Forum Discussion
New ContributorCyclone 10GX JTAG Programming
Hi, I am using Cyclone 10GX in one of my design. When I started testing my board, JTAG was not functioning properly. I could program Cyclone10 through JTAG at 1MHz but not beyond that.
I tried different pull up values for TMS & TDI (10K, 4.7K & 1K) but the response is same in all cases. Even at 1 MHz, I couldn’t program Micron Flash device.
I checked back my layout & below are the net lengths in the PCB.
JTAG_TCK: 3.3 inch
JTAG_TD0: 2.9 inch
JTAG_TMS: 2.7 inch
JTAG_TDI: 2.8 inch
I believe 0.5 inch trace length difference should not create any issues at 24 MHz JTAG speed.
I have attached my Schematics page. Please let me know if you have any suggestions for this issue.
Best regards,
Bhagavath
24 Replies
AnandRaj_S_IntelRegular Contributor
Hi Bhagavath,
Is your VCCPGM =1.8v?
Is auto detect working at higher frequency ?
Can you capture TCK,TMS,TDI , nSTATUS CONF_DONE & nCONFIG and attach ?
Regards
Anand
KBhag3Dear Anand,
Thanks for your response.
Yes, my VCCPGM is 1.8V. I have attached the FPGA Power section Schematics.
Auto detect also is working at 1MHz only.
I need some time to capture the images.
Best regards,
Bhagavath
- AnandRaj_S_Intel
Hi Bhagavath,
Good to know that you have solved the problem.
- Yes MT25QU is supported device.
- Have you set the MSEL pins of the FPGA devices to the AS configuration mode?
- The Generic Serial Flash Interface Intel FPGA IP core provides access to Serial Peripheral Interface (SPI) flash devices.
If still facing problem try to work with the example given in the link so that narrow down the issue.
Please do refer below link
https://www.intel.com/content/www/us/en/programmable/documentation/tkt1520669802999.html#rku1522581481513
Let me know if this has helped resolve the issue you are facing or if you need any further assistance.
Best Regards
Anand
- KBhag3
Dear Anand,
When the board is powered ON with MSEL pins in AS mode: nCONFIG is continuously high & CONFIG_DONE is continuous low. nStatus is going high & low like clock signal. The board is in continuous loop as shown in the attached image (Figure141 of Handbook). Writing the configuration data to FPGA is not happening.
nStatus will become high if I load .sof file through JTAG, as expected. Also CONFIG_DONE goes high after programming.
Best regards,
Bhagavath
- AnandRaj_S_Intel
Hi Bhagavath,
We can finally suspect the flash device.
Let me escalated this case to AE. I will get back to you on this soon.
Regards
Anand
- KBhag3
Dear Anand,
I have captured the top marking of the Micron Flash & the same is attached. Not sure if this will help.
Do you suggest any footprint compatible alternate part? I will quickly procure few of them & try if that helps.
Best regards,
Bhagavath
- KBhag3
Dear Anand,
I have some confusion now. Does this mean there is no Flash Device available for Cyclone 10 GX in AS Mode? Unfortunately, I am not in a position to change the design now. Will MT25QU be added in the supported list in near future? As you asked to try with MT25Q, can you suggest complete part no.? As I understand MT25Q devices are either QU or QL. I can't use QL as my voltage level is 1.8V. Also the chart says passive configuration is supported with MT25Q but my configuration mode is AS.
Need more support from you.
Best regards,
Bhagavath
- AnandRaj_S_Intel
Hi Bhagavath,
We are not telling that "No Flash Device available for Cyclone 10 GX in AS Mode" .
Micron MT25QU is not tested with cyclone 10 GX, we can't guarantee on its operation.
Try some other alternate device with same footprint.
Regards
Anand
- KBhag3
Dear Anand,
Does this mean the part I selected (MT25QU256ABA8ESF) is supported by Cyclone 10 GX but not validated yet by Intel? Do you suggest/Recommend any other footprint compatible device? Also, I want to know if you have any suggestion/corrections in my circuit related to Micron Flash.
Has any of your customer tested the AS booting with Micron Flash (with Cyclone 10 GX)?
I am sorry with too many questions but I am really stuck for last 3 weeks. I have time only till this week end to resolve the issue. I have designed 20+ Altera FPGA boards but never faced this type of booting issue till now.
Is it possible to support if I come there to Intel with one board?
Best regards,
Bhagavath
- AnandRaj_S_Intel
Hi Bhagavath,
Please try setting mentioned in below link also regenerated the programming file. (Delete all temporary folders)
https://www.intel.com/content/www/us/en/programmable/support/support-resources/knowledge-base/component/2018/how-do-i-enable-micron-s-mt25q-support-for-eol-of-epcq---256mb--.html
Regards
Anand
- KBhag3
Dear Anand,
I tried this but status is same.
Best regards,
Bhagavath
Afari6Hi,
I don't know if your problem is resolved but i read somewhere (i don't remember the document) that in fast mode (MSEL = 010) density need to be > 256Mb OR > 512Mb.
Perahps that can help you.
