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TE0703 + TE0715 MIO Pin

Started by Mhrc, July 01, 2019, 09:00:29 AM

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Mhrc

Hello,

i would need a MIO Pin (only to read high/low) on TE0703 Board - TE0715 Module combination.
I read multiple documents TRM, Schematics etc. and i am still not sure if i can use a MIO pin on this setup.

MIO10 and MIO11 are routed from the Board Connector to CPLD and Module. But there is an TCA9517 Level-Shifting I2C Bus Repeater between them and these pins are not even used in CPLD, according to the firmware doc.
MIO12 and MIO13 are also routed to CPLD and are connected as X16 and X17 to the Board-Connector. But i don't know what the CPLD is doing with these signals.

I just need one MIO-Pin to read high/low level on PS, EMIO is not an option.

Regards mhrc

JH

Hi,
TE0715 CPLD description of the newest version: https://wiki.trenz-electronic.de/display/PD/TE0715+CPLD
TE0703 CPLD description  of the newest version: https://wiki.trenz-electronic.de/display/PD/TE0703+CPLD+-+CC703S
PS: The source code is also available on the download area for the carrier TE0703, in case you want to change it.
br
John

Mhrc

Thank you, John.
According to the VHDL source code MIO12 and 13 are just routed through the CPLD to X16 and X17.
Now i just need to check the CPLD Bank Voltages.