[stm32] fix sys_time_usleep #739
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only use systick counter
| // start time | ||
| uint32_t start = systick_get_value(); | ||
| // max time of one full counter cycle | ||
| uint32_t DT = usec_of_cpu_ticks(systick_get_reload()); |
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I think either this should be usec_of_cpu_ticks(systick_get_reload() + 1) or systick_set_reload it is wrong in sys_time_arch_init.
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Tested on F1 and F4 and sleeps for the correct time... merged with 7282435 |
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only use systick counter