spi_init error using AD7134_EVAL board with zedboard running no-os

OK, I now have the adapter cable to go between the AD7134 and zedboard.  However, I'm still getting the same error upon initialization of the spi interface.

On this command in ad713x.c

    if (!init_param->spi_common_dev) {
        ret = spi_init(&dev->spi_desc, &init_param->spi_init_prm);
        if (IS_ERR_VALUE(ret))
            goto error_dev;

What might be the problem with this code?

I started over and cloned the most recent no-os software from ad713x_fmcz and ran the make again.  My output is shown below.  Please let me know if this is what you would expect.

Please note the following lines during linking:

(1)     The system cannot find the file specified

(2)      make[1]: [../../tools/scripts/generic.mk:339: update_srcs] Error 2 (ignored)

C:\cygwin64\home\Steve\adi4\no-OS\projects\ad713x_fmcz>make
[00:00:00] Building for xilinx
[00:00:00] Evaluating hardware: system_top.xsa
[00:00:00] Creating and configuring the IDE project
arm-none-eabi-ar: creating ../../../lib/libxil.a
In file included from usleep.c:34:
xtime_l.h:65:9: note: #pragma message: For the sleep routines, Global timer is being used
   65 | #pragma message ("For the sleep routines, Global timer is being used")
      |         ^~~~~~~
In file included from xil_sleeptimer.c:32:
xtime_l.h:65:9: note: #pragma message: For the sleep routines, Global timer is being used
   65 | #pragma message ("For the sleep routines, Global timer is being used")
      |         ^~~~~~~
In file included from xtime_l.c:27:
xtime_l.h:65:9: note: #pragma message: For the sleep routines, Global timer is being used
   65 | #pragma message ("For the sleep routines, Global timer is being used")
      |         ^~~~~~~
In file included from sleep.c:31:
xtime_l.h:65:9: note: #pragma message: For the sleep routines, Global timer is being used
   65 | #pragma message ("For the sleep routines, Global timer is being used")
      |         ^~~~~~~
In file included from main.c:115:
zynq_fsbl_bsp/ps7_cortexa9_0/include/xtime_l.h:65:9: note: #pragma message: For the sleep routines, Global timer is being used
   65 | #pragma message ("For the sleep routines, Global timer is being used")
      |         ^~~~~~~
In file included from pcap.c:78:
zynq_fsbl_bsp/ps7_cortexa9_0/include/xtime_l.h:65:9: note: #pragma message: For the sleep routines, Global timer is being used
   65 | #pragma message ("For the sleep routines, Global timer is being used")
      |         ^~~~~~~
arm-none-eabi-ar: creating ../../../lib/libxil.a
In file included from usleep.c:34:
xtime_l.h:65:9: note: #pragma message: For the sleep routines, Global timer is being used
   65 | #pragma message ("For the sleep routines, Global timer is being used")
      |         ^~~~~~~
In file included from xil_sleeptimer.c:32:
xtime_l.h:65:9: note: #pragma message: For the sleep routines, Global timer is being used
   65 | #pragma message ("For the sleep routines, Global timer is being used")
      |         ^~~~~~~
In file included from xtime_l.c:27:
xtime_l.h:65:9: note: #pragma message: For the sleep routines, Global timer is being used
   65 | #pragma message ("For the sleep routines, Global timer is being used")
      |         ^~~~~~~
In file included from sleep.c:31:
xtime_l.h:65:9: note: #pragma message: For the sleep routines, Global timer is being used
   65 | #pragma message ("For the sleep routines, Global timer is being used")
      |         ^~~~~~~
[00:00:00]  Linking srcs to created project
The system cannot find the file specified.
The system cannot find the file specified.
The system cannot find the file specified.
make[1]: [../../tools/scripts/generic.mk:339: update_srcs] Error 2 (ignored)
[00:00:00] [CC] ad713x.c
[00:00:00] [CC] iio_ad713x.c
[00:00:00] [CC] iio_dual_ad713x.c
[00:00:00] [CC] axi_dmac.c
[00:00:00] [CC] spi_engine.c
[00:00:00] [CC] gpio.c
[00:00:00] [CC] axi_io.c
[00:00:00] [CC] delay.c
[00:00:00] [CC] xilinx_gpio.c
[00:00:00] [CC] xilinx_spi.c
[00:00:00] [CC] spi.c
[00:00:00] [CC] ad713x_fmc.c
[00:00:00] [CC] util.c
[00:00:00] [LD] ad713x.o iio_ad713x.o iio_dual_ad713x.o axi_dmac.o spi_engine.o gpio.o axi_io.o delay.o xilinx_gpio.o xilinx_spi.o spi.o ad713x_fmc.o util.o
make[2]: Nothing to be done for 'post_build'.
[00:00:00] Done (build/ad713x_fmcz.elf)

build/ad713x_fmcz.elf seems to have been generated. Try to run it.

Thanks,
Dragos

No response on the UART port when I do a "make run"

I get the errors shown above when I try to debug in Vitis.  Either way the code does not seem to run.

Hello Vick,

We managed to get the hardware up and running on our side. Indeed there is an issue on the spi side of the project.

Can you try the following patch:
https://github.com/analogdevicesinc/no-OS/commit/bb2bd9be4de0c002f2805cfe532ebcf6828a8bc2

If everything is fine, we will merge the fix on the master branch.

In my case, it solved the issue. Here is the serial output:

Regards,

Antoniu

Thanks.  Now I do have the code running properly and SPI seems to be happy.  However, my output is all 0.0V. 

The very first time after power cycling the board:

2nd run after power up:

3rd run:

4th run:

Hello Vick,

Did you connect anything at the input of the ADC channels so you can actually see if the samples are corresponding to the input voltage values? (at least for the first run after power cycle)

Also, are you re-programming the FPGA before each run of the code?

Regards,

Antoniu

Hello Vick,

Did you connect anything at the input of the ADC channels so you can actually see if the samples are corresponding to the input voltage values? (at least for the first run after power cycle)

Also, are you re-programming the FPGA before each run of the code?

Regards,

Antoniu