Forum Discussion

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

Interrupt Problem

Currently i am working on low level driver for Nand Flash in NIOS II.In my system following component are included DDR_SDRAM,JTAG_UART,PERFORMANCE COUNTER,PIO(LED),NFC(Nand flash controller).In my sy...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

--- Quote Start ---

Did you mean alt_irq_enable(NFC_IRQ)? Because alt_irq_enable(NFC_BASE) can't be right.

--- Quote End ---

Lots of altera macros are written based on the _BASE address of the device. The macro then adds the offset to the proper register, masks off the correct bit, etc. I haven't checked, but I'd assume that alt_irq_enable() is such a macro (but generally their macros are ALL_CAPS).

However, this does seem a little bit generic in that it implies that all devices have the interrupt enable bit in the same location. Is this so?