Tedd OKANO
PCA9955A test program
Revision 0:a173ba5ecb1a, committed 2014-07-11
- Comitter:
- okano
- Date:
- Fri Jul 11 03:04:51 2014 +0000
- Child:
- 1:0a5e299bf3ef
- Commit message:
- very simple PCA9955A control sample
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Jul 11 03:04:51 2014 +0000
@@ -0,0 +1,39 @@
+#include "mbed.h"
+
+I2C i2c( p28, p27 ); // SDA, SCL
+
+#define SLAVE_ADDR 0x02
+
+#define AUTO_INCREMENT 0x80
+#define REGISTER_START 0x00
+#define LEDOUT_REGISTER_START 0x02
+#define PWM_REGISTER_START 0x08
+#define IREF_REGISTER_START 0x18
+#define PWMALL_REGISTER_ADDR 0x44
+#define IREFALL_REGISTER_ADDR 0x45
+
+
+int main()
+{
+ char init_data0[] = { AUTO_INCREMENT | REGISTER_START, 0x00, 0x05, 0xAA, 0xAA, 0xAA, 0xAA };
+ char init_data1[] = { IREFALL_REGISTER_ADDR, 0x10 };
+ char data[ 2 ];
+
+ i2c.write( SLAVE_ADDR, init_data0, sizeof( init_data0 ) );
+ i2c.write( SLAVE_ADDR, init_data1, sizeof( init_data1 ) );
+
+ while(1) {
+ for ( int port = 0; port < 16; port++ ) {
+ for ( int i = 0; i < 256; i++ ) {
+ if ( !port && !i )
+ data[ 0 ] = PWMALL_REGISTER_ADDR;
+ else
+ data[ 0 ] = port + PWM_REGISTER_START;
+
+ data[ 1 ] = i;
+
+ i2c.write( SLAVE_ADDR, data, 2 );
+ }
+ }
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Jul 11 03:04:51 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/04dd9b1680ae \ No newline at end of file