MG32F10x Standard Peripherals Firmware Library
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*************** (C) COPYRIGHT 2020 - 2023 megawin Technology *************** * @file TIM/TIM_OCInactive/readme.txt * @author megawin Application Team * @version V0.1.10 * @date 05-January-2023 * @brief Description of the TIM_OCInactive example. ****************************************************************************** * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE * TIME. AS A RESULT, MEGAWIN SHALL NOT BE HELD LIABLE FOR ANY DIRECT, * INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM * THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. ******************************************************************************
This example shows how to configure the TIM peripheral in Output Compare Inactive mode with the corresponding Interrupt requests for each channel.
The system clock works at 96Mhz and is generated through PLL configuration. The PLL clock source is an external 8Mhz crystal oscillator. The frequency division ratio of APB1 is 1, and the frequency division ratio of APB2 is 1.
The TIM1CLK frequency is set to SystemCoreClock / 96(Hz), and the objective is to get TIM2 counter clock at 1 KHz so the Prescaler is computed as following:
-Prescaler=(TIM1CLK / TIM1 counter clock)- 1
The TIM2 CCR1 register value is equal to 800:
TIM1_CC1 delay = CCR1_VAL/TIM1 counter clock=800us
so the PA.08 is reset after a delay equal to 800 us.
The TIM1 CCR2 register value is equal to 400:
TIM1_CC2 delay = CCR2_VAL/TIM1 counter clock=400us
so the PA.09 is reset after a delay equal to 400 us.
The TIM1 CCR3 register value is equal to 200:
TIM1_CC3 delay = CCR3_VAL/TIM1 counter clock=200us
so the PA.10 is reset after a delay equal to 200 us.
The TIM1 CCR4 register value is equal to 100:
TIM1_CC4 delay = CCR4_VAL/TIM1 counter clock=100us
so the PA.11 is reset after a delay equal to 100 us.
In order to make the program work, you must do the following :
Run the example