Esempi in C++ (Cpp) per uartStartTxDMA

Esempio n. 1

File: serial_uart.c Progetto: MuesliReep/cleanflight

uint8_t uartRead(serialPort_t *instance)
{
    uint8_t ch;
    uartPort_t *s = (uartPort_t *)instance;

#ifdef STM32F40_41xxx
    if (s->rxDMAStream) {
#else
    if (s->rxDMAChannel) {
#endif
    	ch = s->port.rxBuffer[s->port.rxBufferSize - s->rxDMAPos];
        if (--s->rxDMAPos == 0)
            s->rxDMAPos = s->port.rxBufferSize;
    } else {
        ch = s->port.rxBuffer[s->port.rxBufferTail];
        if (s->port.rxBufferTail + 1 >= s->port.rxBufferSize) {
            s->port.rxBufferTail = 0;
        } else {
            s->port.rxBufferTail++;
        }
    }

    return ch;
}

void uartWrite(serialPort_t *instance, uint8_t ch)
{
    uartPort_t *s = (uartPort_t *)instance;
    s->port.txBuffer[s->port.txBufferHead] = ch;
    if (s->port.txBufferHead + 1 >= s->port.txBufferSize) {
        s->port.txBufferHead = 0;
    } else {
        s->port.txBufferHead++;
    }

#ifdef STM32F40_41xxx
    if (s->txDMAStream) {
        if (!(s->txDMAStream->CR & 1))
#else
    if (s->txDMAChannel) {
        if (!(s->txDMAChannel->CCR & 1))
#endif
            uartStartTxDMA(s);
    } else {
        USART_ITConfig(s->USARTx, USART_IT_TXE, ENABLE);
    }
}

const struct serialPortVTable uartVTable[] = {
    {
        uartWrite,
        uartTotalRxBytesWaiting,
        uartTotalTxBytesFree,
        uartRead,
        uartSetBaudRate,
        isUartTransmitBufferEmpty,
        uartSetMode,
    }
};

Esempio n. 2

File: serial_uart_stm32f30x.c Progetto: Aeroprobing/Cleanflight

static void handleUsartTxDma(uartPort_t *s)
{
    DMA_Cmd(s->txDMAChannel, DISABLE);

    if (s->port.txBufferHead != s->port.txBufferTail)
        uartStartTxDMA(s);
    else
        s->txDMAEmpty = true;
}

Esempio n. 3

File: uart.c Progetto: CamBl98/afrodevices

// USART2 Tx DMA Handler
void DMA1_Channel7_IRQHandler(void)
{
    serialPort_t *s = &serialPort2;
    DMA_ClearITPendingBit(DMA1_IT_TC7);
    DMA_Cmd(s->txDMAChannel, DISABLE);

    if (s->txBufferHead != s->txBufferTail)
        uartStartTxDMA(s);
}

Esempio n. 4

File: drv_uart.c Progetto: whdlgp/Cupdrone_for_cpp

// USART1 Tx DMA Handler
void DMA1_Channel4_IRQHandler(void)
{
    uartPort_t *s = &uartPort1;
    DMA_ClearITPendingBit(DMA1_IT_TC4);
    DMA_Cmd(s->txDMAChannel, DISABLE);

    if (s->port.txBufferHead != s->port.txBufferTail)
        uartStartTxDMA(s);
    else
        s->txDMAEmpty = true;
}

Esempio n. 5

File: serial_uart_stm32f30x.c Progetto: rayone/betaflight-1

static void handleUsartTxDma(dmaChannelDescriptor_t* descriptor)
{
    uartPort_t *s = (uartPort_t*)(descriptor->userParam);
    DMA_CLEAR_FLAG(descriptor, DMA_IT_TCIF);
    DMA_Cmd(descriptor->channel, DISABLE);

    if (s->port.txBufferHead != s->port.txBufferTail)
        uartStartTxDMA(s);
    else
        s->txDMAEmpty = true;
}

Esempio n. 6

File: uart.c Progetto: CamBl98/afrodevices

void uartWrite(serialPort_t * s, uint8_t ch)
{
    s->txBuffer[s->txBufferHead] = ch;
    s->txBufferHead = (s->txBufferHead + 1) % s->txBufferSize;

    if (s->txDMAChannel) {
        if (!(s->txDMAChannel->CCR & 1))
            uartStartTxDMA(s);
    } else {
        USART_ITConfig(s->USARTx, USART_IT_TXE, ENABLE);
    }
}

Esempio n. 7

File: serial_uart.c Progetto: Sil20/cleanflight

void uartWrite(serialPort_t *instance, uint8_t ch)
{
    uartPort_t *s = (uartPort_t *)instance;
    s->port.txBuffer[s->port.txBufferHead] = ch;
    if (s->port.txBufferHead + 1 >= s->port.txBufferSize) {
        s->port.txBufferHead = 0;
    } else {
        s->port.txBufferHead++;
    }

    if (s->txDMAChannel) {
        if (!(s->txDMAChannel->CCR & 1))
            uartStartTxDMA(s);
    } else {
        USART_ITConfig(s->USARTx, USART_IT_TXE, ENABLE);
    }
}

Esempio n. 8

File: serial_uart_hal.c Progetto: rotcehdnih/betaflight

void uartWrite(serialPort_t *instance, uint8_t ch)
{
    uartPort_t *s = (uartPort_t *)instance;
    s->port.txBuffer[s->port.txBufferHead] = ch;
    if (s->port.txBufferHead + 1 >= s->port.txBufferSize) {
        s->port.txBufferHead = 0;
    } else {
        s->port.txBufferHead++;
    }

    if (s->txDMAStream) {
        if (!(s->txDMAStream->CR & 1))
            uartStartTxDMA(s);
    } else {
        __HAL_UART_ENABLE_IT(&s->Handle, UART_IT_TXE);
    }
}