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This is the half page size, not the full page size. It's also unused, so just drop it. Signed-off-by: Karl Palsson <[email protected]>
On Cortex-M3 and up parts, this doesn't matter, but for M0/M0+, this is required. Signed-off-by: Karl Palsson <[email protected]>
Demonstration of an m0+ target, and the ease of porting. Unfortunately, some internal library code uses a modulo operation, and that pulls in software divide, and this blows out past the 8k assumed bootloader size. You can simply comment out webusb_setup(usbd_dev); winusb_setup(usbd_dev); in dapboot.c and it will drop under 8k again, but's clearly not a viable long term solution.
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Tested on L1 and L0 using the "dapboot" project, see devanlai/dapboot#27 for L1 and devanlai/dapboot#30 for L0
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Tested on L1 and L0 using the "dapboot" project, see devanlai/dapboot#27 for L1 and devanlai/dapboot#30 for L0
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Tested on L1 and L0 using the "dapboot" project, see devanlai/dapboot#27 for L1 and devanlai/dapboot#30 for L0
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@karlp Thanks for sharing this! I'm working on a project that uses an STM32L053. I was surprised that the chip has a USB peripheral, but the built-in bootloader from STM can't do USB DFU like other STM parts I've used (STM32F042 for example). Going to give this a try for the bootloader instead! |
karlp
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Sep 5, 2021
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| /* Include the common ld script. */ | ||
| INCLUDE stm32l1/stm32l1-base.ld |
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this is wrong, but harmless, as the "base" file is actually the same "cortex-m-generic" file anyway.
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Just a demo really of targetting an M0+ part.
I don't actually have any use for this going forward, but I had 99% of the code done, so tested it at least, and thought I'd share it here if anyone else wants this sort of thing.