jaysnote:gpio_int_failed

差别

这里会显示出您选择的修订版和当前版本之间的差别。

到此差别页面的链接

--- jaysnote:gpio_int_failed [2019/05/30 14:42]
jaylee
+++ jaysnote:gpio_int_failed [2021/06/22 23:14]
@@ 行 1: / 行 1: @@
-<markdown>
-# a64 gpio interrupt init failed
-如下`pc0`，`gpio64 `设置中断触发边沿失败。
-```bash
-~$ tree /sys/class/gpio/gpio64/
-├── active_low
-├── device -> ../../../1c20800.pinctrl
-├── direction
-├── power
-│   ├── async
-│   ├── autosuspend_delay_ms
-│   ├── control
-│   ├── runtime_active_kids
-│   ├── runtime_active_time
-│   ├── runtime_enabled
-│   ├── runtime_status
-│   ├── runtime_suspended_time
-│   └── runtime_usage
-├── subsystem -> ../../../../../class/gpio
-├── uevent
-└── value
-```
-对比，`pb0` ` gpio32`，这里没有`edge`  属性。
-```bash
-~$ tree /sys/class/gpio/gpio32
-/sys/class/gpio/gpio32
-├── active_low
-├── device -> ../../../1c20800.pinctrl
-├── direction
-├── edge
-├── power
-│   ├── async
-│   ├── autosuspend_delay_ms
-│   ├── control
-│   ├── runtime_active_kids
-│   ├── runtime_active_time
-│   ├── runtime_enabled
-│   ├── runtime_status
-│   ├── runtime_suspended_time
-│   └── runtime_usage
-├── subsystem -> ../../../../../class/gpio
-├── uevent
-└── value
-```
-对比`3.21.2.1. PB Configure Register 0 (Default Value: 0x77777777)` 和`3.21.2.10. PC Configure Register 0 (Default Value: 0x77777777)` 这里pc0 确实不支持中断。
-> **提示**：`Allwinner_A64_User_Manual_V1.1_decrypted.pdf`->`Chapter 3 System`->`3.21. Port Controller(CPUx-PORT)`
-![pb0 配置寄存器](http://docs.leconiot.com/lib/exe/fetch.php?media=jaysnote:images:pb0_config_reg.png)
-![pc0 配置寄存器](http://docs.leconiot.com/lib/exe/fetch.php?media=jaysnote:images:pc0_config_reg.png)
-</markdown>

jaysnote/gpio_int_failed.txt · 最后更改: 2021/06/22 23:14 (外部编辑)