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Propeller DIP Chip Communication Error !! — Parallax Forums

Propeller DIP Chip Communication Error !!

SANSAN Posts: 29
edited 2014-09-01 20:30 in Propeller 1
Hello...
I have made one propeller board using P8X32A-D40 propeller dip chip. I referred the circuit diagram given in Propeller Education Kit Lab (pdf) [page 27] (in the Help tab of the Propeller tool).
And I am using Prop. Plug to program the chip.
The prop. tool is detecting my chip and its successfully loading the program into the RAM.
But when I am trying to load the program into EEPROM then one error(Communication Error) is coming " EEPROM verify error on COM6 ". I double checked my circuit diagram and soldering.

I am not able to find out the fault.
Can any one please help me to solve the problem..??

Comments

  • T ChapT Chap Posts: 4,223
    edited 2010-10-14 11:02
    San, do you have a way to post a clear photo of the board?
  • hover1hover1 Posts: 1,929
    edited 2010-10-14 11:03
    Did you include the 10K pullup resistor on the SDA PIN? And ALL 5 indicated pins to ground? Which EEPROM are you using?

    Jim
    SAN wrote: »
    Hello...
    I have made one propeller board using P8X32A-D40 propeller dip chip. I referred the circuit diagram given in Propeller Education Kit Lab (pdf) [page 27] (in the Help tab of the Propeller tool).
    And I am using Prop. Plug to program the chip.
    The prop. tool is detecting my chip and its successfully loading the program into the RAM.
    But when I am trying to load the program into EEPROM then one error(Communication Error) is coming " EEPROM verify error on COM6 ". I double checked my circuit diagram and soldering.

    I am not able to find out the fault.
    Can any one please help me to solve the problem..??
  • yarisboyyarisboy Posts: 245
    edited 2010-10-14 11:12
    I had an EEPROM chip fail. Plugged in a new one and was back up and running. Humidity here can go as low as 8% rel here so if you pet the cat on the same table as the bread board it can cost ya. I've also knocked out two Props in the last year. Got spares?
  • SANSAN Posts: 29
    edited 2010-10-14 11:15
    Hello... Jim

    Yah I have included the 10K resistor.. and I have connected all the 5 pins to the ground.....

    Oh Damn.... I have connected a wrong eeprom.... I have used 24LC16B ......
    I should have used 24LC256 ...... I got the problem.....
    Thank you ......
  • hover1hover1 Posts: 1,929
    edited 2010-10-14 11:33
    Good deal!

    Happy programming!

    Jim

    SAN wrote: »
    Hello... Jim

    Yah I have included the 10K resistor.. and I have connected all the 5 pins to the ground.....

    Oh Damn.... I have connected a wrong eeprom.... I have used 24LC16B ......
    I should have used 24LC256 ...... I got the problem.....
    Thank you ......
  • lightbringerlightbringer Posts: 10
    edited 2014-09-01 17:47
    I was having and I am still having the same problem - error no propeller chip on port. However today out of no where it just came through and said hello. I went wow and yeah then message came up checking ram and the terminal filled up with some code which seem to beg me to respond with ok. I select ok. Poof I get the error no propeller chip on port again. I'm back to where I started.
  • NWCCTVNWCCTV Posts: 3,629
    edited 2014-09-01 20:30
    @lightbringer, are you kidding me? This is like the fifth time I have found your EXACT same question in an old thread. Makes things VERY hard for anyone to answer you. Either start your own thread or wait for an answer from just one but do not keep posting the SAME question in multiple threads.
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