I am trying to access the W25Q128JVP flash on this board (r0.2.1) using a QSPI flash controller, but I want to confirm if there might be an easier way to do this. I want to send data to and from the board using the DFU interface, which lets me read and write to the flash. Is there an example of a QSPI flash controller that interfaces with the flash on this board, or will some existing controller such as this work? Or is there a way to interface with the DFU bootloader from within the FPGA fabric?
I don't think it's possible to write to arbitrary memory locations on the flash via DFU since this device doesn't implement DfuSe. The question I have now becomes: What is a good solution for sending data to/from the board from a host PC? There is not an FTDI chip on this board so the only solution I know of is to use a valentyusb core which I think exposes a uart interface to the FPGA. But I am not sure how to use this core without a SoC, all the examples I see demonstrate it's usage with liteX and a SoC.
I am trying to access the W25Q128JVP flash on this board (r0.2.1) using a QSPI flash controller, but I want to confirm if there might be an easier way to do this. I want to send data to and from the board using the DFU interface, which lets me read and write to the flash. Is there an example of a QSPI flash controller that interfaces with the flash on this board, or will some existing controller such as this work? Or is there a way to interface with the DFU bootloader from within the FPGA fabric?I don't think it's possible to write to arbitrary memory locations on the flash via DFU since this device doesn't implement DfuSe. The question I have now becomes: What is a good solution for sending data to/from the board from a host PC? There is not an FTDI chip on this board so the only solution I know of is to use a valentyusb core which I think exposes a uart interface to the FPGA. But I am not sure how to use this core without a SoC, all the examples I see demonstrate it's usage with liteX and a SoC.