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Part Number: DLP5531Q1EVM
When using the Cypress USB to I2C tool (IC: CY7C65215-32LTXI). DLPC230 Control program, the error code: 74 is displayed when reading the DMD information. Unable to control DMD with I2C communication.
However, the .bin code can be programmed for FLASH.
Thanks.DLPC230 I2C 20190815.pptx
The DLP5531Q1EVM comes flashed with the current version of embedded software. Can you confirm what version you flashed to the EVM? Was this issue happening before or after you updated the flash?
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In reply to JakePulliam:
After updating Flash
Embedded Software version
DLP Composer (Automotive) 184.108.40.2063
In reply to Samson Lee:
Ok, thank you for the update. I need to do some investigation. It looks like the software is generating too many clocks but I'm not sure why. I'll need to see if I can replicate the issue first. I'll try to provide an update early next week.
I believe I have tracked down the issue. It looks like this is an issue with the firmware of the CY7C65215-32LTXI. If you are running version 220.127.116.11 please upgrade to 18.104.22.168. Please reach out to Cypress for support for updating their firmware.
I have asked Cypress, but I have not received a reply from Cypress for more than 1 week. I want to try another IC. Which "USB to I2C" ICs have "Control program" support, can you help confirm?
The only USB 2 I2C chip supported in the control program is the Cypress. If you would like to use another device then you would need to write your own command handler software. The I2C command interface is fully described in the DLPC230 Programmers Guide http://www.ti.com/lit/pdf/dlpu048.
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