From 9462cd7d2b64241c89737db73e06b47da28d0cd5 Mon Sep 17 00:00:00 2001
From: Bdale Garbee <bdale@gag.com>
Date: Tue, 7 Jan 2025 21:19:57 -0700
Subject: [PATCH] work to date on an application to run QuantiMotor

---
 application/quantimotor.py | 55 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100755 application/quantimotor.py

diff --git a/application/quantimotor.py b/application/quantimotor.py
new file mode 100755
index 0000000..99ee421
--- /dev/null
+++ b/application/quantimotor.py
@@ -0,0 +1,55 @@
+#!/usr/bin/env python3
+# Copyright (C) 2025 Bdale Garbee <bdale@gag.com>.  GPLv3+
+
+import gpiod
+import signal
+import sys
+import time
+
+from gpiod.line import Direction, Value
+
+def handler(signum, frame):
+    print('Ctrl+C pressed, shutting down cleanly.')
+    set_line_values(
+        "/dev/gpiochip0", 
+        { 4: Value.INACTIVE,	# indicate 'not ready' to LPC
+         20: Value.INACTIVE,	# turn continuity LED off
+         21: Value.INACTIVE,	# turn armed LED off
+         25: Value.ACTIVE	# put ADS8688 in reset
+        }
+    )
+    exit(1)
+
+signal.signal(signal.SIGINT, handler)
+
+def set_line_values(chip_path, line_values):
+    value_str = {Value.ACTIVE: "Active", Value.INACTIVE: "Inactive"}
+
+    request = gpiod.request_lines(
+        chip_path,
+        consumer=sys.argv[0],
+        config={
+            tuple(line_values.keys()): gpiod.LineSettings(direction=Direction.OUTPUT)
+        },
+    )
+    request.set_values(line_values)
+
+if __name__ == "__main__":
+    try:
+        # initialize hardware
+        set_line_values(
+            "/dev/gpiochip0", 
+            {25: Value.ACTIVE,		# take ADS8688 out of reset
+              4: Value.ACTIVE,		# indicate 'ready' to LPC
+             20: Value.ACTIVE,		# turn continuity LED on
+             21: Value.INACTIVE		# turn armed LED off
+            }
+        )
+        # Iterate until ctrl/c
+        while True:
+            print('tick')
+            time.sleep(1)
+
+    except OSError as ex:
+        print(ex, "\nD'oh!")
+
-- 
2.47.2