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[SOLVED] qsys jtag_uart doubt

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dipin

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hi,

is it possible to print a series of number in nios 2 console using jtag uart along with nios2+onchip ram.

i am implemented an counter and made it as a custom component in qsys and i am using it
(adder+onchipram+nios 2+jtag uart).

i tried it but it is printing 0.

update:: i am able to print only one number.. ( i am counting from 1 to 65556, but its only printing 52429) so is it possible to print all numbers ?

thanks and regards
 
Last edited:

No code, no diagram of interconnections...
What do you expect here ?
 

hi ,
i just wanted to know is it possible to print a series of numbers

Capture_qsys.JPG

module counter_jtag_check (clk,reset);

input clk;
input reset;

jtag_count u0 (
.clk_clk (clk), // clk.clk
.reset_reset_n (1'b1) // reset.reset_n
);


endmodule
Click to expand...

c code::
/*
* main.c
*
* Created on: Jun 6, 2017
* Author: dipin
*/

#include "stdio.h"
#include "io.h"
#include "system.h"
int main()
{
signed int ans;

ans = IORD(COUNTER_INTERFACE_0_BASE,0);
printf("%d",ans);
while(1);

return 0;
}
Click to expand...

" COUNTER_INTERFACE_0_BASE" is the same in my system.h file

regards
 

I may be wrong, but shouldn't you send data to Uart from whithin the while loop ?

Code: 
while(1) {
   ans = IORD(COUNTER_INTERFACE_0_BASE,0);
   printf("%d",ans);
   }

Add:
I'm assuming you're using as template some of the Hello World examples took from the Nios2 IDE that prints to the Jtag Uart, on which you could insert your code.
 
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    dipin

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hi,
thanks for the replay andre_teprom,
you are exactly right, i dont have any experience before in qsys, this is my first time, thats why i used the code from demo program.
i will sure try your suggestion :)

regards
 

hi ,
i tried the code putting inside while loop, but its printing the same value infinite times :(
any solutions ? anyhelp is really appreciated

regards
 

As belike you, I'm also newbie on this area, and the only thing I could help with would be at the programming scope. By the way, I could not see the counter at the above picture, shouldn't be there ?
 
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    dipin

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hi,

i declared it as a custom component, which is jtag_count1 in qsys system.
any way thanks much for your suggestion on c code. it helped me for being close to my target

regards
 

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