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发表于 2026-4-26 13:51:39
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显示全部楼层
for (volatile uint32_t i = 0; i < 366666 * 50; ++i) __NOP();
*((volatile uint32_t *)0x40000190) = 0;
PORT_Init(PORTB, PIN12, PORTB_PIN12_UART0_RX, 1); //GPIOB.12配置为UART0输入引脚
PORT_Init(PORTB, PIN14, PORTB_PIN14_UART0_TX, 0); //GPIOB.14配置为UART0输出引脚
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