Forum Discussion

Honored Contributor

16 years ago

HSMC interface IO in SOPC Builder

I have a Cyclone III Starter kit, and I want to write some datas in dr_sdram memory from HSMC IO.

In SOPC Builder, how do I build this interface HSMC IO( LVDS format) ?

Do I use the RapidIO megacore or GPIO ?

Altera_Forum
Honored Contributor
16 years ago
--- Quote Start ---
int main(void)
{
int buttons;
MenuHeader();
while (1)
{
buttons = IORD_ALTERA_AVALON_PIO_DATA(BUTTON_PIO_BASE);

IOWR_ALTERA_AVALON_PIO_DATA(PIO_BASE,0x08);

IOWR_ALTERA_AVALON_PIO_DATA(LED_PIO_BASE,buttons);
}
return (0);
}
--- Quote End ---
My Nios'code: PIO_BASE is the hsmc output.
Altera_Forum
Honored Contributor
16 years ago
Check that you assigned the ports to the correct FPGA pins on the pin planner.
You can also use a signaltap probe on the ports that you added to check if you are setting them to the correct value. From the code that you posted. it seems that you do.