實驗現象及操做說明:oop
一、將升級文件拷入U盤system文件夾中,經過U盤轉接線將U盤鏈接到iCore4 USB OTG接口。spa
二、燒寫程序成功,綠色ARM·LED燈點亮,三色FPGA·LED燈循環點亮,燒寫失敗,若是掛載SD卡失敗,紅燈快閃,若是打開文件失敗,藍燈快閃,讀取文件指針移動失敗,白燈點亮,升級失敗,紅燈慢閃。指針
核心代碼:code
int main(void) { /* USER CODE BEGIN 1 */ /* USER CODE END 1 */ /* MCU Configuration----------------------------------------------------------*/ /* Reset of all peripherals, Initializes the Flash interface and the Systick. */ HAL_Init(); /* USER CODE BEGIN Init */ /* USER CODE END Init */ /* Configure the system clock */ SystemClock_Config(); /* USER CODE BEGIN SysInit */ /* USER CODE END SysInit */ /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_USB_HOST_Init(); MX_FATFS_Init(); /* USER CODE BEGIN 2 */ /* USER CODE END 2 */ /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { /* USER CODE END WHILE */ MX_USB_HOST_Process(); /* USER CODE BEGIN 3 */ } /* USER CODE END 3 */ }
源代碼下載連接:htm
連接:http://pan.baidu.com/s/1o8Pxpwu 密碼:d4z4blog
iCore4連接:接口