![]() Make sure it runs correctly over the RS-232C COM port. Don't run nios2-terminal, use minicom on Linux or Hyper-terminal on Windows. ![]() You have to test the new kernel image with nios2-download. Please check LinuxConfig about how to select the other console device instead of JTAG UART. You can keep both the JTAG UART and serial UART in SOPC builder, but you must disable "Support for console on Altera JTAG UART" in kernel config and rebuild the kernel image. You should use Serial UART with a RS232C cable instead. ![]() Because the JTAG UART will hang without a nios2-terminal connected. You should not use it as console device if you want your system to start automatically when power on. Though we can use JTAG UART as console with nios2-terminal during development. But flash have limited write life and the write speed is slow, so you should not program the flash until you have your system mostly tested. ![]() To enable the system to start from power on, we need to write sof and program to flash. But the content of FPGA and SDRAM will lose when power off. During development, we use nios2-configure-sof and nios2-download to config the FPGA and run Nios II program from SDRAM. ![]()
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