Author Topic: New to TE0722 in combination with TE0790, it works but some questions remain  (Read 55 times)

bstuif

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Hi I am new to the TE0722 in combination with the TE0790,

I got it working, which means the Zynq is recognized from Vivado and I am able to load my own bit-file directly into the FPGA.

However some questions remain:
1) Especially after I load the precompiled bit file, the FPGA becomes hot quickly. Its temperarture will settle just above 81 degrees celcius. Is this proper and expected behaviour?
2) Intermittently the connection is lost and the FPGA reloads its configuration, is this due to the limited power supply, because only the TE0790 is providing power?
3) Is it possible to program the S25FL127SABMFI101 QSPI FLASH directly from Vivado? If so, is there a compatible FLASH device that I can select, because Cypress is not in there.

Thanks for your help!


JH

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Hi,

Quote
1) Especially after I load the precompiled bit file, the FPGA becomes hot quickly. Its temperarture will settle just above 81 degrees celcius. Is this proper and expected behaviour?
60-70 is normal because it's very small. 
PS: you can not load only bitstream, if you do this you has a mixed design. PS configuration from a very old demo which is shipped at the moment and your PL design. --> You use PS-PL CLKs from the older design, not from your Vivado design configuration.
Start with the reference design (Download includes also Boot.bin for QSPI) flash (correct flash setup for your assembly version, see -->test_board/board_parts/board_files/TE0722_board_files.csv odf the download)
--> https://wiki.trenz-electronic.de/display/PD/TE0722+Test+Board
Pay attention when you create your own FSBL,TE0722 is without DDR, FSBL must be modfied see:
https://wiki.trenz-electronic.de/display/PD/DDR+less+ZYNQ+Design

Quote
2) Intermittently the connection is lost and the FPGA reloads its configuration, is this due to the limited power supply, because only the TE0790 is providing power?
you should not use XMOD for power supply (it's works only for very small designs):
https://wiki.trenz-electronic.de/display/PD/TE0722+Getting+Started

Quote
Is it possible to program the S25FL127SABMFI101 QSPI FLASH directly from Vivado? If so, is there a compatible FLASH device that I can select, because Cypress is not in there.
yes, correct flash setup for your assembly version, see -->test_board/board_parts/board_files/TE0722_board_files.csv odf the download
--> depending on your vivado version the name can be slightly changes.
See also Xilinx documents for programming:
https://wiki.trenz-electronic.de/pages/viewpage.action?pageId=14746264#Vivado/SDK/SDSoC-XilinxSoftwareProgrammingandDebugging

br
John