SYS_MODULE_OBJ STIMULUS_USART_DRV_Initialize(const SYS_MODULE_INDEX index,
const SYS_MODULE_INIT * const init )
{
/* Get the USART COnfig Data */
configData = (DRV_USART_CONFIG_INIT *)init;
/* Initialize USART */
PLIB_USART_BaudRateSet(configData->usartId, SYS_CLK_PeripheralFrequencyGet(CLK_BUS_PERIPHERAL_1), configData->baudRate);
PLIB_USART_HandshakeModeSelect(configData->usartId, USART_HANDSHAKE_MODE_FLOW_CONTROL);
PLIB_USART_OperationModeSelect(configData->usartId, USART_ENABLE_TX_RX_USED);
PLIB_USART_LineControlModeSelect(configData->usartId, configData->lineControl);
PLIB_USART_TransmitterEnable(configData->usartId);
PLIB_USART_TransmitterInterruptModeSelect(configData->usartId, USART_TRANSMIT_FIFO_NOT_FULL);
PLIB_USART_ReceiverEnable(configData->usartId);
PLIB_USART_ReceiverInterruptModeSelect(configData->usartId, configData->rxIntMode);
/* Initialize interrupts */
/* Note: TX interrupt must be enabled when data is ready to be transmitted */
/* The following code can be used to enable TX Interrupt */
/* PLIB_INT_SourceEnable(INT_ID_0, INT_SOURCE_USART_1_TRANSMIT); */
PLIB_INT_SourceEnable(INT_ID_0, INT_SOURCE_USART_1_RECEIVE);
PLIB_INT_SourceEnable(INT_ID_0, INT_SOURCE_USART_1_ERROR);
PLIB_INT_VectorPrioritySet(INT_ID_0, INT_VECTOR_UART1, INT_PRIORITY_LEVEL1);
PLIB_INT_VectorSubPrioritySet(INT_ID_0, INT_VECTOR_UART1, INT_SUBPRIORITY_LEVEL0);
PLIB_USART_Enable(configData->usartId);
}
void DRV_USART0_Initialize(void)
{
/* Initialize USART */
PLIB_USART_BaudRateSet(USART_ID_1, SYS_CLK_PeripheralFrequencyGet(CLK_BUS_PERIPHERAL_2), 9600);
PLIB_USART_HandshakeModeSelect(USART_ID_1, USART_HANDSHAKE_MODE_FLOW_CONTROL);
PLIB_USART_OperationModeSelect(USART_ID_1, USART_ENABLE_TX_RX_USED);
PLIB_USART_LineControlModeSelect(USART_ID_1, USART_8N1);
PLIB_USART_TransmitterEnable(USART_ID_1);
PLIB_USART_TransmitterInterruptModeSelect(USART_ID_1, USART_TRANSMIT_FIFO_NOT_FULL);
PLIB_USART_ReceiverEnable(USART_ID_1);
PLIB_USART_ReceiverInterruptModeSelect(USART_ID_1, USART_RECEIVE_FIFO_ONE_CHAR);
/* Initialize TX interrupt */
PLIB_INT_SourceEnable(INT_ID_0, INT_SOURCE_USART_1_TRANSMIT);
PLIB_INT_VectorPrioritySet(INT_ID_0, INT_VECTOR_UART1_TX, INT_PRIORITY_LEVEL1);
PLIB_INT_VectorSubPrioritySet(INT_ID_0, INT_VECTOR_UART1_TX, INT_SUBPRIORITY_LEVEL0);
/* Initialize RX interrupt */
PLIB_INT_SourceEnable(INT_ID_0, INT_SOURCE_USART_1_RECEIVE);
PLIB_INT_VectorPrioritySet(INT_ID_0, INT_VECTOR_UART1_RX, INT_PRIORITY_LEVEL1);
PLIB_INT_VectorSubPrioritySet(INT_ID_0, INT_VECTOR_UART1_RX, INT_SUBPRIORITY_LEVEL0);
/* Initialize Fault interrupt */
PLIB_INT_SourceEnable(INT_ID_0, INT_SOURCE_USART_1_ERROR);
PLIB_INT_VectorPrioritySet(INT_ID_0, INT_VECTOR_UART1_FAULT, INT_PRIORITY_LEVEL1);
PLIB_INT_VectorSubPrioritySet(INT_ID_0, INT_VECTOR_UART1_FAULT, INT_SUBPRIORITY_LEVEL0);
PLIB_USART_Enable(USART_ID_1);
}
void DRV_USART0_Initialize(void)
{
/* Initialize USART */
PLIB_USART_BaudRateSet(USART_ID_1, SYS_CLK_PeripheralFrequencyGet(CLK_BUS_PERIPHERAL_1), 115200);
PLIB_USART_HandshakeModeSelect(USART_ID_1, USART_HANDSHAKE_MODE_SIMPLEX);
PLIB_USART_OperationModeSelect(USART_ID_1, USART_ENABLE_TX_RX_USED);
PLIB_USART_LineControlModeSelect(USART_ID_1, USART_8N1);
PLIB_USART_TransmitterEnable(USART_ID_1);
PLIB_USART_TransmitterInterruptModeSelect(USART_ID_1, USART_TRANSMIT_FIFO_EMPTY);
PLIB_USART_Enable(USART_ID_1);
}
/**********************************************************
* Application tasks routine. This function implements the
* application state machine.
***********************************************************/
void APP_Tasks ( void )
{
/* check the application state*/
switch ( appData.state )
{
case USART_ENABLE:
/* Enable the UART module*/
PLIB_USART_Enable(USART_ID_2);
appData.stringPointer = txPowerValuesBuff_1;
;
appData.state = USART_TRANSMIT_FIRST_STRING;
break;
case USART_TRANSMIT_FIRST_STRING:
if(true == WriteString())
{
appData.state = USART_TRANSMIT_SECOND_STRING;
appData.stringPointer = string2;
}
break;
case USART_TRANSMIT_SECOND_STRING:
if(true == WriteString())
{
appData.state = USART_RECEIVE_DONE;
}
break;
case USART_RECEIVE_DONE:
if (appData.InterruptFlag)
{
if(true == PutCharacter(appData.data))
{
BSP_LEDOn(BSP_LED_3);
appData.InterruptFlag = false;
}
}
break;
default:
SYS_DEBUG (SYS_ERROR_FATAL,"ERROR! Invalid state\r\n");
while (1);
}
}
void APP_Debug_Initialize(){
// PPS Output Mapping:
PLIB_PORTS_RemapOutput(PORTS_ID_0, OUTPUT_FUNC_U1TX, OUTPUT_PIN_RPD3 );
/* Initialize USART */
PLIB_USART_BaudRateSet(APP_DEBUG_USART_ID, SYS_CLK_PeripheralFrequencyGet(CLK_BUS_PERIPHERAL_1), APP_DEBUG_USART_BAUD);
PLIB_USART_HandshakeModeSelect(APP_DEBUG_USART_ID, USART_HANDSHAKE_MODE_FLOW_CONTROL);
PLIB_USART_OperationModeSelect(APP_DEBUG_USART_ID, USART_ENABLE_TX_RX_USED);
PLIB_USART_LineControlModeSelect(APP_DEBUG_USART_ID, USART_8N1);
PLIB_USART_TransmitterEnable(APP_DEBUG_USART_ID);
PLIB_USART_Enable(APP_DEBUG_USART_ID);
}
void hal_uart_dma_init(void){
bytes_to_write = 0;
bytes_to_read = 0;
/* PPS Input Remapping */
PLIB_PORTS_RemapInput(PORTS_ID_0, INPUT_FUNC_U2RX, INPUT_PIN_RPF4 );
PLIB_PORTS_RemapInput(PORTS_ID_0, INPUT_FUNC_U2CTS, INPUT_PIN_RPB2 );
/* PPS Output Remapping */
PLIB_PORTS_RemapOutput(PORTS_ID_0, OUTPUT_FUNC_U2RTS, OUTPUT_PIN_RPG9 );
PLIB_PORTS_RemapOutput(PORTS_ID_0, OUTPUT_FUNC_U2TX, OUTPUT_PIN_RPF5 );
/* Initialize USART */
PLIB_USART_BaudRateSet(BT_USART_ID, SYS_CLK_PeripheralFrequencyGet(CLK_BUS_PERIPHERAL_1), BT_USART_BAUD);
PLIB_USART_HandshakeModeSelect(BT_USART_ID, USART_HANDSHAKE_MODE_FLOW_CONTROL);
PLIB_USART_OperationModeSelect(BT_USART_ID, USART_ENABLE_TX_RX_CTS_RTS_USED);
PLIB_USART_LineControlModeSelect(BT_USART_ID, USART_8N1);
PLIB_USART_TransmitterEnable(BT_USART_ID);
// PLIB_USART_TransmitterInterruptModeSelect(bluetooth_uart_id, USART_TRANSMIT_FIFO_IDLE);
PLIB_USART_ReceiverEnable(BT_USART_ID);
// PLIB_USART_ReceiverInterruptModeSelect(bluetooth_uart_id, USART_RECEIVE_FIFO_ONE_CHAR);
PLIB_USART_Enable(BT_USART_ID);
// enable _RESET
SYS_PORTS_PinDirectionSelect(PORTS_ID_0, SYS_PORTS_DIRECTION_OUTPUT, BT_RESET_PORT, BT_RESET_BIT);
bluetooth_power_cycle();
// After reset, CTS is high and we need to wait until CTS is low again
// HACK: CTS doesn't seem to work right now
msleep(250);
// HACK: CSR seems to do an auto-baud on the uart, which makes the first HCI RESET fail
// 2 options: a) check for CTS going high within 10 ms, b) just send HCI RESET twice
// const uint8_t hci_reset_cmd[] = {0x01, 0x03, 0x0c, 0x00};
// int pos = 0;
// while(pos < sizeof(hci_reset_cmd)){
// if (PLIB_USART_TransmitterIsEmpty(BT_USART_ID)){
// PLIB_USART_TransmitterByteSend(BT_USART_ID, hci_reset_cmd[pos]);
// pos++;
// }
// }
// msleep(250);
}
void DRV_USART0_Initialize(void)
{
/* Initialize USART */
PLIB_USART_BaudRateSet(USART_ID_2, SYS_CLK_PeripheralFrequencyGet(CLK_BUS_PERIPHERAL_1), 230400);
PLIB_USART_HandshakeModeSelect(USART_ID_2, USART_HANDSHAKE_MODE_SIMPLEX);
PLIB_USART_OperationModeSelect(USART_ID_2, USART_ENABLE_TX_RX_USED);
PLIB_USART_LineControlModeSelect(USART_ID_2, USART_8N1);
PLIB_USART_TransmitterEnable(USART_ID_2);
PLIB_USART_TransmitterInterruptModeSelect(USART_ID_2, USART_TRANSMIT_FIFO_NOT_FULL);
/* Initialize interrupts */
/* Note: TX interrupt must be enabled when data is ready to be transmitted */
/* The following code can be used to enable TX Interrupt */
/* PLIB_INT_SourceEnable(INT_ID_0, INT_SOURCE_USART_2_TRANSMIT); */
PLIB_INT_SourceEnable(INT_ID_0, INT_SOURCE_USART_2_ERROR);
PLIB_INT_VectorPrioritySet(INT_ID_0, INT_VECTOR_UART2, INT_PRIORITY_LEVEL1);
PLIB_INT_VectorSubPrioritySet(INT_ID_0, INT_VECTOR_UART2, INT_SUBPRIORITY_LEVEL0);
PLIB_USART_Enable(USART_ID_2);
}
int hal_uart_dma_set_baud(uint32_t baud){
PLIB_USART_Disable(BT_USART_ID);
PLIB_USART_BaudRateSet(BT_USART_ID, SYS_CLK_PeripheralFrequencyGet(CLK_BUS_PERIPHERAL_1), baud);
PLIB_USART_Enable(BT_USART_ID);
return 0;
}
SYS_MODULE_OBJ DRV_USART_Initialize
(
const SYS_MODULE_INDEX drvIndex,
const SYS_MODULE_INIT * const init
)
{
DRV_USART_OBJ *dObj = (DRV_USART_OBJ*)NULL;
DRV_USART_INIT *usartInit = NULL ;
/* Check if the specified driver index is in valid range */
if(drvIndex >= DRV_USART_INSTANCES_NUMBER)
{
SYS_DEBUG(0, "Invalid driver index");
return SYS_MODULE_OBJ_INVALID;
}
/* Check if this hardware instance was already initialized */
if(gDrvUSARTObj[drvIndex].inUse != false)
{
SYS_DEBUG(0, "Instance already in use");
return SYS_MODULE_OBJ_INVALID;
}
/* Assign to the local pointer the init data passed */
usartInit = ( DRV_USART_INIT * ) init ;
/* Disable the USART module */
PLIB_USART_Disable (usartInit->usartID) ;
/* Allocate the driver object and set the operation flag to be in use */
dObj = &gDrvUSARTObj[drvIndex];
dObj->inUse = true;
/* Update the USART PLIB Id and other parameters. */
dObj->nClients = 0;
dObj->moduleId = usartInit->usartID;
dObj->brgClock = usartInit->brgClock;
dObj->isExclusive = false;
dObj->queueSizeRead = usartInit->queueSizeReceive;
dObj->queueSizeWrite = usartInit->queueSizeTransmit;
dObj->dmaChannelRead = usartInit->dmaReceive;
dObj->dmaChannelWrite = usartInit->dmaTransmit;
dObj->txInterruptSource = usartInit->interruptTransmit;
dObj->rxInterruptSource = usartInit->interruptReceive;
dObj->errorInterruptSource = usartInit->interruptError;
dObj->dmaInterruptTransmit = usartInit->dmaInterruptTransmit;
dObj->dmaInterruptReceive = usartInit->dmaInterruptReceive;
dObj->interruptNestingCount = 0;
dObj->queueSizeCurrentRead = 0;
dObj->queueSizeCurrentWrite = 0;
/* Setup the Hardware */
_DRV_USART_HardwareSetup(usartInit->usartID, usartInit ) ;
/* Clear the interrupts */
SYS_INT_SourceStatusClear(dObj->txInterruptSource);
SYS_INT_SourceStatusClear(dObj->rxInterruptSource);
SYS_INT_SourceStatusClear(dObj->errorInterruptSource);
/* Enable the interrupt source in case of interrupt mode */
_DRV_USART_InterruptSourceEnable(dObj->errorInterruptSource);
/* TODO: Enable DMA interrupts if the DMA channel is selected */
/* Create the hardware instance mutex. */
OSAL_ASSERT((OSAL_MUTEX_Create(&(dObj->mutexDriverInstance)) == OSAL_RESULT_TRUE),
"Unable to create hardware instance mutex");
/* Check if the global mutexes have been created. If not
then create these. */
if(!gDrvUSARTCommonDataObj.membersAreInitialized)
{
/* This means that mutexes where not created. Create them. */
OSAL_ASSERT((OSAL_MUTEX_Create(&(gDrvUSARTCommonDataObj.mutexClientObjects)) == OSAL_RESULT_TRUE),
"Unable to create client instance mutex");
OSAL_ASSERT((OSAL_MUTEX_Create(&(gDrvUSARTCommonDataObj.mutexBufferQueueObjects)) == OSAL_RESULT_TRUE),
"Unable to create buffer queue objects mutex");
/* Set this flag so that global mutexes get allocated only once */
gDrvUSARTCommonDataObj.membersAreInitialized = true;
}
/* Enable the USART module */
PLIB_USART_Enable(usartInit->usartID) ;
/* Update the status */
dObj->status = SYS_STATUS_READY;
/* Return the object structure */
return ( (SYS_MODULE_OBJ)drvIndex );
}