@@ -164,7 +164,7 @@ void rt_hw_us_delay(rt_uint32_t us)
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/**
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* This function will initial STM32 board.
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*/
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RT_WEAK void rt_hw_board_init(void)
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void rt_hw_board_init(void)
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{
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#ifdef BSP_SCB_ENABLE_I_CACHE
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/* Enable I-Cache---------------------------------------------------------*/
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@@ -422,10 +422,6 @@ static void dma_recv_isr(struct rt_serial_device *serial, rt_uint8_t isr_flag)
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static void uart_isr(struct rt_serial_device *serial)
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{
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struct stm32_uart *uart;
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#ifdef RT_SERIAL_USING_DMA
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rt_size_t recv_total_index, recv_len;
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rt_base_t level;
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#endif
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RT_ASSERT(serial != RT_NULL);
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uart = rt_container_of(serial, struct stm32_uart, serial);
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