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MG32F10x Standard Peripherals Firmware Library
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*************** (C) COPYRIGHT 2020 - 2023 megawin Technology *************** * @file TIM/TIM_TIM1_OCToggle/readme.txt * @author megawin Application Team * @version V0.1.10 * @date 05-January-2023 * @brief Description of the TIM_TIM1_OCToggle 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. ******************************************************************************
这个例子展示了如何配置TIM1外设以生成两个不同频率的两个不同信号。
系统时钟工作在96Mhz,通过PLL配置产生。PLL时钟源是外部8Mhz晶振。APB1的分频比是1,APB2的分频比是1。
TIM1CLK频率设置为SystemCoreClock,我们希望得到96 MHz的TIM1计数器时钟,因此预分频器的计算如下:
-预分频器=(TIM1CLK / TIM1计数器时钟)- 1
TIM1->CCR1寄存器值等于32768:
CC1更新率 = TIM1计数器时钟 / CCR1VAL = 1.46KHz,
因此,TIM1通道1产生一个频率等于1.46KHz的周期信号。
TIM1->CCR2寄存器等于16384:
CC2更新率 = TIM1计数器时钟 / CCR2VAL = 2.92KHz
因此,TIM1通道2产生一个频率等于2.92KHz的周期信号。
TIM1->CCR3寄存器等于16384:
CC3更新率 = TIM1计数器时钟 / CCR3VAL = 5.85KHz
因此,TIM1通道3产生一个频率等于5.85KHz的周期信号。
TIM1->CCR4寄存器等于16384:
CC4更新率 = TIM1计数器时钟 / CCR4VAL = 11.7KHz
因此,TIM1通道4产生一个频率等于11.7KHz的周期信号。
为了使程序工作,您必须执行以下操作 :
运行此例程