当步进电机驱动器的输出引脚发生变化时，它会从一些旧引脚提供固定输出。 #69

Abdssmtzl

你好，

  First of all, thank you for sharing such an excellent project. I wanted to make a few changes to add a touchscreen to your project but there were some issues with pin changes.
  I was able to adapt your source file to STM32F429ZIT Discovery. However, in order to use the touch screen, I need to change the location of the stepper motor driver pins and limits. To begin with, I changed the stepper motor pins. There was no problem in its operation, but even though the old stepper motor pins were canceled, I get constant high outputs after installing the program from some of them.

我只从 GPIO.h 文件更改了引脚。

高输出引脚：PA8、A10、B4
新增输出引脚依次为(stepX、DIRX、Sy、Dy、Sz、Dz)；D11,D4,D5,D7,D2,D13

注：笔者选择的引脚在定义时，当我按住处理器的reset键时，pin change中给高电平输出的引脚给高电平输出。我希望我解释得很好。

新的限位引脚顺序为：E4,E5,F6,G2,G9,G3 (x1,x2,y1,y2,z1,z2)

  Finally, when changing the limits, is there anything I should pay attention to when choosing a different empty timer pin instead of TIM4(B6)?

          Thank you for your interest.