You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
131 lines
3.5 KiB
131 lines
3.5 KiB
#include "i2c.h"
|
|
#include "usart.h"
|
|
|
|
void i2cInit( i2c_t *i2cHardware,
|
|
i2cCh_t channelNo,
|
|
i2cMode_t mode,
|
|
uint16_t mainAddress,
|
|
uint16_t secondAddress,
|
|
i2cAddressCount_t addressCount,
|
|
i2cAddressSize_t addressSize,
|
|
i2cSpeed_t speed,
|
|
i2cOpperationMode_t opperationMode,
|
|
i2cClockStretching_t stretching,
|
|
i2cWakeUpTypes_t wakeOn)
|
|
{
|
|
i2cHardware->channelNo = channelNo;
|
|
i2cHardware->mode = mode;
|
|
i2cHardware->mainAddress = mainAddress;
|
|
i2cHardware->secondAddress = secondAddress;
|
|
i2cHardware->addressCount = addressCount;
|
|
i2cHardware->addressSize = addressSize;
|
|
i2cHardware->speed = speed;
|
|
i2cHardware->opperationMode = opperationMode;
|
|
i2cHardware->stretching = stretching;
|
|
i2cHardware->wakeOn = wakeOn;
|
|
i2cHardware->hardwareState = i2cHwIdle;
|
|
i2cHardware->periferalState = i2cPerifNotInitialized;
|
|
|
|
i2cEnableHardware(i2cHardware);
|
|
i2cDisablePeriferal(i2cHardware);
|
|
i2cConfigureFilters(i2cHardware);
|
|
i2cSetClockStretch(i2cHardware, stretching);
|
|
i2cSetSpeed(i2cHardware, speed);
|
|
i2cSetMode(i2cHardware, opperationMode);
|
|
i2cSetAddressLenght(i2cHardware, addressSize);
|
|
i2cSetAddress(i2cHardware, mainAddress, secondAddress);
|
|
i2cEnablePeriferal(i2cHardware);
|
|
|
|
while(i2cHardware->periferalState != i2cPerifReady)
|
|
{
|
|
i2cIsPeriferalReady(i2cHardware);
|
|
}
|
|
|
|
i2cHardware->periferalState = i2cPerifInitialized;
|
|
}
|
|
|
|
|
|
void i2cDeInit(i2c_t *i2cHardware)
|
|
{
|
|
|
|
}
|
|
|
|
|
|
void i2cRead(i2c_t *i2cHardware, uint16_t *slaveAddress, uint8_t *registerAddress, uint8_t *data, uint8_t *dataLenght)
|
|
{
|
|
|
|
//
|
|
// Start
|
|
// Send Address
|
|
// Wait For ACK
|
|
//
|
|
uint8_t nbytes = 0;
|
|
|
|
i2cHardware->periferalState = i2cPerifTransmitting;
|
|
|
|
i2cSetTransferCounter(i2cHardware,1);
|
|
i2cSendSlaveAddressWrite(i2cHardware, slaveAddress);
|
|
i2cSendRegisterAddress(i2cHardware,registerAddress);
|
|
|
|
while(i2cHardware->periferalState != i2cPerifTransferComplete)
|
|
{
|
|
i2cIsTransferComplete(i2cHardware);
|
|
}
|
|
|
|
i2cHardware->periferalState = i2cPerifRecieving;
|
|
i2cSendSlaveAddressRead(i2cHardware, slaveAddress);
|
|
|
|
|
|
while(i2cHardware->periferalState != i2cPerifTransferComplete)
|
|
{
|
|
i2cIsTransferComplete(i2cHardware);
|
|
}
|
|
|
|
i2cGenerateNack(i2cHardware);
|
|
i2cGenerateStop(i2cHardware);
|
|
|
|
i2cReadInputRegister(i2cHardware, data);
|
|
|
|
print_Usart(usart2, "\n\rI2C Read completed\n\r");
|
|
|
|
while(i2cHardware->periferalState != i2cPerifReady)
|
|
{
|
|
i2cIsPeriferalReady(i2cHardware);
|
|
}
|
|
i2cHardware->periferalState = i2cPerifReady;
|
|
i2cHardware->hardwareState = i2cHwIdle;
|
|
}
|
|
|
|
void i2cWrite(i2c_t *i2cHardware, uint16_t *slaveAddress, uint8_t *registerAddress, uint8_t *data, uint8_t *dataLenght)
|
|
{
|
|
i2cSetTransferCounter(i2cHardware,2);
|
|
i2cSendSlaveAddressWrite(i2cHardware, slaveAddress);
|
|
i2cSendRegisterAddress(i2cHardware,registerAddress);
|
|
while((i2cHardware->hardwareState =! i2cHwOutputBufferEmpty))
|
|
{
|
|
i2cIsOutputBufferEmpty(i2cHardware);
|
|
}
|
|
i2cSendData(i2cHardware,data);
|
|
|
|
i2cGenerateStop(i2cHardware);
|
|
print_Usart(usart2, "\n\rI2C Transfer completed\n\r");
|
|
}
|
|
|
|
void i2cThrowError(i2c_t *i2cHardware, int16_t error)
|
|
{
|
|
print_Usart(usart2, "\n\r");
|
|
print_Usart(usart2, "\n\r");
|
|
print_Usart(usart2, "I2C Error Detected : ");
|
|
|
|
if (i2cHardware->periferalState == i2cPerifTransmitting)
|
|
print_Usart(usart2, "i2cPerifTransmitting");
|
|
if (i2cHardware->periferalState == i2cPerifRecieving)
|
|
print_Usart(usart2, "i2cPerifRecieving");
|
|
|
|
print_Usart(usart2, "\n\r");
|
|
print_Usart(usart2, "I2C Error No: ");
|
|
usartSendChar(usart2, error + 0x30);
|
|
print_Usart(usart2, "\n\r");
|
|
print_Usart(usart2, "\n\r");
|
|
}
|