On Sat, 7 Oct 2000, Ren Yuhong wrote:
> int data;
> char * buf;
here you have not allocated any memory. Use something like buf[20].
Your buf was a random pointer to nowhere.
>
> comedi_read_data(cf,AI_device, AI_chan,range,aref,&data);
>
> rtl_printf("AI data = %d \n", data); (1)
> rtf_put(1,"data=32776", 10); (1)
>
> sprintf(buf, "%d", data); (2)
why do you use sprintf? You do not want for format it as string?
You can do just:
rtf_put(1,&data,sizeof(data));
> rtf_put(1,buf,sizeof(data)); (2)
Best regards,
--
Tomek
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