| | |
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| | | |
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| | | //uint8_t overrun_flag=0; |
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| | | //uint16_t t1,t2,t3,t4; |
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| | | |
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| | | void UART0_CheckReceive(void) |
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| | | { uint32_t cndtr=0; |
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| | | int32_t DMACnt = 0; |
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| | | int32_t MaxDataLen = EUART_RX_BUF_SIZE; |
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| | | cndtr=get_uart0_dma_cndtr(); |
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| | | //缺少check保护 |
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| | | //如果正在往发送队列中添加数据，退出 |
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| | | if(m_bEUARTPushingFrms) |
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| | | return; |
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| | | //判断是否正在Check |
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| | | if(m_bEUARTCheckingRec) |
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| | | return; |
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| | | m_bEUARTCheckingRec = 1; |
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| | | if(cndtr== 0) |
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| | | { |
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| | | m_bEUARTCheckingRec = 0; |
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| | | return; |
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| | | } |
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| | | DMACnt = EUART_RX_BUF_SIZE - cndtr; |
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| | | while( m_EUART_DMA_RXPtr != DMACnt && MaxDataLen > 0) |
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| | | { |
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| | | Usart1ParseDataCallback(m_EUART_DMA_RXBuf[m_EUART_DMA_RXPtr]); |
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| | | //waitusart_timer = tag_frequency*USART_KEEPWAKE_TIME; |
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| | | m_EUART_DMA_RXPtr++; |
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| | | if( m_EUART_DMA_RXPtr >= EUART_RX_BUF_SIZE ) |
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| | | { |
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| | | m_EUART_DMA_RXPtr = 0; |
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| | | } |
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| | | DMACnt = EUART_RX_BUF_SIZE - cndtr; |
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| | | MaxDataLen--; |
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| | | } |
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| | | m_bEUARTCheckingRec = 0; |
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| | | |
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| | | } |
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| | | uint16_t t3; |
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| | | uint32_t cndtr=0; |
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| | | void UART_CheckReceive(void) |
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