改为中断来低电平触发发送当前扫描数据，3s内扫描不到的会退出，串口来55 AA 75 70 64 61 74 65，进入升级模式

WXK

2025-04-24 ae079c1fc5d990ba55714d4b3a51b19f96edaec4

 01_SDK/modules/hal/panchip/panplat/pan1070/bsp/peripheral/src/pan_hal_dmac.c

@@ -19,8 +19,8 @@
    .TransferType    = DMAC_TransferType_Per2Mem,
    // Destination config (Memory)
    .AddrChangeDst   = DMAC_AddrChange_Increment,
    .BurstLenDst     = DMAC_BurstLen_4,
    .DataWidthDst    = DMAC_DataWidth_32,
    .BurstLenDst     = DMAC_BurstLen_8,
    .DataWidthDst    = DMAC_DataWidth_8,
    .HandshakeDst    = DMAC_Handshake_Default,
    // Source config (Peripheral)
    .AddrChangeSrc   = DMAC_AddrChange_NoChange,
@@ -103,11 +103,10 @@
    /*set tx dma channel control&config register*/
    .AddrChangeDst   = DMAC_AddrChange_NoChange,
    .AddrChangeSrc   = DMAC_AddrChange_Increment,
    .BurstLenDst     = DMAC_BurstLen_4,
    .BurstLenSrc     = DMAC_BurstLen_4,
    .BurstLenDst     = DMAC_BurstLen_1,
    .BurstLenSrc     = DMAC_BurstLen_1,
    .DataWidthDst    = DMAC_DataWidth_8,
    // .DataWidthDst    = DMAC_DataWidth_16,
    .DataWidthSrc    = DMAC_DataWidth_32,
    .DataWidthSrc    = DMAC_DataWidth_8,
    .TransferType    = DMAC_TransferType_Mem2Per,
    .FlowControl     = DMAC_FlowControl_DMA,
    .HandshakeDst    = DMAC_Handshake_Hardware,
@@ -121,11 +120,10 @@
    /*set tx dma channel control&config register*/
    .AddrChangeDst   = DMAC_AddrChange_NoChange,
    .AddrChangeSrc   = DMAC_AddrChange_Increment,
    .BurstLenDst     = DMAC_BurstLen_4,
    .BurstLenSrc     = DMAC_BurstLen_4,
    //.DataWidthDst    = DMAC_DataWidth_8,
    .BurstLenDst     = DMAC_BurstLen_1,
    .BurstLenSrc     = DMAC_BurstLen_1,
    .DataWidthDst    = DMAC_DataWidth_16,
    .DataWidthSrc    = DMAC_DataWidth_32,
    .DataWidthSrc    = DMAC_DataWidth_16,
    .TransferType    = DMAC_TransferType_Mem2Per,
    .FlowControl     = DMAC_FlowControl_DMA,
    .HandshakeDst    = DMAC_Handshake_Hardware,
@@ -143,8 +141,7 @@
    .AddrChangeSrc   = DMAC_AddrChange_NoChange,
    .BurstLenDst     = DMAC_BurstLen_4,
    .BurstLenSrc     = DMAC_BurstLen_4,
    //.DataWidthDst    = DMAC_DataWidth_8,
    .DataWidthDst    = DMAC_DataWidth_32,
    .DataWidthDst    = DMAC_DataWidth_8,
    .DataWidthSrc    = DMAC_DataWidth_8,
    .TransferType    = DMAC_TransferType_Per2Mem,
    .FlowControl     = DMAC_FlowControl_DMA,
@@ -180,44 +177,61 @@
    NVIC_EnableIRQ(DMA_IRQn);
}

void DMA_IRQHandler(void)
__WEAK void DMA_IRQHandlerOverlay(void)
{
    int16_t remaind_cnt;

    /* Handle DMA Transfer Complete Interrupt */
    if (DMAC_CombinedIntStatus(DMA, DMAC_FLAG_MASK_TFR))
    {
        for (int i = 0; i < 3; i++)
        for (int i = 0; i < DMAC_CHANNEL_NUMS; i++)
        {
            if (DMAC_IntFlag(DMA, i, DMAC_FLAG_INDEX_TFR))
            {
                DMAC_Channel_Array[i].XferFlag = true;
                DMAC_ClrIntFlag(DMA, i, DMAC_FLAG_INDEX_TFR);

//                DMAC_Channel_Array[i].StopFlag =true;
                /* Release DMA Rx channel */
                DMAC_ReleaseChannel(DMA, i);

                switch (DMAC_Channel_Array[i].PeriMode)
                {
                case DMAC_Peri_UART:
                    if (DMAC_Channel_Array[i].CallbackUart != NULL)
                    DMAC_Channel_Array[i].XferCount += DMAC_GetXferredBlockCount(DMA, i);
                    remaind_cnt = DMAC_Channel_Array[i].XferSize - DMAC_Channel_Array[i].XferCount;
                    if (remaind_cnt > 0)
                    {
                        DMAC_Channel_Array[i].CallbackUart(UART_CB_FLAG_DMA, (uint8_t *)DMAC_Channel_Array[i].pBuffPtr,
                                                           DMAC_Channel_Array[i].XferSize);
                        if (remaind_cnt < 1024)
                        {
                            DMAC_ContinueChannel(DMA, i, remaind_cnt);
                        }
                        else
                        {
                            DMAC_ContinueChannel(DMA, i, 1023);
                        }
                    }
                    else
                    {
                        if (DMAC_Channel_Array[i].CallbackUart != NULL)
                        {
                            if (DMAC_Channel_Array[i].ConfigTmp.TransferType == DMAC_TransferType_Per2Mem)
                            {
                                ((HAL_UART_HandleTypeDef*)DMAC_Channel_Array[i].periph)->isRxBusy = false;
                            }
                            else if (DMAC_Channel_Array[i].ConfigTmp.TransferType == DMAC_TransferType_Mem2Per)
                            {
                                ((HAL_UART_HandleTypeDef*)DMAC_Channel_Array[i].periph)->isTxBusy = false;
                            }
                            DMAC_Channel_Array[i].CallbackUart(UART_CB_FLAG_DMA, (uint8_t *)DMAC_Channel_Array[i].pBuffPtr,
                                                               DMAC_Channel_Array[i].XferCount);
                        }
                    }
                    break;
                case DMAC_Peri_I2C:
                    DMAC_ReleaseChannel(DMA, i);
                    if (DMAC_Channel_Array[i].CallbackI2c != NULL)
                    {
                        DMAC_Channel_Array[i].CallbackI2c(I2C_CB_FLAG_DMA, (uint8_t *)DMAC_Channel_Array[i].pBuffPtr,
                                                          DMAC_Channel_Array[i].XferSize);
                    }
                case DMAC_Peri_ADC:
                    if (DMAC_Channel_Array[i].CallbackAdc!= NULL)
                    {
                        DMAC_Channel_Array[i].CallbackAdc(ADC_CB_FLAG_DMA, DMAC_Channel_Array[i].pBuffPtr,
                                                          DMAC_Channel_Array[i].XferSize);
                    }
                case DMAC_Peri_SPI:
                    DMAC_ReleaseChannel(DMA, i);
                    if (DMAC_Channel_Array[i].CallbackSpi!= NULL)
                    {
                        DMAC_Channel_Array[i].CallbackSpi(SPI_CB_FLAG_DMA, (uint16_t *)DMAC_Channel_Array[i].pBuffPtr,
@@ -285,3 +299,11 @@
    }
}

void DMA_IRQHandler(void)
{
    PAN_IO_TIMING_TRACK_LEVEL(CONFIG_TRACK_PIN_DMA_IRQ, 1);

    DMA_IRQHandlerOverlay();

    PAN_IO_TIMING_TRACK_LEVEL(CONFIG_TRACK_PIN_DMA_IRQ, 0);
}