On Tue, Apr 30, 2024 at 4:43 AM osmocom@third-harmonic.com wrote:
Reads of flash and internal bootrom work fine but attempts to access the
SRAM fail. Any clarity much appreciated.
The bootloader reserves some SRAM for its own operation, and disallows access to this area. Reading out the rest of the SRAM shouldn't be a problem.
For example: $ stm32flash -S 0x20000200 /dev/ttyUSB0 -r /tmp/sramout stm32flash 0.7
http://stm32flash.sourceforge.net/
Interface serial_posix: 57600 8E1 Version : 0x22 Option 1 : 0x00 Option 2 : 0x00 Device ID : 0x0410 (STM32F10xxx Medium-density) - RAM : Up to 20KiB (512b reserved by bootloader) - Flash : Up to 128KiB (size first sector: 4x1024) - Option bytes : 16b - System memory : 2KiB Memory read Read address 0x20005000 (100.00%) Done.