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News: Glomation introduced new wireless ready low cost GESBC-9260S

[davecramer]

davecramer

davecramer

• Guest

Is UART 1 rs232 levels or 5 volt ?

Dave

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• Super Hero
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The UART port 1 of GESBC-9260S is connected to USART 0 of the AT91SAM9260 CPU.  4 signal lines are available on this port, TX, RX, RTS, CTS.  The signal levels are RS-232 levels.   The Linux device node for the port is ttyS1.

[davecramer]

davecramer

davecramer

• Guest

So this is +- 12v coming out of the USART0 port ? There's not a level translator in between ?

The reason I ask is that if I change the console to /dev/ttyS1 nothing comes out ?

Dave

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The port has a RS-232 driver chip and it can interface directly with any RS-232 port.  Please check your command/configuration to make sure the console is redirected to ttyS1.

[davecramer]

davecramer

davecramer

• Guest

OK, so even using minicom I can't get anything out. I have set it to not use hardware handshaking. This port is vital to my application.

Do I need to loop back the hardware lines ?

Dave

[davecramer]

davecramer

davecramer

• Guest

Ignore this thread, I have it working, the connector was not correct.

Dave