Tool/software:
Dear TI engineer：
Our company is using DLPC3432+DLPA3000, the DMD can not be lit, the test found that DMD_DEN_ARSTZ has no waveform, but the motherboard has once lit the DMD when testing waveform。
The SPI waveform is tested like this. It is suspected that download Img does not work. The model we used is ESMT EN25S32A-104HIP2S, please ask TI engineers to help check it, thank you!
Hello User,
I am not sure what DMD that is or what that number means. Usually with the DLPC3432 controller it is paired with the DLP230GP DMD.
Can you try going to the firmware selector tool and downloading and testing the default firmware. I am also not sure the pin mapping you are using unless we have the schematic so you may have to try both options. I am not sure what is on the existing firmware you got from Anhua so it is hard to tell if it has the right parameters or settings.
https://software-dl.ti.com/dlp/pico-fw-selector/
Regards,
Alex Chan
Hello,
I will look into why that is, in the mean time could you please check that all of these signals from the DLPA3000 come up in the correct sequence and correct levels as dictated in the diagram below? Especially Voffset, Vreset, Vbias
Best,
Max
Hi,
I missed this part of your previous message:
I find RESETZ is 2.5v，but DLPC3432 IO voltage is 1.8v，this may damage the DLPC3432 ic?
Is this your only question then? In this case, this should be okay. DLPC3432 IOs are expected to be VINT which nominally is 1.8V:
And RESETZ is has a MAX rating of 3.6V:
Best,
Max
