Vivado 2020 "No ARM Processor Found in Design"

Question

I've created a simple design in Vivado 2020.2 that consists of a Microblaze, UART, SPI and LEDs. I enabled interrupts but haven't yet utilised the triggers.: all went well and bitstream was generated, which I then exported along with the hardware.

Once exported I switched across to Vitis IDE and created an Application Project, importing my XSA hardware and selecting the 'Hello World' project. Programming the hardware also seemed to work correctly. However when I run the 'Hello World' example I get an error and I'm unsure what it relates to or how to fix it.

My target board is a Digilent Arty Z7 although my design is not utilising the Zynq.

Any suggestions on how to resolve would be very much appreciated, I can post additional info if required. I also have found only one mention of the same error when searching the internet; this was posted a few days ago and the design and error are almost identical to mine...sadly no replies to that yet, although I will watch and see.

Fred27 · Answer

The initial error message suggests that your hardware contains a MicroBlaze processor but that Vitis has been configured to compile code for the Zynq hard processor. It's difficult to diagnose any further without seeing your software setup. If it helps, I created a video walk-through of creating a MicroBlaze core in Vivado 2020.1 as part of this road test: Cmod S7: Breadboardable Spartan-7 FPGA Module - Review Obviously it's for the Cmod S7 rather than the Arty Z7 although the process should be exactly the same.

The strange behaviour once you added a Zynq wrapper is something else though. I'd have expected your code to run on one of the processors at least!

noureddine-as · Answer

I stumbled upon a similar issue with Microblaze-V when I tried to run a SW app with default settings. The latter include initializing and post-initializing the PS7 (processing system on Zynq targets) by default. You have to untick those when you have no PS7 system in your design. 
 See the ps7_init and ps7 post init in the screenshot below. 
 I hope this helps.

brhn · Answer

https://adaptivesupport.amd.com/s/article/69133?language=en_US https://www.hackster.io/news/microzed-chronicles-combining-microblaze-the-zynq-mpsoc-94501295dd3 https://adaptivesupport.amd.com/s/question/0D54U00006At4VuSAJ/zynq-ultrascale-mpsoc-with-microblaze-uart-connection?language=en_US may be, These can be help you.

Vivado 2020 "No ARM Processor Found in Design"

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