Part Number: DLPC150
I have used the DLPNIRNANOEVM as my reference to design a board. I currently only have the DLCP150 and DLPA2005 on a PCB. I am trying to test the I2C bus but I never see the device.
Do you have any suggestions?
I used the same schematic design that is in the DLPNIRNANOEVM, just did not have the mirrors and such yet, just testing the DLPC150.
Are you trying to access the DLPC150? If so, what address are you pinging? What are you using as an I2C host?
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In reply to Philippe Dollo:
We are using a Raspberry Pi Compute Module to communicate with the DPLC150 on a custom PCB. We are using the i2cscan tool that comes with the Raspbian to try and detect the DLPC150. As a “sanity check” we were able to successfully detect a BNO050 on the same i2c bus. We also tried using a python script and some example i2c addresses from the DLPC150 datasheet, however all attempts to read registers were unsuccessful.”
In reply to Richard Arnold1:
Based on your description above it sounds like you do not have the DMD (mirror device) connected to your system. The controller will not boot unless this device is connected, so your problem might just be that the controller isn't booting up in the first place. Can you confirm?
Yes we have had the mirror attached.
Hi, if you have the DLP2010 and DLPC150 both attached to your system, could you kindly check the various supply voltages, PROJ_ON input to the system and the HOST_IRQ output?
Thanks & Regards,Hirak.
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In reply to Hirak Biswas:
atI know the voltages are correct and present.
I am having my engineer check the PROJ_ON and HOST_IRQ lines. I will get back to you.
Thanks for the update, we will be waiting for your findings.
In reply to Mayank Khandelwal:
We have pulled the PROJ_ON high and it did not do anything.
We are measuring the IRQ.
Thanks for the update. Keep us posted.
we just probed DCPC_Host_IRQ and we got no electrical current going through it. I also looked at the DLPA2005ERSLT it seems that it's not outputting any voltage. Do you have any recommendations to continue?
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