Search Results

This design is not based on an eval board. Let me clarify what is happening step by step. 1. Board is built on an SMT line, checked and verified for manufacturing problems etc.. 2. The SWD interface of the micro is then connected to the J-link probe. I execute the J-link commander script, as mentioned earlier, to program the board. In one out of three boards the board does not come out of reset, I have no idea what address or instruction is executed, as far as I can tell nothing is happening. Wh…

Does anyone have any suggestions, please? I can see other people had similar issues with other CPUs so there must be some bug somewhere.

Hi Niklas, In both cases roughly every 3rd try get's stuck, but only if the board is blank, i.e. never programmed before, or erased prior to programming.

I have done a little probing on the reset line and I am not quite sure what is going on with my j-link. I have run this commander script to stimulate the reset line. Source Code (9 lines) std_reset.png is a screenshot from my logic analyzer, you can clearly see the approx. 10ms delay caused by the r0/r1 commands. But if we zoom in we can see quite a bit of mess caused by the earlier reset commands on the reset_mess.png attachment. Note: it seems the mess is not related to the first reset command…

Hi, I am using J-link Base model to program a board based on Atmel ATSAM4E8C Cortex device. In roughly 1/3 cases board is stuck in reset after programming and it seems the only way to make it run is to power cycle the PCB. I use J-link commander in batch mode to perform the flashing process and it does not seem to report any problems when this reset issue happens. Below is the source of the commander script I am using. Source Code (7 lines) I tried adding: Source Code (1 line) after the device c…