SDK 3.4已知限制编码器TIM引脚说明

你好


在PMSP单/双FOC SDK v3.4版本说明中它说：
ENCODER速度传感器功能：所选定时器的一个输入捕捉引脚必须接地，根据使用的重新映射和基本原理：tiM2时为IC4，TIM3为IC4，TIM4为IC3，TIM5为IC4 ;

我正在使用STM3210B-MCKIT（MB459）以及提供编码器反馈能力的Shinano电机。在此设置中，TIM2将用于MCU引脚PA0-PA3，或外设TIM2通道1-4。

根据“已知限制”，需要PA3（TIM2 Ch 4（IC4））接地。

但是我注意到，在电机开发套件（UM0426）的原理图上，TIM2 Ch4没有接地 - 相反，它用于模拟电压读数。

在我们的应用中，我们使用3x大厅的滑板，但没有编码器。请您澄清“已知限制”说明吗？

也许“已知限制”注释应指定霍尔效应传感器，但没有编码器功能？我很困惑。请澄清一下。

谢谢
卢克



＃编码器释放小钞限制



以下为原文




Hi


In the PMSP single/dual FOC SDK v3.4 RELEASE NOTE it says:

ENCODER speed sensor function: one Input Capture pin of the selected timer must be grounded, according to the remapping in use and this rationale: IC4 in case of TIM2, IC4 in case of TIM3, IC3 in case of TIM4, IC4 in case of TIM5;

I am using STM3210B-MCKIT (MB459) along with the supplied Shinano motor which has the capability of encoder feedback. In this setup, TIM2 would be used over MCU pins PA0-PA3, or in terms of peripherals TIM2 channels 1-4.

According to the 'Known Limitations' then, it is required that PA3 (TIM2 Ch 4 (IC4)) is grounded.

However I note that on that on the schematic diagram for the motor development kit (UM0426) that TIM2 Ch4 is not grounded - rather, it is used for analog voltage reading.

In our application we use 3x hall snesors, but no encoder.  Would you kindly clarify the 'Known limitations' note, please?

Perhaps the 'Known limitations' note should specify Hall Effect sensors, but without the encoder function?  I am perplexed.  Kindly clarify.

Thanks
Luke
   

  
#encoder-release-note-limitation