V2.0
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@@ -31,7 +31,7 @@ int main(void)
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{
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GPIO_InitTypeDef GPIO_InitStructure={0};
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SystemCoreClockUpdate();
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NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);
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NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
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USART_Printf_Init(115200);
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printf("SystemClk:%d\r\n",SystemCoreClock);
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printf( "ChipID:%08x\r\n", DBGMCU_GetCHIPID() );
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