boards/nucleo-f767zi: add correct flash bank openocd config [backport 2020.01]#13219
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fjmolinas merged 2 commits intoRIOT-OS:2020.01-branchfrom Jan 28, 2020
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Allow specifying index of `flash bank` to read configuration from in cases where the configuration provided in openocd is incorrect. This is the case for the majority of stm32 boards where it relies on `flash probe` to get the correct value. (cherry picked from commit 53f60db)
openocd configuration file for `stm32f7` relies on probing to find out FLASH_ADDR. On nucleo-f767zi board probing (`flash probe 0`) fails when `srst` is asserted, but `srst` needs to be asserted to be able to flash the `BOARD` when sleeping or after a hardfault. To circumvent this in boards/common/stm32/dist/stm32f7.cfg we define a new flash bank with the appropriate fash start address and specify that this is the flash bank to be used as default configuration instead of the default by setting FLASH_BANK=4 (cherry picked from commit 1dec5ba)
This was referenced Feb 28, 2020
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Backport of #13179
Contribution description
This pr fixes flashing bin files on
nucleo-f767zi, this issue is not present on allnucleo-f7*boards.Flashing bin files on
nucleo-f767zifails for two reasons:Playing around with
openocd.shI have found thatflash probe 0fails on thisBOARDwhensrstisasserted, but ifsrstisdeassertedprobing fails anyway if the device ishardfaultedor insleep mode.I couldn't find the reason why probing fails in this case, but to keep asserting
srstI added the correctFLASH_ADDRin ourstm32f7.cfgfile and addedFLASH_BANKto allow specifying whichflash bankto use as configuration input and not use the one intarget/stm32f7x.cfgTesting procedure
make -C tests/riotboot/ BOARD=nucleo-f767zi flash