DLPDLCR4710EVM-G2: 按下SW21无法开机

Hello User,

Ensure all LED cables are securely connected to the electronics board. See that the DMD flex PCB is firmly fitted to the electronics board as well.

Please try flashing the EVM again with a compatible FW build.

Best,

John

Hi, all the cables and the DMD flex PCB are firmly connected.

Now I am trying to re-flash the EVM again,  I am following this thread:

https://e2e.ti.com/support/dlp-products-group/dlp/f/dlp-products-forum/1165865/dlpdlcr4710evm-g2-can-t-upload-firmware-through-gui

but I have some questions, 

1. Should I reflash the firmware using the DLP LightCrafter Display software?

2, I opened the DLP LightCrafter Display, and then the EVM with USB, then switch on the power, I found it seems can't find any projector in the software

Please help, thanks.

Hello User,

If the Light Crafter GUI is failing to connect, please try the GUI on this page: https://www.ti.com/tool/DLP4710EVM-LC.

Go to the FW tab, backup your current image if you haven't already, then attempt to program the EVM.

Best Regards,

John

Hi, thanks, I've downloaded the software DLP-EVM-GUI-3.2.0.7-Setup.exe as your guide. After I installed the GUI and used the firmware

dpp3439-dual-ASIC_7.3.2.img

which I downloaded from DLPDLCR4710EVM-G2 page and updated the firmware. It showed completed.

After I powered off and then powered on and then pressed the SW21, the issue remained the same: the light system did not seem to work.  

For your reference, I've attached other pages(information) here.

Please help, thanks!

Hello User,

Allow the team time to look into your feedback and provide next steps.

Best,

John

OK, thanks! I'll wait. When do I expect the reply?

Hello User,

You may need to connect directly to the flash IC and reprogram the unit.

We have a guide here. https://e2e.ti.com/support/dlp-products-group/dlp/f/dlp-products-forum/1119952/faq-spi-flash-device-with-soic-clip-guide-for-corrupted-devices

You are effectively connecting directly to flash IC and writing directly to it. This will require your PC, spi adapter, and clips to connect directly to flash.

Hi, thanks, I've connected via SPI. could you guide me where to find the image file to flash in?

I've written the image 

dpp3439-dual-ASIC_7.3.2.img

into both the Master and the Slave flash. but the same problem here. Could you check for me? thanks!

The verification process:

To make sure I've written successfully, I've read from the flash and saved the data file and attached here again. 

There are 4 files in the zip file, 2 (mater and slave) are before writing to flash, 2 are after writing.

I've compared the 4 files and they are identical.

Also I compared them to the dpp3439-dual-ASIC_7.3.2.img file with Notepad++, and Notepad++ said it's identical, although the I noticed that the file size of dpp3439-dual-ASIC_7.3.2.img is 7,888 KB while the file read from the IC is 8192 KB.

flash_data.zip

Hello Shuai,

I am still looking into this matter and the behavior seen. I can't reproduce on my side to emulate the issue seen here.

Best,

John

Hello User,

Can you use this tool to get a fail diagnosis on the system?

https://e2e.ti.com/support/dlp-products-group/dlp/f/dlp-products-forum/1304924/faq-new-dlp-pico-boot-and-hardware-diagnostic-tools?tisearch=e2e-sitesearch&keymatch=Pico%20diagnostic#

Best,

John

Hi, there are 2 tools in that link

1. DLP Boot Diagnostic tool

2. DLP Hardware Diagnostic tool

I am wondering which one I should use? Also, when I learn to connect with I2C or RS-232, I can't find a PCB Layout file to ensure the GPIO1, GPIO2, GPIO6, or the I2C pins. Could you help point out the PCB layout file? Thanks!

I've flashed DLPC34XX_BootDiagV1.0.0.img in by SPI, and now I'm stuck on how to get the diagnostic information out. Per the document, I should use a wire with USB(PC) to UART (EVM), but I don't know which interface I should use on the EVM board. Could you help?

Hello User,

GPIO 1 and 2 should be pulled high, meaning the output will go to HOST IRQ output pin. You can all read this signal from U25 on PIN 2 of the IC. U25 is located to the right of the green push button. It is a 5 pin leaded IC. You would connect your RX cable to this pin to get output from the firmware.

Best,

John