# Only reading 8 byte

**URL:** <https://forums.digi.com/t/only-reading-8-byte/4735>\
**Category:** NET+OS\
**Created:** [May 31, 2007, 7:19pm UTC](https://forums.digi.com/t/only-reading-8-byte/4735 "2007-05-31T19:19:56Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![van723](https://avatars.discourse-cdn.com/v4/letter/v/8dc957/32.png) [@van723](https://forums.digi.com/u/van723)\
**Post date:** [May 31, 2007, 7:19pm UTC](https://forums.digi.com/t/only-reading-8-byte/4735/1 "2007-05-31T19:19:56Z")

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Developing on the NS9750 development board using the Net0S 7.1 platform. I’m having problems reading from the com port. I’ve tried both /com/0 and /com/1. I can write out from the port but when i tried to read data. I can only read 8 bytes at a time, the rest of the data seemed to get truncated.

I’ve tried this on 2 different bit rates. 9600 and 38.4k. The com settings are 8 databit, Even parity, and 1 stop bit.

It really looks like the read buffer is only 8 bytes long, but I find it highly unlikely. Has anybody ever seen this?

Oh, I’m using the sample serial port application as a template, maybe there’s a hidden setting in the project that limits the read buffer?