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RAM checksum error? — Parallax Forums

RAM checksum error?

eagletalontimeagletalontim Posts: 1,399
in Propeller 1
I have just run into this error and found it may be a faulty chip, but I want to see if there is a way to verify this. I have just finished 5 identical boards and 4 out of the 5 worked perfectly. The chip is the QFP package and I double checked all the solder points and ensured their is no bridging or cold solder points. Anything else I can try before tossing this IC?

Comments

  • Cluso99Cluso99 Posts: 18,069
    Is the problem when you download the code to RAM?
    Otherwise, it could be the eeprom.
    Need more info about how you get this error.
  • eagletalontimeagletalontim Posts: 1,399
    When I tried to program it, I got the error. I did not try to replace the EEPROM since the RAM is inside the PROP.
  • Cluso99Cluso99 Posts: 18,069
    edited 2015-09-02 08:02
    Then I presume you mean it failed to download to ram (ie not download to eeprom)?

    If so, and the same code works to other boards, then yes the prop has a dead ram :(
    It would be the first one like this I have heard of.
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