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a8b79332ba
Coin cell charge detection bugfix ESL Blaster FW version detection Updated flashtest.py to write nasty frames (DM show debug info permanently)
120 lines
3.2 KiB
Python
120 lines
3.2 KiB
Python
# Procedures related to the IR transmitters only
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# 2019 furrtek - furrtek.org
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# See LICENSE
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import serial
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def try_serialport(comport):
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try:
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ser = serial.Serial(comport, 57600, timeout = 1) # 1s timeout for read
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ser.write("?".encode())
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ser.flush()
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test = ser.read_until("ESLBlaster")
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ser.close()
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if (len(test) >= 12):
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hw_ver = chr(test[10])
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fw_ver = int(chr(test[11]))
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print("Found ESL Blaster (HW %s, FW V%d) on %s" % (hw_ver, fw_ver, comport))
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return [True, hw_ver, fw_ver]
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else:
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print("Timeout on " + comport)
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return [False, 0, 0]
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except serial.SerialException:
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#print("SerialException on " + comport) # Debug
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return [False, 0, 0]
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def search_esl_blaster():
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found = False
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# Windows
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for n in range(1, 10):
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comport = "COM" + str(n)
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result = try_serialport(comport)
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if result[0]:
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found = True
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break
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# Linux
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if found == False:
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for n in range(1, 10):
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comport = "/dev/ttyACM" + str(n)
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result = try_serialport(comport)
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if result[0]:
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found = True
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break
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if found == False:
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print("Could not find ESL Blaster.")
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else:
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result[0] = comport
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return result
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def transmit_serial(frames, port):
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ser = serial.Serial(port, 57600, timeout = 10) # 10s timeout for read
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ser.reset_input_buffer()
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frame_count = len(frames)
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i = 1
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for fr in frames:
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data_size = len(fr) - 2
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repeats = fr[-2] + (fr[-1] * 256)
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if repeats > 255: # Cap to one byte for the simple serial transmitter
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repeats = 255
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print("Transmitting frame %u/%u, length %u, repeated %u times." % (i, frame_count, data_size, repeats))
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ba = bytearray()
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ba.append(data_size)
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ba.append(repeats)
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for b in range(0, data_size):
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ba.append(fr[b])
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ser.write(ba)
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ser.flush()
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ser.read_until('A')
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i += 1
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ser.close()
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def transmit_esl_blaster(frames, pp16, port):
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ser = serial.Serial(port, 57600, timeout = 10) # 10s timeout for read
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ser.reset_input_buffer()
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frame_count = len(frames)
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i = 1
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# DEBUG
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#f = open("out_bin.txt", "w")
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for fr in frames:
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data_size = len(fr) - 2
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repeats = fr[-2] + (fr[-1] * 256)
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if repeats > 32767: # Cap to 15 bits because FW V2 uses bit 16 to indicate PP16 protocol
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repeats = 32767
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print("Transmitting frame %u/%u using %s, length %u, repeated %u times." % (i, frame_count, "PP16" if pp16 else "PP4", data_size, repeats))
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if pp16:
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repeats |= 0x8000
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ba = bytearray()
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ba.append(76) # L:Load
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ba.append(data_size)
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ba.append(30) # 30*50 = 1500 timer ticks between repeats
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ba.append(repeats & 255)
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ba.append((repeats // 256) & 255)
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for b in range(0, data_size):
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ba.append(fr[b])
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ba.append(84) # T:Transmit
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# DEBUG
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#for b in ba:
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# f.write(format(b, '02X') + " ")
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#f.write("\n")
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ser.write(ba)
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ser.flush()
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ser.read_until(b'K') # Wait for transmit done
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i += 1
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ser.close()
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