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aborga |
#! /usr/bin/python
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######################################################
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#-- author: Andrea Borga (andrea.borga@nikhef.nl)
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#-- date: $22/11/2011 $: created
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#--
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#-- version: $Rev 0 $:
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#--
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#-- description:
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#-- basic python script to read and write
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#-- UART registers
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#--
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#-- NOTE: look through the code for this
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#--
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#-- -- ----------------------
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#-- -- ----------------------
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#--
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#-- to spot where the code needs customization
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#
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#-- Tested with Python 2.6 on Ubunru 10.04 LTS
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#
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#
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######################################################
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import serial
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#ser = serial.Serial('/dev/ttyUSB0',115200,timeout=1)
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ser = serial.Serial()
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ser.port = "/dev/ttyUSB0" # set your port check in /dev folder
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#ser.baudrate = 115200 # set your baud rate
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ser.baudrate = 921600
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ser.timeout = 1
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ser.open()
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print "Connected to: \t", ser.portstr
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print "FPGA is ready to accept a command"
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print "^] to quit"
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print "help for command menu"
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while 1:
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if ser.isOpen():
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in_var_add = raw_input("Type a command >> ")
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if in_var_add != '\x1d' : # send a command
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if in_var_add == 'help' : # help menu
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print "\n", "here is a list implemented commands"
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print " release on : enables GXBs, PRBS tx, and PRBS rx"
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print " release off : disables whole logic"
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#-----------------------
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# add commands description here
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#-----------------------
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print " update : sends an update command"
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print " help : prints this menu", "\n"
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elif in_var_add == 'release on' :
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ser.write('\x00\x30\x00\x00\x01\x11')
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#elif in_var_add == 'release off' :
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# ser.write('\x00\x30\x00\x00\x00\x00')
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#-----------------------
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# add more commands here
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#-----------------------
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elif in_var_add == 'update' :
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ser.write('\x80\x00\x00\x00\x00\x00')
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out_resp = ser.read(72) # read 72 bytes
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#-----------------------
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# specify the number of bytes to be readout
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# nbytes = nregisters * 6
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#-----------------------
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out_split_resp = list(out_resp)
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print "Received: "
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ch_arr_resp = range(72)
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hex_arr_resp = range(72)
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for i in range (0,72):
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ch_arr_resp[i] = ord(out_split_resp[i])
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hex_arr_resp[i] = hex(ch_arr_resp[i])
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for x in range (0, 67, 6):
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print repr(hex_arr_resp[x]).rjust(2), repr(hex_arr_resp[x+1]).rjust(3), repr(hex_arr_resp[x+2]).rjust(4), repr(hex_arr_resp[x+3]).rjust(5), repr(hex_arr_resp[x+4]).rjust(6),
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print repr(hex_arr_resp[x+5]).rjust(7)
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else :
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print "unkown command, try again"
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elif in_var_add == '\x1d' : #ctrl+]
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print "...connetion closed..."
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ser.close()
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break # exit app
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