Get maximal free flash size at runtime

[bvrm]

Is it possible to determine the maximal free/usable flash size at runtime? Assuming a memory layout as shown here, is there a register that keeps the end boundary of the application? something like UICR.BOOTLOADERADDR.

[bvrm]

Thanks for pointing me into the right direction.

In Keil you can use these linker symbols to get location and length of the image.

extern uint32_t Load$$LR$$LR_IROM1$$Base; // Address of the load region.
extern uint32_t Load$$LR$$LR_IROM1$$Length; // Length of the load region in bytes.
extern uint32_t Load$$LR$$LR_IROM1$$Limit; // Address of the byte beyond the end of the load region.

uint32_t LROBase = (uint32_t)&Load$$LR$$LR_IROM1$$Base;
uint32_t LROLength = (uint32_t)&Load$$LR$$LR_IROM1$$Length;
uint32_t LROLimit = (uint32_t)&Load$$LR$$LR_IROM1$$Limit;