One linker script for bootloader and application how to#
Build the application 'normally', in Flash mode using the default linker script. linker script for bootloader punk shows phoenix Newsletters how to test a solenoid with a screwdriver. A Bootloader and an application is working fine.The bootloader loads the application, and then jumps into it.The problem: I need to use different linker script to either have the app standalone or bootloader compatible.I believe it is because the memory segment is not correctly defined for kseg0programmem, kseg0bootmem & kseg1bootmem. Always place the ebaseaddress at start of Program flash memory (Example : 0x9D000000) like the default linker script Change the offsets of exceptions and. This application note describes one approach described hereafter as a User Bootloader. 0x8000 in your case), this will also mean that the new vector table starts at 0x8000, unless you remove it all together and place it in RAM - but that is a slightly different topic (remember about the 256-byte alignment requirement for the NVIC in that case). Here is a summary of the steps for modifying an existing working standard (vectors at start of Flash, default linker script, etc.) Ride/GCC/ARM application for use with a bootloader (basically, that means leaving a blank space at the beginning of Flash).
Yes - you have to relocate your vector table, otherwise the interrupts will fire handlers of the bootloader, which will almost certainly lead to a crash.įirst you modify the linker script to "move the flash" a little bit higher (eg. To link the bootloader or application, the shared linker script is run through the C preprocessor to generate the linker script used for linking.
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