I am developing for the STM32F0 using Keil uVision.
I have a custom bootloader loaded running at address 0x08000000. I need the bootloader to jump to my main application which I flash at address 0x08003000. The ultimate goal is to allow remote updates of the main application. The bootloader code that jumps to the application is this:
__disable_irq(); JumpAddress = *(__IO uint32_t*) (APPLICATION_ADDRESS+4); Jump_To_Application = (pFunction) JumpAddress; __set_MSP(*(__IO uint32_t*) APPLICATION_ADDRESS); Jump_To_Application();
I am getting a hard fault in the Jump_To_Application() line, with "Cannot access memory" message given by Keil.
Within Keil, I set the IROM1 start address to be 0x08003000 in my main application's project configuration. I feel like the problem lies in some further settings within Keil. For example, should IROM2 be set to anything? Should anything be adjusted from defaults in the Keil configuration within the bootloader project?
Does anyone have any recommendations?
I had the same problem: I solved it with commented this lines:
Some advice for anyone writing a bootloader for first time:
Turn your code into small sections: