AL :
- /* bus should be released for other master */
- default :
- /* unexpected bus error */
- done = BUS_RELEASE;
- break;
- }
- }
- }
-
- if ( OP_MODE_MASTER_ONLY == op_mode_flag )
- done = BUS_STOP;
-
- if ( (BUS_STOP == done) && !restart_flag )
- write_data( I2CCON, 0x50 );
-
- return ( length );
-}
-
-void indirect_write( char idaddr, char data ) {
- write_data( INDPTR, idaddr );
- write_data( INDIRECT, data );
-}
-
-char indirect_read( char idaddr ) {
- write_data( INDPTR, idaddr );
- return ( read_data( INDIRECT ) );
-}
--- a/mini_board_libs/PCA9665/PCA9665_access.h Mon Mar 26 06:17:23 2012 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,77 +0,0 @@
-/** A sample code for "mini board PCU9669/PCA9665"
- *
- * @author Tedd OKANO, NXP Semiconductors
- * @version 0.9
- * @date 14-Feb-2011
- *
- * Released under the MIT License: http://mbed.org/license/mit
- *
- * An operation sample of PCU9669/PCA9665 I2C bus controller.
- * The mbed accesses the bus controller's parallel port (8/2 bit address and 8 bit data) by bit-banging.
- * The bit-banging is poerformed by PortInOut function of mbed library.
- *
- * To make the code porting easier, all codes are partitioned into layers to abstract other parts.
- * The mbed specific parts are concentrated in lowest layer: "hardware_abs.*".
- * This module may need to be modified for the porting.
- *
- * All other upper layers are writen in standard-C.
- *
- * base code is written from 05-Sep-2011 to 09-Sep-2011.
- * And demo code has been build on 11-Sep-2011.
- * Debug and code adjustment has been done on 08-Sep-2011.
- * Small sanitization for main.cpp. All mbed related codes are moved in to "hardware_abs.*". 13-Oct-2011
- * hardware_abs are moved into parallel_bus library folder, 3 LED driver operation sample 13-Feb.-2012
- * PCU9669 and PCA9665 codes are packed in a project 14-Feb-2012.
- *
- * Before builidng the code, please edit the file mini_board_PCU9669/config.h
- * Uncomment the target name what you want to target.
- */
-
-#ifndef MINIBOARD_PCA9665_ACCESS__
-#define MINIBOARD_PCA9665_ACCESS__
-
-
-#define OP_MODE_BOTH 0
-#define OP_MODE_MASTER_ONLY 1
-#define OP_MODE_SLAVE_ONLY 2
-
-#define RESTART_DISABLE 0
-#define STOP RESTART_DISABLE
-#define RESTART_ENABLE 1
-#define NEXT_RESTART RESTART_ENABLE
-
-#define PCA9665_BURST_DATA_ACCESS
-
-
-typedef enum {
- SPEED_STD_MODE = 0,
- SPEED_FAST_MODE = 1,
- SPEED_FAST_MODE_PLUS = 2
-}
-speed_mode_val;
-
-typedef enum {
- DISABLE = 0,
- ENABLE = 1
-}
-buffer_mode_flag;
-
-void set_speed_mode( int mode );
-void set_buffer_mode( int mode );
-
-int i2c_write( char addr, char *dp, char length, char restart_flag );
-int i2c_read( char addr, char *dp, char length, char restart_flag );
-
-int i2c_write_buffer_mode( char addr, char *dp, char length, char restart_flag );
-int i2c_read_buffer_mode( char addr, char *dp, char length, char restart_flag );
-
-int i2c_write_byte_mode( char addr, char *dp, char length, char restart_flag );
-int i2c_read_byte_mode( char addr, char *dp, char length, char restart_flag );
-
-void PCA9665_init( void );
-
-void indirect_write( char idaddr, char data );
-char indirect_read( char idaddr );
-
-#endif // MINIBOARD_PCA9665_ACCESS__
-
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mini_board_libs/PCU9669.lib Mon Mar 26 15:23:45 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/nxp_ip/libraries/PCU9669/m7hiuh \ No newline at end of file
--- a/mini_board_libs/PCU9669/.lib Mon Mar 26 06:17:23 2012 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -http://mbed.org/users/nxp_ip/libraries/PCU9669/m6xbaz \ No newline at end of file
--- a/mini_board_libs/PCU9669/PCU9669_access.c Mon Mar 26 06:17:23 2012 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,130 +0,0 @@
-/** A sample code for "mini board PCU9669/PCA9665"
- *
- * @author Tedd OKANO, NXP Semiconductors
- * @version 0.9
- * @date 14-Feb-2011
- *
- * Released under the MIT License: http://mbed.org/license/mit
- *
- * An operation sample of PCU9669/PCA9665 I2C bus controller.
- * The mbed accesses the bus controller's parallel port (8/2 bit address and 8 bit data) by bit-banging.
- * The bit-banging is poerformed by PortInOut function of mbed library.
- *
- * To make the code porting easier, all codes are partitioned into layers to abstract other parts.
- * The mbed specific parts are concentrated in lowest layer: "hardware_abs.*".
- * This module may need to be modified for the porting.
- *
- * All other upper layers are writen in standard-C.
- *
- * base code is written from 05-Sep-2011 to 09-Sep-2011.
- * And demo code has been build on 11-Sep-2011.
- * Debug and code adjustment has been done on 08-Sep-2011.
- * Small sanitization for main.cpp. All mbed related codes are moved in to "hardware_abs.*". 13-Oct-2011
- * hardware_abs are moved into parallel_bus library folder, 3 LED driver operation sample 13-Feb.-2012
- * PCU9669 and PCA9665 codes are packed in a project 14-Feb-2012.
- *
- * Before builidng the code, please edit the file mini_board_PCU9669/config.h
- * Uncomment the target name what you want to target.
- */
-
-/*
- * "PCU9669_access" module abstracts PCU9669 register and data buffer access.
- * This gives simple interface to the bus controller.
- * All this interface works on "hardware_abs" module.
- */
-
-#include "PCU9669_access.h" // PCU9669 chip access interface
-#include "hardware_abs.h" // Using hardware abstraction interface
-
-//
-// prototypes (module private function prototypes)
-//
-
-int is_bus_controller_ready( void );
-int check_device_ID( char target_id );
-void registers_initialize( void );
-
-// variables
-
-char device_id_code; // keeps CHIP_ID value
-char ch_ofst[] = { OFFSET_CH0, OFFSET_CH1, OFFSET_CH2 }; // Address offsets of channel registers
-
-// Channel register writing function
-
-void write_ch_register( char ch, char reg, char val ) {
- write_data( ch_ofst[ ch ] + reg, val );
-}
-
-// Channel register reading function
-
-char read_ch_register( char ch, char reg ) {
- return( read_data( ch_ofst[ ch ] + reg ) );
-}
-
-// Start routine: It checks the bus controller can be accessed, chip-ID value and initializes registers.
-
-int start_bus_controller( char target_id ) {
- if ( is_bus_controller_ready() )
- return 1;
-
- if ( check_device_ID( target_id ) )
- return 2;
-
- registers_initialize();
-
- return 0;
-}
-
-// (module private finction, called by start_bus_controller)
-// checks if the bus controller can be accessed
-
-int is_bus_controller_ready( void ) {
- return ( read_data( CTRLRDY ) );
-}
-
-// (module private finction, called by start_bus_controller)
-// checks if chip-ID value is same as expected. The "TARGET_BUS_CONTROLLER" value can be modified in "PCU9669_access.h"
-
-int check_device_ID( char target_id ) {
- device_id_code = read_data( DEVICE_ID );
-// printf( "Target chip: PC%c96%02X, ID register value = 0x%02X\r\n", device_id_code & 0x80 ? 'U' : 'A', device_id_code & 0x7F, device_id_code );
-
- return ( target_id == device_id_code ) ? 0 : -1;
-}
-
-// (module private finction, called by start_bus_controller)
-// register initializations.
-
-void registers_initialize( void ) {
-
- // The PCU9669 does not require any specical register initializations.
- // It can start data transfer with default register settings.
- //
- // Or, if you need to have specific settings modify this function like following sample.
-
-#if 0
- write_ch_register( CH_UFM1, SCLPER, 32 );
- write_ch_register( CH_UFM1, SDADLY, 2 );
- write_ch_register( CH_UFM2, SCLPER, 32 );
- write_ch_register( CH_UFM2, SDADLY, 2 );
-#endif
-}
-
-// Next functions are option.
-// if the BURST_DATA_ACCESS is defined in "hardware_abs.h", it is propagated to define "PCU9969_BURST_DATA_ACCESS"
-// These interface may be useful for table and buffer access
-
-#ifdef PCU9969_BURST_DATA_ACCESS
-
-void write_ch_register_burst( char ch, char reg, char *vp, char length ) {
- write_data_burst( ch_ofst[ ch ] + reg, vp, length );
-}
-
-void read_ch_register_burst( char ch, char reg, char *vp, char length ) {
- read_data_burst( ch_ofst[ ch ] + reg, vp, length );
-}
-
-#endif
-
-
-
--- a/mini_board_libs/PCU9669/PCU9669_access.h Mon Mar 26 06:17:23 2012 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,192 +0,0 @@
-/** A sample code for "mini board PCU9669/PCA9665"
- *
- * @author Tedd OKANO, NXP Semiconductors
- * @version 0.9
- * @date 14-Feb-2011
- *
- * Released under the MIT License: http://mbed.org/license/mit
- *
- * An operation sample of PCU9669/PCA9665 I2C bus controller.
- * The mbed accesses the bus controller's parallel port (8/2 bit address and 8 bit data) by bit-banging.
- * The bit-banging is poerformed by PortInOut function of mbed library.
- *
- * To make the code porting easier, all codes are partitioned into layers to abstract other parts.
- * The mbed specific parts are concentrated in lowest layer: "hardware_abs.*".
- * This module may need to be modified for the porting.
- *
- * All other upper layers are writen in standard-C.
- *
- * base code is written from 05-Sep-2011 to 09-Sep-2011.
- * And demo code has been build on 11-Sep-2011.
- * Debug and code adjustment has been done on 08-Sep-2011.
- * Small sanitization for main.cpp. All mbed related codes are moved in to "hardware_abs.*". 13-Oct-2011
- * hardware_abs are moved into parallel_bus library folder, 3 LED driver operation sample 13-Feb.-2012
- * PCU9669 and PCA9665 codes are packed in a project 14-Feb-2012.
- *
- * Before builidng the code, please edit the file mini_board_PCU9669/config.h
- * Uncomment the target name what you want to target.
- */
-
-/** PCU9669 abstraction layer module
- *
- * Common access method is abstracted in this module.
- * Each channel's registers, global registers and buffer access can be through these interface.
- * This module works on top of hardware abstraction layer.
- */
-
-#ifndef __PCU9669_ACCESS__
-#define __PCU9669_ACCESS__
-
-#include "hardware_abs.h"
-
-/** @def PCU9669_ID / PCA9663_ID / TARGET_BUS_CONTROLLER
- *
- * Device IDs which can be read from DEVICE_ID register.
- * This value may need to be checked before the operation start.
- */
-#define PCU9669_ID 0xE9
-#define PCA9663_ID 0x63
-//#define TARGET_BUS_CONTROLLER PCA9663_ID
-
-/** @def CH_FM_PLUS / CH_UFM1 / CH_UFM2
- *
- * Channel number abstracted by its characters.
- */
-#define CH_FM_PLUS 0
-#define CH_UFM1 1
-#define CH_UFM2 2
-
-#define CH_0 0
-#define CH_1 1
-#define CH_2 2
-
-/** @var Register names
- *
- * PCU9669/9663 internal register name and addesses
- */
-typedef enum {
-
- // channel registers
-
- CONTROL = 0x00, // These are register offsets. offset base CH0=0xC0, CH1=0xD0, CH2=0xE0
- CHSTATUS,
- INTMSK,
- SLATABLE,
- TRANCONFIG,
- DATA,
- TRANSEL,
- TRANOFS,
- BYTECOUNT,
- FRAMECNT,
- REFRATE,
- SCLL,
- SCLH,
- MODE,
- TIMEOUT,
- PRESET,
-
- SCLPER = 0x0B,
- SDADLY = 0x0C,
- RESERVED = 0x0E,
-
- // global registers
-
- CTRLSTATUS = 0xF0,
- CTRLINTMSK,
- DEVICE_ID = 0xF6,
- CTRLPRESET,
- CTRLRDY = 0xFF,
-
- OFFSET_CH0 = 0xC0,
- OFFSET_CH1 = 0xD0,
- OFFSET_CH2 = 0xE0,
-
-} RegisterName;
-
-
-/** @var Devide ID code
- *
- * Keeps the value which is read from DEVICE_ID register
- */
-extern char device_id_code;
-
-
-/** Write channel register
- *
- * Writing 8 bit data into register in specified channel.
- * Register address offset of each channels is added in this function.
- *
- * @param ch target of channel: CH_FM_PLUS | CH_UFM1 | CH_UFM2
- * @param reg target channel register: RegisterName
- * @param val target of channel: 8 bit value
- * @see read_ch_register()
- */
-void write_ch_register( char ch, char reg, char val );
-
-/** Read channel register
- *
- * Read 8 bit data from register in specified channel.
- * Register address offset of each channels is added in this function.
- *
- * @return 8 bit value from the register
- * @param ch target of channel: CH_FM_PLUS | CH_UFM1 | CH_UFM2
- * @param reg target channel register: RegisterName
- * @see write_ch_register()
- */
-char read_ch_register( char ch, char reg );
-
-/** Starting the bus controller (i.e. PCU9669)
- *
- * Checks the bus controller get ready, and ChipID is correct
- * Then neccesary register initializations are done.
- * In this reference code, no register initialization done.
- * But if user need to do some, edit a module-private function "registers_initialize()" in "PCU9669_access.cpp"
- *
- * @return ZERO for no error, 1 for PCU9669 couldn't get ready after reset, 2 for ChipID was not match.
- */
-int start_bus_controller( char target_id );
-
-
-/** BURST_DATA_ACCESS option code
- *
- * Following code is enabled only when BURST_DATA_ACCESS is defined in "hardware_abs.h"
- */
-#ifdef BURST_DATA_ACCESS
-
-/** @def PCU9669_BURST_DATA_ACCESS
- *
- * PCU9669_BURST_DATA_ACCESS is defied to let upper layer know the burst access is available.
- * This happens onlny BURST_DATA_ACCESS is defined in "hardware_abs.h"
- */
-#define PCU9669_BURST_DATA_ACCESS
-
-/** Write channel register
- *
- * Write multiple bytes into a register in specified channel.
- * Register address offset of each channels is added in this function.
- *
- * @param ch target of channel: CH_FM_PLUS | CH_UFM1 | CH_UFM2
- * @param reg target channel register: RegisterName
- * @param *vp a pointer to char array. The data in the array will be written.
- * @param length length of the data (bytes)
- * @see read_ch_register_burst()
- */
-void write_ch_register_burst( char ch, char reg, char *vp, char length );
-
-/** Read channel register
- *
- * Read multiple bytes from a register in specified channel.
- * Register address offset of each channels is added in this function.
- *
- * @param ch target of channel: CH_FM_PLUS | CH_UFM1 | CH_UFM2
- * @param reg target channel register: RegisterName
- * @param *vp a pointer to char array. The data will be read into this.
- * @param length length of the data (bytes)
- * @see write_ch_register_burst()
- */
-void read_ch_register_burst( char ch, char reg, char *vp, char length );
-
-#endif // BURST_DATA_ACCESS
-
-#endif // __PCU9669_ACCESS__
-
--- a/mini_board_libs/PCU9669/transfer_manager.c Mon Mar 26 06:17:23 2012 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,179 +0,0 @@
-/** A sample code for "mini board PCU9669/PCA9665"
- *
- * @author Tedd OKANO, NXP Semiconductors
- * @version 0.9
- * @date 14-Feb-2011
- *
- * Released under the MIT License: http://mbed.org/license/mit
- *
- * An operation sample of PCU9669/PCA9665 I2C bus controller.
- * The mbed accesses the bus controller's parallel port (8/2 bit address and 8 bit data) by bit-banging.
- * The bit-banging is poerformed by PortInOut function of mbed library.
- *
- * To make the code porting easier, all codes are partitioned into layers to abstract other parts.
- * The mbed specific parts are concentrated in lowest layer: "hardware_abs.*".
- * This module may need to be modified for the porting.
- *
- * All other upper layers are writen in standard-C.
- *
- * base code is written from 05-Sep-2011 to 09-Sep-2011.
- * And demo code has been build on 11-Sep-2011.
- * Debug and code adjustment has been done on 08-Sep-2011.
- * Small sanitization for main.cpp. All mbed related codes are moved in to "hardware_abs.*". 13-Oct-2011
- * hardware_abs are moved into parallel_bus library folder, 3 LED driver operation sample 13-Feb.-2012
- * PCU9669 and PCA9665 codes are packed in a project 14-Feb-2012.
- *
- * Before builidng the code, please edit the file mini_board_PCU9669/config.h
- * Uncomment the target name what you want to target.
- */
-
-/*
- * "transfer_manager" is a module to manage I2C bus transfers.
- * In this sample code, single slave access (from START or RESTART condition to STOP or next RESTART
- * condition) is called transaction.
- *
- * In this software, the transaction is a struct (the struct is defined in "transfer_manager.h")
- *
- * typedef struct transaction_st {
- * char i2c_address __attribute__((packed));
- * char *data __attribute__((packed));
- * char length __attribute__((packed));
- * }
- * transaction;
- *
- * The transaction has target I2C slave address pointer to the data array and the data length.
- * Read/write drection is maneged by LSB of the i2c_address.
- *
- * For the reading, in this version, a dummy data array can be used but it need to have actual data
- * because it will be accessed for buffer filling.
- * And transfer manager doesn't readback the buffer. So user need to readback by "buffer_read()"
- * function after transaction executed.
- *
- * A transfer can be represented by array of transaction, i.e...
- *
- * transaction a_sample_of_transfer[];
- *
- * This array_of_transaction: "transfer" is used for the setting of the registers and buffers.
- *
- * See "main.cpp" for the actual sample of those transfer/transaction usage
- */
-
-#include "transfer_manager.h"
-#include "PCU9669_access.h" // PCU9669 chip access interface
-
-void setup_transfer( char ch, transaction *t, char n_of_transaction ) {
- int i;
-#ifdef PCU9969_BURST_DATA_ACCESS
-#else
- int j;
-#endif
-
- write_ch_register( ch, CONTROL, 0x02 ); // AIPTRRST : AutoIncrementPointerReset (for SLATABLE TRANCONFIG and DATA)
-
- for ( i = 0; i < n_of_transaction; i++ )
- write_ch_register( ch, SLATABLE, (t + i)->i2c_address ); //
-
- write_ch_register( ch, TRANCONFIG, n_of_transaction ); // first byte of TRANCONFIG sets to # of transactions
- write_ch_register( ch, TRANSEL, 0 ); // select #0 transaction
-
- for ( i = 0; i < n_of_transaction; i++ )
- write_ch_register( ch, TRANCONFIG, (t + i)->length );
-
-
-#ifdef PCU9969_BURST_DATA_ACCESS
- for ( i = 0; i < n_of_transaction; i++ )
- write_ch_register_burst( ch, DATA, ((t + i)->data), (t + i)->length );
-
-#else
- for ( i = 0; i < n_of_transaction; i++ )
- for ( j = 0; j < (t + i)->length; j++ )
- write_ch_register( ch, DATA, *(((t + i)->data) + j) );
-#endif
-}
-
-
-void set_n_of_transaction( char ch, char n_of_transaction )
-{
- write_ch_register( ch, CONTROL, 0x02 ); // AIPTRRST : AutoIncrementPointerReset (for SLATABLE TRANCONFIG and DATA)
- write_ch_register( ch, TRANCONFIG, n_of_transaction ); // first byte of TRANCONFIG sets to # of transactions
-}
-
-
-void buffer_overwrite( char ch, char transaction_number, char offset, char *data, char length ) {
-#ifdef PCU9969_BURST_DATA_ACCESS
-#else
- int i;
-#endif
-
- write_ch_register( ch, TRANSEL, transaction_number );
- write_ch_register( ch, TRANOFS, offset );
-
-#ifdef PCU9969_BURST_DATA_ACCESS
- write_ch_register_burst( ch, DATA, data, length );
-#else
- for ( i = 0; i < length; i++ )
- write_ch_register( ch, DATA, *data++ );
-#endif
-}
-
-void buffer_read( char ch, char transaction_number, char offset, char *data, char length ) {
-#ifdef PCU9969_BURST_DATA_ACCESS
-#else
- int i;
-#endif
-
- write_ch_register( ch, TRANSEL, transaction_number );
- write_ch_register( ch, TRANOFS, offset );
-
-#ifdef PCU9969_BURST_DATA_ACCESS
- read_ch_register_burst( ch, DATA, data, length );
-#else
- for ( i = 0; i < length; i++ )
- *data++ = read_ch_register( ch, DATA );
-#endif
-}
-
-void start( char ch ) {
- write_ch_register( ch, CONTROL, 0x40 );
-}
-
-void start_by_trigger( char ch, char polarity ) {
- write_ch_register( ch, CONTROL, 0x48 | (polarity ? 0x10 : 0x00 ) );
-}
-
-void stop( char ch ) {
- write_ch_register( ch, CONTROL, 0x20 ); // set STO bit
-}
-
-/* for test of register access order variation */
-/*
-void setup_transfer( char ch, transaction *t, char n_of_transaction ) {
- int i;
- int j;
-
- write_ch_register( ch, CONTROL, 0x02 ); // AIPTRRST : AutoIncrementPointerReset (for SLATABLE TRANCONFIG and DATA)
- write_ch_register( ch, TRANCONFIG, n_of_transaction ); // first byte of TRANCONFIG sets to # of transactions
- write_ch_register( ch, TRANSEL, 0 ); // select #0 transaction
-
- for ( i = 0; i < n_of_transaction; i++ ) {
- write_ch_register( ch, SLATABLE, (t + i)->i2c_address ); //
- write_ch_register( ch, TRANCONFIG, (t + i)->length );
- write_ch_register_burst( ch, DATA, ((t + i)->data), (t + i)->length );
- }
-}
-*/
-
-/*
-void single_transaction_buffer_fill( char ch, char slot, transaction *tp ) {
- int i;
-
- write_ch_register( ch, CONTROL, 0x02 ); // AIPTRRST : AutoIncrementPointerReset (for SLATABLE TRANCONFIG and DATA)
- write_ch_register( ch, TRANSEL, slot ); // select #0 transfer
- write_ch_register( ch, TRANCONFIG, 1 ); // first byte of TRANCONFIG sets to # of transactions
- write_ch_register( ch, TRANCONFIG, tp->length ); // length of first transaction
- write_ch_register( ch, SLATABLE, tp->i2c_address ); //
-
- for ( i = 0; i < length; i++ )
- write_ch_register( ch, DATA, *data++ ); //
-}
-*/
--- a/mini_board_libs/PCU9669/transfer_manager.h Mon Mar 26 06:17:23 2012 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,132 +0,0 @@
-/** A sample code for "mini board PCU9669/PCA9665"
- *
- * @author Tedd OKANO, NXP Semiconductors
- * @version 0.9
- * @date 14-Feb-2011
- *
- * Released under the MIT License: http://mbed.org/license/mit
- *
- * An operation sample of PCU9669/PCA9665 I2C bus controller.
- * The mbed accesses the bus controller's parallel port (8/2 bit address and 8 bit data) by bit-banging.
- * The bit-banging is poerformed by PortInOut function of mbed library.
- *
- * To make the code porting easier, all codes are partitioned into layers to abstract other parts.
- * The mbed specific parts are concentrated in lowest layer: "hardware_abs.*".
- * This module may need to be modified for the porting.
- *
- * All other upper layers are writen in standard-C.
- *
- * base code is written from 05-Sep-2011 to 09-Sep-2011.
- * And demo code has been build on 11-Sep-2011.
- * Debug and code adjustment has been done on 08-Sep-2011.
- * Small sanitization for main.cpp. All mbed related codes are moved in to "hardware_abs.*". 13-Oct-2011
- * hardware_abs are moved into parallel_bus library folder, 3 LED driver operation sample 13-Feb.-2012
- * PCU9669 and PCA9665 codes are packed in a project 14-Feb-2012.
- *
- * Before builidng the code, please edit the file mini_board_PCU9669/config.h
- * Uncomment the target name what you want to target.
- */
-
-/** Data transfer is abstracted on this layer
- *
- * The transer can be managed by a struct and some functions
- */
-#ifndef __TRANSFER_MANAGER__
-#define __TRANSFER_MANAGER__
-
-#define TRIGGER_BY_RISING_EDGE 0
-#define TRIGGER_BY_FALLING_EDGE 1
-
-/** @typedef transaction
- *
- * A transaction (single data read/write access to the slave) is managed by this structure
- * An array of the transaction makes a transfer.
- * The sample of the transfer management can be found in "main.cpp".
- */
-typedef struct transaction_st {
- char i2c_address __attribute__((packed));
- char *data __attribute__((packed));
- char length __attribute__((packed));
-}
-transaction;
-
-/** Setup transfer
- *
- * A transfer (consists multiple transactions) will be set into the buffer.
- * This function only sets the data.
- *
- * @param ch target of channel: CH_FM_PLUS | CH_UFM1 | CH_UFM2
- * @param *t a pointer to transaction array. This array represents a transfer.
- * @param n_of_transaction number of transactions (how many transactions in this transfer)
- * @see setup_transfer()
- * @see buffer_overwrite()
- * @see buffer_read()
- * @see start()
- */
-void setup_transfer( char ch, transaction *t, char n_of_transaction );
-
-/** Set N of transaction
- *
- * To modify the N_OF_TRANSACTION
- * This can be used to ignore transactions after specified transaction
- *
- * @param ch target of channel: CH_FM_PLUS | CH_UFM1 | CH_UFM2
- * @param n_of_transaction number of transactions (how many transactions in this transfer)
- * @see setup_transfer()
- * @see buffer_overwrite()
- * @see buffer_read()
- * @see start()
- */
-void set_n_of_transaction( char ch, char n_of_transaction );
-
-/** Buffer overwrite (in a transaction)
- *
- * Buffer contents in a transaction can be overwritten.
- *
- * @param ch target of channel: CH_FM_PLUS | CH_UFM1 | CH_UFM2
- * @param transaction_number points the target transaction by number.
- * @param offset offset of overwriting start byte
- * @param *data pointer to char array, this contents will be written
- * @param length number of bytes to overwrite
- * @see setup_transfer()
- * @see buffer_overwrite()
- * @see buffer_read()
- * @see start()
- */
-void buffer_overwrite( char ch, char transaction_number, char offset, char *data, char length );
-
-/** Buffer read (in a transaction)
- *
- * Buffer read interface.
- *
- * @param ch target of channel: CH_FM_PLUS | CH_UFM1 | CH_UFM2
- * @param transaction_number points the target transaction by number.
- * @param offset offset of reading start byte
- * @param *data pointer to char array, the data will be written here
- * @param length number of bytes to read
- * @see setup_transfer()
- * @see buffer_overwrite()
- * @see buffer_read()
- * @see start()
- */
-void buffer_read( char ch, char transaction_number, char offset, char *data, char length );
-
-/** Start transfer
- *
- * Starts the transfer of specified channel
- *
- * @param ch target of channel: CH_FM_PLUS | CH_UFM1 | CH_UFM2
- * @see setup_transfer()
- * @see buffer_overwrite()
- * @see buffer_read()
- * @see start()
- */
-void start( char ch );
-void start_by_trigger( char ch, char polarity );
-void stop( char ch );
-
-// void single_transaction_buffer_fill( char ch, char *data, char length );
-
-
-#endif // __TRANSFER_MANAGER__
-
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mini_board_libs/parallel_bus.lib Mon Mar 26 15:23:45 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/nxp_ip/libraries/parallel_bus/m7i4uc \ No newline at end of file
--- a/mini_board_libs/parallel_bus/.lib Mon Mar 26 06:17:23 2012 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -http://mbed.org/users/nxp_ip/libraries/parallel_bus/m6x9xb \ No newline at end of file
--- a/mini_board_libs/parallel_bus/hardware_abs.c Mon Mar 26 06:17:23 2012 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,220 +0,0 @@
-/** A sample code for "mini board PCU9669/PCA9665"
- *
- * @author Tedd OKANO, NXP Semiconductors
- * @version 0.9
- * @date 14-Feb-2011
- *
- * Released under the MIT License: http://mbed.org/license/mit
- *
- * An operation sample of PCU9669/PCA9665 I2C bus controller.
- * The mbed accesses the bus controller's parallel port (8/2 bit address and 8 bit data) by bit-banging.
- * The bit-banging is poerformed by PortInOut function of mbed library.
- *
- * To make the code porting easier, all codes are partitioned into layers to abstract other parts.
- * The mbed specific parts are concentrated in lowest layer: "hardware_abs.*".
- * This module may need to be modified for the porting.
- *
- * All other upper layers are writen in standard-C.
- *
- * base code is written from 05-Sep-2011 to 09-Sep-2011.
- * And demo code has been build on 11-Sep-2011.
- * Debug and code adjustment has been done on 08-Sep-2011.
- * Small sanitization for main.cpp. All mbed related codes are moved in to "hardware_abs.*". 13-Oct-2011
- * hardware_abs are moved into parallel_bus library folder, 3 LED driver operation sample 13-Feb.-2012
- * PCU9669 and PCA9665 codes are packed in a project 14-Feb-2012.
- *
- * Before builidng the code, please edit the file mini_board_PCU9669/config.h
- * Uncomment the target name what you want to target.
- */
-
-/*
- * "hardware_abs" module has been made to abstract hardware: Hardware abstract layer
- * This is file which will be modified when the porting done for other MCUs.
- */
-
-/*
- * This sample code has been made for mbed. The code emulates parallel SRAM bus using the mbed's GPIO ports.
- * To maximize the port access speed, PortOut and PortInOut libraly used.
- */
-
-#include "mbed.h"
-#include "hardware_abs.h"
-
-// GPIO port setting
-
-#define ADDR_MASK 0x07878000 // 8 bit address mask on PORT0: Address value will be set into this bit position
-#define DATA_MASK 0x00000FF0 // 8 bit data mask on PORT0: Data value will be appeared on this bit position
-#define CONTROL_MASK 0x00000038 // Control signals CS=bit5(pin21), WR=bit4(pin22), RD=bit3(pin23)
-
-PortOut addr_port( Port0, ADDR_MASK );
-PortInOut data_port( Port0, DATA_MASK );
-PortOut ctrl_port( Port2, CONTROL_MASK );
-InterruptIn int_port( p26 );
-
-// The very early version of PCU9669 mini board has different configuration.
-// Following part switches the port configuration for those board versions.
-
-//#define PROTOTYPE_BREADBOARD
-
-DigitalInOut reset_port( p20 );
-//DigitalOut trig_port( p19 );
-
-// Next two macros defines interface for temporaly interrupt disable/enable functions.
-// These macros are used to blocking interrupt until a bus access cycle completed.
-// Because if the interrupt happened in a cycle, the emulated parallel port state will be disturbed.
-// For the mbed, library routine: __disable_irq() / __enable_irq() can be used.
-
-#define interrupt_enable() __enable_irq()
-#define interrupt_disable() __disable_irq()
-
-// "prev_access_was_write" is a variable to keep the previous data directions.
-// Using this flag, successive write and read addess overhead can be reduced.
-// This mechanism will not be required if the MCU has parallel port
-
-char prev_access_was_write;
-
-// ISR routine installer
-
-void install_ISR( void (*fptr)(void) ) {
- int_port.fall( fptr );
-}
-
-// Hardware initialize: it defines initial state of the (emulated) parallel bus
-
-void hardware_initialize( void ) {
- prev_access_was_write = 0;
- ctrl_port = 0x38; // CS, WR and RD are deaserted (HIGH)
- data_port.input(); // data bus set to Hi-Z
- reset_port.output();
- reset_port.mode( PullUp );
-}
-
-// Hardware reset for PCU9669: It asserts RESET signal for 4us and waits 650us after deassert (reset recovery time)
-
-void reset( int reset_pulse_width_us, int reset_recovery_us ) {
- hardware_reset( ASSERT ); // Minimum pulse width is 4us for PCU9669
- hw_wait_us( reset_pulse_width_us );
- hardware_reset( DEASSERT ); // deassert hardware /RESET sgnal
- hw_wait_us( reset_recovery_us );
-}
-
-// Interface to Control hardware RESET signal
-
-void hardware_reset( char signal ) {
- reset_port = signal;
-}
-
-// Interface to Control hardware TRIGGER signal
-
-void hardware_trigger( char signal ) {
-// trig_port = signal;
-}
-
-// Single write cycle on (emulated) parallel bus
-
-void write_data( char addr, char data ) {
- interrupt_disable(); // disable interrupt first
-
- addr_port = (addr << 19) | (addr << 15); // Address output
- ctrl_port = 0x08; // Assert CS and WR signals
-
- if ( !prev_access_was_write ) // Data bus direction control
- data_port.output();
-
- prev_access_was_write = 1;
-
- data_port = data << 4; // Data output
- ctrl_port = 0x38; // Deassert CS and WR
-
- interrupt_enable(); // enable interrupt again
-}
-
-
-char read_data( char addr ) {
- volatile char tmp;
- interrupt_disable(); // disable interrupt first
-
- if ( prev_access_was_write ) // Data bus direction control
- data_port.input();
-
- prev_access_was_write = 0;
-
- addr_port = (addr << 19) | (addr << 15); // Address output
- ctrl_port = 0x10; // Assert CS and RD signals
- ctrl_port = 0x10; // asserting CS and RD pulse twice (but those are kept LOW) to wait short time till actual read timing
- tmp = (data_port >> 4) & 0xFF; // Read data bus into var
- ctrl_port = 0x38; // Deassert CS and RD
-
- interrupt_enable(); // enable interrupt again
-
- return ( tmp );
-}
-
-// Wait for micro-seconds
-
-void hw_wait_us( int v ) {
- wait_us( v );
-}
-
-// Wait for seconds
-
-void wait_sec( float f ) {
- wait( f );
-}
-
-// Following part is an optionto accerelate bus access.
-// If such trick is not required, undefine the "BURST_DATA_ACCESS" and don't touch it.
-//
-// Next two functions access single address with repeating read/write.
-// The repeating read/write are used often for PCU9669 like SLATABLE, TRANCONFIG and DATA (buffer accesses).
-// So this accerelation contributes saving MCU time.
-//
-// For the porting, it may be good idea to modify those routines to DMA access.
-
-#ifdef BURST_DATA_ACCESS
-
-void write_data_burst( char addr, char *data, char length ) {
- int i;
-
- interrupt_disable(); // disable interrupt first
-
- addr_port = (addr << 19) | (addr << 15); // Address output
-
- if ( !prev_access_was_write ) // Data bus direction control
- data_port.output();
-
- prev_access_was_write = 1;
-
- for ( i = 0; i < length; i++ ) { // repeat data write access
- ctrl_port = 0x08;
- data_port = *(data + i) << 4;
- ctrl_port = 0x38;
- }
-
- interrupt_enable();
-}
-
-void read_data_burst( char addr, char *data, char length ) {
- int i;
-
- interrupt_disable(); // disable interrupt first
-
- addr_port = (addr << 19) | (addr << 15); // Address output
-
- if ( prev_access_was_write ) // Data bus direction control
- data_port.input();
-
- prev_access_was_write = 0;
-
- for ( i = 0; i < length; i++ ) { // repeat data read access
- ctrl_port = 0x10;
- ctrl_port = 0x10;
-
- *(data + i) = (data_port >> 4) & 0xFF;
- ctrl_port = 0x38;
- }
- interrupt_enable();
-}
-
-#endif
-
--- a/mini_board_libs/parallel_bus/hardware_abs.h Mon Mar 26 06:17:23 2012 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,170 +0,0 @@ -/** A sample code for "mini board PCU9669/PCA9665" - * - * @author Tedd OKANO, NXP Semiconductors - * @version 0.9 - * @date 14-Feb-2011 - * - * Released under the MIT License: http://mbed.org/license/mit - * - * An operation sample of PCU9669/PCA9665 I2C bus controller. - * The mbed accesses the bus controller's parallel port (8/2 bit address and 8 bit data) by bit-banging. - * The bit-banging is poerformed by PortInOut function of mbed library. - * - * To make the code porting easier, all codes are partitioned into layers to abstract other parts. - * The mbed specific parts are concentrated in lowest layer: "hardware_abs.*". - * This module may need to be modified for the porting. - * - * All other upper layers are writen in standard-C. - * - * base code is written from 05-Sep-2011 to 09-Sep-2011. - * And demo code has been build on 11-Sep-2011. - * Debug and code adjustment has been done on 08-Sep-2011. - * Small sanitization for main.cpp. All mbed related codes are moved in to "hardware_abs.*". 13-Oct-2011 - * hardware_abs are moved into parallel_bus library folder, 3 LED driver operation sample 13-Feb.-2012 - * PCU9669 and PCA9665 codes are packed in a project 14-Feb-2012. - * - * Before builidng the code, please edit the file mini_board_PCU9669/config.h - * Uncomment the target name what you want to target. - */ - -/** Hardware abstraction layer module - * - * All MCU hardware related code are defined in this module - * This module may need to be modified when the code is ported to other MCU. - */ - -#ifndef MINIBOARD_HARDWARE_ABS__ -#define MINIBOARD_HARDWARE_ABS__ - -/** @def BURST_DATA_ACCESS - * - * To accelerate multiple bus access on same addess, use BURST_DATA_ACCESS - * On the mbed emvironment, this burst access enables 3 times faster read/write compare to single access. - * For code porting, the BURST_DATA_ACCESS code part is not neccesary if the hardware is fast enough. - */ -#define BURST_DATA_ACCESS - - -/** @def ASSERT / DEASSERT - * - * Reset signal logic difinition - */ -#define ASSERT 0 // for hardware reset -#define DEASSERT 1 // for hardware reset - - -/** Install an ISR - * - * Registering function as ISR. - * The function will be called when the interrupt asserted. - * - * @param fptr a pointer to a function - */ -void install_ISR( void (*fptr)(void) ); - -/** Hardware initialization - * - * MCU side initialization should be done in this function. - * For the mbed, it set the initial state of parallel bus control signal. - */ -void hardware_initialize( void ); - -/** Reset signal control - * - * This function drives the RESET signal line with given state. - * - * @param signal the state of RESET signal: ASSERT | DEASSERT - */ -void hardware_reset( char signal ); - -/** Hardware reset - * - * Asserts the RESET signal with required pulse width and waits its recovery time - * - * @param reset_pulse_width_us RESET pulse width in micro-seconds - * @param reset_recovery_us RESET recovery time in micro-seconds (wait time after RESET de-assertion) - */ -void reset( int reset_pulse_width_us, int reset_recovery_us ); - -/** Triger signal control - * - * This function drives the TRIGGER signal line with given state. - * - * @param signal the state of TRIGGER signal: ASSERT | DEASSERT - */ -void hardware_trigger( char signal ); - -/** Write data - * - * Writes 1 byte - * - * @param addr 8 bit address where the data should be written to - * @param data 8 bit data which will be written - * @see read_data() - */ -void write_data( char addr, char data ); - -/** Read data - * - * Reads 1 byte - * - * @return 8 bit data which is read from bus - * @param addr 8 bit address where the data should be read from - * @see write_data() - */ -char read_data( char addr ); - -/** Wait micro-seconds - * - * Wait function waits given-micro-seconds - * - * @param micro-seconds the program should wait (32 bit integer value) - * @see wait_sec() - */ -void hw_wait_us( int v ); - -/** Wait seconds - * - * Wait function waits given-seconds - * - * @param seconds the program should wait (float value) - * @see hw_wait_us() - */ -void wait_sec( float ); - - -/** BURST_DATA_ACCESS option code - * - * This code is option to accelerate the bus access - */ -#ifdef BURST_DATA_ACCESS - -/** Write data - * - * Writes multiple bytes to same address. - * This function suitable to use for the registers like SLATABLE, TRANCONFIG and data buffers (through DATA register). - * While this access is going, the interrupt will be tempolary disabled (ISR execution will be postponed) - * - * @param addr 8 bit address where the data should be written to - * @param *data pointer to char array. The data in this array will be written - * @param length length of the data (bytes) - * @see read_data_burst() - */ -void write_data_burst( char addr, char *data, char length ); - -/** Read data - * - * Reads multiple bytes from same address. - * This function suitable to use for the registers like SLATABLE, TRANCONFIG and data buffers (through DATA register). - * While this access is going, the interrupt will be tempolary disabled (ISR execution will be postponed) - * - * @param addr 8 bit address where the data should be written to - * @param *data pointer to char array. The read data will be written to this - * @param length length of the data (bytes) - * @see write_data_burst() - */ -void read_data_burst( char addr, char *data, char length ); -#endif - -#endif // MINIBOARD_HARDWARE_ABS__ -
--- a/mini_board_libs/utility.lib Mon Mar 26 06:17:23 2012 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -http://mbed.org/users/nxp_ip/libraries/utility/m6x939 \ No newline at end of file