01 2021 档案
摘要:Pulse-width Modulation (PWM) Pulse-width modulation (PWM) is a technique that modifies the duty-cycle of a pulsing signal to encode information or to
阅读全文
摘要:Pulse Width Modulation (PWM) interface This provides an overview about the Linux PWM interface PWMs are commonly used for controlling LEDs, fans or vi
阅读全文
摘要:imx6芯片利用IOMUX机制来解决引脚复用的问题,其引脚配置方法也有些复杂,它涉及到的寄存器有三类:1.PAD控制寄存器2.MUX控制寄存器3.Select Input控制寄存器下面我以串口UART4_TXD这一引脚为例来简单说明:1.查看原理图: 上图可以看出UART4_TXD对应芯片的引脚为K
阅读全文