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Andrew099's avatar
Andrew099
Icon for New Contributor rankNew Contributor
2 years ago
Solved

BSP fails to build for FreeRTOS on a Nios V with UART

I have a Nios V on a Max 10 with a UART (RS-232 Serial Port) Intel FPGA IP (and also JTAG UART). When I opened up the BSP editor, I selected FreeRTOS and went with all the defaults and made a BSP. Ho...
Nios Cpu
  • EBERLAZARE_I_Intel's avatar
    EBERLAZARE_I_Intel
    2 years ago

    In the "freertos/drivers/src/":


    • intel_lw_uart_init.c
      • line 228~:

    if (sp->tx_start == ((sp->tx_end + 1) & ALT_AVALON_UART_BUF_MSK))

    {

    ALT_FLAG_POST (sp->events,

    ALT_UART_WRITE_RDY,

    ALT_FLAG_SET);

    }


    • intel_lw_uart_read.c
      • line 205~:

    ALT_FLAG_PEND (sp->events,

    ALT_UART_READ_RDY,

    ALT_FLAG_WAIT_SET_ANY_WITH_CONSUME,

    ALT_FLAG_WAIT_MAX_TIMEOUT);


    • intel_lw_uart_write.c
      • line 192~:

    ALT_FLAG_PEND (sp->events,

    ALT_UART_WRITE_RDY,

    ALT_FLAG_WAIT_SET_ANY_WITH_CONSUME,

    ALT_FLAG_WAIT_MAX_TIMEOUT);



Andrew099's avatar
Andrew099
Icon for New Contributor rankNew Contributor
2 years ago

Sure, I attached a Quartus archive of an example where the BSP won't build.

The C file doesn't have to have any substance to it. The following is fine:

// main.c
int main() {
   return 0;
}
  1. Open the Quartus project using Quartus 23.1 STD, and compile it.
  2. Create a BSP:
    • enter a niosv shell and open the BSP editor
    • select the sopcinfo file
    • select FreeRTOS
    • go with all other defaults
    • generate
  3. Use the niosv-app to create a cmake file.
  4. Run cmake and then make. (I'm using Linux.)