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# kris@mygeekyhobby.com
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# ver 1.0 - may 2020 - initial release
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# ver 1.2 - june 2020 - added save to SPI EEPROM functionality
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# - fixed the args parsing
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# - added auto load wait option
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# - added save SPI option
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import argparse
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import serial,os
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import time
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parser = argparse.ArgumentParser(description='This script sends data to EPROM Emulator over serial port, requires python 3.8 and pyserial "pip install pyserial"')
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parser.add_argument('file_arg', metavar='<file>', type=str, help='Data file in 8 bit InteHEX format')
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parser.add_argument('port_arg', metavar='<port>', type=str, help='Serial port to use, eg COM1 in Windows or "/dev/ttyUSB0" in Linux')
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parser.add_argument('-mem', metavar='<type>', type=str, choices=['2716', '2732','2764', '27128', '27256', '27512'], default='27512', help='Emulated EPROM memory type, eg.: 2716..27512. Defaults to 27512')
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parser.add_argument('-spi', metavar='y/n', choices=['y','n'], default=False, help='Enable/Disable emulator saves data to SPI EEPROM. This only works on "full images" with data in blocks of 128 bytes, starting from 0000h')
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parser.add_argument('-auto', metavar='y/n', choices=['y','n'], default=False, help='Enable/Disable emulator automatically load last saved image and EPROM configuraiton on start.')
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args = parser.parse_args()
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print("")
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print(args)
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print("")
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mem_type = ""
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if args.mem == "2716":
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mem_type = ':ini16'
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max_size = 2048
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elif args.mem == "2732":
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mem_type = ':ini32'
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max_size = 4096
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elif args.mem == "2764":
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mem_type = ':ini64'
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max_size = 8192
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elif args.mem == "27128":
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mem_type = ':ini128'
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max_size = 16384
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elif args.mem == "27256":
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mem_type = ':ini256'
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max_size = 32768
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elif args.mem == "27512":
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mem_type = ':ini512'
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max_size = 65536
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try:
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ser = serial.Serial(port=args.port_arg,baudrate=115200,timeout=0.1,writeTimeout=0)
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except:
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print("Failed to open port, verify port name")
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exit()
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print("Using serial port {}, emulating: {} EPROM".format(args.port_arg,args.mem))
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time.sleep(2) # on nano, opening the port will trigger reset of the arduino, so need to wait
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try:
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for x in range(4):
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data_tx = ("\r\n").encode()
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ser.write(data_tx)
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ser.flushInput() # ignore anything waiting in the input buffer.
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print("\n-- attempting to get sync --")
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data_tx = (":dml\r\n").encode()
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ser.write(data_tx)
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response = ser.readline()
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if "HW: " in response.decode(): # Emulator will respond with version number like "HW: v1.0"
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print(response.decode())
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elif "...." in response.decode():
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print("Waiting for autoupload to finish... Note: you can disable autoupload by long pressing pushbutton")
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while "..." in ser.readline().decode():
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print(".")
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time.sleep(2)
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ser.flushInput() # ignore anything waiting in the input buffer.
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data_tx = (":dml\r\n").encode()
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ser.write(data_tx)
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response = ser.readline()
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if "HW: " in response.decode():
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print(response.decode())
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else:
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print("Failed to connect after autoload - exiting")
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exit()
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else:
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print("Failed to connect - exiting")
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exit()
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#
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# when sending entire "image" of and EPROM, for example 32k of data to emulate 27256 EPROM, you can ask the EMULATOR to save the data to SPI EEPROM
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# this will only work if you send full blocks of 128 bytes, in consecutive range starting from address 0000h up to the size of emulated EPROM
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# the emulator can reload this data when the button is pressed, can take up to 1min for 27512 - LED will quickly flash during loading.
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#
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if args.spi == "y":
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print('-- Setting "Save to SPI EEPROM" option to enable --')
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data_tx = (":iniSPI1\r\n").encode()
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ser.write(data_tx)
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response = ser.readline()
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print(response.decode())
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if args.spi == "n":
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print('-- Setting "Save to SPI EEPROM" option to disable --')
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data_tx = (":iniSPI0\r\n").encode()
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ser.write(data_tx)
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response = ser.readline()
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print(response.decode())
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#
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# Set the Auto load from SPI EEPROM option
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#
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if args.auto == "y":
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print('-- Setting "Auto load from SPI EEPROM" option to enable --')
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data_tx = (":iniAuto1\r\n").encode()
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ser.write(data_tx)
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response = ser.readline()
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print(response.decode())
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if args.auto == "n":
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print('-- Setting "Auto load from SPI EEPROM" option to disable --')
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data_tx = (":iniAuto0\r\n").encode()
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ser.write(data_tx)
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response = ser.readline()
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print(response.decode())
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print("-- prcessing file --")
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start = time.time()
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bytesdata = 0
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with open(args.file_arg) as fp:
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while True:
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line = fp.readline()
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ser.write(line.encode())
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response = ser.readline()
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print(response[:-2].decode("utf-8"))
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if line[7:9] == "00": # count only data records
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bytesdata += len(line[9:-3])//2
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if not line:
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break
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taken = time.time() - start
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print("Sent {} bytes in {} seconds\n".format(str(bytesdata),round(taken,2)))
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if bytesdata > max_size:
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print("Warninig!!! Sent {} bytes, but the selected {} EPROM can only hold {} bytes...\n".format(str(bytesdata),str(args.mem),str(max_size)))
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print("-- Setting EPROM Type --")
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data_tx = (mem_type + "\r\n").encode()
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ser.write(data_tx)
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response = ser.readline()
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print(response.decode())
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print("-- Finished -- ")
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#while(True):
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# if ser.in_waiting > 0:
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# print(ser.readline())
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except Exception as e:
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print("Failed to send",e)
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ser.close()
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exit()
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