From 3a7990751d32cd55a93d16861405ac7428ee7431 Mon Sep 17 00:00:00 2001
From: Dan White <dan@whiteaudio.com>
Date: Sun, 13 May 2012 21:17:22 -0500
Subject: [PATCH] track down arb_out1 wiggles WRT PS settings

---
 python-lib/mpsse-test.py | 64 +++++++++++++++++++++++++++++-----------
 1 file changed, 47 insertions(+), 17 deletions(-)

diff --git a/python-lib/mpsse-test.py b/python-lib/mpsse-test.py
index a71b557..f395b2d 100755
--- a/python-lib/mpsse-test.py
+++ b/python-lib/mpsse-test.py
@@ -11,8 +11,8 @@ import usbio
 
 
 
-do_shell = True
-#do_shell = False
+#do_shell = True
+do_shell = False
 
 
 
@@ -52,8 +52,10 @@ i2c = usbio.I2C(interface=usbio.ftdi.INTERFACE_C, scl=0, sda=1,
 #  need to make a wrapper class to do e.g. ibias.buf = 10 uA)
 #
 ibias = usbio.AD524x(i2c, 0)
-ibias.posA = 0
-ibias.posB = 0
+#ibias.posA = 0
+#sleep(0.1)
+#ibias.posB = 0
+#sleep(0.1)
 
 
 ##############################################################################
@@ -69,10 +71,40 @@ v430.alias('vb', 'vdd')
 
 # setup power supply defaults
 def psdefaults():
-    vatoi.avdd = 2.5
     vatoi.vdd = 1.2
+    vatoi.avdd = 2.5
     v430.vdd = 1.2
     v430.dvdd = 2.5
+    #sleep(0.1)
+    #sleep(0.1)
+    #sleep(0.1)
+    #sleep(0.1)
+
+
+from itertools import permutations
+def s0(): vatoi.vdd = 1.2
+def s1(): vatoi.avdd = 2.5
+def s2(): v430.vdd = 1.2
+def s3(): v430.dvdd = 2.5
+
+order = [s0, s1, s2, s3]
+
+orderiter = permutations(order)
+for p in orderiter:
+    print p
+    #setup POR values each time
+    vatoi.posA = 128
+    vatoi.posB = 128
+    v430.vdd = 128
+    v430.dvdd = 128
+    sleep(0.1)
+    for s in p:
+        s()
+        sleep(0.1)
+    sleep(1.0)
+
+
+
 
 psdefaults()
 
@@ -88,7 +120,7 @@ dac.swreset()
 dac.reference(dac.REF_FLEXIBLE_ALWAYS_ON)
 
 # CLR is tied high, explicitly ignore anyway
-dac.CCR(dac.IGNORE_CLR)
+#dac.CCR(dac.IGNORE_CLR)
 
 # power up all channels
 bitfield = 0xff
@@ -97,15 +129,15 @@ dac.power(dac.POWER_ON, bitfield)
 # set initial output voltages
 # before tuning
 # channels 0 .. 4
-dac.vina(1.0)
-dac.vinb(1.0)
-dac.vcmi(1.0)
-dac.vbias_core(0.0)
-dac.vbias_buf(0.0)
+#dac.vina(2.0)
+#dac.vinb(2.0)
+#dac.vcmi(2.0)
+dac.vbias_core(100e-3)
+dac.vbias_buf(100e-3)
 
 # zero others
-for i in range(5, 8):
-    dac.setv(i, 0.0)
+#for i in range(5, 8):
+    #dac.setv(i, 0.0)
 
 
 ##############################################################################
@@ -184,16 +216,14 @@ amux.write()
 ##############################################################################
 # transient testing stuff
 #
-dac.vina(1.1)
-dac.vinb(0.9)
+#dac.vina(1.1)
+#dac.vinb(0.9)
 
 
 
 ##############################################################################
 # ADC testing stuff
 #
-dac.vina(1.1)
-
 #go to idle mode
 adc.triggerMode(adc.MODE_IDLE)
 
-- 
2.25.1