[GSoC Daily Log]: Work Starts!

Thursday, 29th May 2014

  • Complete Assembly of VMOD-VGA PCB. Noticed 1 more problem in PCB soldering. One signal is unconnected with the resistor network P1, Signal: Red [R7]. Criticality Level: Low
  • Next, Tried the I2C Controller from here. Quite a few modifications had to be done! Success. Successfully wrote to 2 PCF8574A devices on same bus. [ISE Project: I2C_Test.xise]
  • The I2C Controller failed to compile for Spartan3A device. Preliminary inspection revealed XST bug for Spartan3 devices. Used Mimas (Spartan 6, XC6LX9). It successfully synthesized
  • [I3C2] Second attempt with cleaned code and on Mimas, Failed Again! (argh). Getting hard to debug root cause of problem. May be bus speed or tristate logic?

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