Add Adafruit Metro RP2040 #8035
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@ladyada ping for eventual review |
jepler
approved these changes
Jul 12, 2023
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thanks! |
Alternatives welcome! |
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Tested on prototype board. STEMMA I2C works. SD card works with
sdcardio(sdioionot implemented on RP2040).Pin naming note:
The Metro RP2040 has a TX/RX swap switch, because on RP2040 GPIO0 must be TX and GPIO1 must be RX, which is opposite from the Arduino pin convention.
Since the RX and TX pins no longer correspond immutably to D0 and D1, ther are two possibilities I can think of for handling this:
board.TXandboard.RXcompletely. User will need to specifyboard.D0andboard.D1as appropriate.board.D0andboard.D1. Also have:board.RX_D0_SWITCH_LEFTboard.TX_D1_SWITCH_LEFTboard.RX_D1_SWITCH_RIGHTboard.TX_D0_SWITCH_RIGHTI did the latter in this PR.