static int do_i2c_pcf8591(int argc, const char* const* argv)
{
if(argc == 1 || strcmp(argv[1], "read") == 0){
if((IS_ALREADY_INITED || PCF8591_Init()) && PCF8591_Read()){
if(argc != 1){
console_printf( "A0-A3: " );
}
console_printf( "%d %d %d %d\n", LAST_PCF8591_A[0], LAST_PCF8591_A[1], LAST_PCF8591_A[2], LAST_PCF8591_A[3]);
}else{
console_printf( "Failed to read value\n" );
}
} else
if(strcmp(argv[1], "write") == 0){
if( argc < 3 ){
console_printf( "Value not specified\n" );
return 0;
}
console_printf(PCF8591_Write(atoi(argv[2]))?"Ok":"Failed to write value");
} else
if(strcmp(argv[1], "init") == 0){
console_printf( PCF8591_Init() ? "Ok\n":"Failed\n" );
}
return 0;
}
bool PCF8591_Init()
{
//TODO: configure for differential input
if(PCF8591_Read()){
IS_ALREADY_INITED = true;
return true;
}
return false;
}
void main()
{
uint8 dat;
uint16 temp;
uint8 LcdBuff[6];
LCD1602_Init();
while(1)
{
dat=PCF8591_Read(0);
temp=dat*125/64;
LcdBuff[0]=temp/100+'0';
LcdBuff[1]='.';
LcdBuff[2]=temp/10%10+'0';
LcdBuff[3]=temp%10+'0';
LcdBuff[4]='V';
LcdBuff[5]='\0';
LCD1602_Show(0,0,LcdBuff,5);
}
}
