Add LPC55xx HIC support to experimental_compilers #803
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mathias-arm
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Apr 21, 2021
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- Add weak flash_is_readable() to flash_hal.*. The default implementation just checks if the address is valid. - Use the new API in info.c to verify the flash pages containing the bootloader/interface info fields are accessible. - bootloader_update.c checks readability. - The cfgrom support checks readability. Plus changed to use the flash HAL API.
- Saving nominal requested clock frequency in DAP_Data. - Made SWD bit banging functions weak.
- Because the LPC5xx series raises bus faults on attempts to read from erased sectors in internal flash, the standard validate_bin_nvic() has to be overridden to prevent the bootloader from faulting when it tries to check if there is a valid interface app in flash. - This is done by supplying a target family and custom NVIC validator function. - The standard NVIC validation code is split out from validate_bin_nvic() into validate_bin_nvic_base() so it can be called from the custom validator once it is determined that the sector is programmed, or if the given address is not in internal flash. - Provide an overridden implementation of flash_is_page_readable() that uses the flash blank check command to see if the page is erased.
- Booting BL and IF to 96 MHz, to keep main clock below 100 MHz so internal flash can be programmed. - IF changes to 150 MHz when initing USB clocks.
Lots of cleanup to make USBD driver more understandable.
- Implemented gpio.c. - Updated IO_Config.h and added mask macros. - Implemented DAP_config.h.
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@flit is the main author, tested with MCU-Link.