I have a question regarding how to automatically point to a specific device in a JTAG daisy chain.
My HW configuration is as follows. Let’s say four types of cards, each one with a single microcontroller.
I am always going to have a single board for each type in my setup.
Debugger/programmer: Segger J-Link
uC: STM32H7
My problem is, I need to have a fixed configuration in my STM32 Cube Ide Debug configuration so I can point to the type of board I want to program/debug.
This would be an easy one if all the boards are always present and powered. But let’s consider the following cases:
CASE 1: I need to debug Device type C but Device type B is not present.
Although my HW has ways to bypass the device and keep the loop alive, I’d need to recalculate the tap number and IDpre of Device C.
CASE 2: I need to reach Device B for debugging/programming, but I replaced it with another different board. (other SN, other uC, different IDCODE).
So, I am looking for the kind of solution in which I can identify the board by type, not by IDCODE.
Also, I need to find a solution for the CubeIDE to look for the board type using a script before deciding the JTAG parameters it’s going to use for debug.
Any help will be much appreciated.
