Pin numbers don't match b/w datasheet and variant.h!

pert · February 17, 2018, 12:22pm

That is the variant file for the M0 Pro:

arduino/ArduinoCore-samd/blob/master/boards.txt#L300


      
          mkrfox1200.build.openocdscript=openocd_scripts/arduino_zero.cfg
          mkrfox1200.build.variant=mkrfox1200
          mkrfox1200.build.vid=0x2341
          mkrfox1200.build.pid=0x8050
          mkrfox1200.bootloader.tool=openocd
          mkrfox1200.bootloader.tool.default=openocd
          mkrfox1200.bootloader.file=mkrfox1200/samd21_sam_ba_arduino_mkrfox1200.bin
          
          
# Arduino MKR WAN 1300
          # --------------------
          mkrwan1300.name=Arduino MKR WAN 1300
          mkrwan1300.vid.0=0x2341
          mkrwan1300.pid.0=0x8053
          mkrwan1300.vid.1=0x2341
          mkrwan1300.pid.1=0x0053
          mkrwan1300.upload_port.0.vid=0x2341
          mkrwan1300.upload_port.0.pid=0x8053
          mkrwan1300.upload_port.1.vid=0x2341
          mkrwan1300.upload_port.1.pid=0x0053
          mkrwan1300.upload_port.2.board=mkrwan1300

I'm guessing the reference to "Zero board" is because they copied it over from the Zero and didn't bother to completely update the comment text.

This is the variant for the Zero:

github.com

arduino/ArduinoCore-samd/blob/master/variants/arduino_zero/variant.cpp

/*
  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  See the GNU Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/
/*
 * +------------+------------------+--------+-----------------+--------------------------------------------------------------------------------------------------------
 * + Pin number +  ZERO Board pin  |  PIN   | Label/Name      | Comments (* is for default peripheral in use)

This file has been truncated. show original

and indeed it does show the pins 2 and 4 switched from the arduino_mzero variant.

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Pin numbers don't match b/w datasheet and variant.h!

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