+Header.

clean.sh

@@ -1,3 +1,4 @@
 #!/bin/bash
 
 rm -rf build/*
+

piodco/dco.pio

@@ -1,3 +1,48 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+//  Roman Piksaykin [piksaykin@gmail.com], R2BDY
+//  https://www.qrz.com/db/r2bdy
+//
+///////////////////////////////////////////////////////////////////////////////
+//
+//
+//  dco.pio Digital controlled radio freq oscillator based on PIO.
+// 
+//
+//  DESCRIPTION
+//  -
+//
+//  PLATFORM
+//      Raspberry Pi pico.
+//
+//  REVISION HISTORY
+// 
+//      Rev 0.1   05 Nov 2023
+//  Initial release.
+//
+//  LICENCE
+//      MIT License (http://www.opensource.org/licenses/mit-license.php)
+//
+//  Copyright (c) 2023 by Roman Piksaykin
+//  
+//  Permission is hereby granted, free of charge,to any person obtaining a copy
+//  of this software and associated documentation files (the Software), to deal
+//  in the Software without restriction,including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in
+//  all copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY,WHETHER IN AN ACTION OF CONTRACT,TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+//  THE SOFTWARE.
+///////////////////////////////////////////////////////////////////////////////
 .program dco
     set x, 0
     set y, 0