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interesting observation: If I set Trace for all 4 data pins in Ozone I get persistent Mem Faults and Usage Faults that resist being explained: Ozon Trace Settings Trace Source: Trace Pins Timestamps: X CPU Frequency: 300 MHz Trace Port Width: 4 bit Maximum Instruction Count: 10M Trace Timing: Default If I leave this at the 2 bit setting (no other changes), everything runs fine. If I slow the micro down the 150 MHz, I can get 4 bits .. might see if I can get a scope onto the TRACE lines, maybe th…
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right .. it looks like this: R800 pulls the RXER line from the PHY daughterboard to ground. This is RXER/QWF on the daughterboard and PD07 for the micro. PD07 doubles as RXER from the PHY and TRACE3 After noticing that Ozone happened to work when I selected Trace = 2 bits .. I chased each of the TRACE data pins out on the schematic. Just to be annoying, you have to disconnect the debugger, set the number of pins and then reconnect! I'd tried both 1 and 2 bits before but obviously didn't disconne…
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I've done a cleanup (there were a few J-Link versions lying around on my PC) and installed the latest J-Link pack - V8.12f J-Link Control Panel still shows J-Link Bootloader: (FW returned invalid version) and I still get Trace.SetPoint (TP_OP_START_TRACE, "main.c:53"); J-Link API call failed: set tracepoint at 400338 when trying to set a Trace Startpoint. For what it's worth, here's the Ozone Console contents: Disabled output of control characters SEGGER Ozone - The J-Link Debugger V3.38c J-Link…
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extra info: I'm trying this in Windows now .. When I try to set a Tracepoint (Start), the console shows: Trace.SetPoint (TP_OP_START_TRACE, "main.c:53"); J-Link API call failed: set tracepoint at 400338 The J-Link control panel shows: Process: /home/andrewkelly/Downloads/tools/Ozone_Linux_V338_x86_64/Ozone Module: /home/andrewkelly/Downloads/tools/Ozone_Linux_V338_x86_64/Lib/libjlinkarm.so.8.10.0 Version: V8.10, compiled Sep 25 2024 14:17:54 J-Link: SEGGER J-Trace PRO V2.0, SN=752001071 J-Link F…
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I tried to get the example for the non Ultra board going with no success. I'm using a J-Trace Pro connected using the coresight 20 connector. I've tried this combo with Segger's stm32f407 reference board and TRACE works. The Xplained Ultra has the 20 pin coresight header already installed. In embedded Studio, I can single step etc but there are no Trace lights on the JTrace at all - emStudio's Execution Trace window shows "Trace disabled". When I select "debug in Ozone" and select trace Source =…