MuseLAB ESPLink v1.2 Debug Probe Tool User Guide
- June 9, 2024
- MuseLAB
Table of Contents
MuseLAB ESPLink v1.2 Debug Probe Tool
ESP Link Introduce
ESP Link is a debug tool build for Expressif’s ESP chips made by MuseLab based
on Espressif’s esp-usb-bridge, all Espressif’s ESP chips are supported,
currently supports ESP8266/ESP32/ESP32-S2/ESP32-C3/ESP32-S3 (also can update
firmware to support Espressif’s latest chips), with usb-to-serial (compatible
with traditional use), drag-n-drop program, and jtag debug, made it very
convenient for development and test. .
Features
USB-to-Serial
compatible with the traditional use, can used to program with esptool.py or
monitor the serial output message. examples for reference:
$idf.py -p /dev/ttyACM0 flash monitor
$esptool.py –chip esp32c3 \
-p /dev/ttyACM0 \
-b 115200 \
–before=default_reset \
–after=hard_reset \
–no-stub \
write_flash \
–flash_mode dio \
–flash_freq 80m \
–flash_size 2MB \
0x0 esp32c3/bootloader.bin \
0x8000 esp32c3/partition-table.bin \
0x10000 esp32c3/blink_100.bin
Drag-and-Drop Program
the ESPLink support drag-n-drop program, after power on the board, a virtual
USB Disk named ESPLink will appear, just drag the flash image into the
ESPLink, wait for some seconds, then the ESPLink will automatically complete
the program work. it’s very convenient since it’s no need to rely on external
tools and work well on any platform (Win/Linux/Mac .etc), some typical usage
scenarios: quickly verification, compile on cloud server and program on any
PC, firmware upgrade when used on commercial products .etc
note: the flash image is in uf2 format, can generated with espressif’s
official tool idf.py $idf.py uf2
$cp build/uf2.bin /media/pi/ESPLink/
JTAG Debug
ESPLink support jtag interface to debug the ESP32 series chip, it’s useful for
product developer to fix the bug when system crash, here are the instructions
for reference (target chip is ESP32-S2 here as an example)
Openocd Install
$git clone https://github.com/espressif/openocd-esp32.git
$cd openocd-esp32
$./bootstrap
$./configure
$make -j
$sudo make install
Attach to ESP32-S2
pi@raspberrypi:~/oss/openocd-esp32 $ sudo ./src/openocd -s
/home/pi/oss/openocd- esp32/tcl -f tcl/interface/esp_usb_bridge.cfg -f
tcl/target/esp32s2.cfg Open On-Chip Debugger
v0.11.0-esp32-20220411-5-g03cd2031 (2022-04-25-09:45) Licensed under GNU GPL
v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
Info : only one transport option; autoselect ‘jtag’
Info : esp_usb_jtag: VID set to 0x303a and PID to 0x1002
Info : esp_usb_jtag: capabilities descriptor set to 0x30a
adapter speed: 4000 kHz
Warn : Transport “jtag” was already selected
Info : Listening on port 6666 for tcl connections
Info : Listening on port 4444 for telnet connections
Info : esp_usb_jtag: serial (84F703D20134)
Info : esp_usb_jtag: Device found. Base speed 750KHz, div range 1 to 1
Info : clock speed 750 kHz
Info : JTAG tap: esp32s2.cpu tap/device found: 0x120034e5 (mfg: 0x272
(Tensilica), part: 0x2003, ver: 0x1)
Info : esp32s2: Debug controller was reset.
Info : esp32s2: Core was reset.
Info : starting gdb server for esp32s2 on 3333
Info : Listening on port 3333 for gdb connections
Debug
when attach success, open another ternimal to debug, you can use gdb or
telnet, explained separately as follows
Debug with Gdb
$xtensa-esp32s2-elf-gdb -ex ‘target remote 127.0.0.1:3333’ ./build/blink.elf
(gdb) info reg
(gdb) s
(gdb) continue
Debug with telnet
$telnet localhost 4444
reset
halt
reg
step
resume
Pin Description
Power
GND,3V3,5V
JTAG
TCK,TMS,TDI,TDO
UART
TX,RX
USB-Serial TX and RX
BOOT
set low, and reset the board, then the board will enter to bootloader for
flash program, note that BOOT and RST is controlled by ESPLink USB-Serial DTR
and RTS, compatible with other USB-Serial chip like CP2102 and CH340.
References
- OpenOCD: Bug Reporting
- GitHub - espressif/openocd-esp32: OpenOCD branch with ESP32 JTAG support
- ESPLink/ESPLink-v1.2-1.jpg at master · wuxx/ESPLink · GitHub
- ESPLink/ESPLink-v1.2-2.jpg at master · wuxx/ESPLink · GitHub
- ESPLink/ESPLink-v1.2-4.jpg at master · wuxx/ESPLink · GitHub
- ESPLink/README_v1.0.md at master · wuxx/ESPLink · GitHub
- ESPLink/README_v1.2_cn.md at master · wuxx/ESPLink · GitHub
- GitHub - wuxx/ESPLink: designed for debug Espressif's ESP series chips, include ESP8266/ESP32/ESP32-S2/ESP32-C3/ESP32-S3...
- GitHub - wuxx/ESPLink: designed for debug Espressif's ESP series chips, include ESP8266/ESP32/ESP32-S2/ESP32-C3/ESP32-S3...
- GitHub - wuxx/ESPLink: designed for debug Espressif's ESP series chips, include ESP8266/ESP32/ESP32-S2/ESP32-C3/ESP32-S3...
- GitHub - wuxx/ESPLink: designed for debug Espressif's ESP series chips, include ESP8266/ESP32/ESP32-S2/ESP32-C3/ESP32-S3...
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