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TE0701 and TE0820 connectivity

Started by shp, June 09, 2021, 03:52:26 AM

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shp

Hi,

I am trying to find where the FPGA pins AC9 and AB3  (TE0820  board pins B64_L1_P and B64_L15_N respectively) connect on the carrier board TE0701. (schematic: https://shop.trenz-electronic.de/trenzdownloads/Trenz_Electronic/Modules_and_Module_Carriers/4x5/TE0820/REV04/Documents/SCH-TE0820-04-3BE21FA.PDF)

The information is not available in the pinout table: https://shop.trenz-electronic.de/trenzdownloads/Trenz_Electronic/Pinout/TE0701_FMC_PINOUT.pdf.

Eventually I want to use these pins for I2C commn but just wanted to make sure where these are connected on the carrier board.

Thanks,
Sharath


shp

Hi John,

Thank you for your response; it is very helpful.

I have a couple of components on my custom board with I2C interface whose SCL, SDA are connected to the FMC_SCL, FMC_SDA pins (C30, C31 on J10).

If I issue I2C commands from the FPGA (on TE0820 board), will the CPLD U14 pass on the the signals to FMC_SCL, FMC_SDA? (and eventually to the components on the I2C bus)

Thanks,
Sharath

JH

Hi,
Quotewill the CPLD U14 pass on the the signals to FMC_SCL, FMC_SDA? (and eventually to the components on the I2C bus)

yes, tree wire I2C to 2 wire I2C, see:
https://wiki.trenz-electronic.de/display/PD/TE0701+CPLD#TE0701CPLD-FMCI2C
br
John

shp

I get it now. Thanks again!

-Sharath