# EMC3380 Firmware Download

#1. Description of Working Mode

Module Working Mode	PB1（BOOT） -Pin37	PB23（status） -Pin5	PA7（LOG-TX） -PIN19
Normal	1	No Detection	1
ATE	0	1	No Detection
QC	0	0	No Detection
ImageTool-download	1	1	0
jlink-download	No Detection	No Detection	No Detection

#2. Fixture Diagram

Explanation:

The upper dial button in the red box is status, and the lower dial button is boot. The dial button on the left indicates a low pull and on the right indicates a high pull.
Virtual two serial ports on the computer through a USB cable, corresponding to the user serial port and debug serial port of the module.

#3. Burning Instruction

#3.1. Jlink Burning

#3.1.1. Wiring Diagram

#3.1.2. Software and Configuration Reference

Get more help,please refer to: Common Tools and Documents.

#3.1.3. Software Usage

Jlink burning tool combined with mflash software.

#3.2. Image-tool Burning

#3.2.1. Wiring Diagram

#3.2.1 Software Download

Image-tool donwload: 📎MX131x烧录工具.zip

#3.2.2 Trigger Method

1. Debug TX pull down and power on

2. Restore the connection between debug TX and TTL small board

#3.2.3 Buning Interface

Select Chip 8721D

#4. QC

#4.1. Wiring Diagram

#4.2. Confirm firmware

By comparing the printed information, it is used to determine whether the firmware burned is correct and whether the RF is working properly.

#4.3. Trigger Mothod

Pull down the Boot pin and Status pin, with a baud rate of 115200 for both user and debug serial ports.

#4.4. Log Demo

==== MXCHIP Manufacture Test ====
Serial Number: 0000.0000.A225
App CRC: 7DE7
Bootloader Verson: Bootloader
Library Version: v6.0-20-g3dd9912
APP Version: MXOS OS at_basic_2.2.5, build at 18:59:33 Feb 19 2020
Driver: mx3380-x
MAC: B0-F8-93-84-FF-4B
Local Bluetooth Address: B0-F8-93-00-A8-67
BLE scan complete
  ADDR: 7b:9c:fc:a2:f0:c3, RSSI: -100
  ADDR: 76:da:11:14:c5:47, RSSI: -104
Scan AP Success:
  SSID: mxchip-guest, RSSI: -66
  SSID: mxchip-office, RSSI: -67
  SSID: mxchip-office, RSSI: -74
  SSID: mxchip-guest, RSSI: -78
  SSID: Tenda_908020_5G, RSSI: -81
  SSID: mxchip-office, RSSI: -82
  SSID: mxchip-guest, RSSI: -82
  SSID: snowyang_5G, RSSI: -86
  SSID: test_zhy, RSSI: -92
  SSID: ABCDEFG, RSSI: -94
  SSID: Xiaomi_bat111, RSSI: -94
  SSID: mxchip-office, RSSI: -96
  SSID: , RSSI: -97
  SSID: mxchip-guest, RSSI: -98
  SSID: Tenda_908020, RSSI: -107
  SSID: , RSSI: -108
  SSID: mxchip-office, RSSI: -109
  SSID: mxchip-guest, RSSI: -109
  SSID: mxchip-guest, RSSI: -110
  SSID: mxchip-office, RSSI: -111
  SSID: , RSSI: -111

#5. ATE Mode

ATE mode is only used during module production testing and is not described here.

#Update Record

Version	Update	Date
V1.0	Initial Version	2020/10/20
V1.1	Added working mode instructions	2021/2/25
V1.2	Add wiring diagram	2021/12/13

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