Gert van der Knokke / Mbed 2 deprecated SPI_LCD

This is a sample program to drive a 128x128 LCD with t6963 controller through SPI by means of an MCP23S17 16-Bit I/O Expander with Serial Interface

Dependencies:   mbed

Files at this revision

API Documentation at this revision

Revision 1:e98e29ea2d03, committed 2010-12-05

Comitter:
gertk
Date:
Sun Dec 05 14:38:10 2010 +0000
Parent:
0:bf72877f77ab
Child:
2:9071445a6895
Commit message:
0.0002

Changed in this revision

MCP23S17.h Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mcp_lcd.h Show annotated file Show diff for this revision Revisions of this file 
--- a/MCP23S17.h	Sun Dec 05 14:31:49 2010 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,54 +0,0 @@
-/* MCP23S17 - drive the Microchip MCP23S17 16-bit Port Extender using SPI
-* Copyright (c) 2010 Romilly Cocking
-* Released under the MIT License: http://mbed.org/license/mit
-*
-* version 0.4
-*/
-#include "mbed.h"
-
-
-#define INTERRUPT_POLARITY_BIT 0x02
-#define INTERRUPT_MIRROR_BIT   0x40
-
-// all register addresses assume IOCON.BANK = 0 (POR default)
-
-#define IODIRA      0x00
-#define IODIRB      0x01
-#define IPOLA       0x02
-#define IPOLB       0x03
-#define GPINTENA    0x04
-#define GPINTENB    0x05
-#define DEFVALA     0x06
-#define DEFVALB     0x07
-#define INTCONA     0x08
-#define INTCONB     0x09
-#define IOCONA      0x0A
-#define IOCONB      0x0B
-#define GPPUA       0x0C
-#define GPPUB       0x0D
-#define INTFA       0x0E
-#define INTFB       0x0F
-#define INTCAPA     0x10
-#define INTCAPB     0x11
-#define GPIOA       0x12
-#define GPIOB       0x13
-#define OLATA       0x14
-#define OLATB       0x15
-
-#define LCD_HALT    0x80
-#define LCD_FS      0x20
-#define LCD_RST     0x10
-#define LCD_CD      0x08
-#define LCD_CE      0x04
-#define LCD_RD      0x02
-#define LCD_WR      0x01
-
-//      T6963C OPCODES
-#define TXHOME      0x40    // SET TXT HM ADD
-#define TXAREA      0x41    // SET TXT AREA
-#define GRHOME      0x42    // SET GRAPHIC HOME ADDRESS
-#define GRAREA      0x43    // SET GRAPHIC AREA
-#define OFFSET      0x22    // SET OFFSET ADDRESS
-#define ADPSET      0x24    // SET ADDRESS POINTER
-#define AWRON       0xB0    // SET AUTO WRITE MODE
-#define AWROFF      0xB2    // RESET AUTO WRITE MODE

--- a/main.cpp	Sun Dec 05 14:31:49 2010 +0000
+++ b/main.cpp	Sun Dec 05 14:38:10 2010 +0000
@@ -1,5 +1,5 @@
 #include "mbed.h"
-#include "MCP23S17.h"
+#include "mcp_lcd.h"
 
 #define LCDFONTSEL  0xFF
 DigitalOut myled(LED1);
@@ -98,6 +98,7 @@
 {
     while (s[0])
     {
+        // convert from ascii to t6963
         lcd_data(s[0]-32);
         s++;
     }

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mcp_lcd.h	Sun Dec 05 14:38:10 2010 +0000
@@ -0,0 +1,46 @@
+/* MCP23S17 - Microchip MCP23S17 16-bit Port Extender using SPI
+* Copyright (c) 2010 Gert van der Knokke
+*/
+#include "mbed.h"
+
+#define IODIRA      0x00
+#define IODIRB      0x01
+#define IPOLA       0x02
+#define IPOLB       0x03
+#define GPINTENA    0x04
+#define GPINTENB    0x05
+#define DEFVALA     0x06
+#define DEFVALB     0x07
+#define INTCONA     0x08
+#define INTCONB     0x09
+#define IOCONA      0x0A
+#define IOCONB      0x0B
+#define GPPUA       0x0C
+#define GPPUB       0x0D
+#define INTFA       0x0E
+#define INTFB       0x0F
+#define INTCAPA     0x10
+#define INTCAPB     0x11
+#define GPIOA       0x12
+#define GPIOB       0x13
+#define OLATA       0x14
+#define OLATB       0x15
+
+// LCD pin connections/bit numbers
+#define LCD_HALT    0x80
+#define LCD_FS      0x20
+#define LCD_RST     0x10
+#define LCD_CD      0x08
+#define LCD_CE      0x04
+#define LCD_RD      0x02
+#define LCD_WR      0x01
+
+//      T6963C OPCODES
+#define TXHOME      0x40    // SET TXT HM ADD
+#define TXAREA      0x41    // SET TXT AREA
+#define GRHOME      0x42    // SET GRAPHIC HOME ADDRESS
+#define GRAREA      0x43    // SET GRAPHIC AREA
+#define OFFSET      0x22    // SET OFFSET ADDRESS
+#define ADPSET      0x24    // SET ADDRESS POINTER
+#define AWRON       0xB0    // SET AUTO WRITE MODE
+#define AWROFF      0xB2    // RESET AUTO WRITE MODE