Topic : Code size debug limit at 8kB of code

Forum : ARM

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January 18, 2010 - 1:09pm
Guest

I've just encountered a problem with my software that occupies only 8kB of FLASH. My project uses STM32F103C8T6 device (64KB of FLASH) There is one constant in my software that must be placed at address 0x800FFFE. When I start debugging session the debugger dsiplays "Code size limit exceeded" despite the fact the software doesn't exceed 32K debug limit.
When I place the constant at other address (that is, at the addres that doesn't exceed 32KB boundary) the debugger works ok. Is it possible to solve the problem ?
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January 18, 2010 - 2:49pm
Raisonance Support Team

Hi,

The "32K limit" means that you cannot use addresses higher than 0x8000 + . The fact that you don't use a part of the lower addresses does not allow you to use the higher addresses instead.

If you need to use addresses higher than 32K, you have to purchase the PRO version of the RLink, or develop without debugging. You could move the variable to a lower address when you want to debug and then put it back in the higher address when going to production, but that might increase the risk of bugs in the production version.

Best Regards,

Vincent