Files
lowobservable.coax/pycoax/examples/20_char_map.py
2020-05-26 16:58:01 -05:00

64 lines
1.6 KiB
Python
Executable File

#!/usr/bin/env python
from common import create_serial, create_interface
from coax import Control, read_address_counter_hi, read_address_counter_lo, load_address_counter_hi, load_address_counter_lo, write_data, load_control_register
DIGIT_MAP = [0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85]
with create_serial() as serial:
interface = create_interface(serial)
load_control_register(interface, Control(cursor_inhibit=True))
load_address_counter_hi(interface, 0)
load_address_counter_lo(interface, 80)
buffer = b'\x00' * 4
# Header Row
for lo in range(16):
buffer += bytes([0x2f, DIGIT_MAP[lo]]) + (b'\x00' * 2)
buffer += b'\x00' * 12
# Rows
for hi in range(16):
buffer += bytes([DIGIT_MAP[hi], 0x2f]) + (b'\x00' * 2)
for lo in range(16):
if hi < 12:
buffer += bytes([0x00, (hi << 4) | lo, 0xc0, 0x00])
else:
buffer += bytes([(hi << 4) | lo, 0x32, 0xc0, 0x00])
buffer += b'\x00' * 12
buffer += b'\x00' * 560
write_data(interface, buffer)
# Status Line
load_address_counter_hi(interface, 7)
load_address_counter_lo(interface, 48)
buffer = b''
for hi in range(12, 16):
buffer += bytes([DIGIT_MAP[hi]]) + (b'\x00' * 15)
buffer += b'\x00' * 16
for hi in range(12, 16):
for lo in range(0, 16):
buffer += bytes([DIGIT_MAP[lo]])
write_data(interface, buffer)
load_address_counter_hi(interface, 0)
load_address_counter_lo(interface, 0)
buffer = bytes(range(0xc0, 0xff + 1))
write_data(interface, buffer)