tree 4cd3e82902017b7d82e395b00b7e8916322ef10e
parent 7b8c3f3b2a2a8f4a606eaa5c27fd38a056284373
author Axel Simon <axel-simon@users.noreply.github.com> 1683114179 -0700
committer GitHub <noreply@github.com> 1683114179 +0200
gpgsig -----BEGIN PGP SIGNATURE-----
 
 wsBcBAABCAAQBQJkUkjDCRBK7hj4Ov3rIwAA8XIIAFUFSOnh77BiG+xIxVjSG9AF
 YX0dmnl2SC1OJ1iPF0n7RKH+uMbqPyasmcqv/auafEtT5s0QPW0UvShY0klgNmr1
 CjEygLIE4V0fa4ylQI8wlC3hfyAUYbULfpnt6vkBntzIgupRzt+bofylwDXx5C5E
 eztIzWfLqVuOeGlJKwOf8jdqgkiNFH494h0d2uA1q4CUITBmChgjmbeg8/zLbo5K
 NuzW8D7wTxaYeKbcusNqyNAXqjSGvk3c331jEqGH0gkm8Qf2mTGKDLLcmFfrahW6
 AWJm8FXxusTmuAhJU45MW3VCQi+MNL1THsW8doa805iuVf2CZ6I/3XZUd1C+Vqk=
 =EXB6
 -----END PGP SIGNATURE-----
 

Devices: Ensure IRQn_Type enum size matches maximum value

This change fixes a bug where a compiler choses a signed byte
to store the IRQn_Type enum type as all listed enum values
fit a signed byte. This causes undefined behavior when calling
functions such as NVIC_EnableIRQ with interrupt channels greater
than 127 as these do not fit a signed byte. As a result,
interrupt channels higher than 127 cannot be enabled, disabled,
or triggered.

Fix this by listing the highest possible interrupt channel in
each enum declaration which ensures that a storage type is chosen
that can accommodate all valid interrupt channels.

Tested on a MEC1527 devices by triggering interrupt channel
171 (watchdog) and observing that the ISR is executed.