uint32_t CPAL_TIMEOUT_UserCallback(CPAL_InitTypeDef* pDevInitStruct)
{
WarnReport(ERROR_CPAL_TIMEOUT, "MBUS CPAL_TIMEOUT,Mode=%u,State=%u,Error=%u",
pDevInitStruct->CPAL_Mode,
pDevInitStruct->CPAL_State,
pDevInitStruct->wCPAL_DevError);
// if in slave mode
if(pDevInitStruct->CPAL_Mode == CPAL_MODE_SLAVE) {
pDevInitStruct->CPAL_State = CPAL_STATE_READY;
#if defined (CPAL_I2C_LISTEN_MODE) && defined (CPAL_I2C_SLAVE_MODE)
CPAL_I2C_Listen(pDevInitStruct);
#endif
}
// otherwise in master mode
else {
pDevInitStruct->CPAL_State = CPAL_STATE_READY;
//if (pDevInitStruct->CPAL_Dev == CPAL_I2C1)
// mBusRestart(1);
//else if (pDevInitStruct->CPAL_Dev == CPAL_I2C2)
// mBusRestart(2);
//}
}
return CPAL_PASS;
}
uint8_t mBusSlaveListen(uint8_t i2cNum) {
mBusTypeDef* mBus = getmBusPtr(i2cNum);
if(mBus->CPAL_InitStruct->CPAL_State == CPAL_STATE_READY
|| mBus->CPAL_InitStruct->CPAL_State == CPAL_STATE_DISABLED)
{
mBus->CPAL_InitStruct->CPAL_State = CPAL_STATE_READY;
CPAL_I2C_Listen(mBus->CPAL_InitStruct);
}
return 0;
}
/**
* @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);
}
}
}
}
