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Forum Index : Microcontroller and PC projects : TxD RxD Buffer

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BishopXXL
Newbie

Joined: 13/01/2019
Location: Germany
Posts: 39

Posted: 03:28pm 07 Apr 2022

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Hi all,
Is there a txd register in the pico(mite) / I'm sure there is! which I can read in basic so I know when the byte left the buffer.

BTW, this is about switching from RE/DE to RS485 communication.

Thx @ all

BishopXXL

SetPin GP1, GP0, Com1
SetPin GP2, Dout
Open "Com1:115200,1024" As #8

Pin(gp2) = 0

For i = 65 To 68
� Pin(gp2) = 1 � � �' RED
� Print #8, Chr$(i) ' YELLOW
� Pin(gp2) = 0 � � �' RED
Next i

Edited 2022-04-08 01:34 by BishopXXL

matherp
Guru

Joined: 11/12/2012
Location: United Kingdom
Posts: 10620

Posted: 03:32pm 07 Apr 2022

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Check the LOF function

BishopXXL
Newbie

Joined: 13/01/2019
Location: Germany
Posts: 39

Posted: 03:37pm 07 Apr 2022

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THANKS !!!

Ashes on my head, yeah that had asked before SOOOORY

BishopXXL

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10620

Posted: 03:39pm 07 Apr 2022

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Its not quite perfect as it will only show when the last character has been moved from the buffer into the UART shift register so depending on application you may then need to wait for the bits to clock out which can be calculated from the baudrate

BishopXXL
Newbie

Joined: 13/01/2019
Location: Germany
Posts: 39

Posted: 04:25pm 07 Apr 2022

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Hi matherp,
yes thanks for the tip, that's what I thought when I saw it.

Thank you for your GREAT work on the Picomite !!!!!! Iloveit

BishopXXL

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