Posted on February 04, 2013 at 22:44I've tried both the 16 MHz HSI and 24 MHz HSE with the STM8/128-EVAL board, and I can only divide TIM4 down to an approximate 5-microsecond tick resolution.
Is this correct?
The settings I'm using with the 24 MHz HSE are TIM4_PRESCALER_2 (for a 12 MHz clock) and a TIM4_PERIOD of 11.
This should provide a 1-microsecond tick:
(11 + 1) / 12,000,000 = 1 usec.
But it seems to bottom out at approximately 5 microseconds.
I've also set Flash_Wait_States = 1 in the Debug Instrument > MCU configuration > Options window.
Any help would be much appreciated.
