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Altera_Forum
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11 years ago

Access serial port for data sent from Nios II's uart for real time plotting graph in

Hi all, I am able to read data from FPGA to Nios processor, then transmit this data to Uart component created in Qsys using direct register method (IORD_ALTERA_AVALON_UART_STATUS (UART_BASE)...
Altera_Forum's avatar
Altera_Forum
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11 years ago

How are you transmitting uart from the fpga? Are you polling or using interrupts?

Here is a thread about using UART with interrupts: http://www.alteraforum.com/forum/showthread.php?t=17224

The code bluegem1 provides (uart interrupt handler) works very well. I've used it to communicate with nios and a Visual c++ program on the pc.

Make sure your baud rates match up (i use 115200).

The matlab code looks correct.