About Alex R

Alex R · 2025-03-04

Hi,Setup:https://github.com/Open-CMSIS-Pack/STM32U5xx_DFP/blob/main/CMSIS/Debug/STM32U535_545_575_585_59x_5Ax.dbgconfCompiler: ARM Keil MDKv5 version 5.41When using Embedded Trace (Sync Trace with 4-bit) and the Debug Description file (.dbgconf Confi...

Alex R · 2024-07-01

Hi,I'm developing a new application for the STM32U5A5 processor. The application runs correctly if I program (flash) and debug with the JTAG/SWD debugger. Even after disconnecting the debugger, the application still runs, and it is possible to re-pro...

Alex R · 2018-03-22

Posted on March 22, 2018 at 21:56Hi, We are evaluating the use of the BT Module SPBT3.0DP1 on one of our devices.We are trying to configure the PIN to connect to a legacy device, that already has a predetermined PIN code that uses letters (lower and...

Alex R · 2025-03-11

Hi I submitted this issue to ARM directly, and they were able to reproduce and fix the issue.The issue is in the PACK files provided by ARM to support the U5 processors: Keil.STM32U5xx_DFP.pdsc for STM32U5A5 DFP v3.0.0 “From Andreas Barth - Arm Partn...

Alex R · 2025-03-06

@Chiheb_M: Thanks. The file is indeed provided by Keil. However, it is not working correctly, and do not configure the trace pins for trace alternate function. The reason for asking in this forum is to see of other members have had similar issues en...

Alex R · 2024-07-02

Hi,After further analysis, it was determined that the application was indeed running, but was being blocked by a trace library (Percepio's Tracealyzer) when the debugger was not connected/enabled, or after power cycle. Disabling the trace library all...

Alex R · 2019-07-04

Additional questions:Is Vpp valid during programming? Could it be that when using the timers, other external peripherals are enable and Vpp is not valid.Is the programming sequence followed? Note that Flash read will stall during Flash operations Are...

Alex R · 2019-07-04

Use a GPIO pin to mark the beginning and the end of the callback function. This way you can measure how long that routine takes, and the relation of the execution of the callback routine with respect to the SPI transactions. Most likely your SPI tran...

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Open CMSIS Pack Debug Configuration for STM32U5xx with Keil doesn't enable Trace Signals

STM32U5A5 application doesn't run after power cycle but runs from debugger after flashing

Cannot setup capital letters as PIN for Bluetooth pairing on SPBT3.0DP1 BT Mod

Re: Open CMSIS Pack Debug Configuration for STM32U5xx with Keil doesn't enable Trace Signals

Re: Open CMSIS Pack Debug Configuration for STM32U5xx with Keil doesn't enable Trace Signals

Re: STM32U5A5 application doesn't run after power cycle but runs from debugger after flashing

Re: Timer Configuration causes Flash Error

Re: STM32F7 SPI Runtime OR Memory access problems