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| Pull UART TX to LOW for a second https://www.8devices.com/community/viewtopic.php?f=13&t=1107 |
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| Author: | Farley [ 20 Mar 2018, 07:29 ] |
| Post subject: | Pull UART TX to LOW for a second |
Hi there, i have a problem with an external device connected to carambola-2 UART. Sometimes the UART communication stops working for no reason. Anyway, there is a solution for that. When i pull the UART TX Pin to LOW for a second the communication starts again. Of course that is a workaround but at the moment i am running out of options. So what i want to do: Pull the UART TX Pin to LOW from time to time. Is it possible? How would i do this in the OpenWRT environment? Is it necessary to deactivate UART, use as GPIO and activate it again? Any help would be great. Thanks! |
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| Author: | codehero [ 17 Jul 2018, 13:43 ] |
| Post subject: | Re: Pull UART TX to LOW for a second |
Have you tried sending a UART BRK? (break condition) |
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