Tedd OKANO
test code
Sample code for SC18IS606 class library
The SC18IS606 : I2C-bus to SPI bridge
Hello program operation sample on Mbed OS6 is available.
This is a "Hello" code for SC18IS606 class library. Showing how to send/receive data to/from SPI bus through this bridge chip.
How to wire the SC18IS606 (using evaluation board)
Diff: main.cpp
- Revision:
- 1:f0126d924ff8
- Parent:
- 0:45ec5ead6731
- Child:
- 2:6d65d24e55ed
--- a/main.cpp Tue Jul 13 07:20:21 2021 +0000
+++ b/main.cpp Tue Jul 13 08:34:17 2021 +0000
@@ -1,14 +1,9 @@
#include "mbed.h"
+#include "SC18IS606.h"
I2C i2c( p28, p27 );
-InterruptIn int_signal( p21 );
-
-
-#define TARG_ADDRESS 0x50
-#define FuncID_WRITE_BUFFER 0x00
-#define FuncID_ClearIntrrupt 0xF1
-
-#define SS_BITMAP 0x01
+InterruptIn int_line( p21 );
+SC18IS606 bridge( i2c );
volatile int int_flag = false;
@@ -19,27 +14,25 @@
int main()
{
- char s[ 256 + 1 ];
- char int_clear = FuncID_ClearIntrrupt;
-
- int_signal.mode( PullUp );
- int_signal.fall( &int_handler );
+ int_line.mode( PullUp );
+ int_line.fall( &int_handler );
i2c.frequency( 400 * 1000 );
- s[ 0 ] = FuncID_WRITE_BUFFER | SS_BITMAP;
+ s[ 256 ]
for ( int i = 0; i < 256; i++ ) {
- *(s + i + 1) = i;
+ s[ i ] = i;
}
-
while(1) {
- i2c.write( TARG_ADDRESS, s, sizeof( s ) );
+ bridge.transfer( s, NULL, sizeof( s ) );
while ( !int_flag )
;
- i2c.write( TARG_ADDRESS, &int_clear, sizeof( int_clear ) );
+// i2c.write( TARG_ADDRESS, &int_clear, sizeof( int_clear ) );
+ char dummy;
+ bridge.config( Clear_Interrupt, dummy );
int_flag = false;
wait_ms( 2 );