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by moksha29
Wed Oct 24, 2018 9:48 am
Forum: Compute Module
Topic: RS485 Communication with Pi Compute 3L
Replies: 18
Views: 5251

Re: RS485 Communication with Pi Compute 3L

@danjperron

Sorry, my mistake!

it's RS485, not ethernet port.

I have connected both DE and RE together on GPIO13.

I have set GPIO13 high while WRITE and low while READ.
by moksha29
Tue Oct 23, 2018 5:06 am
Forum: Compute Module
Topic: RS485 Communication with Pi Compute 3L
Replies: 18
Views: 5251

Re: RS485 Communication with Pi Compute 3L

So am trying to established communication between my two boards(ie. one board ethernet port is connected to another board ethernet port) one as a transmitter and other as a receiver. Following code am using: Write.py: import time import serial ser = serial.Serial( port='/dev/ttyAMA0', baudrate = 960...
by moksha29
Tue Oct 16, 2018 10:51 am
Forum: Compute Module
Topic: RS485 Communication with Pi Compute 3L
Replies: 18
Views: 5251

Re: RS485 Communication with Pi Compute 3L

Is there any code through which I can read data on UART of raspberry pi from MAX485 or any library support?

Am unable to fetch the data.


https://drive.google.com/open?id=1c2Pbf ... juMIrDbi-l
by moksha29
Thu Oct 11, 2018 10:02 am
Forum: Compute Module
Topic: RS485 Communication with Pi Compute 3L
Replies: 18
Views: 5251

RS485 Communication with Pi Compute 3L

In my application, I am connecting multiple RS485 to Pi compute module through the multiplexer(just for selection of RS485) and finally connecting data lines to the MAX485 and then to pi on UART port (GPIO14, GPIO15) and RE/DE(GPIO13). But there is no such library or driver support for MAX485-TO-PI ...
by moksha29
Thu Oct 11, 2018 6:01 am
Forum: Beginners
Topic: How to do connect rs485 or max485 shield ??
Replies: 8
Views: 784

Re: How to do connect rs485 or max485 shield ??

@ phettme

Hello,

Can you give any python code which works for this module(max485)? Because am unable to get any data on UART of python.
by moksha29
Mon Oct 08, 2018 1:14 pm
Forum: Compute Module
Topic: USB [LAN9514I] Enumeration Issue in Compute Module 3L Custom Carrier Board
Replies: 14
Views: 2432

Re: USB [LAN9514I] Enumeration Issue in Compute Module 3L Custom Carrier Board

@John Westlake We also tried with the ESD protection removed but still no change. Thank you so much for such a humble offer but unfortunately, we won't be able to send our product so far. Although we are still trying to get out of this bug. But still, keep supporting us if we are missing some minor ...
by moksha29
Mon Oct 08, 2018 8:53 am
Forum: Compute Module
Topic: USB [LAN9514I] Enumeration Issue in Compute Module 3L Custom Carrier Board
Replies: 14
Views: 2432

Re: USB [LAN9514I] Enumeration Issue in Compute Module 3L Custom Carrier Board

@John Westlake

Hello sir,

We tied the CM3 USB OTGID pin to ground, but there is no change in behavior and USB is still not detecting.
by moksha29
Thu Oct 04, 2018 7:03 am
Forum: Compute Module
Topic: USB [LAN9514I] Enumeration Issue in Compute Module 3L Custom Carrier Board
Replies: 14
Views: 2432

Re: USB [LAN9514I] Enumeration Issue in Compute Module 3L Custom Carrier Board

@John Westlake: Sir we have tried adding up pull-up on the PRTCTL2 pin but there is no change , the bug is not resolved.

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