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Altera_Forum's avatar
Altera_Forum
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14 years ago

DE2-115/tPad and RS-232

Hello, I've been fiddling a bit with this lately, interfacing with the UART chip on this board, and running into some strange problems. As far as I can see there are 4 ports/pins available...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

An RS232 UART has the 4 signals that you mention. When such a UART is not used together with a Modem, only the TXD and RXD are used. For example to send or receive something from your Garmin.

To test a UART you can simple hook it up to a serial port of your PC and use a program like HyperTerminal or other to see if the link works.

The easiest to get your UART working is to make a project with SOPC and a NIOS processor. SOPC (or QSYS) do have modules for UARTs.