/**
* @brief Handle interrupt from UART
* @return Nothing
*/
void UART1_IRQHandler(void)
{
uint8_t ch;
uint32_t IntStatus = Chip_UART_GetIntStatus(LPC_USART1);
if (IntStatus & RXRDY_INT) {
if(receiveCompleted == false) {
Chip_UART_ReceiveByte(LPC_USART1, &RxBuf1[RxBufCnt1++]);
if (RxBufCnt1 == BUFFER_SIZE) {
Chip_UART_IntEnable(LPC_USART1, RXRDY_INT, DISABLE);
receiveCompleted = true;
RxBufCnt1 = 0;
}
}
else {
Chip_UART_ReceiveByte(LPC_USART1, &ch);
}
}
if (IntStatus & TXRDY_INT) {
if (sendCompleted == false) {
Chip_UART_SendByte(LPC_USART1, RxBuf1[TxBufCnt1++]);
if (TxBufCnt1 == BUFFER_SIZE) {
Chip_UART_IntEnable(LPC_USART1, TXRDY_INT, DISABLE);
sendCompleted = true;
TxBufCnt1 = 0;
}
}
else {
return;
}
}
}
void ciaaUARTInit(void)
{
/* UART0 (RS485/Profibus) */
Chip_UART_Init(LPC_USART0);
Chip_UART_SetBaud(LPC_USART0, 115200);
Chip_UART_TXEnable(LPC_USART0);
Chip_SCU_PinMux(9, 5, MD_PDN, FUNC7); /* P9_5: UART0_TXD */
Chip_SCU_PinMux(9, 6, MD_PLN|MD_EZI|MD_ZI, FUNC7); /* P9_6: UART0_RXD */
Chip_UART_SetRS485Flags(LPC_USART0, UART_RS485CTRL_DCTRL_EN | UART_RS485CTRL_OINV_1);
Chip_SCU_PinMux(6, 2, MD_PDN, FUNC2); /* P6_2: UART0_DIR */
/* Restart FIFOS: set Enable, Reset content, set trigger level */
Chip_UART_SetupFIFOS(LPC_USART0, UART_FCR_FIFO_EN | UART_FCR_TX_RS | UART_FCR_RX_RS | UART_FCR_TRG_LEV0);
/* dummy read */
Chip_UART_ReadByte(LPC_USART0);
/* enable rx interrupt */
Chip_UART_IntEnable(LPC_USART0, UART_IER_RBRINT);
NVIC_EnableIRQ(USART0_IRQn);
RingBuffer_Init(uarts[0].rrb, rxbuf[0], 1, UART_BUF_SIZE);
RingBuffer_Init(uarts[0].trb, txbuf[0], 1, UART_BUF_SIZE);
/* UART2 (USB-UART) */
Chip_UART_Init(LPC_USART2);
Chip_UART_SetBaud(LPC_USART2, 115200);
Chip_UART_TXEnable(LPC_USART2);
Chip_SCU_PinMux(7, 1, MD_PDN, FUNC6); /* P7_1: UART2_TXD */
Chip_SCU_PinMux(7, 2, MD_PLN|MD_EZI|MD_ZI, FUNC6); /* P7_2: UART2_RXD */
Chip_UART_IntEnable(LPC_USART2, UART_IER_RBRINT);
NVIC_EnableIRQ(USART2_IRQn);
RingBuffer_Init(uarts[1].rrb, rxbuf[1], 1, UART_BUF_SIZE);
RingBuffer_Init(uarts[1].trb, txbuf[1], 1, UART_BUF_SIZE);
/* UART3 (RS232) */
Chip_UART_Init(LPC_USART3);
Chip_UART_SetBaud(LPC_USART3, 115200);
Chip_UART_TXEnable(LPC_USART3);
Chip_SCU_PinMux(2, 3, MD_PDN, FUNC2); /* P2_3: UART3_TXD */
Chip_SCU_PinMux(2, 4, MD_PLN|MD_EZI|MD_ZI, FUNC2); /* P2_4: UART3_RXD */
Chip_UART_IntEnable(LPC_USART3, UART_IER_RBRINT);
NVIC_EnableIRQ(USART3_IRQn);
RingBuffer_Init(uarts[2].rrb, rxbuf[2], 1, UART_BUF_SIZE);
RingBuffer_Init(uarts[2].trb, txbuf[2], 1, UART_BUF_SIZE);
}
extern int32_t ciaaDriverUart_ioctl(ciaaDevices_deviceType const * const device, int32_t const request, void * param)
{
int32_t ret = -1;
if((device == ciaaDriverUartConst.devices[0]) ||
(device == ciaaDriverUartConst.devices[1]) ||
(device == ciaaDriverUartConst.devices[2]) )
{
switch(request)
{
case ciaaPOSIX_IOCTL_STARTTX:
/* disable THRE irq (TX) */
Chip_UART_IntDisable((LPC_USART_T *)device->loLayer, UART_IER_THREINT);
/* this one calls write */
ciaaDriverUart_txConfirmation(device);
/* enable THRE irq (TX) */
Chip_UART_IntEnable((LPC_USART_T *)device->loLayer, UART_IER_THREINT);
ret = 0;
break;
case ciaaPOSIX_IOCTL_SET_BAUDRATE:
ret = Chip_UART_SetBaud((LPC_USART_T *)device->loLayer, (int32_t)param);
break;
case ciaaPOSIX_IOCTL_SET_FIFO_TRIGGER_LEVEL:
Chip_UART_SetupFIFOS((LPC_USART_T *)device->loLayer, UART_FCR_FIFO_EN | UART_FCR_TX_RS | UART_FCR_RX_RS | (int32_t)param);
break;
case ciaaPOSIX_IOCTL_SET_ENABLE_TX_INTERRUPT:
if((bool)(intptr_t)param == false)
{
/* disable THRE irq (TX) */
Chip_UART_IntDisable((LPC_USART_T *)device->loLayer, UART_IER_THREINT);
}
else
{
/* enable THRE irq (TX) */
Chip_UART_IntEnable((LPC_USART_T *)device->loLayer, UART_IER_THREINT);
}
break;
case ciaaPOSIX_IOCTL_SET_ENABLE_RX_INTERRUPT:
if((bool)(intptr_t)param == false)
{
/* disable RBR irq (RX) */
Chip_UART_IntDisable((LPC_USART_T *)device->loLayer, UART_IER_RBRINT);
}
else
{
/* enable RBR irq (RX) */
Chip_UART_IntEnable((LPC_USART_T *)device->loLayer, UART_IER_RBRINT);
}
break;
}
}
return ret;
}
/* Init seriové linky a pinů určených k přenosu dat
* Nastavení UARTu: 115.2K8N1.
* FIFO lvl3 - 14 znaků.
* */
void setup_uarts(){
/* UART0 set up */
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 2, (IOCON_FUNC1 | IOCON_MODE_INACT));
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 3, (IOCON_FUNC1 | IOCON_MODE_INACT));
/* Setup UART0 for 115.2K8N1 */
Chip_UART_Init(LPC_UART0);
Chip_UART_SetBaud(LPC_UART0, 115200);
Chip_UART_ConfigData(LPC_UART0, (UART_LCR_WLEN8 | UART_LCR_SBS_1BIT));
Chip_UART_SetupFIFOS(LPC_UART0, (UART_FCR_FIFO_EN | UART_FCR_TRG_LEV2));
Chip_UART_TXEnable(LPC_UART0);
Chip_UART_IntEnable(UART0, (UART_IER_RBRINT));
Chip_UART_SetupFIFOS(LPC_UART0, (UART_FCR_FIFO_EN | UART_FCR_RX_RS |
UART_FCR_TX_RS | UART_FCR_TRG_LEV3));
NVIC_EnableIRQ(UART0_IRQn);
/* UART2 set up */
Chip_IOCON_PinMuxSet(LPC_IOCON, 2, 8, (IOCON_FUNC2 | IOCON_MODE_INACT));
Chip_IOCON_PinMuxSet(LPC_IOCON, 2, 9, (IOCON_FUNC2 | IOCON_MODE_INACT));
/* Setup UART4 for 115.2K8N1 */
Chip_UART_Init(UART2);
Chip_UART_SetBaudFDR(UART2, 115200);
Chip_UART_ConfigData(UART2, (UART_LCR_WLEN8 | UART_LCR_SBS_1BIT | UART_LCR_PARITY_DIS));
Chip_UART_TXEnable(UART2);
Chip_UART_IntEnable(UART2, (UART_IER_RBRINT));
Chip_UART_SetupFIFOS(UART2, (UART_FCR_FIFO_EN | UART_FCR_RX_RS |
UART_FCR_TX_RS | UART_FCR_TRG_LEV3));
NVIC_EnableIRQ(UART2_IRQn);
/* UART4 set up */
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 22, (IOCON_FUNC3 | IOCON_MODE_INACT));
Chip_IOCON_PinMuxSet(LPC_IOCON, 5, 3, (IOCON_FUNC4 | IOCON_MODE_INACT));
/* Setup UART4 for 115.2K8N1 */
Chip_UART_Init(LPC_UART4);
Chip_UART_SetBaudFDR(LPC_UART4, 115200);
Chip_UART_ConfigData(LPC_UART4, (UART_LCR_WLEN8 | UART_LCR_SBS_1BIT | UART_LCR_PARITY_DIS));
Chip_UART_TXEnable(LPC_UART4);
Chip_UART_IntEnable(LPC_UART4, (UART_IER_RBRINT));
Chip_UART_SetupFIFOS(LPC_UART4, (UART_FCR_FIFO_EN | UART_FCR_RX_RS |
UART_FCR_TX_RS | UART_FCR_TRG_LEV3));
//Chip_UART_SetAutoBaudReg(LPC_UART4,UART_ACR_START | UART_ACR_MODE);
NVIC_EnableIRQ(UART4_IRQn);
}
/* UART port init routine */
void UCOM_UartInit(void)
{
/* Board specific muxing */
Init_UART_PinMux();
/* Before setting up the UART, the global UART clock for USARTS 1-4
must first be setup. This requires setting the UART divider and
the UART base clock rate to 16x the maximum UART rate for all
UARTs. */
#if defined(USE_INTEGER_CLOCK)
/* Use main clock rate as base for UART baud rate divider */
Chip_Clock_SetUARTBaseClockRate(Chip_Clock_GetMainClockRate(), false);
#else
/* Use 128x expected UART baud rate for fractional baud mode. */
Chip_Clock_SetUARTBaseClockRate((115200 * 128), true);
#endif
/* Setup UART */
Chip_UART_Init(LPC_USART);
Chip_UART_ConfigData(LPC_USART, UART_CFG_DATALEN_8 | UART_CFG_PARITY_NONE | UART_CFG_STOPLEN_1);
Chip_UART_SetBaud(LPC_USART, UART_TEST_DEFAULT_BAUDRATE);
/* Optional for low clock rates only: Chip_UART_SetBaudWithRTC32K(LPC_USART, 300); */
Chip_UART_Enable(LPC_USART);
Chip_UART_TXEnable(LPC_USART);
/* Enable receive data and line status interrupt */
Chip_UART_IntEnable(LPC_USART, UART_INTEN_RXRDY);
/* Enable Interrupt for UART channel */
/* Priority = 1 */
NVIC_SetPriority(LPC_IRQNUM, 1);
/* Enable Interrupt for UART channel */
NVIC_EnableIRQ(LPC_IRQNUM);
}
/**
* @brief Main UART program body
* @return Always returns 1
*/
int main(void)
{
uint8_t key;
int bytes;
SystemCoreClockUpdate();
Board_Init();
Board_UART_Init(LPC_UARTX);
Board_LED_Set(0, false);
/* Setup UART for 115.2K8N1 */
Chip_UART_Init(LPC_UARTX);
Chip_UART_SetBaud(LPC_UARTX, 115200);
Chip_UART_ConfigData(LPC_UARTX, (UART_LCR_WLEN8 | UART_LCR_SBS_1BIT));
Chip_UART_SetupFIFOS(LPC_UARTX, (UART_FCR_FIFO_EN | UART_FCR_TRG_LEV2));
Chip_UART_TXEnable(LPC_UARTX);
/* Before using the ring buffers, initialize them using the ring
buffer init function */
RingBuffer_Init(&rxring, rxbuff, 1, UART_RRB_SIZE);
RingBuffer_Init(&txring, txbuff, 1, UART_SRB_SIZE);
/* Reset and enable FIFOs, FIFO trigger level 3 (14 chars) */
Chip_UART_SetupFIFOS(LPC_UARTX, (UART_FCR_FIFO_EN | UART_FCR_RX_RS |
UART_FCR_TX_RS | UART_FCR_TRG_LEV3));
/* Enable receive data and line status interrupt */
Chip_UART_IntEnable(LPC_UARTX, (UART_IER_RBRINT | UART_IER_RLSINT));
/* preemption = 1, sub-priority = 1 */
NVIC_SetPriority(UARTx_IRQn, 1);
NVIC_EnableIRQ(UARTx_IRQn);
/* Send initial messages */
Chip_UART_SendRB(LPC_UARTX, &txring, inst1, sizeof(inst1) - 1);
Chip_UART_SendRB(LPC_UARTX, &txring, inst2, sizeof(inst2) - 1);
/* Poll the receive ring buffer for the ESC (ASCII 27) key */
key = 0;
while (key != 27) {
bytes = Chip_UART_ReadRB(LPC_UARTX, &rxring, &key, 1);
if (bytes > 0) {
/* Wrap value back around */
if (Chip_UART_SendRB(LPC_UARTX, &txring, (const uint8_t *) &key, 1) != 1) {
Board_LED_Toggle(0);/* Toggle LED if the TX FIFO is full */
}
}
}
/* DeInitialize UART0 peripheral */
NVIC_DisableIRQ(UARTx_IRQn);
Chip_UART_DeInit(LPC_UARTX);
return 1;
}
//================================================[UART Management]==========================================================
void Board_UART_Init(LPC_USART_T *pUART)
{
if(pUART==LPC_USART0)
{
/* UART0 (RS485/Profibus) */
Chip_UART_Init(LPC_USART0);
Chip_UART_SetBaud(LPC_USART0, 115200);
Chip_UART_SetupFIFOS(LPC_USART0, UART_FCR_FIFO_EN | UART_FCR_TRG_LEV0);
Chip_UART_TXEnable(LPC_USART0);
Chip_SCU_PinMux(9, 5, MD_PDN, FUNC7); /* P9_5: UART0_TXD */
Chip_SCU_PinMux(9, 6, MD_PLN|MD_EZI|MD_ZI, FUNC7); /* P9_6: UART0_RXD */
Chip_UART_SetRS485Flags(LPC_USART0, UART_RS485CTRL_DCTRL_EN | UART_RS485CTRL_OINV_1);
Chip_SCU_PinMux(6, 2, MD_PDN, FUNC2); /* P6_2: UART0_DIR */
uart0RxBufferData.buffer = NULL;
uart0RxBufferData.size=0;
uart0RxBufferData.index=0;
uart0RxBufferData.flagNewPacket=0;
uart0RxBufferData.timeoutCounter=0;
//NVIC_SetPriority(USART0_IRQn, 1);
//NVIC_EnableIRQ(USART0_IRQn);
}
else if(pUART==LPC_USART3)
{
/* UART3 (RS232) */
Chip_UART_Init(LPC_USART3);
Chip_UART_SetBaud(LPC_USART3, 115200);
Chip_UART_SetupFIFOS(LPC_USART3, UART_FCR_FIFO_EN | UART_FCR_TRG_LEV0);
Chip_UART_TXEnable(LPC_USART3);
Chip_SCU_PinMux(2, 3, MD_PDN, FUNC2); /* P2_3: UART3_TXD */
Chip_SCU_PinMux(2, 4, MD_PLN|MD_EZI|MD_ZI, FUNC2); /* P2_4: UART3_RXD */
uart3RxBufferData.buffer = NULL;
uart3RxBufferData.size=0;
uart3RxBufferData.index=0;
uart3RxBufferData.flagNewPacket=0;
uart3RxBufferData.timeoutCounter=0;
//NVIC_SetPriority(USART3_IRQn, 1);
//NVIC_EnableIRQ(USART3_IRQn);
}
/* Restart FIFOS: set Enable, Reset content, set trigger level */
Chip_UART_SetupFIFOS(pUART, UART_FCR_FIFO_EN | UART_FCR_TX_RS | UART_FCR_RX_RS | UART_FCR_TRG_LEV0);
/* dummy read */
Chip_UART_ReadByte(pUART);
/* enable rx interrupt */
Chip_UART_IntEnable(pUART, UART_IER_RBRINT);
}
/* UART port init routine */
static void UCOM_UartInit(int i)
{
/* Pin-muxing done in board init. */
//Init_UART_PinMux();
if(i==1)
{
Chip_UART_Init(LPC_UART0);
Chip_UART_SetBaud(LPC_UART0, 115200);
Chip_UART_ConfigData(LPC_UART0, (UART_LCR_WLEN8 | UART_LCR_SBS_1BIT));
Chip_UART_SetupFIFOS(LPC_UART0, (UART_FCR_FIFO_EN | UART_FCR_TRG_LEV2));
Chip_UART_TXEnable(LPC_UART0);
/* Enable receive data and line status interrupt */
Chip_UART_IntEnable(LPC_UART0, (UART_IER_RBRINT | UART_IER_RLSINT));
/* Enable Interrupt for UART channel */
/* Priority = 1 */
NVIC_SetPriority(UART0_IRQn, 1);
/* Enable Interrupt for UART channel */
}
if(i==2)
{
Chip_UART_Init(LPC_UART2);
Chip_UART_SetBaud(LPC_UART2, 115200);
Chip_UART_ConfigData(LPC_UART2, (UART_LCR_WLEN8 | UART_LCR_SBS_1BIT));
Chip_UART_SetupFIFOS(LPC_UART2, (UART_FCR_FIFO_EN | UART_FCR_TRG_LEV2));
Chip_UART_TXEnable(LPC_UART2);
/* Enable receive data and line status interrupt */
Chip_UART_IntEnable(LPC_UART2, (UART_IER_RBRINT | UART_IER_RLSINT));
/* Enable Interrupt for UART channel */
/* Priority = 1 */
NVIC_SetPriority(UART2_IRQn, 1);
/* Enable Interrupt for UART channel */
}
}
/*==================[external functions definition]==========================*/
extern ciaaDevices_deviceType * ciaaDriverUart_open(char const * path, ciaaDevices_deviceType * device, uint8_t const oflag)
{
/* Restart FIFOS: set Enable, Reset content, set trigger level */
Chip_UART_SetupFIFOS((LPC_USART_T *)device->loLayer, UART_FCR_FIFO_EN | UART_FCR_TX_RS | UART_FCR_RX_RS | UART_FCR_TRG_LEV0);
/* dummy read */
Chip_UART_ReadByte((LPC_USART_T *)device->loLayer);
/* enable rx interrupt */
Chip_UART_IntEnable((LPC_USART_T *)device->loLayer, UART_IER_RBRINT);
return device;
}
int skynetbase_gps_init(void) {
DBG("begin init GPS...\n");
NVIC_DisableIRQ(GPS_IRQn);
Chip_UART_IntDisable(GPS_UART, (UART_IER_RBRINT | UART_IER_RLSINT));
Chip_UART_Init(GPS_UART);
Chip_UART_SetBaud(GPS_UART, 9600);
Chip_UART_ConfigData(GPS_UART, (UART_LCR_WLEN8 | UART_LCR_SBS_1BIT));
Chip_UART_SetupFIFOS(GPS_UART, (UART_FCR_FIFO_EN | UART_FCR_TRG_LEV2));
Chip_UART_TXEnable(GPS_UART);
// Before using the ring buffers, initialize them using the ring buffer init function
RingBuffer_Init(&rxring, rxbuff, 1, UART_RRB_SIZE);
RingBuffer_Init(&txring, txbuff, 1, UART_SRB_SIZE);
// Reset and enable FIFOs, FIFO trigger level 3 (14 chars)
Chip_UART_SetupFIFOS(GPS_UART, (UART_FCR_FIFO_EN | UART_FCR_RX_RS |
UART_FCR_TX_RS | UART_FCR_TRG_LEV3));
/* Enable receive data and line status interrupt */
Chip_UART_IntEnable(GPS_UART, (UART_IER_RBRINT | UART_IER_RLSINT));
/* preemption = 1, sub-priority = 1 */
NVIC_SetPriority(GPS_IRQn, 1);
NVIC_EnableIRQ(GPS_IRQn);
DBG("GPS up.\n");
skynetbase_gps_config("$PUBX,40,GLL,0,0,0,0*5C\r\n");
msDelayActive(250);
skynetbase_gps_config("$PUBX,40,ZDA,0,0,0,0*44\r\n");
msDelayActive(250);
skynetbase_gps_config("$PUBX,40,VTG,0,0,0,0*5E\r\n");
msDelayActive(250);
skynetbase_gps_config("$PUBX,40,GSV,0,0,0,0*59\r\n");
msDelayActive(250);
skynetbase_gps_config("$PUBX,40,RMC,0,0,0,0*47\r\n");
msDelayActive(250);
skynetbase_gps_config("$PUBX,40,GSA,0,0,0,0*4E\r\n");
msDelayActive(250);
skynetbase_gps_config("$PUBX,40,GGA,0,0,0,0*5A\r\n");
msDelayActive(250);
DBG("GPS configured.\n");
// TODO
return 1;
}
/* UCOM bulk EP_IN and EP_OUT endpoints handler */
static ErrorCode_t UCOM_bulk_hdlr(USBD_HANDLE_T hUsb, void *data, uint32_t event)
{
UCOM_DATA_T *pUcom = (UCOM_DATA_T *) data;
uint32_t count = 0;
switch (event) {
/* A transfer from us to the USB host that we queued has completed. */
case USB_EVT_IN:
/* check if UART had more data to send */
if (pUcom->rxBuf_uartIndex < pUcom->rxBuf_usbIndex) {
count = UCOM_BUF_SZ - pUcom->rxBuf_usbIndex;
}
else {
count = pUcom->rxBuf_uartIndex - pUcom->rxBuf_usbIndex;
}
if (count) {
pUcom->usbTxBusy = 1;
count = USBD_API->hw->WriteEP(pUcom->hUsb, USB_CDC_IN_EP, &pUcom->rxBuf[g_uCOM.rxBuf_usbIndex], count);
g_uCOM.rxBuf_usbIndex = (g_uCOM.rxBuf_usbIndex + count) & (UCOM_BUF_SZ - 1);
}
else {
pUcom->usbTxBusy = 0;
}
break;
/* We received a transfer from the USB host . */
case USB_EVT_OUT:
if ((Chip_UART_GetIntsEnabled(LPC_USART) & UART_IER_THREINT) == 0) {
pUcom->txBuf_count = USBD_API->hw->ReadEP(hUsb, USB_CDC_OUT_EP, pUcom->txBuf);
pUcom->txBuf_uartIndex = 0;
/* kick start UART tranmission */
pUcom->txBuf_uartIndex = Chip_UART_Send(LPC_USART,
&pUcom->txBuf[g_uCOM.txBuf_uartIndex],
pUcom->txBuf_count);
pUcom->txBuf_count -= pUcom->txBuf_uartIndex;
/* Enable UART transmit interrupt */
Chip_UART_IntEnable(LPC_USART, UART_IER_THREINT);
}
else {
pUcom->usbRxPending++;
}
break;
default:
break;
}
return LPC_OK;
}
/* Populate a transmit ring buffer and start UART transmit */
uint32_t Chip_UART_SendRB(LPC_USART_T *pUART, RINGBUFF_T *pRB, const void *data, int bytes)
{
uint32_t ret;
uint8_t *p8 = (uint8_t *) data;
/* Don't let UART transmit ring buffer change in the UART IRQ handler */
Chip_UART_IntDisable(pUART, UART_IER_THREINT);
/* Move as much data as possible into transmit ring buffer */
ret = RingBuffer_InsertMult(pRB, p8, bytes);
Chip_UART_TXIntHandlerRB(pUART, pRB);
/* Add additional data to transmit ring buffer if possible */
ret += RingBuffer_InsertMult(pRB, (p8 + ret), (bytes - ret));
/* Enable UART transmit interrupt */
Chip_UART_IntEnable(pUART, UART_IER_THREINT);
return ret;
}
/* UART port init routine */
static void UCOM_UartInit(void)
{
/* Board specific muxing */
Init_UART_PinMux();
Chip_UART_Init(LPC_USART);
Chip_UART_SetBaud(LPC_USART, 115200);
Chip_UART_ConfigData(LPC_USART, (UART_LCR_WLEN8 | UART_LCR_SBS_1BIT));
Chip_UART_SetupFIFOS(LPC_USART, (UART_FCR_FIFO_EN | UART_FCR_TRG_LEV2));
Chip_UART_TXEnable(LPC_USART);
/* Enable receive data and line status interrupt */
Chip_UART_IntEnable(LPC_USART, (UART_IER_RBRINT | UART_IER_RLSINT));
/* Enable Interrupt for UART channel */
/* Priority = 1 */
NVIC_SetPriority(UART0_IRQn, 1);
/* Enable Interrupt for UART channel */
NVIC_EnableIRQ(UART0_IRQn);
}
/* Initialize Interrupt for UART */
static void App_Interrupt_Init(void)
{
/* Enable UART Rx & line status interrupts */
/*
* Do not enable transmit interrupt here, since it is handled by
* UART_Send() function, just to reset Tx Interrupt state for the
* first time
*/
Chip_UART_IntEnable(LPC_UART, (UART_IER_RBRINT | UART_IER_RLSINT));
/* Before using the ring buffers, initialize them using the ring
buffer init function */
RingBuffer_Init(&rxring, rxbuff, 1, UART_RB_SIZE);
RingBuffer_Init(&txring, txbuff, 1, UART_RB_SIZE);
/* Enable Interrupt for UART channel */
/* Priority = 1 */
NVIC_SetPriority(UARTx_IRQn, 1);
/* Enable Interrupt for UART channel */
NVIC_EnableIRQ(UARTx_IRQn);
}
void uart_init(void)
{
/* Board specific muxing */
uart_pinmux();
Chip_UART_Init(LPC_USART);
Chip_UART_SetBaudFDR(LPC_USART, 115200);
Chip_UART_ConfigData(LPC_USART, (UART_LCR_WLEN8 | UART_LCR_SBS_1BIT));
Chip_UART_SetupFIFOS(LPC_USART, (UART_FCR_FIFO_EN | UART_FCR_TRG_LEV2));
Chip_UART_TXEnable(LPC_USART);
RingBuffer_Init(&uart_rxrb, uart_rxdata, 1, UART_RX_BUF_SZ);
RingBuffer_Init(&uart_txrb, uart_txdata, 1, UART_TX_BUF_SZ);
/* Enable receive data and line status interrupt */
Chip_UART_IntEnable(LPC_USART, (UART_IER_RBRINT | UART_IER_RLSINT));
/* Enable Interrupt for UART channel */
/* Priority = 1 */
NVIC_SetPriority(UART0_IRQn, 1);
/* Enable Interrupt for UART channel */
NVIC_EnableIRQ(UART0_IRQn);
}
void UART_Init(void)
{
struct __serial_info *serial = (struct __serial_info *)(get_S2E_Packet_pointer()->serial_info);
/* Setup UART for 115.2K8N1 */
Chip_UART_Init(LPC_USART);
serial_info_init(serial);
Chip_UART_SetupFIFOS(LPC_USART, (UART_FCR_FIFO_EN | UART_FCR_TRG_LEV3));
Chip_UART_TXEnable(LPC_USART);
/* Before using the ring buffers, initialize them using the ring
buffer init function */
RingBuffer_Init(&rxring, rxbuff, 1, UART_RRB_SIZE);
RingBuffer_Init(&txring, txbuff, 1, UART_SRB_SIZE);
/* Enable receive data and line status interrupt */
Chip_UART_IntEnable(LPC_USART, (UART_IER_RBRINT | UART_IER_RLSINT));
/* preemption = 1, sub-priority = 1 */
NVIC_SetPriority(UART0_IRQn, 1);
NVIC_EnableIRQ(UART0_IRQn);
}
static ErrorCode_t UCOM_bulk_hdlrOutGeneric(USBD_HANDLE_T hUsb, void *data, uint32_t event)
{
UCOM_DATA_T *pUcom = (UCOM_DATA_T *) data;
switch (event) {
case USB_EVT_OUT:
if(pUcom->selected!=0){
if ((Chip_UART_GetIntsEnabled(pUcom->selected) & UART_IER_THREINT) == 0) {
pUcom->txBuf_count = USBD_API->hw->ReadEP(hUsb, pUcom->outEndpoint, pUcom->txBuf);
pUcom->txBuf_uartIndex = 0;
/* kick start UART tranmission */
pUcom->txBuf_uartIndex = Chip_UART_Send(pUcom->selected,
&pUcom->txBuf[pUcom->txBuf_uartIndex],
pUcom->txBuf_count);
pUcom->txBuf_count -= pUcom->txBuf_uartIndex;
/* Enable UART transmit interrupt */
Chip_UART_IntEnable(pUcom->selected, UART_IER_THREINT);
}
else {
pUcom->usbRxPending++;
}
return LPC_OK;
}
break;
break;
default:
break;
}
return ERR_USBD_UNHANDLED;
}
/**
* @brief Application main function
* @return Does not return
* @note This function will not return
*/
int main(void)
{
uint32_t i;
uint8_t repeat_num = UART_TEST_REPEAT_NUMBER;
volatile int j = 1;
uint8_t ch = 0;
uint32_t IntStatus;
/* Generic Initialization */
Board_Init();
Board_LED_Set(0, false);
/* Disable UART1 IRQ */
NVIC_DisableIRQ(UART1_IRQn);
/* Initialize the UARTs */
App_UART_Init(LPC_USART0);
App_UART_Init(LPC_USART1);
/* Custom Initialization */
Chip_UART_IntEnable(LPC_USART1, RXRDY_INT, DISABLE);
Chip_UART_IntEnable(LPC_USART1, TXRDY_INT, DISABLE);
NVIC_EnableIRQ(UART1_IRQn);
/* Data transfer loop */
while (repeat_num--) {
bufferInit(repeat_num);
/* Sending from UART0 (polling mode) to UART1 (interrupt mode) */
receiveCompleted = false;
Chip_UART_IntEnable(LPC_USART1, RXRDY_INT, ENABLE);
for (i = 0; i < BUFFER_SIZE; i++) {
while (Chip_UART_SendByte(LPC_USART0, TxBuf0[i]) != SUCCESS) {}
}
while (!receiveCompleted) {}
/* Clear Rx FIFO */
Chip_UART_ReceiveByte(LPC_USART0, &ch);
/* Sending from UART1 (interrupt mode) to UART0 (polling mode) */
sendCompleted = false;
Chip_UART_IntEnable(LPC_USART1, TXRDY_INT, ENABLE);
for (i = 0; i < BUFFER_SIZE; i++) {
while (Chip_UART_ReceiveByte(LPC_USART0, &RxBuf0[i]) != SUCCESS) {}
}
while (!sendCompleted) {}
bufferCheck();
}
NVIC_DisableIRQ(UART1_IRQn);
/* Test OK - Turn on Red LED */
Board_LED_Set(0, true);
/* Should not return */
while (j) {}
return 0;
}
/**
* @brief Main UART program body
* @return Always returns -1
*/
int main(void)
{
FlagStatus exitflag;
uint8_t buffer[10];
int ret = 0;
int len;
SystemCoreClockUpdate();
Board_Init();
Board_UART_Init(LPC_UART);
#if !((defined(CHIP_LPC43XX) && defined(BOARD_KEIL_MCB_18574357) && UARTNum==3) || ((!(defined(CHIP_LPC43XX) && defined(BOARD_KEIL_MCB_18574357))) && UARTNum==0))
Chip_UART_Init(LPC_UART);
Chip_UART_SetBaud(LPC_UART, 115200);
Chip_UART_ConfigData(LPC_UART, UART_LCR_WLEN8 | UART_LCR_SBS_1BIT); /* Default 8-N-1 */
/* Enable UART Transmit */
Chip_UART_TXEnable(LPC_UART);
#endif
/* Reset FIFOs, Enable FIFOs and DMA mode in UART */
Chip_UART_SetupFIFOS(LPC_UART, (UART_FCR_FIFO_EN | UART_FCR_RX_RS |
UART_FCR_TX_RS | UART_FCR_DMAMODE_SEL | UART_FCR_TRG_LEV0));
/* Enable UART End of Auto baudrate & Auto baudrate timeout interrupts */
Chip_UART_IntEnable(LPC_UART, (UART_IER_ABEOINT | UART_IER_ABTOINT));
/* preemption = 1, sub-priority = 1 */
NVIC_SetPriority(UARTx_IRQn, 1);
/* Enable Interrupt for UART0 channel */
NVIC_EnableIRQ(UARTx_IRQn);
/* Send UART Autobaud completed message */
Chip_UART_SendBlocking(LPC_UART, uartABStart, sizeof(uartABStart));
/* ---------------------- Auto baud rate section ----------------------- */
/* Start auto baudrate mode */
Chip_UART_ABCmd(LPC_UART, UART_ACR_MODE0, true, ENABLE);
/* Loop until auto baudrate mode complete */
while (Chip_UART_GetABEOStatus(LPC_UART) == RESET) {}
/* Send UART Autobaud completed message */
Chip_UART_SendBlocking(LPC_UART, uartABComplete, sizeof(uartABComplete));
/* Disable UART Interrupt */
NVIC_DisableIRQ(UARTx_IRQn);
/* Print welcome screen */
Print_Menu_Polling();
exitflag = RESET;
/* Read some data from the buffer */
while (exitflag == RESET) {
len = 0;
while (len == 0) {
len = Chip_UART_Read(LPC_UART, buffer, 1);
}
if (buffer[0] == 27) {
/* ESC key, set exit flag */
Chip_UART_SendBlocking(LPC_UART, uartPolling_menu3, sizeof(uartPolling_menu3));
ret = -1;
exitflag = SET;
}
else if (buffer[0] == 'c') {
Chip_UART_SendBlocking(LPC_UART, uartPolling_menu4, sizeof(uartPolling_menu4));
len = 0;
while (len == 0) {
len = Chip_UART_Read(LPC_UART, buffer, sizeof(buffer));
if ((buffer[0] != '1') && (buffer[0] != '2') && (buffer[0] != '3')) {
len = 0;
}
}
switch (buffer[0]) {
case '1': /* Polling Mode */
Chip_UART_SendBlocking(LPC_UART, uartPolling_menu5, sizeof(uartPolling_menu5));
break;
case '2': /* Interrupt Mode */
ret = 2;
/* Exitflag = SET; */
App_Interrupt_Test();
Print_Menu_Polling();
break;
case '3': /* DMA mode */
ret = 3;
App_DMA_Test();
Print_Menu_Polling();
break;
}
}
}
/* Wait for current transmission complete - THR must be empty */
while (Chip_UART_CheckBusy(LPC_UART) == SET) {}
/* DeInitialize UART0 peripheral */
Chip_UART_DeInit(LPC_UART);
return ret;
}
/**
* @brief Main UART program body
* @return Always returns 1
*/
int main(void)
{
uint8_t key;
int bytes;
SystemCoreClockUpdate();
Board_Init();
Init_UART_PinMux();
Board_LED_Set(0, false);
/* Before setting up the UART, the global UART clock for USARTS 1-4
must first be setup. This requires setting the UART divider and
the UART base clock rate to 16x the maximum UART rate for all
UARTs. */
#if defined(USE_INTEGER_CLOCK)
/* Use main clock rate as base for UART baud rate divider */
Chip_Clock_SetUARTBaseClockRate(Chip_Clock_GetMainClockRate(), false);
#else
/* Use 128x expected UART baud rate for fractional baud mode. */
Chip_Clock_SetUARTBaseClockRate((115200 * 128), true);
#endif
/* Setup UART */
Chip_UART_Init(LPC_USART);
Chip_UART_ConfigData(LPC_USART, UART_CFG_DATALEN_8 | UART_CFG_PARITY_NONE | UART_CFG_STOPLEN_1);
Chip_UART_SetBaud(LPC_USART, UART_TEST_DEFAULT_BAUDRATE);
/* Optional for low clock rates only: Chip_UART_SetBaudWithRTC32K(LPC_USART, 300); */
Chip_UART_Enable(LPC_USART);
Chip_UART_TXEnable(LPC_USART);
/* Before using the ring buffers, initialize them using the ring
buffer init function */
RingBuffer_Init(&rxring, rxbuff, 1, UART_RB_SIZE);
RingBuffer_Init(&txring, txbuff, 1, UART_RB_SIZE);
/* Enable receive data and line status interrupt */
Chip_UART_IntEnable(LPC_USART, UART_INTEN_RXRDY);
Chip_UART_IntDisable(LPC_USART, UART_INTEN_TXRDY); /* May not be needed */
/* Enable UART interrupt */
NVIC_EnableIRQ(LPC_IRQNUM);
/* Initial message sent using blocking method to prevent ring
buffer overflow */
Chip_UART_SendBlocking(LPC_USART, inst1, sizeof(inst1) - 1);
Chip_UART_SendRB(LPC_USART, &txring, inst2, sizeof(inst2) - 1);
/* Poll the receive ring buffer for the ESC (ASCII 27) key */
key = 0;
while (key != 27) {
bytes = Chip_UART_ReadRB(LPC_USART, &rxring, &key, 1);
if (bytes > 0) {
/* Wrap value back around */
if (Chip_UART_SendRB(LPC_USART, &txring, (const uint8_t *) &key, 1) != 1) {
Board_LED_Toggle(0);/* Toggle LED if the TX FIFO is full */
}
}
}
/* DeInitialize UART peripheral */
NVIC_DisableIRQ(LPC_IRQNUM);
Chip_UART_DeInit(LPC_USART);
return 1;
}
