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Altera_Forum's avatar
Altera_Forum
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15 years ago

Uart data ready

Hi all, I am periodically sending data from LabView to my cycloneIII development kit (bemicro) and I want to check if there is data available to be read in NIOS II. Unfortunately, I have not be...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

hi, I should read "and returns to zero even when the data is not read from the rx", shouldn't I? ;-)

Are you sure there is no other iord_altera_avalon_uart_rxdata(uart_base) in your NIOS prgoram.

Are you sure about your serial protocol ? câble (cross-câble ?) and config ( for example 38400-8-n-1)

Are you sure that your Labview doesn't send continuously data ? (You can check Uart ROE bit status) You can send data from an other computer with hyperterminal (does not exist in Windows 7 ! :-D :-D :-D) instead of LabView.