Tedd OKANO
/
PCA9955A_simple
PCA9955A test program
main.cpp
- Committer:
- okano
- Date:
- 2014-08-01
- Revision:
- 4:507e37f8008d
- Parent:
- 3:dbe7902d4335
- Child:
- 5:b93b28e126fe
File content as of revision 4:507e37f8008d:
#include "mbed.h" #include "PCA9955A_registers.h" I2C i2c( p28, p27 ); // SDA, SCL #define SLAVE_ADDR 0x02 void register_write( char addr, char data ); int main() { // initialization register_write( MODE1, 0x00 ); register_write( MODE2, 0x25 ); register_write( LEDOUT0, 0xAA ); register_write( LEDOUT1, 0xAA ); register_write( LEDOUT2, 0xAA ); register_write( LEDOUT3, 0xAA ); register_write( IREFALL, 0x10 ); // operation loop while ( 1 ) { for ( int i = 0; i < 256; i++ ) { register_write( PWM0, i ); wait( 0.01 ); } for ( int i = 255; i >= 0; i-- ) { register_write( PWM0, i ); wait( 0.01 ); } } } void register_write( char addr, char data ) { char d[ 2 ]; d[ 0 ] = addr; d[ 1 ] = data; i2c.write( SLAVE_ADDR, d, 2 ); }