Forum Discussion

Honored Contributor

20 years ago

Nios-II SOPC UART delivers wrong bytes

We use the UART in our Nios-II design that comes with Quartus 5.0SP1 and Nios-II 5.0 We face the problem that sometimes the Uart reports wrong RX Bytes from correct RX streams. The serial str...

Altera_Forum

Honored Contributor

19 years ago

hello michael,

what kind of termination do you use for rs485 ?

do you bias the bus with resistors, like it is shown in

the following document in figure 7 (multidrop/fail-safe termination) ?

http://www.maxim-ic.com/appnotes.cfm/appnote_number/723 (http://www.maxim-ic.com/appnotes.cfm/appnote_number/723)

http://pdfserv.maxim-ic.com/en/an/an723.pdf (http://pdfserv.maxim-ic.com/en/an/an723.pdf)

Forum Discussion

Nios-II SOPC UART delivers wrong bytes

Recent Discussions

JTAG_UART stuck in printf

NIOS SDK SBOM/FOSS info

NiosV µC/OS-II

Recommended Quartus Prime Standard Edition for Nios V Development on MAX 10 FPGA (10M25DAF4817G)

AshlingRISCFree IDE Build system: 'source directory does not appear to contain CMakeLists.txt"