one linker script for bootloader and application

#ONE LINKER SCRIPT FOR BOOTLOADER AND APPLICATION HOW TO#
#ONE LINKER SCRIPT FOR BOOTLOADER AND APPLICATION INSTALL#

With the three custom linker scripts provided (test1a.ld, test1b.ld, test1c.ld).

As the boot loader runs at 0x08000000 does the Arduino change the code linking address so that sketches are compiled for another address when the programmer is set to use the boot loader? I find the Arduino IDE build information that is output very convoluted so difficult to know where to start looking to see what load address it uses. The bootloader has its vector table at 0x0000, and the application has its. The other question is and is probably the issue I'm having but I'm not sure what I need to do. My program uses a USB and when connected a /dev/ttyACMx device is created.īefore the boot loader passes control to the flashed application does it fiddle the PA12 bit to force enumeration? The Blink program appears to have the ttyACM support as part of the build and I can see that but with my GCC application I'm not seeing my ttyACM device. Since linker scripts are composable, we will be able to include that memory map into the linker scripts we write for our bootloader and our application. If it may helps, the bootloader (.hex file) is generated with Keil, while my application with Eclipse, Ac6 Tool and SW4STM32. One of the problem you may find with the linker script approach is there may be only one copy of the library files, so if you update the application, the library files need by the bootloader may be erased while updating. I can build and flash the binary using stm32flash over a serial port or using st-flash over an ST-Link and it flashes and works fine. Before doing this I erase the whole flash, then loaded the bootlader (.hex) file with openocd and finally loaded the application binary with the software setting the start address as in the linker script. How application and bootloader linker script memory region defined to place both code in perticular region. I have a program I wrote that is built with GCC and uses the STM32F10x_StdPeriph_Lib_V3.5.0 library and the USB drivers they provide.

#ONE LINKER SCRIPT FOR BOOTLOADER AND APPLICATION HOW TO#

This builds fine and I can use the boot loader to flash it under Arduino so appears this is working fine. linker script for bootloader punk shows phoenix Newsletters how to test a solenoid with a screwdriver.

Burn Bootloader or insert (embed) a file containing configuration so that USB.

#ONE LINKER SCRIPT FOR BOOTLOADER AND APPLICATION INSTALL#

To test this I used the generic STM32F103R Blink example after change the LED pin. Application Programming First, download and install the STM32 ST Download. I have the 'generic_boot20_pb9.bin' boot loader installed on an LC Studio STM32F103RBT6 development board.

One linker script for bootloader and application