501在全志r16平台tinav3.0系统下调通pwm1的10KHZ波形

2018/10/19 19:52

版本:V1.0

开发板:SC3817R

SDK:tina v3.0

1、01原始编译全志r16平台tinav3.0系统:

rootroot@cm88:~$ cd /home/wwt

rootroot@cm88:/home/wwt$

rootroot@cm88:~$ cd /home/wwt

rootroot@cm88:/home/wwt$

rootroot@cm88:/home/wwt$

rootroot@cm88:/home/wwt$ md5sum tina_v3.0_20180606_1711git.tar.gz

ebf7ea460473f13a7f64248ed61cf998  tina_v3.0_20180606_1711git.tar.gz

rootroot@cm88:/home/wwt$

rootroot@cm88:/home/wwt$ tar zxvf tina_v3.0_20180606_1711git.tar.gz

rootroot@cm88:/home/wwt$

rootroot@cm88:/home/wwt$ cd tina_v3.0/

rootroot@cm88:/home/wwt/tina_v3.0$

rootroot@cm88:/home/wwt/tina_v3.0$

rootroot@cm88:/home/wwt/tina_v3.0$ source build/envsetup.sh

(请严重注意:lunch之后的选项是环境依赖的,请选择astar_parrot-tina前的实际数值!)

rootroot@cm88:/home/wwt/tina_v3.0$ lunch

You're building on Linux

Lunch menu... pick a combo:

5. astar_parrot-tina

Which would you like?5

rootroot@cm88:/home/wwt/tina_v3.0$ make -j12

rootroot@cm88:/home/wwt/tina_v3.0$ pack -d

2、在内核中打开PWM:

(已经默认选中了)

rootroot@cm88:/home/wwt/tina_v3.0$ make kernel_menuconfig

Device Drivers  --->

[*] Pulse-Width Modulation (PWM) Support  --->

--- Pulse-Width Modulation (PWM) Support

<*>   sunxi pwm support

相关驱动文件在这里:

W:\tina_v3.0\lichee\linux-3.4\drivers\pwm\core.c

W:\tina_v3.0\lichee\linux-3.4\drivers\pwm\pwm-sunxi.c

刷机之后可见,没有输出PWM波形的驱动!

root@TinaLinux:/#

root@TinaLinux:/# find . -name pwm*

./sys/kernel/debug/pwm

root@TinaLinux:/#

root@TinaLinux:/sys/kernel/debug#

root@TinaLinux:/sys/kernel/debug# ll

drwxr-xr-x   24 root     root             0 Jan  1 08:00 .

drwxr-xr-x    9 root     root             0 Jan  1 08:29 ..

drwxr-xr-x    3 root     root             0 Jan  1 08:00 asoc

drwxr-xr-x    2 root     root             0 Jan  1 08:29 axpdbg

drwxr-xr-x   16 root     root             0 Jan  1 08:00 bdi

drwxr-xr-x    2 root     root             0 Jan  1 08:00 bluetooth

drwxr-xr-x    2 root     root             0 Jan  1 08:29 ccudbg

drwxr-xr-x    6 root     root             0 Jan  1 08:29 clk

drwxr-xr-x    2 root     root             0 Jan  1 08:29 cpufreq

drwxr-xr-x    2 root     root             0 Jan  1 08:29 ddrfreq

drwxr-xr-x    2 root     root             0 Jan  1 08:00 extfrag

-r--r--r--    1 root     root             0 Jan  1 08:00 gpio

drwxr-xr-x    2 root     root             0 Jan  1 08:00 hid

drwxr-xr-x    2 root     root             0 Jan  1 08:00 hotplug

drwxr-xr-x    2 root     root             0 Jan  1 08:00 ieee80211

drwxr-xr-x    2 root     root             0 Jan  1 08:00 ion

drwxr-xr-x    8 root     root             0 Jan  1 08:29 mali

drwxr-xr-x    2 root     root             0 Jan  1 08:00 memblock

drwxr-xr-x    2 root     root             0 Jan  1 08:00 mmc0

drwxr-xr-x    4 root     root             0 Jan  1 08:00 pinctrl

-r--r--r--    1 root     root             0 Jan  1 08:00 pwm

drwxr-xr-x    2 root     root             0 Jan  1 08:00 regmap

drwxr-xr-x   23 root     root             0 Jan  1 08:00 regulator

-rw-r--r--    1 root     root             0 Jan  1 08:00 shrinker

drwxr-xr-x    2 root     root             0 Jan  1 08:00 sunxi_pinctrl

drwxr-xr-x    2 root     root             0 Jan  1 08:00 sunxi_soc_info

-r--r--r--    1 root     root             0 Jan  1 08:00 suspend_stats

-rwxr-xr-x    1 root     root             0 Jan  1 08:00 suspend_time

-r--r--r--    1 root     root             0 Jan  1 08:00 sync

drwxr-xr-x    2 root     root             0 Jan  1 08:00 usb

-r--r--r--    1 root     root             0 Jan  1 08:00 wakeup_sources

root@TinaLinux:/sys/kernel/debug#

root@TinaLinux:/sys/kernel/debug#

(可见)

root@TinaLinux:/sys/kernel/debug#

root@TinaLinux:/sys/kernel/debug# cat pwm

platform/sunxi_pwm, 2 PWM devices

pwm-0   ((null)              ):

pwm-1   (lcd                 ): requested enabled

root@TinaLinux:/sys/kernel/debug#

(tina v3.0.2中内置:)

W:\tina_v3.0\lichee\linux-3.4\drivers\misc\leds\Kconfig

W:\tina_v3.0\lichee\linux-3.4\drivers\misc\leds\Makefile

W:\tina_v3.0\lichee\linux-3.4\drivers\misc\leds\pwm_leds.c

W:\tina_v3.0\lichee\linux-3.4\drivers\misc\Makefile

obj-y                           += leds/

W:\tina_v3.0\lichee\linux-3.4\drivers\misc\Kconfig

source "drivers/misc/c2port/Kconfig"

source "drivers/misc/eeprom/Kconfig"

source "drivers/misc/cb710/Kconfig"

source "drivers/misc/iwmc3200top/Kconfig"

source "drivers/misc/ti-st/Kconfig"

source "drivers/misc/lis3lv02d/Kconfig"

source "drivers/misc/carma/Kconfig"

source "drivers/misc/altera-stapl/Kconfig"

source "drivers/misc/sw_3g_module/Kconfig"

source "drivers/misc/rf_pm/Kconfig"

source "drivers/misc/sunxi-clk-prepare/Kconfig"

source "drivers/misc/leds/Kconfig"

endmenu

rootroot@cm88:/home/wwt/tina_v3.0$ make kernel_menuconfig

Device Drivers  --->

Misc devices  --->

(在最后面,默认选中的)

<M> LEDs by PWM Control driver (NEW)

rootroot@cm88:/home/wwt/tina_v3.0$ make -j12

STMicroeletronics LIS3LV02Dx three-axis digital accelerometer (SPI) (SENSORS_LIS3_SPI) [N/m/y/?] n

STMicroeletronics LIS3LV02Dx three-axis digital accelerometer (I2C) (SENSORS_LIS3_I2C) [N/m/y/?] n

*

* Altera FPGA firmware download module

*

Altera FPGA firmware download module (ALTERA_STAPL) [N/m/y/?] n

Allwinner rf module pm driver (AW_RF_PM) [Y/n/?] y

LEDs by PWM Control driver (MISC_PWM_LEDS) [M/n/y/?] (NEW) y

刷机之后可见:

(通过ADB可见PWM1打开了)

root@TinaLinux:/# cd /sys/class/sunxi_dump

cd /sys/class/sunxi_dump

root@TinaLinux:/sys/class/sunxi_dump#

root@TinaLinux:/sys/class/sunxi_dump# ll

ll

drwxr-xr-x    2 root     root             0 Jan  1 08:29 .

drwxr-xr-x   48 root     root             0 Jan  1 08:29 ..

-rw-r--r--    1 root     root          4096 Jan  1 08:29 compare

-rw-r--r--    1 root     root          4096 Jan  1 08:29 dump

-rw-r--r--    1 root     root          4096 Jan  1 08:29 write

root@TinaLinux:/sys/class/sunxi_dump#

root@TinaLinux:/sys/class/sunxi_dump#

root@TinaLinux:/sys/class/sunxi_dump# echo 0x01C208FC > dump;cat dump

echo 0x01C208FC > dump;cat dump

0x77222227

root@TinaLinux:/#

root@TinaLinux:/# find . -name pwm*

./sys/devices/virtual/misc/misc_dev/pwm_leds

./sys/kernel/debug/pwm

root@TinaLinux:/#

root@TinaLinux:/# cd /sys/kernel/debug

root@TinaLinux:/sys/kernel/debug# cat pwm

platform/sunxi_pwm, 2 PWM devices

pwm-0   (led_red             ): requested

pwm-1   (led_blue            ): requested enabled

root@TinaLinux:/sys/kernel/debug#

root@TinaLinux:/#

root@TinaLinux:/# cd /sys/devices/virtual/misc/misc_dev/pwm_leds

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds#

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds#

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds# ll

drwxr-xr-x    2 root     root             0 Jan  1 08:30 .

drwxr-xr-x    4 root     root             0 Jan  1 08:29 ..

-rw-rw-r--    1 root     root          4096 Jan  1 08:30 blue_func

-rw-rw-r--    1 root     root          4096 Jan  1 08:30 red_func

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds#

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds#

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds# cat blue_func

[  367.939811] **** wyb drivers/misc/leds/pwm_leds.c-245-get_blue_func

9

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds#

1默认值为9频率416.7HZ

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds# echo 0 > blue_func

[  387.486088] **** wyb drivers/misc/leds/pwm_leds.c-255-set_blue_func

[  387.498988] pwm_id = 1,>>>function = 0+++

[  387.505686] **** wyb drivers/misc/leds/pwm_leds.c-65-set_pwm

[  387.523484] **** wyb drivers/misc/leds/pwm_leds.c-74-set_pwm

[  387.529991] **** wyb drivers/misc/leds/pwm_leds.c-300-set_blue_func

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds#

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds# cat blue_func

[  505.578676] **** wyb drivers/misc/leds/pwm_leds.c-245-get_blue_func

0

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds#

配置值为0频率10KHZ最暗

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds#

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds# echo 1 > blue_func

[  512.697534] **** wyb drivers/misc/leds/pwm_leds.c-255-set_blue_func

[  512.709935] pwm_id = 1,>>>function = 1+++

[  512.716597] **** wyb drivers/misc/leds/pwm_leds.c-65-set_pwm

[  512.726517] **** wyb drivers/misc/leds/pwm_leds.c-74-set_pwm

[  512.735989] **** wyb drivers/misc/leds/pwm_leds.c-300-set_blue_func

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds#

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds#

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds# cat blue_func

[  578.443656] **** wyb drivers/misc/leds/pwm_leds.c-245-get_blue_func

1

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds#

配置值为1频率10KHZ中等亮度

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds#

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds# echo 2 > blue_func [  607.022921] **** wyb drivers/misc/leds/pwm_leds.c-255-set_blue_func

[  607.037085] pwm_id = 1,>>>function = 2+++

[  607.043501] **** wyb drivers/misc/leds/pwm_leds.c-65-set_pwm

[  607.053190] **** wyb drivers/misc/leds/pwm_leds.c-74-set_pwm

[  607.064587] **** wyb drivers/misc/leds/pwm_leds.c-300-set_blue_func

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds#

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds#

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds# echo 2 > blue_func

[  662.857794] **** wyb drivers/misc/leds/pwm_leds.c-255-set_blue_func

[  662.870006] pwm_id = 1,>>>function = 2+++

[  662.877317] **** wyb drivers/misc/leds/pwm_leds.c-65-set_pwm

[  662.890735] **** wyb drivers/misc/leds/pwm_leds.c-74-set_pwm

[  662.898948] **** wyb drivers/misc/leds/pwm_leds.c-300-set_blue_func

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds#

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds# cat blue_func

[  674.138688] **** wyb drivers/misc/leds/pwm_leds.c-245-get_blue_func

2

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds#

配置为值为2频率10KHZ最高亮度:

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds#

(有兴趣的可以看看:)

root@TinaLinux:/sys/devices/virtual/misc/misc_dev/pwm_leds# cd ..

root@TinaLinux:/sys/devices/virtual/misc/misc_dev#

root@TinaLinux:/sys/devices/virtual/misc/misc_dev#

root@TinaLinux:/sys/devices/virtual/misc/misc_dev# ll

drwxr-xr-x    4 root     root             0 Jan  1 08:29 .

drwxr-xr-x   22 root     root             0 Jan  1 08:29 ..

-r--r--r--    1 root     root          4096 Jan  1 08:29 dev

drwxr-xr-x    2 root     root             0 Jan  1 08:30 power

drwxr-xr-x    2 root     root             0 Jan  1 08:30 pwm_leds

lrwxrwxrwx    1 root     root             0 Jan  1 08:30 subsystem -> ../../../../class/misc

-rw-r--r--    1 root     root          4096 Jan  1 08:29 uevent

root@TinaLinux:/sys/devices/virtual/misc/misc_dev#

501在全志r16平台tinav3.0系统下调通pwm1的10KHZ波形的更多相关文章

  1. 461在全志r16平台tinav3.0系统下使用地磁计QMC5883L

    461在全志r16平台tinav3.0系统下使用地磁计QMC5883L 2018/9/7 14:08 版本:V1.0 开发板:SC3817R SDK:tina v3.0 (基本确认全志tina v3. ...

  2. 460在全志r16平台tinav3.0系统下使用i2c-tools

    460在全志r16平台tinav3.0系统下使用i2c-tools 2018/9/6 19:05 版本:V1.0 开发板:SC3817R SDK:tina v3.0 1.01原始编译全志r16平台ti ...

  3. 009全志R16平台tinav3.0下编译不过的问题

    009全志R16平台tinav3.0下编译不过的问题 2018/11/13 11:39 版本:V1.0 开发板:SC3817R SDK:tina v3.0 1.01原始编译全志r16平台tinav3. ...

  4. 001原始编译全志r6平台tinav3.0.2系统

    001原始编译全志r6平台tinav3.0.2系统 2018/6/8 11:32 版本:V1.0 开发板:R6 SDK:tina v3.0.2 1.01原始编译全志r16平台tinav3.0系统: r ...

  5. 全志tina v3.0系统编译时的时间错误的解决(全志SDK的维护BUG)

    全志tina v3.0系统编译时的时间错误的解决(全志SDK的维护BUG) 2018/6/13 15:52 版本:V1.0 开发板:SC3817R SDK:tina v3.0 1.01原始编译全志r1 ...

  6. 深入浅出-Android系统移植与平台开发(一)- Android4.0系统的下载与编译

    作者:唐老师,华清远见嵌入式学院讲师. 一.Android4.0系统的下载与编译 Android系统的下载与编译,Google的官方网站上已经给出了详细的说明,请参照Android的官方网址: htt ...

  7. SNF快速开发平台3.0之--系统里广播的作用--迅速及时、简明扼要的把信息发送给接收者

    广播信息,即速度快捷.迅速及时.简明扼要的把信息发送给接收者. 当然在SNF快速开发平台上你也可以作为公告使用.不管当做什么使用要满足以下需求: 简单操作:页面操作简单 只需要输入内容就可以发送. 灵 ...

  8. 31全志r58平台Android4.4.2下打开USB摄像头

    31全志r58平台Android4.4.2下打开USB摄像头 2018/10/26 16:00 版本:V1.0 开发板:SC5806 1.系统编译:(略) 2.需要修改的文件: W:\r58_andr ...

  9. 02全志r58平台Android4.4.4下关闭内核中的CPU的开启关闭提示

    02全志r58平台Android4.4.4下关闭内核中的CPU的开启关闭提示 2017/8/18 13:53 版本:V1.0 开发板:SC5806(全志R58平台) SDK:android4.4.4 ...

随机推荐

  1. MVC+ZTree大数据异步树加载

    实例部分: 首先是为ZTree提供的数据规范,定义一个标准的接口,这样对于前台调用是清楚的,简单的,因为它返回的JSON数据将与ZTree默认的数据元素保持一致 /// <summary> ...

  2. 8核 16g 及时释放内存空间

    del  释放 大变量 所在内存空间 GB数据

  3. Ubuntu上配置Eclipse:安装CDT【转】

    本文转载自:http://www.linuxdiyf.com/linux/23519.html 在最新的 Ubuntu Kylin 16.04 中安装了eclipse,在纠结了很久的网络问题之后,开始 ...

  4. 谈一谈以太坊虚拟机EVM的缺陷与不足

    首先,EVM的设计初衷是什么?它为什么被设计成目前我们看的样子呢?根据以太坊官方提供的设计原理说明,EVM的设计目标主要针对以下方面: 简单性(Simplicity) 确定性(Determinism) ...

  5. hdu 5119 (类似于划分数的状态定义) (DP中的计数问题)

    题目描述:求n个数中异或值大于m的方案数有多少个? 设状态f[i][j]代表前i个数异或值为j的方案数有f[i][j]种,那么对于j来说要么选第i个数与前面的i-1个数中的某些数构成j,f[i-1][ ...

  6. bzoj 2784: [JLOI2012]时间流逝【树形期望dp】

    来自lyd课件 发现s和last(s),next(s)成树结构,然后把式子化简成kx+b的形式,做树形dp即可 #include<iostream> #include<cstdio& ...

  7. bzoj 4385: [POI2015]Wilcze doły【单调栈】

    对于每个i,以它为左端点的最优右端点一定是单增的,所以用单调栈维护 具体的,单调栈里放的是和单调的长为d的子段,然后枚举右端点,如果这段的和-当前长为d子段最大的和大于p的话,左端点右移同时注意单调栈 ...

  8. bzoj 4405: [wc2016]挑战NPC【带花树】

    把每个筐子拆成3个,分别表示放0/1/2个,然后把这三个点两两连起来,每一个可以放在筐里的球都想这三个点连边. 这样可以发现,放0个球的时候,匹配数为1,放1个球的时候,匹配数为1,放2个球的时候,匹 ...

  9. phpstorm最新破解办法(2016-10-30)

    还是选择license server.然后复制http://jetbrains.tencent.click/ 这个地址进去就可以啦.不行的时候欢迎留言告知,更新破解方法

  10. java-通过反射获取目标类的属性,方法,构造器

    首先定义一个urse package com.studay_fanshe; public class User { private String uname; private int age; pri ...