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Showing content from https://github.com/stlink-org/stlink/pull/1199 below:

Wrong flash size reported for various chips · Issue #1199 · stlink-org/stlink · GitHub

I'm debugging firmware on STM32H725VGT that has some code above 0x8020000. When I try to access this memory e.g. via disas command in GDB, I get "Cannot access memory at address 0x802xxxx". I've tracked it down to info mem reporting flash region from 0x08000000 to 0x08011c00. The 0x11c00 size is also what I get from st-info --flash. This size is wrong: the chip has 1MiB of flash.

I've also tried this on another chip, the one on STM32F407G-DISC1, and st-info --flash reports flash size of 0x3fffc00, which would be almost 64MiB! The actual size is still 1MiB.

I'm running stlink from develop branch, at e97f438. OS is Ubuntu 20.04 (Linux 5.4.0-65-generic).


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