avr/leia: add 'n' → ports

.gitignore

@@ -19,3 +19,4 @@ nm64file
 mustang_scripts
 nm64/nm64
 ahepam/seth
+leia/

avr

@@ -1 +1 @@
-Subproject commit 7ebd848bd2e58dc30c966ebf915f7ce6ff8e77df
+Subproject commit a7e45f235d59d5f8d815bf7daf9734e9ee0f2a2c

dorn.py

@@ -186,6 +186,25 @@ class DORN_CONFIG:
         # ! change the class attribute .HK
         self.HK[4] = ("HK PA", self.HK4_AHBGO, HK4_AHBGO_fmt)
 
+    # calib 2025-11-25
+    Fluke_cal = 1/0.862
+    #  SN2 dac, 14*HK3H, VbiasD
+    VbiasD_SN2 = [
+       [    64,  0.51,  0.5 * Fluke_cal ],
+       [   960,  1.85,  1.6 * Fluke_cal ],
+       [  1984,  3.36,  2.9 * Fluke_cal ],
+       [  4992,  7.85,  6.7 * Fluke_cal ],
+       [  9984, 15.27, 13.1 * Fluke_cal ],
+       [ 14976, 22.56, 19.3 * Fluke_cal ],
+       [ 19968, 29.91, 25.6 * Fluke_cal ],
+       [ 20992, 31.42, 26.9 * Fluke_cal ],
+       [ 21440, 32.06, 27.5 * Fluke_cal ],
+       [ 21952, 32.83, 28.0 * Fluke_cal ],
+       [ 24960, 37.36, 28.6 * Fluke_cal ],
+    ]
+    VbiasD_a = 0.033
+    VbiasD_b = 0.9918
+ 
     HK3_LEIA = [[
         ("Tadc",  (degC, {})),
         ("Vadc",  2.0),
@@ -194,13 +213,13 @@ class DORN_CONFIG:
         ("Vss",   2.5, ("Vcc", -1.5)),
         ("Vcc",   2.0),
         ("Vbias2", -1/0.022 * 66.6/75.2),
-        ("VbiasD", -14.),
+        ("VbiasD", -14 * VbiasD_b - VbiasD_a),
     ]]
 
     HK4_LEIA = [[
         ("IbiasD", 100., -1.4),
         ("VbiasG", 46.3, ("Vref", -45.3)),
-        ("Ibias2", 10470/470 * 51/1051 * 100, -65.0),
+        ("Ibias2", 10470/470 * 51/1051 * 100, -71.0),
         ("Ibias1", 10470/470 * 51/1051 * 100, -52.0),
         ("Vbias1", -1/0.047 * 44.7/48.5),
         ("Tpa0", (degC, {})),
@@ -686,3 +705,15 @@ def mem_op(addr=None, hist=None, bank=None, data=None, read=None, clear=None, ba
             dorn_config(base+1, h, "mem data high")
             dh = h
         dorn_config(base, d & 0xffff, "mem data write")
+
+def VbiasD(V):
+    a = 0.48
+    b = 95.97
+    if V < 0:
+        V = -V
+    if V>32:
+        raise valueError(f"VbiasD too large {V}V > 32V")
+    d = int(0x10000/b*(V-a) + 32)
+    if d<0:
+        d = 0
+    ecmd(f"v dac={d}", verb=True)

leia_stepper.py

@@ -563,7 +563,8 @@ class leia_stepper:
         period (float) in ms
         """
         if period is None:
-            return self.cmd('q')
+            r = self.cmd('q')
+            return r, r*self.T1TICK
         if isinstance(period, float):
             period = int(period/self.T1TICK) - 1
             if period < self.MIN_SPEED: