TE0720 petalinux UART comunication

[kmbm]

Hi,
I'd like to send and receive char using UART interface and I can't find any examples how to do this. Finally i'd like to do this in my c code, but firstly i am trying to send anything  from linux console  but i'm doing something wrong. Are there any tutorials or can anybody tell me how to do this? I would be grateful for any help

[Antti Lukats]

this seems to be generic Linux question not related to TE0720 ?

[kmbm]

Ok, so I have another question. I use TE0701-03 board and I can't  find any info in datasheet to which MIO the PMODs are connected. Do you have any informations about it

[Antti Lukats]

schematic page 14

there is one slot that is connected to MIO, please not that the default TE0701 carrier controller connects the onboard USB uart to MIO14 and MIO15, so if you need MIO14 and MIO15 to be used in the PMOD then carrier controller must be reflashed to release the MIO14 and MIO15.

There are 2 PMODs connected to PL, it is possible to route any EMIO peripherals to those pins

[kmbm]

I can't find the numbers of this pmod pins. And another question, how to route mio to the pmod pin?

[Antti Lukats]

you can not route MIO, mio are FIXED connections.

only EMIO can be routed via PL fabric.

for MIO pins on TE0701 look page 14 in TE0701 schematic.

[kmbm]

http://www.trenz-electronic.de/download/d0/Trenz_Electronic/d1/TE0710/d2/documents.html - the schematic has onlu 13 pages
And if i want to connect UART1->EMIO->PMOD how can i do this? Sory i have a lot of questions but i am new in zynq

[Antti Lukats]

TE0701 is base board.

you had link to TE0710 artix module??

if you want to connect UART via emio you need to configure PS in Vivado to route this UART to EMIO and then connect to PL IO pins in your design.

[kmbm]

I haven't found any other links

[Antti Lukats]

please look at Trenz Electronic Download area, TE0701 files are sure there!!

direct link

http://www.trenz-electronic.de/de/download/d0/Trenz_Electronic/d1/carrier_boards/d2/TE0701/d3/documents.html

[kmbm]

Thanks a lot, I haven't found it before.

And the last quetsion is how to route uart to emio and pmod pins

[Antti Lukats]

1 double click on PS7 in vivado, select EMIO for UARTx
2 then make this port EXTERNAL
3 assign pin in IO window