IDE not sending anything over serial port

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originally posted by gomiboy@Nov 6 2006, 12:12 PM

i have my fpga & c program running fine with the jtag uart. when i switch over to the real uart, the ide doesn't actually send what i type out com1.

i've verified that com1 works ok with hyperterm and a scope on the board. the ide says "nios2-terminal: connected to hardware target using uart on /dev/com1 at 115200 baud" so it thinks it's trying to do the right thing.

anyone ever see this before? any ideas?

thanks

chris http://forum.niosforum.com/work2/style_emoticons/<#emo_dir#>/blink.gif

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=19224)

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Go into the syslib properties and make sure you have standard output, input, and error setup properly (i.e. not set to the JTAG UART still).

I totally don&#39;t know why but that&#39;s how I walked around the similar problem.

Open a HyperTerminal set to unused COM or if you have only one COM. Then Nios II file I/O will work on my side.

In case you have only one COM and you&#39;ve tried opening HyperTerminal, you might want to use a serial monitor to check for more detail.

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originally posted by badomen+nov 6 2006, 03:21 pm--><div class='quotetop'>quote (badomen @ nov 6 2006, 03:21 pm)</div>

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<!--quotebegin-gomiboy@Nov 6 2006, 12:12 PM

i have my fpga & c program running fine with the jtag uart. when i switch over to the real uart, the ide doesn&#39;t actually send what i type out com1.

i&#39;ve verified that com1 works ok with hyperterm and a scope on the board. the ide says "nios2-terminal: connected to hardware target using uart on /dev/com1 at 115200 baud" so it thinks it&#39;s trying to do the right thing.

anyone ever see this before? any ideas?

thanks

chris http://forum.niosforum.com/work2/style_emoticons/<#emo_dir#>/blink.gif

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=19224)

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Go into the syslib properties and make sure you have standard output, input, and error setup properly (i.e. not set to the JTAG UART still).

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=19226)</div>

[/b]

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Thanks. They were all set to JTAG UART, so that was part of the problem.

I also realized that the IDE terminal doesn&#39;t send any characters until you hit return. Running nios2-terminal from the shell sends characters immediately.

Chris

Really off topic here but when I run into uart issues I like using this program:

http://bray.velenje.cx/avr/terminal/ (http://bray.velenje.cx/avr/terminal/)

You can script it and save off macros. It also shows you the status of the handshake lines which is handy when you are wondering "why isn&#39;t anything going out???".