void portableCommonNackI2C(I2cBusConnection* i2cBusConnection) {
I2cBus* i2cBus = i2cBusConnection->i2cBus;
if (i2cBus == NULL) {
NotAckI2C1();
}
else {
I2C_MODULE i2cModule = getI2C_MODULE(i2cBus->port);
I2CAcknowledgeByte(i2cModule, false);
}
}
unsigned int portableMasterWriteI2C(I2cBusConnection* i2cBusConnection, unsigned char data) {
I2cBus* i2cBus = i2cBusConnection->i2cBus;
if (i2cBus == NULL) {
return MasterWriteI2C1(data);
}
else {
I2C_MODULE i2cModule = getI2C_MODULE(i2cBus->port);
return I2CSendByte(i2cModule, data);
}
}
void portableCommonStopI2C(I2cBusConnection* i2cBusConnection) {
I2cBus* i2cBus = i2cBusConnection->i2cBus;
if (i2cBus == NULL) {
StopI2C1();
}
else {
I2C_MODULE i2cModule = getI2C_MODULE(i2cBus->port);
I2CStop(i2cModule);
}
}
void i2cMasterInitialize(I2cBus* i2cBus) {
OutputStream* outputStream = getDebugOutputStreamLogger();
appendString(outputStream, "Initializing I2C ...");
// Avoid more than one initialization
if (i2cBus->initialized) {
printI2cBus(outputStream, i2cBus);
appendCRLF(outputStream);
appendString(getDebugOutputStreamLogger(), "\n!!! ALREADY INITIALIZED !!!\n");
return;
}
i2cBus->initialized = true;
#define I2C_BRG 0xC6 // 100khz for PIC32
// Configure I2C for 7 bit address mode
#define I2C_CON I2C_ON
i2cBus->config = I2C_CON;
if (i2cBus == NULL) {
OpenI2C1(
// Configure I2C for 7 bit address mode.
I2C_CON,
// 100khz for PIC32.
I2C_BRG);
}
else {
I2C_MODULE i2cModule = getI2C_MODULE(i2cBus->port);
I2CConfigure(i2cModule, I2C_ON);
I2CSetFrequency(i2cModule, GetPeripheralClock(), 100000L);
}
WaitI2C(i2cBus);
// Indicates that it's ok !
appendString(outputStream, "OK\n");
printI2cBus(outputStream, i2cBus);
appendCRLF(outputStream);
}
