-- Copyright (C)2026, Philip Munts dba Munts Technologies.
--
-- Redistribution and use in source and binary forms, with or without
-- modification, are permitted provided that the following conditions are met:
--
-- * Redistributions of source code must retain the above copyright notice,
--   this list of conditions and the following disclaimer.
--
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-- ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
-- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-- POSSIBILITY OF SUCH DAMAGE.

-- See https://files.seeedstudio.com/wiki/XIAO-RP2040/img/xinpin.jpg

WITH RP.GPIO;

PACKAGE Seeed_Xiao_RP2040 IS

  Crystal : CONSTANT := 12_000_000; -- Hz

  -- Left edge (DIP pin order)

  GP26 : CONSTANT RP.GPIO.GPIO_Pin := 26;
  GP27 : CONSTANT RP.GPIO.GPIO_Pin := 27;
  GP28 : CONSTANT RP.GPIO.GPIO_Pin := 28;
  GP29 : CONSTANT RP.GPIO.GPIO_Pin := 29;
  GP6  : CONSTANT RP.GPIO.GPIO_Pin := 6;
  GP7  : CONSTANT RP.GPIO.GPIO_Pin := 7;
  GP0  : CONSTANT RP.GPIO.GPIO_Pin := 0;

  A0   RENAMES GP26;
  A1   RENAMES GP27;
  A2   RENAMES GP28;
  A3   RENAMES GP29;

  D0   RENAMES GP26;
  D1   RENAMES GP27;
  D2   RENAMES GP28;
  D3   RENAMES GP29;
  D4   RENAMES GP6;
  D5   RENAMES GP7;
  D6   RENAMES GP0;

  SDA1 RENAMES GP6;
  SCL1 RENAMES GP7;

  TXD0 RENAMES GP0;

  -- Right edge (DIP pin order)

  GP1  : CONSTANT RP.GPIO.GPIO_Pin := 1;
  GP2  : CONSTANT RP.GPIO.GPIO_Pin := 2;
  GP4  : CONSTANT RP.GPIO.GPIO_Pin := 4;
  GP3  : CONSTANT RP.GPIO.GPIO_Pin := 3;

  D7   RENAMES GP1;
  D8   RENAMES GP2;
  D9   RENAMES GP4;
  D10  RENAMES GP3;

  MISO RENAMES GP4;
  MOSI RENAMES GP3;
  SCK  RENAMES GP2;
  SS   RENAMES GP1;

  RXD0 RENAMES GP1;

END Seeed_Xiao_RP2040;