由于核心板上的LED输出没有引出来,所以我将USERKEY的低四位按键改为输出控制继电器,具体为:
g_pGPIOReg->GPNCON |= 0x1111U;//输出
g_pGPIOReg->GPNPUD &= ~(0x1<<0); ///< Pull-Up/Down Disable
g_pGPIOReg->GPNPUD &= ~(0x1<<1); ///< Pull-Up/Down Disable
g_pGPIOReg->GPNPUD &= ~(0x1<<2); ///< Pull-Up/Down Disable
g_pGPIOReg->GPNPUD &= ~(0x1<<3); ///< Pull-Up/Down Disable
g_pGPIOReg->GPNDAT &= ~0x0FU; //初始都输出低电平
,现在在上位机应用程序调用时,在初始化驱动一段时间后,板子重启了,是咋回事呢?郁闷啊