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);
}
DRV_USART_BAUD_SET_RESULT DRV_USART_BaudSet(DRV_HANDLE handle, uint32_t baud)
{
DRV_USART_OBJ * hDriver;
DRV_USART_CLIENT_OBJ * client;
USART_MODULE_ID plibID;
/* Validate the handle */
client = _DRV_USART_DriverHandleValidate(handle);
if(client == NULL)
{
/* Driver handle is not valid. Return error */
SYS_DEBUG(0, "Invalid client handle");
return DRV_USART_BAUD_SET_ERROR;
}
hDriver = (DRV_USART_OBJ*)client->hDriver;
plibID = hDriver->moduleId;
if(OSAL_MUTEX_Lock(hDriver->mutexDriverInstance, OSAL_WAIT_FOREVER) == OSAL_RESULT_TRUE)
{
/* Set the baud rate */
PLIB_USART_BaudRateSet(plibID, hDriver->brgClock, baud);
}
else
{
/* The mutex timed out */
SYS_DEBUG(0, "Hardware instance mutex time out in DRV_USART_BaudSet() function");
return(DRV_USART_BAUD_SET_ERROR);
}
/* Return success */
return(DRV_USART_BAUD_SET_SUCCESS);
}
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);
}
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;
}