1, the use of spi_flash_write function write speed was 0.4MB / S, how to improve 8266 flash write speed.
2, spi_flash_write function to improve the source code?
c ...
D:/esp/esp-iot-solution-usb-add_usb_solutions/components/usb/esp_usbh_cdc/esp_usbh_cdc.c: In function \'_usb_get_dev_desc\':
D:/esp/esp-iot-solution-usb-add_usb_solutions/components/usb/esp ...