Is your feature request related to a problem? Please describe.
The Teensy 4.1 has additional pins, numbered 48 through 54. They're used to interface external RAM and FLASH. They're not implemented in teensy4-pins.
Describe the solution you'd like
Implement and document pins 48 through 54 in the t41 module of teensy4-pins.
Describe alternatives you've considered
Directly use the imxrt-iomuxc APIs, but this requires a deeper understanding of the processor. It's more convenient to use teensy4-pins, since that's how the board identifies I/O.
Additional context
This effort resembles #103, which implemented pins 42 through 47.
Here's the schematic. At a quick glance, it's not clear if these pins are documented. The official SDK might have more information.
Using these new pins for external RAM or FLASH might not work without #86.
I'm not sure if these pins have any / all of the relevant imxrt-iomuxc pin implementations. If they're not implemented, that could happen separately.
Alexander89
commented
2 years ago
Is your feature request related to a problem? Please describe. The Teensy 4.1 has additional pins, numbered 48 through 54. They're used to interface external RAM and FLASH. They're not implemented in
teensy4-pins.Describe the solution you'd like Implement and document pins 48 through 54 in the
t41module ofteensy4-pins.Describe alternatives you've considered Directly use the
imxrt-iomuxcAPIs, but this requires a deeper understanding of the processor. It's more convenient to useteensy4-pins, since that's how the board identifies I/O.Additional context
imxrt-iomuxcpin implementations. If they're not implemented, that could happen separately.