qcom,pins= <&gp7>, <&gp6>;//使用gpio_6和gpio_7qcom,num-grp-pins= <2>;//共两个gpioqcom,pin-func= <3>;//复用功能为i2clabel ="pmx_i2c_0";//表示同一组i2c_0_active:i2c_0_active { drive-strength= <8>; bias-pull-up; }; i2c_0_sleep:i2c_0_sleep { drive-strength= <2>;...
I think if the drive strength of the GPIO becomes higher, this issue will be solved. Q1 If I set SRE=1(fast slew rate), the waveform became worse. Please refer to the attached Case1 and Case2. Should I use slow slew rate when the frequency is high? Q2 If I use driver IC whose...
The drive strength of an output is configured via the IO mux ("FUN_DRV"). As every signal must pass through the IO mux, whether it's GPIO, peripheral-direct, or peripheral via GPIO matrix, it seems that drive strength (as well as pull-up/down) can be set independent of the signal...
驱动强度(Drive Strength):GPIO的驱动强度决定了它可以提供的输出电流。通过软件配置,您可以选择合适的驱动强度,以确保GPIO能够驱动所连接的外部设备或电路。 上拉(Pull-up)和下拉(Pull-down):GPIO引脚可以通过上拉或下拉电阻来确定其默认电平状态。通过软件配置,您可以选择启用上拉或下拉电阻,以确保GPIO在未连接外部...
(2)通过以下成员选择类型、上拉/下拉和驱动力gpio_out_type、gpio_pull和gpio_drive_strength成员根据上述配置过程,下面将介绍几种外设的常用配置示例。 USARTI/O复用模式配置 TMR I/O复用模式配置 I2C I/O复用模式配置 雅特力目前已累积相当多元的终端产品成功案例:如微型打印机、扫地机、光流无人机、热成像仪、...
Re: GPIO Drive Strength Explanation Mon Oct 29, 2018 11:58 am Yes, to a first approximation, changing the drive strength changes the output impedance. It adds (or removes) extra gates in parallel. For a full description, try https://matt.ucc.asn.au/mirror/electron ... ntrol2.pdf2...
&tlmm{client1_state1: client1_state1 {mux {pins ="gpio0";function ="gpio";};config {pins ="gpio0";bias-disable;drive-strength =<2> ;input-enable;};};client1_state2: client1_state2 {mux {pins ="gpio0";function ="gpio";};config {pins ="gpio0";bias-disable;drive-strength =...
设定引脚状态函数(gpio_set)、获取引脚状态函数(gpio_get)3个主要函数,以及反转引脚状态函数(gpio_reverse)、引脚上下拉使能函数(gpio_pull)、使能引脚中断函数(gpio_enable_int)、禁用引脚中断函数(gpio_disable_int)、获取引脚GPIO中断状态(gpio_get_int)、引脚的驱动能力设置函数(gpio_drive_strength)6个功能函数...
(GPIOA, GPIO_PINS_SOURCE0, GPIO_MUX_4);— 使用GPIO_Init()函数配置I/O引脚:- 通过以下方式配置复用功能模式下的所需引脚gpio_init_struct.gpio_mode = GPIO_MODE_MUX;- 通过以下成员选择类型、上拉/下拉和驱动力gpio_out_type、gpio_pull和gpio_drive_strength成员根据上述配置过程,下面将介绍几种外设的...
drive-strength = <8>; //最大电流限制为8mA bias-pull-up; //配置上拉 output-high; //输出高电平 }; }; gpio_sleep: gpio_sleep { mux { pins = "gpio99", "gpio98"; //复用引脚99和98 functions = "gpio"; //引脚功能配置为普通gpio ...