/*
* See the serial2.h header file.
*/
xComPortHandle xSerialPortInitMinimal( uint32_t ulWantedBaud, UBaseType_t uxQueueLength )
{
BaseType_t xStatus;
XUartPs_Config *pxConfig;
/* Create the queue used to hold received characters. NOTE THE COMMENTS AT
THE TOP OF THIS FILE REGARDING THE USE OF QUEUES FOR THIS PURPSOE. */
xRxQueue = xQueueCreate( uxQueueLength, sizeof( char ) );
configASSERT( xRxQueue );
/* Create the semaphore used to signal the end of a transmission, then take
the semaphore so it is in the correct state the first time
xSerialSendString() is called. A block time of zero is used when taking
the semaphore as it is guaranteed to be available (it was just created). */
xTxCompleteSemaphore = xSemaphoreCreateBinary();
configASSERT( xTxCompleteSemaphore );
xSemaphoreTake( xTxCompleteSemaphore, 0 );
/* Look up the UART configuration then initialise the dirver. */
pxConfig = XUartPs_LookupConfig( XPAR_XUARTPS_0_DEVICE_ID );
/* Initialise the driver. */
xStatus = XUartPs_CfgInitialize( &xUARTInstance, pxConfig, XPAR_PS7_UART_1_BASEADDR );
configASSERT( xStatus == XST_SUCCESS );
( void ) xStatus; /* Remove compiler warning if configASSERT() is not defined. */
/* Misc. parameter configuration. */
XUartPs_SetBaudRate( &xUARTInstance, ulWantedBaud );
XUartPs_SetOperMode( &xUARTInstance, XUARTPS_OPER_MODE_NORMAL );
/* Install the interrupt service routine that is defined within this
file. */
xStatus = XScuGic_Connect( &xInterruptController, XPAR_XUARTPS_1_INTR, (Xil_ExceptionHandler) prvUART_Handler, (void *) &xUARTInstance );
configASSERT( xStatus == XST_SUCCESS );
( void ) xStatus; /* Remove compiler warning if configASSERT() is not defined. */
/* Ensure interrupts start clear. */
XUartPs_WriteReg( XPAR_PS7_UART_1_BASEADDR, XUARTPS_ISR_OFFSET, XUARTPS_IXR_MASK );
/* Enable the UART interrupt within the GIC. */
XScuGic_Enable( &xInterruptController, XPAR_XUARTPS_1_INTR );
/* Enable the interrupts of interest in the UART. */
XUartPs_SetInterruptMask( &xUARTInstance, XUARTPS_IXR_RXFULL | XUARTPS_IXR_RXOVR | XUARTPS_IXR_TOUT | XUARTPS_IXR_TXEMPTY );
/* Set the receive timeout. */
XUartPs_SetRecvTimeout( &xUARTInstance, 8 );
return ( xComPortHandle ) 0;
}
/**
*
* This function does a minimal test on the UartPS device and driver as a
* design example. The purpose of this function is to illustrate
* how to use the XUartPs driver.
*
* This function sends data and expects to receive the same data through the
* device using the local loopback mode.
*
* This function uses interrupt mode of the device.
*
* @param IntcInstPtr is a pointer to the instance of the Scu Gic driver.
* @param UartInstPtr is a pointer to the instance of the UART driver
* which is going to be connected to the interrupt controller.
* @param DeviceId is the device Id of the UART device and is typically
* XPAR_<UARTPS_instance>_DEVICE_ID value from xparameters.h.
* @param UartIntrId is the interrupt Id and is typically
* XPAR_<UARTPS_instance>_INTR value from xparameters.h.
*
* @return XST_SUCCESS if successful, otherwise XST_FAILURE.
*
* @note
*
* This function contains an infinite loop such that if interrupts are not
* working it may never return.
*
**************************************************************************/
int UartPsIntrExample(XScuGic *IntcInstPtr, XUartPs *UartInstPtr,
u16 DeviceId, u16 UartIntrId)
{
int Status;
XUartPs_Config *Config;
int Index;
u32 IntrMask;
int BadByteCount = 0;
/*
* Initialize the UART driver so that it's ready to use
* Look up the configuration in the config table, then initialize it.
*/
Config = XUartPs_LookupConfig(DeviceId);
if (NULL == Config) {
return XST_FAILURE;
}
Status = XUartPs_CfgInitialize(UartInstPtr, Config, Config->BaseAddress);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Check hardware build
*/
Status = XUartPs_SelfTest(UartInstPtr);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Connect the UART to the interrupt subsystem such that interrupts
* can occur. This function is application specific.
*/
Status = SetupInterruptSystem(IntcInstPtr, UartInstPtr, UartIntrId);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Setup the handlers for the UART that will be called from the
* interrupt context when data has been sent and received, specify
* a pointer to the UART driver instance as the callback reference
* so the handlers are able to access the instance data
*/
XUartPs_SetHandler(UartInstPtr, (XUartPs_Handler)Handler, UartInstPtr);
/*
* Enable the interrupt of the UART so interrupts will occur, setup
* a local loopback so data that is sent will be received.
*/
IntrMask =
XUARTPS_IXR_TOUT | XUARTPS_IXR_PARITY | XUARTPS_IXR_FRAMING |
XUARTPS_IXR_OVER | XUARTPS_IXR_TXEMPTY | XUARTPS_IXR_RXFULL |
XUARTPS_IXR_RXOVR;
XUartPs_SetInterruptMask(UartInstPtr, IntrMask);
XUartPs_SetOperMode(UartInstPtr, XUARTPS_OPER_MODE_LOCAL_LOOP);
/*
* Set the receiver timeout. If it is not set, and the last few bytes
* of data do not trigger the over-water or full interrupt, the bytes
* will not be received. By default it is disabled.
*
* The setting of 8 will timeout after 8 x 4 = 32 character times.
* Increase the time out value if baud rate is high, decrease it if
* baud rate is low.
*/
XUartPs_SetRecvTimeout(UartInstPtr, 8);
/*
* Initialize the send buffer bytes with a pattern and the
* the receive buffer bytes to zero to allow the receive data to be
* verified
*/
for (Index = 0; Index < TEST_BUFFER_SIZE; Index++) {
SendBuffer[Index] = (Index % 26) + 'A';
RecvBuffer[Index] = 0;
}
/*
* Start receiving data before sending it since there is a loopback,
* ignoring the number of bytes received as the return value since we
* know it will be zero
*/
XUartPs_Recv(UartInstPtr, RecvBuffer, TEST_BUFFER_SIZE);
/*
* Send the buffer using the UART and ignore the number of bytes sent
* as the return value since we are using it in interrupt mode.
*/
XUartPs_Send(UartInstPtr, SendBuffer, TEST_BUFFER_SIZE);
/*
* Wait for the entire buffer to be received, letting the interrupt
* processing work in the background, this function may get locked
* up in this loop if the interrupts are not working correctly.
*/
while (1) {
if ((TotalSentCount == TEST_BUFFER_SIZE) &&
(TotalReceivedCount == TEST_BUFFER_SIZE)) {
break;
}
}
/*
* Verify the entire receive buffer was successfully received
*/
for (Index = 0; Index < TEST_BUFFER_SIZE; Index++) {
if (RecvBuffer[Index] != SendBuffer[Index]) {
BadByteCount++;
}
}
/*
* Set the UART in Normal Mode
*/
XUartPs_SetOperMode(UartInstPtr, XUARTPS_OPER_MODE_NORMAL);
/*
* If any bytes were not correct, return an error
*/
if (BadByteCount != 0) {
return XST_FAILURE;
}
return XST_SUCCESS;
}
int setupUartControl(){
int Status;
u32 IntrMask;
Config = XUartPs_LookupConfig(UART_DEVICE_ID);
if (NULL == Config) {
return XST_FAILURE;
}
Status = XUartPs_CfgInitialize(&Uart_Ps, Config, Config->BaseAddress);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
XUartPs_SetBaudRate(&Uart_Ps, 115200);
/*
* Check hardware build.
*/
Status = XUartPs_SelfTest(&Uart_Ps);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Connect the UART to the interrupt subsystem such that interrupts
* can occur. This function is application specific.
*/
Status = SetupInterruptSystem(&InterruptController, &Uart_Ps, UART_INT_IRQ_ID);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Setup the handlers for the UART that will be called from the
* interrupt context when data has been sent and received, specify
* a pointer to the UART driver instance as the callback reference
* so the handlers are able to access the instance data
*/
XUartPs_SetHandler(&Uart_Ps, (XUartPs_Handler)Handler, &Uart_Ps);
/*
* Enable the interrupt of the UART so interrupts will occur
*/
IntrMask =
XUARTPS_IXR_TOUT | XUARTPS_IXR_PARITY | XUARTPS_IXR_FRAMING |
XUARTPS_IXR_OVER | XUARTPS_IXR_TXEMPTY | XUARTPS_IXR_RXFULL |
XUARTPS_IXR_RXOVR;
XUartPs_SetInterruptMask(&Uart_Ps, IntrMask);
/*
* Set the receiver timeout. If it is not set, and the last few bytes
* of data do not trigger the over-water or full interrupt, the bytes
* will not be received. By default it is disabled.
*
* The setting of 8 will timeout after 8 x 4 = 32 character times.
* Increase the time out value if baud rate is high, decrease it if
* baud rate is low.
*/
XUartPs_SetRecvTimeout(&Uart_Ps, 255);
return 0;
}
int main()
{
char buff[4];
init_platform();
int Status;
XUartPs_Config *Config;
int Index;
u32 IntrMask = 0;
int BadByteCount = 0;
if (XGetPlatform_Info() == XPLAT_ZYNQ_ULTRA_MP) {
#ifdef XPAR_XUARTPS_1_DEVICE_ID
DeviceId = XPAR_XUARTPS_1_DEVICE_ID;
#endif
}
/*
* Initialize the UART driver so that it's ready to use
* Look up the configuration in the config table, then initialize it.
*/
Config = XUartPs_LookupConfig(UART_DEVICE_ID);
if (NULL == Config) {
return XST_FAILURE;
}
Status = XUartPs_CfgInitialize(&uart, Config, Config->BaseAddress);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
/* Check hardware build */
Status = XUartPs_SelfTest(&uart);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Connect the UART to the interrupt subsystem such that interrupts
* can occur. This function is application specific.
*/
Status = SetupInterruptSystem(&intc, &uart, UART_INT_IRQ_ID);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
//force receive interrupt for every byte (char)
XUartPs_SetFifoThreshold(&uart, 1);
/*
* Setup the handlers for the UART that will be called from the
* interrupt context when data has been sent and received, specify
* a pointer to the UART driver instance as the callback reference
* so the handlers are able to access the instance data
*/
XUartPs_SetHandler(&uart, (XUartPs_Handler)Handler, &uart);
/*
* Enable the interrupt of the UART so interrupts will occur
*/
IntrMask =
XUARTPS_IXR_TOUT | XUARTPS_IXR_PARITY | XUARTPS_IXR_FRAMING |
XUARTPS_IXR_OVER | XUARTPS_IXR_TXEMPTY | XUARTPS_IXR_RXFULL |
XUARTPS_IXR_RXOVR;
if (uart.Platform == XPLAT_ZYNQ_ULTRA_MP) {
IntrMask |= XUARTPS_IXR_RBRK;
}
XUartPs_SetInterruptMask(&uart, IntrMask);
//XUartPs_SetOperMode(UartInstPtr, XUARTPS_OPER_MODE_LOCAL_LOOP);
/* Set the UART in Normal Mode */
XUartPs_SetOperMode(&uart, XUARTPS_OPER_MODE_NORMAL);
/*
* Set the receiver timeout. If it is not set, and the last few bytes
* of data do not trigger the over-water or full interrupt, the bytes
* will not be received. By default it is disabled.
*
* The setting of 8 will timeout after 8 x 4 = 32 character times.
* Increase the time out value if baud rate is high, decrease it if
* baud rate is low.
*/
//XUartPs_SetRecvTimeout(&uart, 8);
/* Run the UartPs Interrupt example, specify the the Device ID */
//currently sets up some of uart.Need to pull out what is needed
Status = UartPsIntrExample(&intc, &uart,UART_DEVICE_ID, UART_INT_IRQ_ID);
/* if (Status != XST_SUCCESS) {
xil_printf("UART Interrupt Example Test Failed\r\n");
return XST_FAILURE;
} */
xil_printf("Successfully ran UART Interrupt Example Test\r\n");
xil_printf("count = %i\r\n", count);
return XST_SUCCESS;
cleanup_platform();
return 0;
}
/***************************************************************************
* Looks up the current config and initializes psGenericInterruptController(GIC)
***************************************************************************/
void init_GIC()
{
int Status;
XScuGic_Config *Config;
/* Initialize GIC */
Config = XScuGic_LookupConfig(INTCONTROLLER_DEVICE_ID);
Status = XScuGic_CfgInitialize(&InterruptInstancePtr, Config, Config->CpuBaseAddress);
if(Status != XST_FAILURE) {
xil_printf("InterruptConroller initialized!\n \r");
}
/* Connect to the handler */
Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_IRQ_INT,(Xil_ExceptionHandler)XScuGic_InterruptHandler,&InterruptInstancePtr);
Xil_ExceptionEnable();
/* ADC setup */
Status = XScuGic_Connect(&InterruptInstancePtr,ADC_WIZ_INT_ID,(Xil_ExceptionHandler) ADC_Intr_Handler, (void *) &InterruptInstancePtr);
XScuGic_Enable(&InterruptInstancePtr,ADC_WIZ_INT_ID);
XScuGic_SetPriorityTriggerType(&InterruptInstancePtr,ADC_WIZ_INT_ID,0xA0,0x3);
if(Status != XST_FAILURE) {
xil_printf("ADC interrupts OK!!\n \r");
}
/* UART0 setup */
XUartPs_SetInterruptMask(&Uart0InstancePtr, UART0_INT_MASK);
XUartPs_SetHandler(&Uart0InstancePtr, (XUartPs_Handler) UART_Intr_Handler,(void *) UART0_DEVICE_ID);
//XUartPs_InterruptHandler(&Uart1InstancePtr);
if(Status != XST_FAILURE) {
xil_printf("UART0 interrupts OK!!\n \r");
}
/* UART1 setup */
*Intrpt_en_reg1 = UART1_INT_MASK;
*Intrpt_dis_reg1 = 0xFFFFFD3D;
xil_printf("Interruptmask for UART1 = %x \n \r",XUartPs_GetInterruptMask(&Uart1InstancePtr));
/*XUartPs_SetInterruptMask(&Uart1InstancePtr, UART1_INT_MASK);
xil_printf("Interruptmask for UART1 = %x \n \r",XUartPs_GetInterruptMask(&Uart1InstancePtr));
XUartPs_SetHandler(&Uart1InstancePtr,(XUartPs_Handler) UART_Intr_Handler,(void *) UART1_DEVICE_ID);*/
Status = XScuGic_Connect(&InterruptInstancePtr,UART1_INT_ID,(Xil_ExceptionHandler) UART_Intr_Handler, (void *) &InterruptInstancePtr);
XScuGic_Enable(&InterruptInstancePtr,UART1_INT_ID);
XScuGic_SetPriorityTriggerType(&InterruptInstancePtr,UART1_INT_ID,0xA0,0x3);
if(Status != XST_FAILURE) {
xil_printf("UART1 interrupts OK!!\n \r");
}
/* Buttons setup */
Status = XScuGic_Connect(&InterruptInstancePtr,GPIO_BTNS_INT_ID,(Xil_ExceptionHandler) BTNS_Intr_Handler, (void *) &InterruptInstancePtr);
XScuGic_Enable(&InterruptInstancePtr,GPIO_BTNS_INT_ID);
XScuGic_SetPriorityTriggerType(&InterruptInstancePtr,GPIO_BTNS_INT_ID,0xA0,0x3);
if(Status != XST_FAILURE) {
xil_printf("BUTTONS interrupts OK!!\n \r");
}
}