Howdy,
I have a JLink Plus and Edu that are behaving differently with STM32G474RE Nucelo boards and the issue appeared on Monday. The Plus has firmware from January 30th, 2023 and the Edu has firmware from January 24th, 2024. I can use JLinkExe (v7.94b) and the Plus to connect to the STM32 using SWD. When trying the same approach with the Edu, the response is:
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The development computer is a Macbook Pro with an M2. Is there a way to roll-back firmware in JLink Confuration to try and troubleshoot if the firmware is the issue or the device itself? Please let me know if there is other information I can provide.
Thanks in advance.
I have a JLink Plus and Edu that are behaving differently with STM32G474RE Nucelo boards and the issue appeared on Monday. The Plus has firmware from January 30th, 2023 and the Edu has firmware from January 24th, 2024. I can use JLinkExe (v7.94b) and the Plus to connect to the STM32 using SWD. When trying the same approach with the Edu, the response is:
Source Code
- SEGGER J-Link Commander V7.94b (Compiled Dec 13 2023 17:01:30)
- DLL version V7.94b, compiled Dec 13 2023 17:01:20
- Connecting to J-Link via USB...O.K.
- Firmware: J-Link EDU Mini V1 compiled Jan 24 2024 12:08:08
- Hardware version: V1.00
- J-Link uptime (since boot): 0d 00h 02m 11s
- S/N: 801022839
- License(s): FlashBP, GDB
- USB speed mode: Full speed (12 MBit/s)
- VTref=3.298V
- Type "connect" to establish a target connection, '?' for help
- J-Link>connect
- Please specify device / core. <Default>: STM32G474RE
- Type '?' for selection dialog
- Device>
- Please specify target interface:
- J) JTAG (Default)
- S) SWD
- T) cJTAG
- TIF>s
- Specify target interface speed [kHz]. <Default>: 4000 kHz
- Speed>100
- Device "STM32G474RE" selected.
- Connecting to target via SWD
- InitTarget() start
- SWD selected. Executing JTAG -> SWD switching sequence.
- Error: Failed to initialized DAP.
- Can not attach to CPU. Trying connect under reset.
- SWD selected. Executing JTAG -> SWD switching sequence.
- Error: Failed to initialized DAP.
- Connecting to CPU via connect under reset failed.
- InitTarget() end - Took 424ms
- Connect failed. Resetting via Reset pin and trying again.
- InitTarget() start
- SWD selected. Executing JTAG -> SWD switching sequence.
- Error: Failed to initialized DAP.
- Can not attach to CPU. Trying connect under reset.
- SWD selected. Executing JTAG -> SWD switching sequence.
- Error: Failed to initialized DAP.
- Connecting to CPU via connect under reset failed.
- InitTarget() end - Took 426ms
- Cannot connect to target.
Thanks in advance.