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  • #739

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Opened Nov 09, 2023 by 赵怀孙@zhaohuaisun
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[feat] FM507 MFANG ATIM模块 encoder从机模式

encoder模式为编码器接口模式,本质上没有引脚强相关性。但为了方便应用配置,仅与CH1和CH2两通道引脚进行配置逻辑绑定:

1)当采用encoder模式时CH1和CH2两通道功能全灰掉;

2)配置相应引脚为ATIM_CH1和ATIM_CH2模式;

3)生成的工程中相应的需要引入CH1和CH2两通道输入捕获配置函数;

4)对应的输入捕获配置参数需要进行固化,具体示例如下:

a、encoder 1 模式 / encoder 2 模式

` FL_ATIM_IC_InitTypeDef IC_InitStruct;

IC_InitStruct.ICPolarity    = FL_ATIM_IC_POLARITY_NORMAL;           /* 上升沿捕获 */
IC_InitStruct.ICActiveInput = FL_ATIM_CHANNEL_MODE_INPUT_CROSSOVER;    /* CC1配置为输入,IC1映射到TI2*/
IC_InitStruct.ICPrescaler   = FL_ATIM_IC_PSC_DIV1;                  /* 输入捕捉分频 */
IC_InitStruct.ICFilter      = FL_ATIM_IC_FILTER_DIV1;               /* 输入捕捉滤波配置 */
IC_InitStruct.captureState  = FL_ENABLE;                            /* 使能CC1通道 */
FL_ATIM_IC_Init(ATIM, FL_ATIM_CHANNEL_1, &IC_InitStruct);

IC_InitStruct.ICPolarity    = FL_ATIM_IC_POLARITY_NORMAL;           /* 上升沿捕获 */
IC_InitStruct.ICActiveInput = FL_ATIM_CHANNEL_MODE_INPUT_CROSSOVER;    /* CC2配置为输入,IC2映射到TI1*/
IC_InitStruct.ICPrescaler   = FL_ATIM_IC_PSC_DIV1;                  /* 输入捕捉分频 */
IC_InitStruct.ICFilter      = FL_ATIM_IC_FILTER_DIV1;               /* 输入捕捉滤波配置 */
IC_InitStruct.captureState  = FL_ENABLE;                            /* 使能CC2通道 */
FL_ATIM_IC_Init(ATIM, FL_ATIM_CHANNEL_2, &IC_InitStruct);`

b、encoder 3 模式(仅展示不同参数项)

IC_InitStruct.ICActiveInput = FL_ATIM_CHANNEL_MODE_INPUT_NORMAL; /* CC1配置为输入,IC1映射到TI1*/

IC_InitStruct.ICActiveInput = FL_ATIM_CHANNEL_MODE_INPUT_NORMAL; /* CC2配置为输入,IC2映射到TI2*/

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Reference: fmsh-web-develop/mfang2.0#739