Hi,
We have built a custom circuit board which uses DLPC3470.
We are mainly using the internal pattern mode without any problem.
The only weird thing is, even though we have updated the flash image by updating the splash image, when the proj_on is set to high,
the optical engine always starts by showing a checkerboard pattern first. Interestingly, it does not show the splashscreen at all.
I even tried to set the splash image via i2c, but it ended up showing nothing. (I used DLPC API and I followed the three step procedures )
Please note that I did the following things correctly:
- Update the correct firmware (verified by using the EVM or another board)
- Write the firmware correctly (verified by reading it again via SPI)
- Internal pattern mode is working fine
What can be the cause of the problem??