Smart vision developpement kit boot/ problem running SW app

Hi,

I just got a Smart Vision Developpement Kit featuring Picozed board with 7015 Zynq and I am struggling with a problem when trying to test my first design.
For now I just want to run a few GPIOs, open and send info via a COM link (UART).

By default the board is booting from an application stored on QSPI which transmits via GigE image from the camera (Sensor 2 image reference design).

When I try to program the FPGA HW from the vivado HW manager I have no change on my output (EMIO state), even though the programation is said succesfull into Vivado. There is no change.

So what I did is try to use only the SDK and there same thing I tried program FPGA and run application and it did not work.

I tried to run only the SW application and my application is not launched most of the time (I turn on a led on the board). Sometime I get error message like impossible to run ps7_init, sometime process keep running, sometime no error just no output.
What is weird is that from time to time I am successfull launching the SW application (led turn on and off), I was not able to understand why it worked at those time and not before.

Once SW app has been sucessfully launched once, I can program the PL part (this time I get EMIO pins which go low after download) and run SW again which in addition to light a led on the board also turns on and off 2 EMIOS output pins at same time. At this stage if I don't switch off my board I can change SW or HW programmation and it works good (though COM link is still not working for some other reasons probably). I was able to implement at that time a I2C control of a external device and it was working fine.
Problem appears again when I finaly switch off my board. I spend a few hours trying to program my board again and to understand why it works only from time to time several times already.

For now what I understand is that:
-The QSPI app once launched on the board (and working) prevent most of the time any launch of the SW).
-In order to be able to program my HW I must have launched my SW app once.

I must precise that I had a Microzed board for a few days before and I never had this kind of trouble with it. COM link as well was working fine.

Thanks for your help.
Ben

0 albertabeef over 10 years ago

Ben,
Please put the PicoZed 7015 SOM in the following boot mode : JTAG.
This can be done with the SW1 switch on the PicoZed SOM.
Refer to the PicoZed 7015 User Guide for more details:
http://picozed.org/sites/default/files/documentations/PicoZed%207015_7030_User%27s_Guide_v1.2_0.pdf
Regards,
Mario.
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0 Former Member over 10 years ago in reply to albertabeef

Hello Mario,

Thanks for your answer, your reply is pertinent indeed but I tried it at begining and as it was not working at all, I stopped and continued with QSPI Set up. Now that I have a better understanding of the impact I set SW1 to JTAG position and given JT4 resistor position I am actually in Cascade JTAG which from my understanding should be the right setup.
On my SVDK board I have JP6 set for SPI which seems fine given my JTAG connector. Now when I switch on the board all SVDK leds are on. I tried to program HW and run SW or just run SW several ways and I have no results. when I do a program HW it is sucessfull into vivado and DS1(done led on SVDK) board which turns on but I have no change on the other leds state which stays on or EMIO (alo on).
When I run SW it just do not work. Any other idea what other problem could prevent to prog HW or launch it in JTAG.
Thanks for your help.
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0 Former Member over 10 years ago

I take the oppportunity to post a last time on this topic as Xilinx FAE help me to solve out my problem. In fact their were two cause to my problems:
-default DDR preset which were incorrect were generating a bug into my design (even though DDR was not used in my code). We deactivated the DDR and it solved the problem.
-Linker script was not correct and needed to be regenerated.
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