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//库函数配置
UART1_DeInit();
UART1_Init((u32)1000000, UART1_WORDLENGTH_8D, UART1_STOPBITS_1,
UART1_PARITY_NO , UART1_SYNCMODE_CLOCK_DISABLE , UART1_MODE_TXRX_ENABLE);
UART1_ITConfig(UART1_IT_RXNE_OR,ENABLE );
UART1_Cmd(ENABLE );
//寄存器配置
//UART1->CR1 |= 0X00;
//UART1->CR3 |= 0X00;
UART1->CR2 = 0X2C;
UART1->BRR2 = 0x00;
UART1->BRR1 = 0x01; //1Mbps
UART1->CR1 &= (uint8_t)(~0X20);//enable uart1
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