/**
* Initialize the I2C
*/
void InitI2C()
{
//I2C Pin Config
mPORTBSetPinsDigitalOut(I2C_SCL_Pin | I2C_SDA_Pin);
I2CEnable(I2C1, FALSE);
//Soft reset I2C Bus by pulsing the clock line 10 times
mPORTBSetBits(I2C_SCL_Pin | I2C_SDA_Pin);
unsigned int i;
unsigned int wait;
for (i = 0; i < 20; i++) {
for (wait = 0; wait < 20; wait++);
mPORTBToggleBits(I2C_SCL_Pin);
}
mPORTBSetBits(I2C_SCL_Pin | I2C_SDA_Pin);
// Configure Various I2C Options
//!!!!! - Slew rate control off(High speed mode enabled), If enabled, RA0 and RA1 fail to work, see silicon errata (Microchip Hardware Bugs)
I2CConfigure(I2C1, I2C_ENABLE_SLAVE_CLOCK_STRETCHING | I2C_ENABLE_HIGH_SPEED);
// Set the I2C baud rate
int I2C_actualClock = I2CSetFrequency(I2C1, SYS_FREQ, I2C_Clock);
UART_SendString("I2C Clock: ");
UART_SendInt(I2C_actualClock);
UART_SendString(" Hz\n\r");
// Enable the I2C bus
I2CEnable(I2C1, TRUE);
while (!I2CTransmitterIsReady(I2C1));
// configure the interrupt priority for the I2C peripheral
//INTSetVectorPriority(INT_I2C_1_VECTOR,INT_PRIORITY_LEVEL_3);
//INTClearFlag(INT_I2C1);
//INTEnable(INT_I2C1,INT_ENABLED);
}
// === Thread 4 ======================================================
// just blinks
static PT_THREAD (protothread4(struct pt *pt))
{
PT_BEGIN(pt);
while(1) {
mPORTBToggleBits(BIT_0);
// put a 10 microsec pulse on the debug pin with amplitude 1
PT_DEBUG_VALUE(1, 10) ;
PT_YIELD_TIME_msec(wait_t2) ;
// never exit while
} // END WHILE(1)
PT_END(pt);
} // thread 4
void TOGGLE_LED(short lednumber)
{
switch(lednumber)
{
case 0:
{}
case 1:
{}
case 2:
{
mPORTDToggleBits(1 << lednumber);
break;
}
case 3:
{}
case 4:
{
mPORTBToggleBits(1 << (lednumber+1));
}
default: {
break;
}
}
}
void toggleLed2()
{
mPORTBToggleBits(BIT_9);
}
void toggleLed1()
{
mPORTBToggleBits(BIT_8);
}
