charkster

I was able to program the spi flash memory on the cmod a7 by compiling xc3sprog from source on my raspberry pi. Here are the steps I used:
(1) install libftd2xx drivers
download libftd2xx-arm-v7-hf-1.4.22.gz and follow instructions in ReadMe.txt

(2) Download xc3sprog from github
sudo apt update
sudo apt install build-essential libusb-dev libftdi-dev libgpiod-dev wiringpi git cmake
git clone https://github.com/matrix-io/xc3sprog

(3) Modify progalgspiflash.cpp
add case 0x16:

     case 0xba:
        fprintf(stderr, "Found Numonyx N25Q Device, Device ID 0x%02x%02x\n",
                fbuf[1], fbuf[2]);
        switch (fbuf[2])
          {
          case 0x16:
            pages = 16384;
            sector_size = 65536;
            break;

(4) Compile xc3sprog
mkdir xc3sprog/build
cd xc3sprog/build
cmake ..
make
sudo make install
(5) Run the program command with the "-I" option, using the attached first.bit to help detect the spi flash rom.
xc3sprog -c jtaghs1_fast -Ifirst.bit
xc3sprog -c jtaghs1_fast -I your_design.bit
 
Works like a charm.
I have attached the xc3sprog compiled to run on raspberry pi (it still needs the libftdi1 library to be installed... sudo apt-get install libftdi1).
first.bit run_first_spi_flash_cmod_a7.sh xc3sprog
The first.bit file was created by taking this VHDL design from the github xc3sprog repo: xc3sprog/bscan_spi/bscan_xc7_spi.vhd and making it into a bit file using Vivado (with the target being the CMOD A7 board). I have included the constrants file "constr.xdc" which I used to create the first.bit file.
 
constr.xdc

Hi @JColvin,
Thank you very much!! I should have looked at the schematic. I raised pin 15 voltage to 3.3V and saw full range on the 12bit value. I have a really good XADC configuration which is working well for me. I will post it tomorrow if others are interested. It converts a single channel continuously and has a data valid signal.... very simple.
Great support is why my company buys Digilent.

I was able to program the spi flash memory on the cmod a7 by compiling xc3sprog from source on my raspberry pi. Here are the steps I used:
(1) install libftd2xx drivers
download libftd2xx-arm-v7-hf-1.4.22.gz and follow instructions in ReadMe.txt

(2) Download xc3sprog from github
sudo apt update
sudo apt install build-essential libusb-dev libftdi-dev libgpiod-dev wiringpi git cmake
git clone https://github.com/matrix-io/xc3sprog

(3) Modify progalgspiflash.cpp
add case 0x16:

     case 0xba:
        fprintf(stderr, "Found Numonyx N25Q Device, Device ID 0x%02x%02x\n",
                fbuf[1], fbuf[2]);
        switch (fbuf[2])
          {
          case 0x16:
            pages = 16384;
            sector_size = 65536;
            break;

(4) Compile xc3sprog
mkdir xc3sprog/build
cd xc3sprog/build
cmake ..
make
sudo make install
(5) Run the program command with the "-I" option, using the attached first.bit to help detect the spi flash rom.
xc3sprog -c jtaghs1_fast -Ifirst.bit
xc3sprog -c jtaghs1_fast -I your_design.bit
 
Works like a charm.
I have attached the xc3sprog compiled to run on raspberry pi (it still needs the libftdi1 library to be installed... sudo apt-get install libftdi1).
first.bit run_first_spi_flash_cmod_a7.sh xc3sprog
The first.bit file was created by taking this VHDL design from the github xc3sprog repo: xc3sprog/bscan_spi/bscan_xc7_spi.vhd and making it into a bit file using Vivado (with the target being the CMOD A7 board). I have included the constrants file "constr.xdc" which I used to create the first.bit file.
 
constr.xdc