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STM32MP1 support available in SW4STM32

   With System Workbench for Linux, Embedded Linux on the STM32MP1 family of MPUs from ST was never as simple to build and maintain, even for newcomers in the Linux world.
And, if you install System Workbench for Linux in System Workbench for STM32 you can seamlessly develop and debug asymmetric applications running partly on Linux, partly on the Cortex-M4; you can download a short video showcasing this on the ac6-tools website (registration required).

System Workbench for STM32


You are viewing a reply to pwm with one shot timer  

pwm with one shot timer

France

Hi,
What is the problem in setting the pulse length in HAL_TIM_PWM_PulseFinishedCallback? It will be valid for the next pulse, and I can’t see how it could be changed earlier; setting it in HAL_TIM_PeriodElapsedCallback may be too late for the current pulse (already started) and will thus have a longer latency.
By the way, what do you mean by “just in time”? As you can’t change the period of the PWM output, but only the cyclic/ration (period/pulse_length) you can not obtain an immediate effect, just an effect on the current (if a pulse is current) or on the next pulse (if between two pulses). Just setting CCRx when you decide what the next pulse length must be wil do its effect as soon as possible.
Bernard