tt07_fprn.py

from time import sleep_ms, sleep_us
from micropython import const

from machine import ADC, Pin
import rp2

import ttcontrol

a0 = ADC(Pin(45))

def read_ap():
    return a0.read_u16() * 3.3 / 65535

H_GATE = []
H_GATE.append(ttcontrol.uio[5])
H_GATE.append(ttcontrol.uio[2])
H_GATE.append(ttcontrol.ui_in[1])
V_GATE = []
V_GATE.append(ttcontrol.uio[6])
V_GATE.append(ttcontrol.uio[3])
V_GATE.append(ttcontrol.uio[0])

HD_RES = ttcontrol.ui_in[4]
HD_SHORT = ttcontrol.ui_in[3]
HD_LINE = ttcontrol.ui_in[2]

HD = [HD_RES, HD_SHORT, HD_LINE]

VD_RES = ttcontrol.ui_in[7]
VD_SHORT = ttcontrol.ui_in[6]
VD_LINE = ttcontrol.ui_in[5]

VD = [VD_RES, VD_SHORT, VD_LINE]

RES = const(0)
SHORT = const(1)
LINE = const(2)

H_INPUT = []
H_INPUT.append(ttcontrol.ui_in[0])
H_INPUT.append(ttcontrol.proj_rst_n)
H_INPUT.append(ttcontrol.clk_pin)

V_INPUT = []
V_INPUT.append(ttcontrol.uio[7])
V_INPUT.append(ttcontrol.uio[4])
V_INPUT.append(ttcontrol.uio[1])

def enable_hv_latch(h, v):
    H_GATE[h].on()
    V_GATE[v].on()

def disable_latches():
    for i in range(3):
        H_GATE[i].off()
        V_GATE[i].off()

def set_hd_vd(h, v, setting_h, setting_v):
    enable_hv_latch(h, v)
    if setting_h is not None:
        HD[setting_h].on()
    if setting_v is not None:
        VD[setting_v].on()
    sleep_us(100)
    disable_latches()
    sleep_us(100)
    if setting_h is not None:
        HD[setting_h].off()
    if setting_v is not None:
        VD[setting_v].off()

def init():
    # Design 0 doesn't drive the bidirs, select it
    ttcontrol.select_design(0)
    
    # Enable all inputs and set them all low
    ttcontrol.enable_ui_in(True)
    ttcontrol.enable_uio_in((True,)*8)

    disable_latches()
    for i in range(3):
        HD[i].off()
        VD[i].off()
        H_INPUT[i].off()
        V_INPUT[i].off()
        
    for h in range(3):
        for v in range(3):
            set_hd_vd(h, v, None, None)
    
    # Select design
    ttcontrol.select_design(482)
    
init()

# Simple voltage divider
set_hd_vd(0, 0, RES, RES)
set_hd_vd(0, 1, RES, None)
set_hd_vd(0, 2, RES, None)
set_hd_vd(1, 0, None, RES)
set_hd_vd(2, 0, None, RES)

print(read_ap())