main.cpp

00001 #include "mbed.h"
00002 #include "MCP23017.h"
00003 
00004 DigitalOut myled1(LED1);
00005 DigitalOut myled2(LED2);
00006 
00007 Serial pc(USBTX, USBRX);
00008 I2C i2c(p9, p10);
00009 
00010 MCP23017 mcp23017 = MCP23017(i2c, 0x40);
00011 
00012 int main() {
00013     
00014     pc.printf("Hello World\n");
00015     
00016     // I2C init
00017     i2c.frequency(100000);
00018     
00019     // Port A is databus - Output
00020     mcp23017.direction(PORT_A, PORT_DIR_OUT);
00021     // Port B is controlbus - Output       
00022     mcp23017.direction(PORT_B, PORT_DIR_OUT); 
00023     
00024     myled2 = 1;
00025     pc.printf("MPC Init done\n");           
00026     
00027     while(1) {
00028         myled1 = 1;
00029         mcp23017.write(PORT_A, 0xFF);
00030         mcp23017.write(PORT_B, 0xFF);        
00031         wait(0.2);
00032            
00033         myled1 = 0;
00034         mcp23017.write(PORT_A, 0x00);
00035         mcp23017.write(PORT_B, 0x00);        
00036         wait(0.2);
00037         pc.printf("*");
00038     }
00039 }