# \#uart-buffer

**URL:** https://forums.digi.com/tag/uart-buffer/179.md

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## [What is the XBEE3 internal buffer size ( transmit and receive )](https://forums.digi.com/t/what-is-the-xbee3-internal-buffer-size-transmit-and-receive/19646)

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**Author:** [@rowifi](https://forums.digi.com/u/rowifi)\
**Replies:** 0\
**Last updated:** [June 26, 2018, 10:44am UTC](https://forums.digi.com/t/what-is-the-xbee3-internal-buffer-size-transmit-and-receive/19646 "2018-06-26T10:44:12Z")

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On the basis that one cannot change the RF data rate, and that the host CPU has to handle the serial data coming from the Zigbee - it makes sense to impliment a buffer on the host - but if the hosts baud rate is less tha…

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## [Xbee Zigbee througput very low](https://forums.digi.com/t/xbee-zigbee-througput-very-low/19581)

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**Author:** [@YFrickx](https://forums.digi.com/u/YFrickx)\
**Replies:** 0\
**Last updated:** [June 5, 2018, 2:40pm UTC](https://forums.digi.com/t/xbee-zigbee-througput-very-low/19581 "2018-06-05T14:40:29Z")

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When sending data from one router to the coordinator, I get very low throughput, in my C code on the microcontroller i send datapackets of 7 byte at a frequency of 62.5 Hz via uart to the zigbee, the baud rate is 4800 (w…

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## [Din buffer size](https://forums.digi.com/t/din-buffer-size/17364)

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**Author:** [@El\_Berto](https://forums.digi.com/u/El_Berto)\
**Replies:** 1\
**Last updated:** [September 8, 2016, 10:51am UTC](https://forums.digi.com/t/din-buffer-size/17364 "2016-09-08T10:51:45Z")

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I suppose Din buffer could/should have same size on 868LP (is it on manual?) Is not clear if Din and Dout buffers are separated, I suppose yes. So, if I try to send API1 message I need the TOTAL message length would be…

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## [S3B programmable CodeWarrior (Basics) Rx buffer](https://forums.digi.com/t/s3b-programmable-codewarrior-basics-rx-buffer/16063)

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**Author:** [@mike\_L](https://forums.digi.com/u/mike_L)\
**Replies:** 3\
**Last updated:** [January 13, 2016, 4:37pm UTC](https://forums.digi.com/t/s3b-programmable-codewarrior-basics-rx-buffer/16063 "2016-01-13T16:37:30Z")

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Hi everybody, I am working with the xbee module S3B (900HP and XSC RF Module) (digi part number 602-1346-ND) I want to program the modules in C using codewarrior but I’ve been having problems understanding the way xbee…

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## [Is tcgetbuffers used only with non-blocking mode?](https://forums.digi.com/t/is-tcgetbuffers-used-only-with-non-blocking-mode/3880)

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**Author:** [@maverick13](https://forums.digi.com/u/maverick13)\
**Replies:** 2\
**Last updated:** [January 3, 2007, 1:20am UTC](https://forums.digi.com/t/is-tcgetbuffers-used-only-with-non-blocking-mode/3880 "2007-01-03T01:20:58Z")

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If I open a serial port in blocking mode fd1 = open (“/com/0”, (O\_RDWR|O\_DMA)); and then later use tcgetbuffers I always get error no. 88 which is ENOSYS(function not supported) as while(1) { retbuf = tcgetbuffers(f…

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## [Flush serial buffer?](https://forums.digi.com/t/flush-serial-buffer/3951)

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**Author:** [@maxp](https://forums.digi.com/u/maxp)\
**Replies:** 1\
**Last updated:** [May 8, 2006, 3:41pm UTC](https://forums.digi.com/t/flush-serial-buffer/3951 "2006-05-08T15:41:33Z")

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I am working with an application to allow multiple TCP/IP clients to connect to the DigiME, sending/receiving data from a single serial server on the other side. The TCP clients send requests for status information from…