7c81 with Raspi 4 UART connect to RS422 Port 0

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5 years 6 months ago #206446 by HarryXS
Replied by HarryXS on topic 7c81 with Raspi 4 UART connect to RS422 Port 0
Yes, a realtime HAL attached Interface would be nice for other boards than 7c8x too.
For now I leave the thread open too think about it one night.
Harry

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5 years 6 months ago #206508 by HarryXS
Replied by HarryXS on topic 7c81 with Raspi 4 UART connect to RS422 Port 0
One more short question:
To wich LOC on the FPGA are the RPi Tx, Rx and RTS routed to (RPi GPIO pins 8,10,11) ?
Sorry, couldn't find any documentation on this.

Harry

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5 years 6 months ago #206541 by PCW
Replied by PCW on topic 7c81 with Raspi 4 UART connect to RS422 Port 0
I'll add the FPGA pins to the manual when I get a chance
The following user(s) said Thank You: HarryXS

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5 years 6 months ago #206556 by HarryXS
Replied by HarryXS on topic 7c81 with Raspi 4 UART connect to RS422 Port 0
That would be awesome, thanks.
The Maxlinear RS drivers are quite good on the 7c81 and maybe we will be able to get really high speed on the bus.
Thanks

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5 years 6 months ago #206581 by PCW
Replied by PCW on topic 7c81 with Raspi 4 UART connect to RS422 Port 0
The manual will take a while but in the meantime:

GPIO14/TXD0 --> FPGA pin 29
GPIO15/RXD0 --> FPGA pin 27
GPIO17/RTS -->FPGA pin 26

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5 years 6 months ago #206648 by HarryXS
Replied by HarryXS on topic 7c81 with Raspi 4 UART connect to RS422 Port 0
Cool thank you, I'll post my results...

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