10 years, 6 months ago.

Cannot access memory under Keil debug

Hi,

I have a Nucleo board with STM32F103 processor. I can use the on-line compiler, and export the result to Keil 5.10.0.2. I can compile it there, and download it to the board with ST-Link and it runs. Code is simple:

include "mbed.h" DigitalOut myled(LED1);

int main() { while(1) { myled = 1; LED is ON wait(0.2); 200 ms myled = 0; LED is OFF wait(1.0); 1 sec } }

The problem is that I cannot use the Keil debugger, despite having checked that it uses ST-LInk (not the old version). I just get the 'cannot access memory' message, with no addresses given, as soon as it gets to 'main' (address 0x08000874 according to the dissassembler). When I quit the debugger, the application runs OK. Error messages look like this:

• Restricted Version with 32768 Byte Code Size Limit
• Currently used: 6168 Bytes (18%)

Cannot access Memory Cannot access Memory Cannot access Memory Cannot access Memory Cannot access Memory

Any ideas, anyone. I am up to version 'V2.J20.M4 JTAG+MBed Debugger' of the hardware. I assume this supports SWD?

Thanks

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