private/hsb
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fixed UART RX problems

Browse Source 
git-svn-id: https://svn.vbchaos.nl/svn/hsb/trunk@232 05563f52-14a8-4384-a975-3d1654cca0fa
This commit is contained in:
mmi
2017-10-04 12:54:11 +00:00
parent 73a391f720
commit 8b315602e9
7 changed files with 115 additions and 51 deletions
Download Patch File Download Diff File Expand all files Collapse all files

64
S - Software/0 - HSB MRTS Kathode-MCP/3 - Implementation/0 - Code/Platform/src/uart.c
View File

@@ -32,7 +32,7 @@
#include "uart.h"
#include "misc.h"
#include "led.h"
// -----------------------------------------------------------------------------
// Constant and macro definitions
@@ -55,6 +55,7 @@
static ErrorStatus write(const struct IODevice* self, const char* buffer, size_t length);
static ErrorStatus read(const struct IODevice* self, char* buffer, size_t length, size_t* actualLength);
// -----------------------------------------------------------------------------
// Function definitions
@@ -65,20 +66,20 @@ ErrorStatus Uart_construct(struct Uart* self, struct UartParameters* parameters)
{
ErrorStatus returnValue = SUCCESS;
IODevice_construct(&self->device, NULL, write);
IODevice_construct(&self->device, read, write);
//! Create semaphore to synchronize with USART interrupt handler
vSemaphoreCreateBinary(self->txSemaphore);
USART_DeInit(self->USART_TypeDef);
self->USART_ClockInitStruct->USART_Clock = USART_Clock_Enable;
self->USART_ClockInitStruct->USART_CPHA = USART_CPHA_1Edge;
self->USART_ClockInitStruct->USART_CPOL = USART_CPOL_Low;
self->USART_ClockInitStruct->USART_LastBit = USART_LastBit_Disable;
//! Enable USART clock
USART_ClockInit(self->USART_TypeDef, self->USART_ClockInitStruct);
// self->USART_ClockInitStruct->USART_Clock = USART_Clock_Enable;
// self->USART_ClockInitStruct->USART_CPHA = USART_CPHA_1Edge;
// self->USART_ClockInitStruct->USART_CPOL = USART_CPOL_Low;
// self->USART_ClockInitStruct->USART_LastBit = USART_LastBit_Enable;
//
// //! Enable USART clock
// USART_ClockInit(self->USART_TypeDef, self->USART_ClockInitStruct);
// Initialise the UART
self->USART_InitStruct.USART_BaudRate = parameters->baudrate;
@@ -117,6 +118,14 @@ ErrorStatus Uart_construct(struct Uart* self, struct UartParameters* parameters)
returnValue = ERROR;
}
struct usartQueueItem tmp;
tmp.byte = 0x01;
xQueueSend(self->rxQueue, &tmp, 0);
tmp.byte++;
xQueueSend(self->rxQueue, &tmp, 0);
tmp.byte++;
xQueueSend(self->rxQueue, &tmp, 0);
if (returnValue == SUCCESS)
{
//! Enable the UART RX not empty interrupt
@@ -146,11 +155,16 @@ ErrorStatus Uart_getDefaultParameters(struct UartParameters* parameters)
static ErrorStatus write(const struct IODevice* self, const char* buffer, size_t length)
{
return Uart_Write((struct Uart*)self, buffer, length);
return Uart_write((struct Uart*)self, buffer, length);
}
ErrorStatus Uart_Write(struct Uart* self, const char* buffer, int length)
static ErrorStatus read(const struct IODevice* self, char* buffer, size_t length, size_t* actualLength)
{
return Uart_read((struct Uart*)self, buffer, length, actualLength);
}
ErrorStatus Uart_write(struct Uart* self, const char* buffer, int length)
{
struct usartQueueItem usartTxItem;
ErrorStatus returnValue = SUCCESS; //! Define return variable
@@ -202,8 +216,32 @@ ErrorStatus Uart_Write(struct Uart* self, const char* buffer, int length)
{
//! Do nothing
}
return (returnValue); //! Return result to caller
}
ErrorStatus Uart_read (struct Uart* self, char* buffer, size_t length, size_t* actualLength)
{
ErrorStatus returnValue = SUCCESS;
int loopCounter = 0;
*actualLength = 0;
struct usartQueueItem usartRxItem;
for (loopCounter = 0; loopCounter < length; loopCounter++)
{
if (xQueueReceive(self->rxQueue, &usartRxItem, 0) != pdFALSE)
{
// Item successfully fetched from Queue
buffer[loopCounter] = usartRxItem.byte;
*actualLength = *actualLength + 1;
}
else
{
break;
}
}
return returnValue;
}