121 lines
2.8 KiB
Python
121 lines
2.8 KiB
Python
#!/usr/bin/python
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# coding=utf-8
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import threading
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import time
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import os
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import sys
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import serial
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PORT = '/dev/ttyAMA0'
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BAUDCOMM = 9600
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BAUDUPLOAD = 115200
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CHECK_MODEL = 'NX3224T024'
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if len(sys.argv) != 2:
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print 'usage: python %s file_to_upload.tft' % sys.argv[0]
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exit(-2)
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file_path = sys.argv[1]
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if os.path.isfile(file_path):
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print 'uploading %s (%i bytes)...' % (file_path, os.path.getsize(file_path))
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else:
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print 'file not found'
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exit(-1)
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fsize = os.path.getsize(file_path)
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print('Filesize: ' + str(fsize))
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ser = serial.Serial(PORT, BAUDCOMM, timeout=.1, )
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acked = threading.Event()
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stop_thread = threading.Event()
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def reader():
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global acked
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global ser
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while stop_thread.is_set() == False:
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r = ser.read(1)
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if r == '':
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continue
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elif '\x05' in r:
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acked.set()
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continue
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else:
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print '<%r>' % r
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continue
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def upload():
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global acked
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global ser
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global stop_thread
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ser.write('tjchmi-wri %i,%i,0' % (fsize, BAUDUPLOAD))
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ser.write("\xff\xff\xff")
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ser.flush()
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acked.clear()
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ser.baudrate = BAUDUPLOAD
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ser.timeout = 0.1
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threader.start()
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print 'Waiting for ACK...'
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acked.wait()
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print 'Uploading...'
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with open(file_path, 'rb') as hmif:
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dcount = 0
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while True:
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#time.sleep(.1)
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data = hmif.read(4096)
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if len(data) == 0: break
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dcount += len(data)
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#print 'writing %i...' % len(data)
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ser.write(data)
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acked.clear()
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sys.stdout.write('\rDownloading, %3.1f%%...' % (dcount/ float(fsize)*100.0))
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sys.stdout.flush()
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#print 'waiting for hmi...'
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acked.wait()
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print('')
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stop_thread.set()
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threader.join(1)
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threader = threading.Thread(target = reader)
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threader.daemon = True
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no_connect = True
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for baudrate in (2400, 4800, 9600, 19200, 38400, 57600, 115200):
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ser.baudrate = baudrate
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ser.timeout = 3000/baudrate + 0.2
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print('Trying with ' + str(baudrate) + '...')
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ser.write("\xff\xff\xff")
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ser.write('connect')
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ser.write("\xff\xff\xff")
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r = ser.read(128)
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if 'comok' in r:
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print('Connected with ' + str(baudrate) + '!')
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no_connect = False
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status, unknown1, model, unknown2, version, serial, flash_size = r.strip("\xff\x00").split(',')
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print('Status: ' + status)
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print('Model: ' + model)
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print('Version: ' + version)
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print('Serial: ' + serial)
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print('Flash size: ' + flash_size)
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if fsize > flash_size:
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print('File too big!')
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break
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if not CHECK_MODEL in model:
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print('Wrong Display!')
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break
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upload()
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break
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if no_connect:
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print('No connection!')
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else:
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print('File written to Display!')
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ser.close()
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