temp=10行被取消注释面包板LED不亮可能是什么问题？

我正在使用 NUCLEO-L476RG 开发板，我正在学习为 STM32 系列编写 GPIO 驱动程序我正在实现一个简单的逻辑，我需要在按下按钮时打开 LED。
我有一个奇怪的问题： 当 temp=10 行被注释时，面包板 LED 亮起，当 temp=10 行被取消注释时它不会亮起。
可能是什么问题？
更改线路位置后问题没有解决
与面包板的连接如下图所示，我没有在我的代码中配置任何时钟源，这意味着它将采用默认时钟（4MHz 的 MSI）进行操作。我使用 Mini USB 为它供电

#include
#include "stm32l476xx.h"
#include "stm32l476xx_gpoi_driver.h"
#if !defined(__SOFT_FP__) && defined(__ARM_FP)
#warning "FPU is not initialized, but the project is compiling for an FPU. Please initialize the FPU before use."
#endif
#define delay() {;}
//#define delay() for(uint32_t i=0; i<=50000; i++);
int main(void)
{
GPIO_Handle_t NucleoUserLED,NucleoUserPB,BreadBoardLED,BreadBoardPB;
volatile uint8_t inputVal,BBinpVal;
uint32_t temp;
//User green led in the nucleo board connected to PA5
NucleoUserLED.pGPIO = GPIOA;
NucleoUserLED.GPIO_Pin_Cfg.GPIO_PinNumber = GPIO_PIN_5;
NucleoUserLED.GPIO_Pin_Cfg.GPIO_PinMode = GPIO_MODE_OP;
NucleoUserLED.GPIO_Pin_Cfg.GPIO_PinPuPdControl = GPIO_IP_NO_PUPD;
NucleoUserLED.GPIO_Pin_Cfg.GPIO_PinOpType = GPIO_OP_TYPE_PP;
//User blue button in the nucleo connected to PC13
NucleoUserPB.pGPIO = GPIOC;
NucleoUserPB.GPIO_Pin_Cfg.GPIO_PinNumber = GPIO_PIN_13;
NucleoUserPB.GPIO_Pin_Cfg.GPIO_PinMode = GPIO_MODE_IP;
NucleoUserPB.GPIO_Pin_Cfg.GPIO_PinPuPdControl = GPIO_IP_NO_PUPD;
//User led in the bread board connected to PC8
BreadBoardLED.pGPIO = GPIOC;
BreadBoardLED.GPIO_Pin_Cfg.GPIO_PinNumber = GPIO_PIN_8;
BreadBoardLED.GPIO_Pin_Cfg.GPIO_PinMode = GPIO_MODE_OP;
BreadBoardLED.GPIO_Pin_Cfg.GPIO_PinPuPdControl = GPIO_IP_NO_PUPD;
BreadBoardLED.GPIO_Pin_Cfg.GPIO_PinOpType = GPIO_OP_TYPE_PP;
//User DPDT connected in the breadboard connected to PC6
BreadBoardPB.pGPIO = GPIOC;
BreadBoardPB.GPIO_Pin_Cfg.GPIO_PinNumber = GPIO_PIN_6;
BreadBoardPB.GPIO_Pin_Cfg.GPIO_PinMode = GPIO_MODE_IP;
BreadBoardPB.GPIO_Pin_Cfg.GPIO_PinPuPdControl = GPIO_IP_PU;
GPIO_PeriClkCtrl(GPIOA, ENABLE);
GPIO_PeriClkCtrl(GPIOC, ENABLE);
GPIO_Init(&NucleoUserLED);
GPIO_Init(&NucleoUserPB);
GPIO_Init(&BreadBoardLED);
GPIO_Init(&BreadBoardPB);
while(1)
{
/*****************************************************************
* Controlling the IO present in the nucleo board *
*****************************************************************/
inputVal = GPIO_ReadInputPin(NucleoUserPB.pGPIO, NucleoUserPB.GPIO_Pin_Cfg.GPIO_PinNumber);
BBinpVal = GPIO_ReadInputPin(BreadBoardPB.pGPIO, BreadBoardPB.GPIO_Pin_Cfg.GPIO_PinNumber);
if(inputVal == 0)
{
GPIO_ToggleOutputPin(NucleoUserLED.pGPIO, NucleoUserLED.GPIO_Pin_Cfg.GPIO_PinNumber);
}
/*****************************************************************
* Controlling the IO present in the bread board *
*****************************************************************/
temp = 10;
if (BBinpVal == 0 )
{
GPIO_WriteOutputPin(BreadBoardLED.pGPIO, BreadBoardLED.GPIO_Pin_Cfg.GPIO_PinNumber, 1);
}
else
{
GPIO_WriteOutputPin(BreadBoardLED.pGPIO, BreadBoardLED.GPIO_Pin_Cfg.GPIO_PinNumber, 0);
}
}
return 0;
}