Restart from SRAM after Bootloader with problems

[infoinfo978]

Posted on June 30, 2012 at 09:40

Hi guys,

i managed to flash my stm32f107vc via the internal bootloader, but i have problems to get the program running after it. When I reset the MCU the PC is somewhere at the beginning of SRAM i think (0x20000000). I found out, that if I set the PC to 0x8003000 manually, i can let the sw run and everything including interrupts works fine. Can someone help me how to manage to jump from 0x20000000 to 0x8003000 after reset? I am using a linkerfile as seen below:

....

LR_IROM1 0x08003000 0x00080000-0x3000 {    ER_IROM1 0x08003000 0x00080000-0x3000    {       * (RESET, +First)       .ANY (+RO)    }    IRAM 0x20000000 0xD800 ; 55296 Byte (10K also 10 Pages sind dahinter noch Platz)    {       *(STACK)       .ANY2 (+RW +ZI)    } .... before configuring the NVIC i call: NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x3000); thanks for your support guys! Toby  

[stforum.tormod9]

Posted on June 30, 2012 at 11:05

Have you wired BOOT0 and BOOT1 correctly? They can be configured to boot from FLASH, embedded RAM or the ROM (''system memory'') boot loader. Please see AN2606, section 3.1.

Tormod

[infoinfo978]

Posted on June 30, 2012 at 23:02

yes, sure. I have a jumper to select boot 0, boot 1.