/**
* @brief Writes more than one byte to the EEPROM with a single WRITE cycle.
* @note The number of byte can't exceed the EEPROM page size.
* @param sEEInitStruct : Pointer to sEE Device structure
* @param pBuffer : pointer to the buffer containing the data to be written to
* the EEPROM.
* @param WriteAddr : EEPROM's internal address to write to.
* @param NumByteToWrite : pointer to the variable holding number of bytes to
* written to the EEPROM.
*
* @note The variable pointed by NumByteToWrite is reset to 0 when all the
* data are read from the EEPROM. Application should monitor this
* variable in order know when the transfer is complete.
*
* @note When number of data to be written is higher than 1, this function just
* configure the communication and enable the DMA channel to transfer data.
* Meanwhile, the user application may perform other tasks.
* When number of data to be written is 1, then the DMA is not used.
*
* @retval None
*/
static uint32_t sEE_WritePage(sEE_InitTypeDef * sEEInitStruct,
uint8_t * pBuffer, uint16_t WriteAddr,
uint32_t NumByteToWrite)
{
sEEInitStruct->sEE_CPALStructure->wCPAL_Options = 0;
/* Enable 16Bit memory register option on CPAL */
if (sEEInitStruct->sEEMemoryAddrMode & sEE_OPT_16BIT_REG) {
sEEInitStruct->sEE_CPALStructure->wCPAL_Options =
CPAL_OPT_16BIT_REG;
}
sEEInitStruct->sEE_CPALStructure->pCPAL_TransferTx =
sEE_TXTransfer[sEEInitStruct->sEE_CPALStructure->CPAL_Dev];
/* Configure transfer parameters */
sEEInitStruct->sEE_CPALStructure->pCPAL_TransferTx->wNumData =
(uint32_t) (NumByteToWrite);
sEEInitStruct->sEE_CPALStructure->pCPAL_TransferTx->pbBuffer = pBuffer;
sEEInitStruct->sEE_CPALStructure->pCPAL_TransferTx->wAddr1 =
(uint32_t) ((uint8_t) sEEInitStruct->sEEAddress);
sEEInitStruct->sEE_CPALStructure->pCPAL_TransferTx->wAddr2 =
(uint32_t) ((uint16_t) WriteAddr);
/* Write Operation */
return CPAL_I2C_Write(sEEInitStruct->sEE_CPALStructure);
}
void I2C_Lib_MasterRW(I2C_Lib_Op_Type op,uint8_t slave_addr,uint16_t length,uint8_t* data)
{
static CPAL_TransferTypeDef CPAL_Transfer; //Must be static because I2C transfer is async
I2C_Lib_WaitForRWDone();
CPAL_Transfer.wNumData = length;
CPAL_Transfer.pbBuffer = data;
CPAL_Transfer.wAddr1 = (uint32_t)slave_addr<<1; //device address is high 7-bit
// CPAL_Transfer.wAddr2 = (uint32_t)reg_addr;
I2C_HOST_DEV.wCPAL_Options = CPAL_OPT_NO_MEM_ADDR;
if(op == I2C_OP_Write){
I2C_HOST_DEV.pCPAL_TransferTx = &CPAL_Transfer;
if(CPAL_I2C_Write(&I2C_HOST_DEV) != CPAL_PASS){
ERR_MSG("CPAL_I2C_Write Failed");
}
}
else if(op == I2C_OP_Read){
I2C_HOST_DEV.pCPAL_TransferRx = &CPAL_Transfer;
if(CPAL_I2C_Read(&I2C_HOST_DEV) != CPAL_PASS){
ERR_MSG("CPAL_I2C_Read Failed");
}
}
}
int stm32_i2c_write(unsigned char slave_addr, unsigned char reg_addr, unsigned char length, unsigned char *data)
{
/* Disable all options */
MPU9150_DevStructure.wCPAL_Options = 0;
/* point to CPAL_TransferTypeDef structure */
MPU9150_DevStructure.pCPAL_TransferTx = &MPU9150_TXTransfer;
/* Configure transfer parameters */
MPU9150_DevStructure.pCPAL_TransferTx->wNumData = (uint32_t)length;
MPU9150_DevStructure.pCPAL_TransferTx->pbBuffer = data ;
MPU9150_DevStructure.pCPAL_TransferTx->wAddr1 = (uint32_t)slave_addr;
MPU9150_DevStructure.pCPAL_TransferTx->wAddr2 = (uint32_t)reg_addr;
/* Write Operation */
if(CPAL_I2C_Write(&MPU9150_DevStructure) == CPAL_PASS)
{
while ((MPU9150_DevStructure.CPAL_State != CPAL_STATE_READY) && (MPU9150_DevStructure.CPAL_State != CPAL_STATE_ERROR) )
{ }
if (MPU9150_DevStructure.CPAL_State == CPAL_STATE_ERROR)
{
return -1;
}
}
else
{
return -1;
}
return 0;
}
uint8_t mBusWriteBurstNoAdd(uint8_t slaveAddr, uint8_t length, uint8_t *data, uint8_t i2cNum)
{
mBusTypeDef* mBusCurrent = getmBusPtr(i2cNum);
CPAL_InitTypeDef* mBusStruct = mBusCurrent->CPAL_InitStruct;
uint8_t i;
for(i=0;i<length;i++)
{
mBusCurrent->bufferBurstWr[i] = data[i];
}
mBusStruct->wCPAL_Options |= CPAL_OPT_NO_MEM_ADDR;
mBusStruct->pCPAL_TransferTx = &(mBusCurrent->mBusTx);
mBusStruct->pCPAL_TransferTx->wNumData = length;
mBusStruct->pCPAL_TransferTx->pbBuffer = mBusCurrent->bufferBurstWr;
mBusStruct->pCPAL_TransferTx->wAddr1 = (uint32_t)slaveAddr;
if(CPAL_I2C_Write(mBusStruct) == CPAL_PASS)
{
while((mBusStruct->CPAL_State != CPAL_STATE_READY) && (mBusStruct->CPAL_State != CPAL_STATE_ERROR)){}
if (mBusStruct->CPAL_State == CPAL_STATE_ERROR)
{
mBusStruct->CPAL_State = CPAL_STATE_READY;
mBusStruct->wCPAL_Options &= ~CPAL_OPT_NO_MEM_ADDR;
return ERROR;
}
mBusStruct->wCPAL_Options &= ~CPAL_OPT_NO_MEM_ADDR;
return SUCCESS;
}
else
{
mBusStruct->wCPAL_Options &= ~CPAL_OPT_NO_MEM_ADDR;
return ERROR;
}
}
uint8_t mBusWrite(uint8_t slaveAddr, uint8_t regAddr, uint8_t data, uint8_t i2cNum)
{
mBusTypeDef* mBusCurrent = getmBusPtr(i2cNum);
CPAL_InitTypeDef* mBusStruct = mBusCurrent->CPAL_InitStruct;
mBusCurrent->bufferWr[0] = data;
mBusStruct->pCPAL_TransferTx = &(mBusCurrent->mBusTx);
mBusStruct->pCPAL_TransferTx->wNumData = 1;
mBusStruct->pCPAL_TransferTx->pbBuffer = mBusCurrent->bufferWr;
mBusStruct->pCPAL_TransferTx->wAddr1 = (uint32_t)slaveAddr;
mBusStruct->pCPAL_TransferTx->wAddr2 = (uint32_t)regAddr;
if (CPAL_I2C_Write(mBusStruct) == CPAL_PASS)
{
while((mBusStruct->CPAL_State != CPAL_STATE_READY) && (mBusStruct->CPAL_State != CPAL_STATE_ERROR)){}
if (mBusStruct->CPAL_State == CPAL_STATE_ERROR)
{
mBusStruct->CPAL_State = CPAL_STATE_READY;
return ERROR;
}
return SUCCESS;
}
else
{
return ERROR;
}
}
uint8_t mBusWriteBurstNoAdd(uint8_t slaveAddr, uint8_t length, uint8_t *data)
{
uint8_t i;
for(i=0;i<length;i++)
{
bufferBurstWr[i] = data[i];
}
mBusStruct.wCPAL_Options |= CPAL_OPT_NO_MEM_ADDR;
mBusStruct.pCPAL_TransferTx = &mBusTx;
mBusStruct.pCPAL_TransferTx->wNumData = length;
mBusStruct.pCPAL_TransferTx->pbBuffer = bufferBurstWr ;
mBusStruct.pCPAL_TransferTx->wAddr1 = (uint32_t)slaveAddr;
if(CPAL_I2C_Write(&mBusStruct) == CPAL_PASS)
{
while((mBusStruct.CPAL_State != CPAL_STATE_READY) && (mBusStruct.CPAL_State != CPAL_STATE_ERROR)){}
if (mBusStruct.CPAL_State == CPAL_STATE_ERROR)
{
mBusStruct.CPAL_State = CPAL_STATE_READY;
mBusStruct.wCPAL_Options &= ~CPAL_OPT_NO_MEM_ADDR;
return ERROR;
}
mBusStruct.wCPAL_Options &= ~CPAL_OPT_NO_MEM_ADDR;
return SUCCESS;
}
else
{
mBusStruct.wCPAL_Options &= ~CPAL_OPT_NO_MEM_ADDR;
return ERROR;
}
}
uint8_t mBusWriteNoAdd(uint8_t slaveAddr, uint8_t data)
{
bufferWr[0] = data;
mBusStruct.wCPAL_Options |= CPAL_OPT_NO_MEM_ADDR;
mBusStruct.pCPAL_TransferTx = &mBusTx;
mBusStruct.pCPAL_TransferTx->wNumData = 1;
mBusStruct.pCPAL_TransferTx->pbBuffer = bufferWr;
mBusStruct.pCPAL_TransferTx->wAddr1 = (uint32_t)slaveAddr;
if(CPAL_I2C_Write(&mBusStruct) == CPAL_PASS)
{
while((mBusStruct.CPAL_State != CPAL_STATE_READY) && (mBusStruct.CPAL_State != CPAL_STATE_ERROR)){}
if (mBusStruct.CPAL_State == CPAL_STATE_ERROR)
{
mBusStruct.CPAL_State = CPAL_STATE_READY;
mBusStruct.wCPAL_Options &= ~CPAL_OPT_NO_MEM_ADDR;
return ERROR;
}
mBusStruct.wCPAL_Options &= ~CPAL_OPT_NO_MEM_ADDR;
return SUCCESS;
}
else
{
mBusStruct.wCPAL_Options &= ~CPAL_OPT_NO_MEM_ADDR;
return ERROR;
}
}
/**
* @brief Writes a value in a register of the device through I2C.
* @param DeviceAddr: The address of the IOExpander, could be : IOE_1_ADDR.
* @param RegisterAddr: The target register address
* @param RegisterValue: The target register value to be written
* @retval IOE_OK: if all operations are OK. Other value if error.
*/
uint8_t I2C_WriteDeviceRegister(uint8_t DeviceAddr, uint8_t RegisterAddr, uint8_t RegisterValue)
{
uint32_t read_verif = 0;
IOE_Buffer[0] = RegisterValue;
/* Disable all options */
IOE_DevStructure.wCPAL_Options = 0;
/* point to CPAL_TransferTypeDef structure */
IOE_DevStructure.pCPAL_TransferTx = &IOE_TXTransfer;
/* Configure transfer parameters */
IOE_DevStructure.pCPAL_TransferTx->wNumData = 1;
IOE_DevStructure.pCPAL_TransferTx->pbBuffer = IOE_Buffer ;
IOE_DevStructure.pCPAL_TransferTx->wAddr1 = (uint32_t)DeviceAddr;
IOE_DevStructure.pCPAL_TransferTx->wAddr2 = (uint32_t)RegisterAddr;
/* Write Operation */
if (CPAL_I2C_Write(&IOE_DevStructure)== CPAL_PASS)
{
while ((IOE_DevStructure.CPAL_State != CPAL_STATE_READY) && (IOE_DevStructure.CPAL_State != CPAL_STATE_ERROR) )
{ }
}
#ifdef VERIFY_WRITTENDATA
/* Verify (if needed) that the loaded data is correct */
/* Read the just written register*/
read_verif = I2C_ReadDeviceRegister(DeviceAddr, RegisterAddr);
/* Load the register and verify its value */
if (read_verif != RegisterValue)
{
/* Control data wrongly transferred */
read_verif = IOE_FAILURE;
}
else
{
/* Control data correctly transferred */
read_verif = 0;
}
#endif
/* Return the verifying value: 0 (Passed) or 1 (Failed) */
return read_verif;
}
// Write a byte stream to 7-bit slave address 'slave_addr' beginning at 16-bit
// register address 'reg_addr'. Non-blocking unless previous transaction in
// ongoing. Address is high byte first first, data is native.
uint8_t mBusMasterWriteBurst(uint8_t slaveAddr, uint16_t regAddr, uint8_t length, uint8_t *data, uint8_t i2cNum)
{
mBusTypeDef* mBus = getmBusPtr(i2cNum);
CPAL_InitTypeDef* mBusStruct = mBus->CPAL_InitStruct;
// Block If Device is Busy (a previous transaction is ongoing)
// while (((mBusStruct->CPAL_State & CPAL_STATE_BUSY) != 0)
// || (mBusStruct->CPAL_State == CPAL_STATE_READY_TX)
// || (mBusStruct->CPAL_State == CPAL_STATE_READY_RX)) {};
// while(mBus->CPAL_InitStruct->CPAL_State != CPAL_STATE_READY
// && mBus->CPAL_InitStruct->CPAL_State != CPAL_STATE_DISABLED
// && mBus->CPAL_InitStruct->CPAL_State != CPAL_STATE_ERROR) {};
// DelayMicroseconds(1);
// if(mBus->CPAL_InitStruct->CPAL_State == CPAL_STATE_DISABLED
// || mBus->CPAL_InitStruct->CPAL_State == CPAL_STATE_ERROR) {
// mRedON;
// mBus->CPAL_InitStruct->CPAL_State = CPAL_STATE_READY;
// mBusInit(i2cNum);
// }
memcpy(mBus->bufferBurstWr, data, length);
mBusStruct->pCPAL_TransferTx = &(mBus->mBusTx);
mBusStruct->pCPAL_TransferTx->wNumData = length;
mBusStruct->pCPAL_TransferTx->pbBuffer = mBus->bufferBurstWr;
mBusStruct->pCPAL_TransferTx->wAddr1 = (uint32_t)slaveAddr;
mBusStruct->pCPAL_TransferTx->wAddr2 = (uint32_t)regAddr;
mBusStruct->wCPAL_Options |= CPAL_OPT_16BIT_REG;
if(CPAL_I2C_Write(mBusStruct) == CPAL_PASS) {
return SUCCESS;
}
else {
//WarnReport(ERROR_MBUS_MASTER_WRITE_BURST, "CPAL_I2C_Write failed");
WarnReport(ERROR_MBUS_MASTER_WRITE_BURST, "CPAL_I2C_Write fail, Mode=%u,State=%u,Error=%u",
mBus->CPAL_InitStruct->CPAL_Mode,
mBus->CPAL_InitStruct->CPAL_State,
mBus->CPAL_InitStruct->wCPAL_DevError);
return ERROR;
}
}
uint8_t mBusWriteBurstNB(uint8_t slaveAddr, uint8_t regAddr, uint8_t length, uint8_t *data)
{
uint8_t i;
for(i=0;i<length;i++)
{
bufferBurstWr[i] = data[i];
}
mBusStruct.pCPAL_TransferTx = &mBusTx;
mBusStruct.pCPAL_TransferTx->wNumData = length;
mBusStruct.pCPAL_TransferTx->pbBuffer = bufferBurstWr ;
mBusStruct.pCPAL_TransferTx->wAddr1 = (uint32_t)slaveAddr;
mBusStruct.pCPAL_TransferTx->wAddr2 = (uint32_t)regAddr;
if(CPAL_I2C_Write(&mBusStruct) == CPAL_PASS)
{
return SUCCESS;
}
else
{
return ERROR;
}
}
uint8_t mBusWriteBurstNB(uint8_t slaveAddr, uint8_t regAddr, uint8_t length, uint8_t *data, uint8_t i2cNum)
{
mBusTypeDef* mBusCurrent = getmBusPtr(i2cNum);
CPAL_InitTypeDef* mBusStruct = mBusCurrent->CPAL_InitStruct;
uint8_t i;
for(i=0;i<length;i++)
{
mBusCurrent->bufferBurstWr[i] = data[i];
}
mBusStruct->pCPAL_TransferTx = &(mBusCurrent->mBusTx);
mBusStruct->pCPAL_TransferTx->wNumData = length;
mBusStruct->pCPAL_TransferTx->pbBuffer = mBusCurrent->bufferBurstWr;
mBusStruct->pCPAL_TransferTx->wAddr1 = (uint32_t)slaveAddr;
mBusStruct->pCPAL_TransferTx->wAddr2 = (uint32_t)regAddr;
if(CPAL_I2C_Write(mBusStruct) == CPAL_PASS)
{
return SUCCESS;
}
else
{
return ERROR;
}
}
uint8_t mBusWrite(uint8_t slaveAddr, uint8_t regAddr, uint8_t data)
{
bufferWr[0] = data;
mBusStruct.pCPAL_TransferTx = &mBusTx;
mBusStruct.pCPAL_TransferTx->wNumData = 1;
mBusStruct.pCPAL_TransferTx->pbBuffer = bufferWr;
mBusStruct.pCPAL_TransferTx->wAddr1 = (uint32_t)slaveAddr;
mBusStruct.pCPAL_TransferTx->wAddr2 = (uint32_t)regAddr;
if(CPAL_I2C_Write(&mBusStruct) == CPAL_PASS)
{
while((mBusStruct.CPAL_State != CPAL_STATE_READY) && (mBusStruct.CPAL_State != CPAL_STATE_ERROR)){}
if (mBusStruct.CPAL_State == CPAL_STATE_ERROR)
{
mBusStruct.CPAL_State = CPAL_STATE_READY;
return ERROR;
}
return SUCCESS;
}
else
{
return ERROR;
}
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f0xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f0xx.c file
*/
/* Configure Clocks */
RCC_Config();
/* Initialize LEDs, Key Button and LCD available on
STM320518-EVAL board *****************************************************/
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_LEDInit(LED3);
STM_EVAL_LEDInit(LED4);
/* Initialize the LCD */
STM320518_LCD_Init();
/* Display message on LCD ***********************************************/
/* Clear the LCD */
LCD_Clear(White);
/* Set the LCD Back Color */
LCD_SetBackColor(Blue);
/* Set the LCD Text Color */
LCD_SetTextColor(Yellow);
LCD_DisplayStringLine(Line0, MESSAGE1);
LCD_DisplayStringLine(Line1, MESSAGE2);
/* Set the LCD Back Color */
LCD_SetBackColor(White);
/* Set the LCD Text Color */
LCD_SetTextColor(Blue);
/* Configure the Push buttons in Polling mode */
STM_EVAL_PBInit(BUTTON_KEY, Mode_GPIO);
/* if STM32 device is set as Master */
#ifdef I2C_MASTER
/* Configure and enable the systick timer to generate an interrupt each 1 ms */
SysTick_Config((SystemCoreClock / 1000));
/* Deinitialize I2Cx Device */
CPAL_I2C_DeInit(&MASTERSTRUCTURE);
/* Initialize CPAL I2C structure parameters values */
CPAL_I2C_StructInit(&MASTERSTRUCTURE);
#ifdef CPAL_I2C_DMA_PROGMODEL
MASTERSTRUCTURE.wCPAL_Options = CPAL_OPT_NO_MEM_ADDR | CPAL_OPT_DMATX_TCIT;
MASTERSTRUCTURE.CPAL_ProgModel = CPAL_PROGMODEL_DMA;
#elif defined (CPAL_I2C_IT_PROGMODEL)
MASTERSTRUCTURE.wCPAL_Options = CPAL_OPT_NO_MEM_ADDR;
MASTERSTRUCTURE.CPAL_ProgModel = CPAL_PROGMODEL_INTERRUPT;
#else
#error "Please select one of the programming model (in main.h)"
#endif
/* Set I2C Speed */
MASTERSTRUCTURE.pCPAL_I2C_Struct->I2C_Timing = MASTER_I2C_TIMING;
/* Select Master Mode */
MASTERSTRUCTURE.CPAL_Mode = CPAL_MODE_MASTER;
/* Initialize I2Cx Device*/
CPAL_I2C_Init(&MASTERSTRUCTURE);
/* Infinite loop */
while(1)
{
/* Initialize Transfer parameters */
MASTERSTRUCTURE.pCPAL_TransferTx = &sTxStructure;
sTxStructure.wNumData = BufferSize;
sTxStructure.pbBuffer = (uint8_t*)BufferTX;
sTxStructure.wAddr1 = OWNADDRESS;
/* Update LCD Display */
LCD_SetBackColor(White);
LCD_SetTextColor(Blue);
LCD_DisplayStringLine(Line8, MEASSAGE_EMPTY);
LCD_DisplayStringLine(Line5, MESSAGE4);
LCD_DisplayStringLine(Line6, MESSAGE5);
/* wait until Key button is pushed */
while(STM_EVAL_PBGetState(BUTTON_KEY));
/* Update LCD Display */
LCD_DisplayStringLine(Line5, MEASSAGE_EMPTY);
LCD_DisplayStringLine(Line6, MEASSAGE_EMPTY);
/* Write operation */
CPAL_I2C_Write(&MASTERSTRUCTURE);
/* Wait until communication finishes */
while ((MASTERSTRUCTURE.CPAL_State != CPAL_STATE_READY) && (MASTERSTRUCTURE.CPAL_State != CPAL_STATE_ERROR));
if (TransferStatus == PASSED)
{
/* Update LCD Display */
LCD_SetBackColor(Red);
LCD_SetTextColor(White);
LCD_DisplayStringLine(Line8, MESSAGE6);
}
else
{
TransferStatus = PASSED;
}
Delay(1000);
}
#endif /* I2C_MASTER */
/* if STM32 device is set as Slave */
#ifdef I2C_SLAVE
/* GPIOA Periph clock enable */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
/* Output System Clock on MCO pin (PA.08) */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOA, &GPIO_InitStructure);
RCC_MCOConfig(RCC_MCOSource_SYSCLK);
/* Deinitialize I2Cx Device */
CPAL_I2C_DeInit(&SLAVESTRUCTURE);
/* Initialize CPAL I2C structure parameters values */
CPAL_I2C_StructInit(&SLAVESTRUCTURE);
#ifdef CPAL_I2C_DMA_PROGMODEL
SLAVESTRUCTURE.wCPAL_Options = CPAL_OPT_I2C_NACK_ADD | CPAL_OPT_I2C_WAKEUP_STOP | CPAL_OPT_DMARX_TCIT;
SLAVESTRUCTURE.CPAL_ProgModel = CPAL_PROGMODEL_DMA;
#elif defined (CPAL_I2C_IT_PROGMODEL)
SLAVESTRUCTURE.wCPAL_Options = CPAL_OPT_I2C_NACK_ADD | CPAL_OPT_I2C_WAKEUP_STOP;
SLAVESTRUCTURE.CPAL_ProgModel = CPAL_PROGMODEL_INTERRUPT;
#else
#error "Please select one of the programming model (in main.h)"
#endif
/* Configure Own address 1 */
SLAVESTRUCTURE.pCPAL_I2C_Struct->I2C_OwnAddress1 = OWNADDRESS;
/* Set I2C Speed */
SLAVESTRUCTURE.pCPAL_I2C_Struct->I2C_Timing = SLAVE_I2C_TIMING;
/* Select Slave Mode */
SLAVESTRUCTURE.CPAL_Mode = CPAL_MODE_SLAVE;
/* Initialize I2Cx Device*/
CPAL_I2C_Init(&SLAVESTRUCTURE);
/* Infinite loop */
while(1)
{
/* Reset BufferRX value */
Reset_bBuffer(BufferRX, (uint16_t)BufferSize);
/* Initialize Transfer parameters */
SLAVESTRUCTURE.pCPAL_TransferRx = &sRxStructure;
sRxStructure.wNumData = BufferSize;
sRxStructure.pbBuffer = (uint8_t*)BufferRX;
/* Update LCD Display */
LCD_SetBackColor(White);
LCD_SetTextColor(Blue);
LCD_DisplayStringLine(Line8, MEASSAGE_EMPTY);
LCD_DisplayStringLine(Line9, MEASSAGE_EMPTY);
LCD_DisplayStringLine(Line5, MESSAGE7);
Delay(1000);
/* Update LCD Display */
LCD_DisplayStringLine(Line5, MEASSAGE_EMPTY);
LCD_DisplayStringLine(Line6, MESSAGE8);
/* Read operation */
CPAL_I2C_Read(&SLAVESTRUCTURE);
/* Enter Stop Mode and wait for interrupt to wake up */
PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
/* Wait until communication finishes */
while ((SLAVESTRUCTURE.CPAL_State != CPAL_STATE_READY) && (SLAVESTRUCTURE.CPAL_State != CPAL_STATE_ERROR));
/* Configure SystemClock*/
RestoreConfiguration();
/* Configure and enable the systick timer to generate an interrupt each 1 ms */
SysTick_Config((SystemCoreClock / 1000));
/* Update LCD Display */
LCD_DisplayStringLine(Line6, MEASSAGE_EMPTY);
LCD_SetBackColor(Red);
LCD_SetTextColor(White);
LCD_DisplayStringLine(Line8, MESSAGE9);
/* If are received correctly */
if (Compare_bBuffer((uint8_t*)BufferTX, BufferRX, BufferSize) == PASSED )
{
/* Update LCD Display */
LCD_DisplayStringLine(Line9, MESSAGE6);
}
else
{
/* Update LCD Display */
LCD_DisplayStringLine(Line9, MESSAGE10);
}
Delay(1500);
}
#endif /* I2C_SLAVE */
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f0xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f0xx.c file
*/
/* Initialize LEDs and LCD available on STM320518-EVAL board ****************/
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_LEDInit(LED3);
STM_EVAL_LEDInit(LED4);
/* Initialize TIM6 */
TIM6_Config();
/* Initialize the LCD */
STM320518_LCD_Init();
/* Display message on LCD **************************************************/
/* Clear the LCD */
LCD_Clear(White);
/* Set the LCD Back Color */
LCD_SetBackColor(Blue);
/* Set the LCD Text Color */
LCD_SetTextColor(Yellow);
LCD_DisplayStringLine(Line0, MESSAGE1);
LCD_DisplayStringLine(Line1, MESSAGE2);
LCD_DisplayStringLine(Line3, MESSAGE3);
/* Set the LCD Back Color */
LCD_SetBackColor(White);
/* Set the LCD Text Color */
LCD_SetTextColor(Blue);
/* Configure the Push buttons in interrupt mode *****************************/
STM_EVAL_PBInit(BUTTON_KEY, Mode_EXTI);
STM_EVAL_PBInit(BUTTON_TAMPER, Mode_EXTI);
/* Start CPAL communication configuration ***********************************/
/* Initialize local Reception structures */
sRxStructure.wNumData = BufferSize; /* Maximum Number of data to be received */
sRxStructure.pbBuffer = tRxBuffer; /* Common Rx buffer for all received data */
sRxStructure.wAddr1 = 0; /* Not needed */
sRxStructure.wAddr2 = 0; /* Not needed */
/* Initialize local Transmission structures */
sTxStructure.wNumData = BufferSize; /* Maximum Number of data to be received */
sTxStructure.pbBuffer = (uint8_t*)tStateSignal; /* Common Rx buffer for all received data */
sTxStructure.wAddr1 = OWN_ADDRESS; /* The own board address */
sTxStructure.wAddr2 = 0; /* Not needed */
/* Set SYSCLK as I2C clock source */
RCC_I2CCLKConfig(RCC_I2C1CLK_SYSCLK);
/* Configure the device structure */
CPAL_I2C_StructInit(&I2C_DevStructure); /* Set all fields to default values */
I2C_DevStructure.CPAL_Mode = CPAL_MODE_SLAVE;
#ifdef CPAL_I2C_DMA_PROGMODEL
I2C_DevStructure.wCPAL_Options = CPAL_OPT_NO_MEM_ADDR | CPAL_OPT_DMATX_TCIT | CPAL_OPT_DMARX_TCIT;
I2C_DevStructure.CPAL_ProgModel = CPAL_PROGMODEL_DMA;
#elif defined (CPAL_I2C_IT_PROGMODEL)
I2C_DevStructure.wCPAL_Options = CPAL_OPT_NO_MEM_ADDR;
I2C_DevStructure.CPAL_ProgModel = CPAL_PROGMODEL_INTERRUPT;
#else
#error "Please select one of the programming model (in stm32f0xx_i2c_cpal_conf.h)"
#endif
I2C_DevStructure.pCPAL_I2C_Struct->I2C_Timing = I2C_TIMING;
I2C_DevStructure.pCPAL_I2C_Struct->I2C_OwnAddress1 = OWN_ADDRESS;
I2C_DevStructure.pCPAL_TransferRx = &sRxStructure;
I2C_DevStructure.pCPAL_TransferTx = &sTxStructure;
/* Initialize CPAL device with the selected parameters */
CPAL_I2C_Init(&I2C_DevStructure);
/* Infinite loop */
while (1)
{
/* Write operations ------------------------------------------------------*/
/* Check if any action has been triggered by push buttons */
if ((ActionState != ACTION_PENDING) && (ActionState != ACTION_NONE))
{
/* Check if the current CPAL device state allows write operation */
if ((I2C_DevStructure.CPAL_State == CPAL_STATE_READY) || \
(I2C_DevStructure.CPAL_State == CPAL_STATE_BUSY_RX) ||\
(I2C_DevStructure.CPAL_State == CPAL_STATE_DISABLED))
{
/* Initialize local Transmission structures */
sTxStructure.wNumData = BufferSize; /* Maximum Number of data to be received */
sTxStructure.wAddr1 = OWN_ADDRESS; /* The own board address */
sTxStructure.wAddr2 = 0; /* Not needed */
switch (ActionState)
{
case BUTTON_KEY:
sTxStructure.pbBuffer = (uint8_t*)tSignal1;
Divider = 1;
break;
case BUTTON_TAMPER:
sTxStructure.pbBuffer = (uint8_t*)tSignal2;
Divider = 2;
break;
case ACTION_PERIODIC:
sTxStructure.pbBuffer = (uint8_t*)tStateSignal;
break;
default:
sTxStructure.pbBuffer = (uint8_t*)tSignal1;
break;
}
/* Configure the device mode to master */
I2C_DevStructure.CPAL_Mode = CPAL_MODE_MASTER;
/* Force the CPAL state to ready (in case a read operation has been initiated) */
I2C_DevStructure.CPAL_State = CPAL_STATE_READY;
/* Prevent other actions to be performed while the current is not finished */
ActionState = ACTION_PENDING;
TransmitMode = STATE_ON;
/* Configure a Timer to generate periodic interrupt: used to send state signal */
TIM17_Config(PeriodicValue/Divider);
/* Start writing data in master mode */
if (CPAL_I2C_Write(&I2C_DevStructure) == CPAL_PASS)
{
}
}
}
/* Read Operations -------------------------------------------------------*/
if (((I2C_DevStructure.CPAL_State == CPAL_STATE_READY) || \
(I2C_DevStructure.CPAL_State == CPAL_STATE_DISABLED)) && \
(TransmitMode == STATE_OFF))
{
/* Initialize local Reception structures */
sRxStructure.wNumData = BufferSize; /* Maximum Number of data to be received */
sRxStructure.pbBuffer = tRxBuffer; /* Common Rx buffer for all received data */
/* Reconfigure device for slave receiver mode */
I2C_DevStructure.CPAL_Mode = CPAL_MODE_SLAVE;
I2C_DevStructure.CPAL_State = CPAL_STATE_READY;
/* Start waiting for data to be received in slave mode */
if (CPAL_I2C_Read(&I2C_DevStructure) == CPAL_PASS)
{
LCD_DisplayStringLine(Line9, MEASSAGE_EMPTY);
}
}
}
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32xxx_xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32xxx.c file
*/
/* Initialize LEDs, Key Button, LCD and COM port(USART) available on
STM3210X-EVAL board ******************************************************/
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_LEDInit(LED3);
STM_EVAL_LEDInit(LED4);
/* Initialize TIM6 */
TIM6_Config();
/* Initialize the LCD */
#ifdef USE_STM322xG_EVAL
STM322xG_LCD_Init();
#elif defined USE_STM324xG_EVAL
STM324xG_LCD_Init();
#elif defined USE_STM3210C_EVAL
STM3210C_LCD_Init();
#elif defined USE_STM32100E_EVAL
STM32100E_LCD_Init();
#elif defined USE_STM32L152_EVAL
STM32L152_LCD_Init();
#elif defined USE_STM32L152D_EVAL
STM32L152D_LCD_Init();
#endif
/* Display message on STM3210X-EVAL LCD *************************************/
/* Clear the LCD */
LCD_Clear(White);
/* Set the LCD Back Color */
LCD_SetBackColor(Blue);
/* Set the LCD Text Color */
LCD_SetTextColor(Yellow);
LCD_DisplayStringLine(Line0, MESSAGE1);
LCD_DisplayStringLine(Line1, MESSAGE2);
LCD_DisplayStringLine(Line5, MESSAGE3);
/* Configure the Push buttons in interrupt mode *****************************/
#if defined (USE_STM32100E_EVAL) || defined(USE_STM3210C_EVAL) || defined(USE_STM322xG_EVAL ) || defined (USE_STM324xG_EVAL)
STM_EVAL_PBInit(BUTTON_KEY, Mode_EXTI);
STM_EVAL_PBInit(BUTTON_TAMPER, Mode_EXTI);
#elif defined (USE_STM32L152_EVAL) || defined (USE_STM32L152D_EVAL)
STM_EVAL_PBInit(BUTTON_LEFT, Mode_EXTI);
STM_EVAL_PBInit(BUTTON_RIGHT, Mode_EXTI);
#endif /* USE_STM32100E_EVAL || USE_STM3210C_EVAL || USE_STM322xG_EVAL || USE_STM324xG_EVAL */
/* Start CPAL communication configuration ***********************************/
/* Initialize local Reception structures */
sRxStructure.wNumData = BufferSize; /* Maximum Number of data to be received */
sRxStructure.pbBuffer = tRxBuffer; /* Common Rx buffer for all received data */
sRxStructure.wAddr1 = OWN_ADDRESS; /* The own board address */
sRxStructure.wAddr2 = 0; /* Not needed */
/* Initialize local Transmission structures */
sTxStructure.wNumData = BufferSize; /* Maximum Number of data to be received */
sTxStructure.pbBuffer = (uint8_t*)tStateSignal; /* Common Rx buffer for all received data */
sTxStructure.wAddr1 = OWN_ADDRESS; /* The own board address */
sTxStructure.wAddr2 = 0; /* Not needed */
/* Configure the device structure */
CPAL_I2C_StructInit(&I2C_DevStructure); /* Set all fields to default values */
I2C_DevStructure.CPAL_Mode = CPAL_MODE_SLAVE;
#ifdef CPAL_I2C_DMA_PROGMODEL
I2C_DevStructure.wCPAL_Options = CPAL_OPT_NO_MEM_ADDR | CPAL_OPT_I2C_NACK_ADD;
I2C_DevStructure.CPAL_ProgModel = CPAL_PROGMODEL_DMA;
#elif defined (CPAL_I2C_IT_PROGMODEL)
I2C_DevStructure.wCPAL_Options = CPAL_OPT_NO_MEM_ADDR | CPAL_OPT_I2C_NACK_ADD;
I2C_DevStructure.CPAL_ProgModel = CPAL_PROGMODEL_INTERRUPT;
#else
#error "Please select one of the programming model (in main.h)"
#endif
I2C_DevStructure.pCPAL_I2C_Struct->I2C_ClockSpeed = I2C_SPEED;
I2C_DevStructure.pCPAL_I2C_Struct->I2C_OwnAddress1 = OWN_ADDRESS;
I2C_DevStructure.pCPAL_TransferRx = &sRxStructure;
I2C_DevStructure.pCPAL_TransferTx = &sTxStructure;
/* Initialize CPAL device with the selected parameters */
CPAL_I2C_Init(&I2C_DevStructure);
/* Infinite loop */
while (1)
{
/* Write operations ------------------------------------------------------*/
/* Check if any action has been triggered by push buttons */
if ((ActionState != ACTION_PENDING) && (ActionState != ACTION_NONE))
{
/* Check if the current CPAL device state allows write operation */
if (((DeviceMode == SLAVE) && (LastMode == SLAVE))||\
(((I2C_DevStructure.CPAL_State == CPAL_STATE_READY) ||\
(I2C_DevStructure.CPAL_State == CPAL_STATE_DISABLED)) && (DeviceMode == MASTER)))
{
if (LastMode == SLAVE)
{
/* Set the LCD Back Color */
LCD_SetBackColor(Red);
/* Set the LCD Text Color */
LCD_SetTextColor(White);
LCD_DisplayStringLine(Line3, (uint8_t*)" MASTER MODE ACTIVE ");
/* Set the LCD Back Color */
LCD_SetBackColor(White);
/* Set the LCD Text Color */
LCD_SetTextColor(Blue);
/* Disable CPAL_OPT_I2C_NACK_ADD option when switch to Master mode */
I2C_DevStructure.wCPAL_Options &= (~CPAL_OPT_I2C_NACK_ADD);
}
LastMode = MASTER;
/* Initialize local Reception structures */
sRxStructure.wNumData = BufferSize;
/* Initialize local Transmission structures */
sTxStructure.wNumData = BufferSize;
switch (ActionState)
{
case BUTTON_KEY:
TransmitMode = STATE_ON;
sTxStructure.pbBuffer = (uint8_t*)tSignal;
Divider = 2;
break;
case BUTTON_TAMPER:
TransmitMode = STATE_OFF;
sRxStructure.pbBuffer = tRxBuffer;
Divider = 4;
break;
case ACTION_PERIODIC:
if(TransmitMode == STATE_ON)
{
sTxStructure.pbBuffer = (uint8_t*)tStateSignal;
}
break;
default:
break;
}
/* Configure the device mode to master */
I2C_DevStructure.CPAL_Mode = CPAL_MODE_MASTER;
/* Force the CPAL state to ready (in case a read operation has been initiated) */
I2C_DevStructure.CPAL_State = CPAL_STATE_READY;
/* Prevent other actions to be performed while the current is not finished */
ActionState = ACTION_PENDING;
DeviceMode = MASTER;
/* Configure a Timer to generate periodic interrupt: used to send state signal */
TIM7_Config(PeriodicValue/Divider);
if(TransmitMode == STATE_ON)
{
/* Start writing data in master mode */
if (CPAL_I2C_Write(&I2C_DevStructure) == CPAL_PASS)
{
}
}
else
{
/* Start reading data in master mode */
if (CPAL_I2C_Read(&I2C_DevStructure) == CPAL_PASS)
{
}
}
}
}
/* Read Operations -------------------------------------------------------*/
if (((I2C_DevStructure.CPAL_State == CPAL_STATE_READY) || \
(I2C_DevStructure.CPAL_State == CPAL_STATE_DISABLED)) && \
(DeviceMode == SLAVE))
{
/* Reconfigure device for slave receiver mode */
I2C_DevStructure.CPAL_Mode = CPAL_MODE_SLAVE;
I2C_DevStructure.CPAL_State = CPAL_STATE_READY;
if (LastMode == SLAVE)
{
/* Set the LCD Back Color */
LCD_SetBackColor(Red);
/* Set the LCD Text Color */
LCD_SetTextColor(White);
LCD_DisplayStringLine(Line3, (uint8_t*)" SLAVE MODE ACTIVE ");
/* Set the LCD Back Color */
LCD_SetBackColor(White);
/* Set the LCD Text Color */
LCD_SetTextColor(Blue);
}
/* Start waiting for data to be received in slave mode */
if (CPAL_I2C_Listen(&I2C_DevStructure) == CPAL_PASS)
{
LCD_DisplayStringLine(Line9, MEASSAGE_EMPTY);
}
}
}
}
