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Altera_Forum's avatar
Altera_Forum
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19 years ago

Using IORD - IOWR

Hi, I want to write down some value to my control register. Here are the steps : 1. Define component's macros which are done in SOPC Builder # define MY_IORD(base , offset) ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

Hi Slacker ,

I have a component and try to control it through the NIOS C program. I have been trying to write to a control register that I defined for my component.

For ex : I have a counter. Here are the files I have to make :

(1) Hardware files

counter_task_logic.v

counter_regs.v

counter_avalon_interface.v

(2) Software files

counter_regs.h (/inc)

counter_routines.h (/HAL/inc)

counter_routines.c (/HAL/src)

(3) Test Hardware file

counter_test.c

Then I packaged my counter to SOPC with (1) and (2) and used NIOS IDE to create program to check my counter.

I tried to follow the instruction in the reference I gave you some days ago but it seemed to me that it didn't work as I expected.

Could you tell me where my problem is ?

Thanks,

Quan