Add fully buildable support for STM32H745 about mbed-os HOT 4 CLOSED

Please have a look on
https://github.com/ARMmbed/mbed-os/tree/master/targets/TARGET_STM
https://github.com/ARMmbed/mbed-os/tree/master/targets/TARGET_STM#custom-boards
https://github.com/ARMmbed/mbed-os/blob/master/targets/TARGET_STM/TARGET_STM32H7/README.md#stm32h745xx

from mbed-os.

@jtmyz9 thank you for raising this issue.Please take a look at the following comments:

What toolchain(s) are you using?
It would help if you could also specify the versions of any tools you are using?
How can we reproduce your issue?

NOTE: If there are fields which are not applicable then please just add 'n/a' or 'None'. This indicates to us that at least all the fields have been considered.
Please update the issue header with the missing information.

from mbed-os.

@jtmyz9 , If board maker not implement the specific target, you could refer to custom target porting guide based on inherits MCU_STM32H745xI_CM4 or MCU_STM32H745xI_CM7.

For board level, to try adding custom_targets.json & PinNames.h, then build it.

For ex: use case NU_IOT_M2354 custom_targets.json; PinNames.h

from mbed-os.

Please have a look on https://github.com/ARMmbed/mbed-os/tree/master/targets/TARGET_STM https://github.com/ARMmbed/mbed-os/tree/master/targets/TARGET_STM#custom-boards https://github.com/ARMmbed/mbed-os/blob/master/targets/TARGET_STM/TARGET_STM32H7/README.md#stm32h745xx

Was able to follow along with these instructions to generate needed files for a buildable NUCLEO_H745 target locally. What would be the path forward to attempt to push/merge these into 6.17?

from mbed-os.