Hello Anas, 

This typically happens if an input voltage is getting applied to the EVM which is above 5V or a short of the 5V has occurred on the board. 

The only way to recover from that is to start replacing parts which are connected to the 5V rail and remove the short to GND this way. 

Best regards,

Nadine 

Hi Nadine,

Many thanks for your reply and your guidance.

Due to some time limitations, I had to operate another brand new EVM I had. Using "PW172KB0503f01" as a power adapter, the main board seemed to work properly alone. Once the DLP board was attached, DLPA2005 blew up and there was some smoke. Any idea why this happened? 

Kind regards,

Anas

Hi Anas, 

Did you have an optical engine with LEDs connected when operating the board?

Thanks, 

Brandon

Hi Brandon,

No. It was just the DLPDLCR2010EVM-PCB.

Regards,

Anas

Hi Anas, 

That would do it! The DLPA2005 board requires an LED load to operate properly. The EVM should not be oeprated without an optical engine with LEDs attached. 

Thanks, 

Brandon

Hi Brandon,

Thanks a lot for the reply. 

In fact, I will not use the board as a projector. Instead, I will use it to build an optical system which does not require any LEDs. Do you have any advice for that?

Otherwise, I will have to connect the LED loads without using them.

Many thanks in advance.

Kind regards,

Anas

Hi Brandon,

Another question, am I expected to connect a light sensor to J4? 

Kind regards,

Anas

Hi Anas, 

For correct operation of the DLPA2005, LEDs are required. One way you may be able to not have LEDs connected would be to connect diodes with similar characteristics instead of the LEDs. We have not tested this, as we always have LEDs connected. 

As for J4, a light sensor is only required if you would like to use the white point correction feature.

Thanks, 

Brandon

Hi Brandon, 

I was checking the schematics of the DLPNIRNANOEVM and I noticed that for DLPA2005, pins 37, 38, 39, 41 and 42 are not connected to any LEDs. These are typically the pins that power the LEDs up in the DLPDLCR2010EVM-PCB. Hence, I am afraid that connecting these pins to LEDs will not solve the problem. I did not try to power the board on as I am afraid that the new DLPA2005 would blow up again!

Thanks for your help.

Kind regards,

Anas 

Hi Brandon, 

I replaced the DLP board with a brand new one then connected the LEDs as recommended to J2. The board works now and LEDs D15, D16, D5 and D7 turn on when the board is live and the projector is on. However, after connecting the board to my PC, the provided GUI tool recognized DLPC3430 as shown in the attached file but did not recognize either the DLPA2005, EVM software or the EVM firmware. Will it be possible to fix that?

Thanks in advance.

Kind regards,

Anas

Hi Brandon, 

I replaced the DLP board with a brand new one then connected the LEDs as recommended to J2. The board works now and LEDs D15, D16, D5 and D7 turn on when the board is live and the projector is on. However, after connecting the board to my PC, the provided GUI tool recognized DLPC3430 as shown in the attached file but did not recognize either the DLPA2005, EVM software or the EVM firmware. Will it be possible to fix that?

Thanks in advance.

Kind regards,

Anas

Hi Anas, 

Do you have a DMD connected in addition to the LEDs?

Thanks, 

Brandon

Hi Brandon,

No actually. I didn't connect it. I will connect it and try again.

Thanks for your help.

Kind regards,

Anas

Hi Anas,

No problem! The DLPC3430 shuts down when a DMD is not detected, so that is likely why you were not able to communicate with the DLPC3430 over the GUI.

Thanks, 

Brandon

Hi Brandon,

But is it normal that the EVM software and EVM firmware are 0.0.0?

Kind regards,

Anas

Hi Brandon, 

As the software did not recognize the EVM software nor the firmware, I tried to install the firmware on the external Flash memory I installed. Hence, I tried to do that through the software and I got these messages. 

Unfortunately, this did not work. Do you have any idea how to solve this issue? 

Kind regards,

Anas

Hi Anas, 

Were you able to connect a DMD in the system? Please try this an see if the EVM creates an image. 

If you connect the DMD and no image is created by the system, you may have corrupted the image. To fix this, power the EVM on but do not flip the proj_on switch and try to re-download the image. 

Thanks,

Brandon

Hi Brandon, 

Unfortunately, this did not work. To summarize, the problem now is that the software does not recognize neither the EVM firmware nor the EVM software, is this normal for DLPDLCR2010EVM-PCB? 

In addition, I am not able to install the firmware through the software. Finally, there is no image shown on the DMD even after re-downloading the image. I am not sure if the image is re-downloaded successfully as it is not shown in the software.

Thanks in advance. 

Kind regards,

Anas

Hi Anas, 

Thank you for your quick reply. Let me summarize this situation to make sure I understand everything correctly, as you have tried many different things to get your EVM working. I have not seen the firmware version read back v0.0.0 before and I do not believe this is normal. 

1. You purchased a DLPDLCR2010EVM-PCB EVM from TI store or a distributor. 

2. You tried to power on the EVM (without LEDs or a DMD connected) and that caused damage to the EVM. 

3. You replaced the DLP board with a new board, and tried to communicate with the EVM. The GUI was able to read a DLPC3430 controller in the system, but the DLPA2005 and DLP2010 DMD was not recognized. 

Where did you get this new DLP board? Did you purchase an additional DLPDLCR2010EVM-PCB, or did you fabricate your own board?

4. You tried to install the DLPC3430 firmware on the external flash memory. 

Can you detail the procedure for this? Did you remove the memory from the board? Where did you get the firmware to install?

Thanks, 

Brandon

Hi Brandon,

Many thanks for your reply!

I bought an EVM from Mouser and powered it on without connecting any LED or DMD. Hence DLPA2005 blew up. Therefore I had to replace it by a new one and solder it to the board. In addition, I bought another EVM from Mouser too. Hence, I have two EVMs now. After that, I connected both the LEDs and DMD and powered both boards on. The power consumption was around 105mA with the projector on. Connecting the boards to the PC, I found that the tool did not recognize neither the software nor the firmware of the EVM. This held for the PMIC and the ambient temperature fields in the GUI. I doubted , as there was no flash memory, probably the software and the firmware need to get installed manually on the flash memory. Hence I tried using the GUI Tool. This operation used to fail as shown in the previous attachments.

Can you help me with this issue?

Kind regards,

Anas

Hi Anas, 

Was the entire system only drawing 105mA on both boards (replaced DLPA2005 board and new board), or just the DLPC3430 board? On either of the boards, when connected to the PC, did the EVM GUI tool recognize the software version? 

It sounds like the GUI tool you are using isn't even recognizing the DLPDLCR2010EVM-PCB straight out of the box. Can you confirm this?

Thanks, 

Brandon

Hi Brandon,
The entire system was consuming those 105 mA, the two boards together along with the DMD and LEDs and while the USB is connected.
That's true that the software is not recognizing the EVM. However, it shows that the status is connected and ready. And that the GUI version is 7.4. this is typically what it shows,

Kind regards, 

Anas

Hi Brandon,
The entire system was consuming those 105 mA, the two boards together along with the DMD and LEDs and while the USB is connected.
That's true that the software is not recognizing the EVM. However, it shows that the status is connected and ready. And that the GUI version is 7.4. this is typically what it shows,

Kind regards, 

Anas

Hi Anas, 

The entire system should be consuming much for than 105mA. I expect something about 5 times this number when running the system. You said you were able to get an image on the DMD correct? Can you please take a picture of your system and reply to this thread? I believe something may not be connected correctly.

Thanks, 

Brandon

Hi Brandon,

Indeed the whole system consumes only 105 mA. Unfortunately there was no image at all displayed on the DMD. I will take a picture and send it in the post, no problem.

I have a further question, for the EVM you already supply it without a flash memory. Where is the firmware stored then?

Kind regards,

Anas

Hi Anas, 

If you are not able to get an image on the wall, then there is something not set up properly in your system. Have you installed a flash memory IC on the light engine? The flash memory IC is on the light engine on this EVM. 

Thanks,

Brandon

Hi Brandon, 

Here is the EVM along with all the connections.Yes indeed I installed a flash memory IC in the rigid-flex board. 

Kind regards,

Anas

Hi Anas, 

Thank you very much for posting the picture of your system. Which flash memory IC did you install? Are you sure the pin mapping of the flex connector you used in your system is consistent with the DLPDLCR2010EVM? I believe your flash memory isn't communicating with the DLPC3430 controller and the cause may be due to the flex pin map.

Also, what is the power rating on the LEDs you connected? What is their turn on voltage? I'm afraid the LEDs you chose may damage the DLPA2005. 

Thanks, 

Brandon

Hi Brandon,

Many thanks for your reply!

The pin mapping I of the EVM socket I got it from the schematic files of the EVM published on TI's website. The flash memory I am using is "MX25U8033EBAI-12G". You can find its datasheet in the attachment. 

MX25U8033E, 1.8V, 8Mb, v1.8.pdf

For the LEDs, their turn on voltage is 1.8V.

Another info, the power consumption of the main board only (the bottom one) without the DLP board attached, is 75mA while the projector is off and about 85mA while the projector is in. Maybe this can help!

Kind regards,

Anas

Hi Anas, 

Thank you for providing the part number. That flash IC is supported by our controller. Have you confirmed the flash IC is being powered?

What is the part number of the DMD you purchased? What version of the DLPC3430 software are you trying to load?

Can you please describe your procedure for loading the DLPC3430 firmware? You should not need to update the software, as this is loaded prior to manufacturing the PCB.

Thanks, 

Brandon

Hi Brandon, 

Thank you for your reply.

Measuring the VFLSH, it is found to be 3.3V. The reason why I chose this particular flash memory was the similarity to the the "not installed" memory on the schematics of TI, the  "W25Q16DWSSIG". They both operate at 1.8V. However, TI assigned 3.3V to VFLSH. 

The DMD I have purchased is DLP2010.

As it is a new flash IC, I do not load the firmware. So typically, I connect the DMD and the LEDs, power the EVM on, turn the projector on then connect it via USB to my PC. 

Kind regards,

Anas

Hi Brandon, 

Many thanks for your reply and your help. I have purchased "W25Q16JVSSIQ" and will solder it as you suggest to the DLP board on the EVM. After that I will follow the steps you recommended and see how it goes. 

Kind regards,

Anas

Hi Anas, 

Sounds good. 

Thanks, 

Brandon