Trials and tribulations

2025-05-30 22:34:10 +02:00 · 2025-05-30 22:34:10 +02:00 · 300323853b
commit 300323853b
parent d702695b3b
4 changed files with 210 additions and 4 deletions
--- a/buba/main.py
+++ b/buba/main.py
@ -1,9 +1,113 @@

+from time import sleep
+
 from pyfis.aegmis import MIS1TextDisplay
+from pyfis.utils import debug_hex


-display = MIS1TextDisplay("/dev/ttyUSB3",)
+def receive(display):
+    if display.use_rts:
+        display.port.setRTS(1)
+    display.port.write([0x04, 0x81, 0x05])
+    if display.use_rts:
+        display.port.setRTS(0)
+    return display.read_response(True)
+
+def decode(display):
+    r = receive(display)
+    if r[0] != 0x02:
+        print("Invalid byte {r[0]:02x}, expected EOT")
+    d = {
+        'code': r[1],
+        'subcode': r[2],
+    }
+    m = []
+    esc = False
+    for i in range(3, len(r)-1):
+        if esc:
+            m.append(r[i])
+            erc = False
+        elif r[i] == 0x10:
+            esc = True
+        else:
+            if r[i] == 0x03:
+                # compute checksum
+                next
+            m.append(r[i])
+    m = m[0:-1]
+    print(f"m({len(m)}): {debug_hex(m)}")
+    return m
+
+
+def reset_and_get_config(display):
+    display.send_command(0x31, 0x00, [])
+    r = decode(display)
+    return {
+        'type': r[0],
+        'control-units': r[1],
+        'digits-a': r[2] * 256 + r[3],
+        'lines-a': r[4],
+        'digits-b': r[5] * 256 + r[6],
+        'lines-b': r[7],
+        'timeout': r[8] * 128.0 + r[9] * 0.5,
+    }
+
+def get_config(display):
+    display.send_command(0x38, 0x00, [])
+    r = decode(display)
+    return r
+
+def text_raw(display, page, row, text):
+    data = [display.ALIGN_LEFT, page, row, 0] + text
+    return display.send_command(0x11, 0x00, data, expect_response=False)
+
+
+print("Opening serial port")
+display = MIS1TextDisplay("/dev/ttyUSB0")
+
+print("Sending text")
+display.debug = True
+#r = display.send_command(0x31, 0x00, []) # reset
+#r = display.send_command(0x32, 0x01, []) # test
+#r = display.send_command(0x38, 0x01, []) # read config
+#r = display.read_response()
+#print(f"Response: {r}")
+#r = display.send_command(0x52, 0x01, []) # read config
+#display.send_raw_telegram([0xff])
+#display.send_raw_data([0x04, 0x81, 0x02, 0x03, 0x00])
+#print(f"response: {display.read_response()}")
+#r = reset_and_get_config(display)
+r = get_config(display)
+print(f"reply {len(r)}: {r}")
+
 display.simple_text(page=1, row=0, col=0, text="MEOW MEOW MEOW MEOW MEOW MEOW MEOW MEOW", align=display.ALIGN_CENTER)
 display.simple_text(page=1, row=1, col=0, text="MEOW MEOW MEOW MEOW MEOW MEOW MEOW MEOW", align=display.ALIGN_CENTER)
 display.simple_text(page=1, row=2, col=0, text="MEOW MEOW MEOW MEOW MEOW MEOW MEOW MEOW", align=display.ALIGN_CENTER)
 display.simple_text(page=1, row=3, col=0, text="MEOW MEOW MEOW MEOW MEOW MEOW MEOW MEOW", align=display.ALIGN_CENTER)
+
+display.simple_text(page=0, row=3, col=0, text="MEOW MEOW MEOW MEOW MEOW MEOW", align=display.ALIGN_CENTER)
+
+#print("page 1")
+#display.set_page(1)
+#sleep(10)
+
+#for l in range(0,4):
+#    display.simple_text(page=0, row=l, col=0, text="")
+#print("page 0")
+#display.set_page(0)
+#sleep(10)
+
+#print("page 1")
+#display.set_page(1)
+#sleep(10)
+
+display.set_pages(((0,5), (1,5), (2,5), (3,5), (4,5), (5,5)))
+for p in range(0,6):
+    for l in range(0,4):
+        b = []
+        for c in range(0,16):
+            b.append(((((l+p) % 6) + 2) * 16) + c)
+        text_raw(display, p, l, b)
+
+
+print("Thats all, folks!")