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原创 使用 visual studio installer 制作安装包并按照版本号升级

打开写好的工程，如WindowsFormsApplication。Solution 右击 - Add - New Project - Other Project Types - Visual Studio Installer - Setup Project，如命名为Setup。Setup 右击 - View - File System，在 Application Folder 右击 - Ad...

2020-04-07 18:51:34 1518

原创 高通平台配置开机后长按power key功能

开机后长按power key可实现系统重启、关机等功能，如下可配置长按时间以及长按功能:在kernel中有的配置项将覆盖xbl中的配置，即只配置如下第1点即可1. kernel/…/pmxxx.dtsi pmxxx_pon: qcom,power-on@800 { compatible = "qcom,qpnp-power-on"; ... qcom,pon_1 { ...

2020-01-08 17:30:25 4070 9

原创 高通平台配置长按power key开机时间

按下power key后多长时间开机可如下配置：boot_images/…/pm_config_target.c/*key press in milli seconds for valid boot*/pm_pwrkey_dbnc_chk_type pm_pon_pwrkey_dbnc_chk[] = {{PM_PON_PWRKEY_DBNC_CHK_AT_CORE, 3000}} ; //...

2020-01-08 17:09:11 2537 1

原创 Android sensor介绍

首先需定义设备坐标轴方向，调整各sensor方向使之与设备方向一致。加速度计 accel单位：m/s^2。加速度方向：当x轴正方向垂直指向地板时，x轴数值为-9.8。yz轴同理。接口：SPI（或I2C），FIFO模式（数据量大。当数据量到达指定的阈值时，上报一批数据）。校准：需要工厂校准，放置在水平测试台（即使xy为0，z为9.8）。陀螺仪 gyro单位：radians/s...

2019-12-31 16:44:24 498

原创 TI电量计训练

获取电芯chemID必备EV2300/2400、电压表、bqStudio，记录如下过程的时间点、电压、电流、温度。将电池放空，静置5小时，在bqstudio中向电量计发送0x21命令，将电池充满，静置2小时，以0.1C~0.2C的速度将电池放空，静置5小时。参考文档：How to run an Impedance Track gas gauge learning cycle将静置2小时、放...

2019-02-27 18:43:20 3620 7

rt9458.pdf
rt9458充电芯片手册 The RT9458 is a switch-mode single cell Li-Ion/Li-Polymer battery charger for portable applications. It integrates a synchronous PWM controller, power MOSFETs, input current sensing, high accuracy voltage regulation and charge termination circuits. The RT9458 also features USB On-The-Go (OTG)

2020-06-10

bq24610.pdf
bq24610一款TI的充电芯片手册 bq2461x Stand-Alone Synchronous Switched-Mode Li-Ion or Li-Polymer Battery Charger With System Power Selector and Low I q

2020-06-10

bq34z100EVM Wide Range Impedance Track Enabled.pdf
bq34z100一款TI电量计芯片手册 This evaluation module (EVM) is a complete evaluation system for the bq34z100 wide-range fuel gauge for lithium ion, Nickel metal hydride (NiMH) and Nickel Cadmium (NiCd) chemistries when combined with an EV2300 USB adapter and Microsoft ® Windows ® based PC software downloadable from the TI.com website.

2020-06-10

GNNS卫星协议.pdf
NMEA(National Marine Electronics Association) 0183协议简介

2020-04-07

lsm6dsl.pdf
lsm6dsl 加速度传感器+陀螺仪 The LSM6DSL is a system-in-package featuring a 3D digital accelerometer and a 3D digital gyroscope performing at 0.65 mA in high-performance mode and enabling always-on low-power features for an optimal motion experience for the consumer.

2020-04-07

LTR-578ALS_Spec & Design Guides_V1.3.pdf
硬件布局文档 LTR-578ALS is a 3-in-1 sensor module, digital light sensor (ALS) + proximity sensor (PS) + built-in IR LED (940nm) with direct I2C interface, in a miniature chipled lead-free surface mount package (3.94 x 2.36 x 1.35 mm)

2020-04-07

LTR-578ALS-031WA_FINAL_DS_V1.0.pdf
The LTR-578ALS-031WA is an integrated low voltage I2C ambient light sensor (ALS), and proximity sensor (PS), with built-in emitter in a single miniature chipled lead-free surface mount package.

2020-04-07

BMI160 datasheet
bmi160 加速度+陀螺仪芯片手册。The BMI160 is a highly integrated, low power inertial measurement unit (IMU) that provides precise acceleration and angular rate (gyroscopic) measurement.

2020-03-18

BMA253 datasheet
bma253 加速度传感器芯片手册。The BMA253 is a triaxial, low-g acceleration sensor with digital output for consumer applications.

2020-03-18

bh1721fvc-e datasheet
bh1721fvc-e 光线传感器芯片手册。BH1721FVC is an digital Ambient Light Sensor IC for I C bus interface. This IC is the most suitable to obtain the ambient light data for adjusting LCD and Keypad backlight power of Mobile phone. It is possible to detect wide range at High resolution. ( 1 - 65528 lx ).

2020-03-18

AK09918C datasheet
ak09918c 地磁传感器的芯片手册 AK09918 is 3-axis electronic compass IC with high sensitive Hall sensor technology.

2020-03-18

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