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Found 3 results

  1. Hi! A couple of months ago, I bought a ZYBO Z7-10 board for one of my university labs. Just recently, I was using the JE PMOD ports to interface with an external LCD display. The board was programmed through QSPI Flash through the micro USB port. Unfortunately, a external 5 volt supply leaked into the 3v3 JE PMOD peripheral when the board was powered through the micro USB port. I immediately turned off the power supply and the ZYBO board once this had happened. After turning back on the ZYBO with all PMOD connections detached (to test if the board was still functional), the default demo program that the FPGA should run (with flashing all LEDs in a smooth manner) is a very erratic version of what it once was (LEDs flash randomly). While in the QSPI Flash mode (after the incident), I am not able to reprogram my FPGA design as Vivado does not recognize the ZYBO board anymore through the USB connection. When I change the programming mode jumper to either TJAG or MicroSD, Vivado CAN recognize the ZYBO board and I can successfully field-program the board and run the program. Is it possible that I have permanently damaged the QSPI Flash (or even something worse). If not, is there anything I could do to fix this?
  2. Hi, I am trying to program basys3 from qspi flash. I have made a microblaze based system with qspi flash (BD attached) in vivado. I have tried the tutorial in this link below to make a qspi srec bootloader to put my application in flash. I have used FLASH_IMAGE_BASEADDR in blconfig.h as 0x47200000 (XPAR_AXI_QUAD_SPI_0_BASEADDR = 0x46000000 + offset = 0x01200000). However, I cannot program the flash for this address offset. The program fails with the error as "ERROR: [Xicom 50-47] Start address (0x01200000) is outside of the device memory range." However, if i try with small offset (0x00c0000) I can successfully program the flash but I don't get any output in terminal http://www.xilinx.com/support/answers/64238.html any help appreciated. thanks in advance,
  3. vc26

    Programming Flash CMOD A7

    Hi all, I programmed my flash recently, but the sdk .elf file didn't seem to be working so I attempted the whole process again. However, now my board seems to be stuck in somewhere not so good. When I plug the USB in, only a red led is on, compared to originally before flash, the orange done led was also on. Also, now I can no longer program the qspi flash in vivado hardware manager anymore. It always fails during the programming stage because the blank check fails. Is my flash stuck in some kind of mode? Also, how can I clear it and restore my fpga to it's original state? Thanks!