Comments (1)
< zippe> If you put the MSP at the bottom of RAM because you think you're being smart and you want stack overflows to give you a
hardfault
23:15 < Tectu> i understand what you mean, but what's MSP?
23:15 < zippe> Then when that hardfault happens the MSP will still be outside of the RAM range and you take a second hardfault
immediately
23:15 < zippe> MSP is the main stack pointer
23:15 < Tectu> ah
23:15 < Tectu> i see
23:15 < zippe> Many people using the M3 just run everything with one stack pointer
23:15 < zippe> You are better off using the PSP and reserving an exception stack
23:15 < zippe> But that does take more RAM...
23:16 < zyp> I'm going to do that once I revise my memory model
23:16 < zippe> Anyway, when you take a fault while trying to handle a fault you will end up in lockup mode
23:16 < zippe> Read the ARM documentation
23:16 < zyp> I still haven't touched that since moving from F1 to F4
23:16 < zippe> The lockup details are stored in the PC
23:16 < zyp> I'm planning to move all stacks to CCM
23:17 < zyp> seems like the most useful use of CCM
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