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Forum Index : Microcontroller and PC projects : How to clean purchased boards.

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Frank N. Furter
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Joined: 28/05/2012
Location: Germany
Posts: 949
Posted: 08:07am 26 Mar 2019
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@Grogster:

...that's why I'm label all the pins like that:

TxD_PC / RxD_PC or TxD_µC / RxD_µC

Frank
 
CaptainBoing

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Joined: 07/09/2016
Location: United Kingdom
Posts: 2170
Posted: 08:39am 26 Mar 2019
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  Grogster said  

TXD...RXD....with respect to....which end was it now?(rhetorical)
<snip>
I much prefer the SPI labels. MISO and MOSI


+1

I use them to distinguish, even though it is not strictly correct to do so on bog-standard serial.

What I also do (as I use a 3.5mm stereo jack for console connections) I use the old Tip/Ring notation as Tx/Rx but always wrt the PC end.Edited by CaptainBoing 2019-03-27
 
lizby
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Joined: 17/05/2016
Location: United States
Posts: 3378
Posted: 02:53pm 26 Mar 2019
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  Grogster said  I much prefer the SPI labels. MISO and MOSI - no way to confuse those so long as you read it right!


But (and I guess I should look it up), I've never known what MISO and MOSI stood for, so have the same problem as with Rx and Tx.

I'm guessing that in this context, MISO isn't "a traditional Japanese seasoning produced by fermenting soybeans with salt and koji (the fungus Aspergillus oryzae)".

Ok, for those as ignorant as I was before searching, MOSI: Master Out, Slave In; MISO: Master In, Slave Out. (Now if you can just get past the connotations of the historical meanings of master and slave.)

PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed
 
Grogster

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Joined: 31/12/2012
Location: New Zealand
Posts: 9610
Posted: 07:45am 27 Mar 2019
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Sorry, I should have defined what they meant. I just assumed you would know.
I have tended to adopt the SparkFun method for serial lines: TXO and RXI.
TXO is serial out, and RXI is serial in.
Smoke makes things work. When the smoke gets out, it stops!
 
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