PMOD SF3 READ/WRITE Comparison Failure

[vc26]

Hi all,

I'm trying to use the pmod sf3 flash memory and I followed the pmod tutorial (with microblaze). I ran it in sdk and I get a failure saying that the read and write comparison is incorrect. I have my ext_spi_clk set at 50 MHz and I have attached a screenshot of my block diagram. I think I may have either connected the interrupt incorrectly or that the clock speed is incorrect. The specs say it can run up to 108 Mhz, but typical is 25 Mhz.

 

Thanks!!

[jpeyron]

Hi @vc26,

Instead of using a clock from the MIG for the ext_spi_clk make a 3rd output clock from the clocking wizard set at 50 Mhz. Also what board are you using?

cheers,

Jon

[vc26]

Hi @jpeyron,

Ok I will try that. For the block diagram, I am using an ARTY. However, I eventually want to transition it to a CMOD A7. Thanks!

[vc26]

Hi @jpeyron,

 

I tried that method and when I ran the main.c code (included in PMODSF3 folder), I'm still getting the "Quad-SPI Flash data read/write comparison error." I am going to try writing and reading with the commands and comparing the results manually. Please let me know if I'm missing something. Thanks!

main.c

[jpeyron]

Hi @vc26,

I have gotten the same issue. We will be looking into the PmodSF3 IP and see whats going on. What version of Vivado are you running. Did you have to change anything in the main.c for the PmodSF3?

cheers,

JOn

[vc26]

Hi @jpeyron,

 

I'm running it on Vivado 2016.2. Yes I did. I had to change "INT_ADDR XPAR_MICROBLAZE_0_AXI_INTC_PMODSF3_0_QSPI_INTERRUPT_INTR" to "XPAR_AXI_INTC_0_PMODSF3_0_QSPI_INTERRUPT_INTR." Also the interrupt address in ivt_t. I will attach what I'm currently running. 

 

main.txt

[jpeyron]

Hi @vc26,

I wanted to thank you for responding with your main.txt and to give you an update that we are still in the process of fixing the PmodSF3 IP core.

thank you,

Jon 

[vc26]

Hi @jpeyron,

I have gotten the IP to work. I have been able to run the QuadSPItest function as well as write/read data to it in general. Thanks for all your help!

 

PmodSF3.c

PmodSF3.h

[jpeyron]

Hi @vc26,

Thank you for the update and the code. I will pass this on to the engineer that is working on fixing the PmodSF3.

cheers,

Jon