How to re-program wifi device: ESP-WROOM-02

Revision as of 17:48, 17 May 2017 by Dongliu (Talk | contribs)

1. Please short RFS JP2 pin2-pin3.

2. In Quartus Project top file, connect UART2USB and WIFI_UART0.

assign WIFI_UART0_TX = UART2USB_RX;
assign UART2USB_TX = WIFI_UART0_RX;
assign UART2USB_RTS = WIFI_UART0_CTS;
assign WIFI_UART0_RTS = UART2USB_CTS;

assign WIFI_RST_n = KEY[0];
assign WIFI_EN = 1'b1;

3. Compile and download .sof file.

4.Run ESPFlashDownloadTool_v3.4.4.exe，and select “ESP8266 DownloadTool”

5.For flash layout, refer to： ESP8266_NONOS_SDK-2.1.0\bin\at\README.md

6. Refer to below screenshots for the rest settings(COM port select RFS UART COM port):

7. Click START，wait for UART synchronization:

8. Press Key[0] to synchronize:

9. Download finished:

download tool: https://espressif.com/en/support/download/other-tools select Flash Download Tools V3.4.4 (ESP8266 & ESP32)