LED lighting incorrect on non-standard gpio_bank_high/gpio_bank_low

[alexchartier]

Our LEDs work as expected (green on, blue flashing) with the following settings:
gpio_bank_high RXA
gpio_bank_low TXA

When we switch them (to provide the T/R signal polarity required by Wallops transmitters) all four LEDs light up continuously. However the radar appears to operate fine.

[kevinkrieger]

Hi Alex, it looks like the LED circuitry on the TXIO board will not work with active-low signals. Very sorry about this. We designed the board with active-high signals in mind, and did not expect to have it interface with an active-low style transmitter (didn't know they existed until yours).
At this point I don't have a solution for you.

[alexchartier]

No problem - just wanted to check. However I would suggest LEDs-off could be a useful option in the config-file.

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________________________________ From: Kevin ***@***.***> Sent: Friday, April 1, 2022 11:57 AM To: SuperDARNCanada/borealis ***@***.***> Cc: alexchartier ***@***.***>; Author ***@***.***> Subject: Re: [SuperDARNCanada/borealis] LED lighting incorrect on non-standard gpio_bank_high/gpio_bank_low (Issue #299) Hi Alex, it looks like the LED circuitry on the TXIO board will not work with active-low signals. Very sorry about this. We designed the board with active-high signals in mind, and did not expect to have it interface with an active-low style transmitter (didn't know they existed until yours). At this point I don't have a solution for you. — Reply to this email directly, view it on GitHub<#299 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/ABCK6UCUPEUUEYOHY3MDYK3VC4MGDANCNFSM5SCWASBQ>. You are receiving this because you authored the thread.Message ID: ***@***.***>