stm32 rtems_counter_delay_nanoseconds() longer

[Jython]

is there someone could help me

On Sun, Jun 30, 2019 at 2:36 PM Jython <googcheng at gmail.com> wrote:

> a 21ms counter in fact more than 10s, see log , my rtc 10s wake up
>
> static void Delay_ms(x)
> {
>     #if 0
>     int int_num = 0;
>
>     if(x % 10 == 0)
>     {
>         int_num = x / 10;
>     }
>     else
>     {
>         int_num = x / 10 + 1;
>     }
>     //printf("delay x %d int_num %d\n", x, int_num);
>     rtems_task_wake_after(int_num);
>     #endif
>     volatile int i;
>     int us_cnt = 1000*x;
>     printf("delay x %dms us_cnt %d\n", x, us_cnt);
>     for(i = 0; i < us_cnt; i++)
>         rtems_counter_delay_nanoseconds(1000);
>
>     printf("end delay\n");
> }
>
>
> [14:33:18.242]ÊÕ¡û¡ôflash_buf 32 00 00 00
> write page index 50
> log_page_no = 50
> before while
> loop begin
> dtr set 0
> baud 9600 at UART1_ChangeBaud
> USART_WordLength_8b
> USART_StopBits_1
> delay x 21ms us_cnt 21000
>
> [14:33:21.055]ÊÕ¡û¡ôafter clr isr 00000033
>
> [14:33:31.056]ÊÕ¡û¡ôafter clr isr 00000033
>
> [14:33:32.759]ÊÕ¡û¡ôend delay
> Lenggui_ClrBuffer begin okflag 0
>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.rtems.org/pipermail/users/attachments/20190704/9dab0e1c/attachment.html>