J-Link device not found

[rohit269]

I am trying to set up a debug environment for the ESP32-WROOM-32 adafruit devboard with a Segger J-Link on Linux. I have followed the steps using the following links:
1. https://esp-idf.readthedocs.io/en/v2.0/openocd.html
2. JTAG and ESP32 connection: https://gojimmypi.blogspot.com/2017/03/ ... esp32.html

I have doubled checked the connections. I am powering the board via USB.

I get the following error on the terminal.

esp_jlink.png (230.83 KiB) Viewed 3899 times

Please help. Thanks.

[ESP_Angus]

Hi rohit,

This looks like it may be more of an issue on the Linux system than in openocd or ESP-IDF. If you look at the kernel log with a command line "dmesg", do you see any message from connecting the J-Link? Do you see the J-Link in the output of the command "lsusb"?

Angus