From 78397db7140a4ffad4100ec043a58bd8e601407a Mon Sep 17 00:00:00 2001
From: Bdale Garbee <bdale@gag.com>
Date: Sat, 18 Jan 2025 19:43:41 -0700
Subject: [PATCH] updated application, now configuring chip here so setup.sh
 obsolete

---
 application/quantimotor.py | 33 ++++++++++++++++++++++++++++++---
 1 file changed, 30 insertions(+), 3 deletions(-)

diff --git a/application/quantimotor.py b/application/quantimotor.py
index 99ee421..9947382 100755
--- a/application/quantimotor.py
+++ b/application/quantimotor.py
@@ -2,10 +2,19 @@
 # Copyright (C) 2025 Bdale Garbee <bdale@gag.com>.  GPLv3+
 
 import gpiod
+import iio
 import signal
 import sys
 import time
 
+ctx = iio.LocalContext()
+ctrl = ctx.find_device('ads8688')
+# configuration for each channel on ADS8688
+OFFSET = "0"
+SCALE = "0.078127104"
+#VOLTAGES = ['voltage0', 'voltage1', 'voltage2', 'voltage3', 'voltage4', 'voltage5', 'voltage6', 'voltage7']
+VOLTAGES = ['voltage0', 'voltage1']
+
 from gpiod.line import Direction, Value
 
 def handler(signum, frame):
@@ -13,9 +22,12 @@ def handler(signum, frame):
     set_line_values(
         "/dev/gpiochip0", 
         { 4: Value.INACTIVE,	# indicate 'not ready' to LPC
+         16: Value.INACTIVE,	# pyro off
+         17: Value.INACTIVE,	# alarm b off
          20: Value.INACTIVE,	# turn continuity LED off
          21: Value.INACTIVE,	# turn armed LED off
-         25: Value.ACTIVE	# put ADS8688 in reset
+         25: Value.INACTIVE,	# put ADS8688 in reset
+         27: Value.INACTIVE	# alarm a off
         }
     )
     exit(1)
@@ -41,13 +53,28 @@ if __name__ == "__main__":
             "/dev/gpiochip0", 
             {25: Value.ACTIVE,		# take ADS8688 out of reset
               4: Value.ACTIVE,		# indicate 'ready' to LPC
+             16: Value.ACTIVE,		# pyro on
+             17: Value.ACTIVE,		# alarm b on
              20: Value.ACTIVE,		# turn continuity LED on
-             21: Value.INACTIVE		# turn armed LED off
+             21: Value.INACTIVE,	# turn armed LED off
+             27: Value.ACTIVE		# alarm a on
             }
         )
+
+        # configure ADC channels
+        for id in VOLTAGES:
+            chan = ctrl.find_channel(id)
+            chan.attrs['offset'].value = OFFSET
+            chan.attrs['scale'].value = SCALE
+
         # Iterate until ctrl/c
         while True:
-            print('tick')
+            for id in VOLTAGES:
+                chan = ctrl.find_channel(id)
+                rawstring = chan.attrs['raw'].value
+                voltage = (float(rawstring) + float(OFFSET)) * float(SCALE) / 1000
+                print("{0}: {1:0.3f}, ".format( chan.id, voltage), end="")
+            print()
             time.sleep(1)
 
     except OSError as ex:
-- 
2.47.2