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Altera_Forum's avatar
Altera_Forum
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20 years ago

UART Core with CTS/RTS

In a working design I configured my UART core so that it uses CTS/RTS. But I do not get a simple design running that shall only send integers from a Windws hyperterminal to via the Nios core an...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

make sure you set the tx fifo in the com port properties to 1. Do this through control panel - system - device manager.

This is because, when it's more than 1 (typically 14/16), the PC continues to send data after you raise CTS. It continues until its FIFO is emptied. Thus you would experience Rx overruns on your embedded device.