Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

problems with debug Nios

I have created the project in SOPC Nios + onchip_ram + jtag_uart + two pio_led + external IRQ + timer + pll + C code. This project with Nios works, all OK. Debug in the IDE works too. After that I in...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

the state debug message appeared a long time ago with usb blaster rev b. when we had jtag issues.

we had replaced the flat yellow cable with a short (<10cm) ribbon cable and rechecked that the jtag implmented on our custom boards as mentioned in the device handbooks.

could it be that the new added logic just produced more noise and disturbs the jtag ?

with added logic the jtag fails without it works ?