##   ## 
 ## # ## 
 ####### 
 ####### 
  ## ##  
         

         
  ####   
 ##  ##  
 ######  
 ##      
 ##      
  ####   
         

 ______
|___  /
   / / 
  / /  
./ /___
\_____/
       
       

 _____ 
(  _  )
| ( ) |
| | | |
| (('\|
(___\_)
       
       

__   __
\ \ / /
 \ V / 
  \ /  
  | |  
  \_/  
       
       

IMPORTANT: enter the case-INsensitive alphabetic (no numbers) code AND WRITE SOME SHORT summary of changes (below) if you are saving changes. (not required for previewing changes). Wiki-spamming is not tolerated, will be removed, so it does NOT even show up in history. Spammers go away now.


Visit Preferences to set your user name
Summary of change:
I have v3.3 new board vith some problems: the board don't work: no communication with pc, no lcd characters(just 2 lines on lcd). In BrayTerm i have <0> and the board don't respond to any command. *Common mistake is forgetting to capitalize '''Man''', wrong com serial port selected or some other program open that is using that serial port (MegaTune, AVR studio4 etc.) After i enter in Boot mode (loopback the rs232 board)the board respond and everithng is ok : say 'S' report back AVREFI1, say 'v', report "20". After that i try to update the firmware .i update with psituner and afterthat with perl (perl bin/prog.pl vems.hex :COMn Etwf) 3 diferent files of vems.hex and NOTHING. WHat is my Problem Now? The boot need to be updated?(it is posible to lose some information when i connect and disconnect rapidly the board Please help *I am definatly lower on the I.Q. rating than most people here and I have had my share of problems that I cant figure out so in my experience, if you give a very detailed list of the steps you are taking, ie. #opened terminal program, set baud rate to 9600 #typed Man #typed Manmcbffmcb, changed to 19200baud etc etc then you will find the help from smart people alot more forthcoming and alot more helpfull. *also, if you havent found it yet, see [http://www.vems.hu/wiki/index.php?page=MembersPage%2FJohanEriksson%2FVerThreeFirmForDummies this page] for help with uploading firware. I am not computer smart and I easily figured it out with the help of that page. I update 1.0.18 firmware and nothing ;the board respond only in boot mode . '''Ideas:''' I recommend complete package with more recent firmware, see bat files for megaloader syntax, you need to remove "t" from the syntax, as you already have it in bootloader in advance. http://media.vems.se/code/VemsMT1.0.36.zip for example After i upload 1.0.36 file vems.hex with perl command(perl bin/prog.pl vems.hex w) in command window i have: total serious errors during write: 0 VERIFYING... error at page 0 255,128,0,0 137,239,205,79error at page256 0,0,0,128 0.63.52.141verified<0 101632> total serious errors at verify: 2 FAILURE we say E
Optional: Add document to category:
Wiki formatting: * is Bullet list ** Bullet list subentry ... '''Bold''', ---- is horizontal ruler, <code> preformatted text... </code> See wiki editing HELP for tables and other formatting tips and tricks.