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DRV425-Q1汽车级磁通门传感器技术文档

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"TI-DRV425-Q1.pdf" TI的DRV425-Q1是一款专为汽车应用设计的高性能集成式磁通门传感器前端。该器件符合AEC-Q100一级标准，适用于在-40°C至+125°C的温度范围内工作的汽车电子系统，具有出色的功能安全性，并提供了相关文档来支持功能安全系统的设计。 DRV425-Q1的核心特性在于其高精度。它拥有±8µT的最大失调电压、±5nT/°C的温度漂移、0.04%的典型增益误差、±7ppm/°C的增益漂移、±0.1%的线性度以及1.5nT/√Hz的低噪声水平。这些参数确保了在各种环境条件下，传感器能够提供精确的磁场测量。传感器的工作范围可调，最大可达±2mT，可以通过外部电阻器调整范围和增益，以适应不同的应用需求。该器件还提供了两种可选带宽，分别为47kHz和32kHz，以满足不同速度和响应时间的要求。内置的精度基准具有2%的最大误差和50ppm/°C的最大漂移，用户可以选择2.5V或1.65V的基准电压，也可以选择VDD/2的比例模式。此外，DRV425-Q1具备诊断功能，可以检测超范围和错误状态，这对于保障系统的可靠性和安全性至关重要。在应用方面，DRV425-Q1广泛适用于电池管理系统（BMS）、逆变器和电机控制、直流/直流转换器、动力系统电流传感器、动力系统扭矩传感器以及电机的诊断和监控等场合。其电源电压范围为3.0V至5.5V，这使得该器件能够在广泛的电源条件下稳定工作。 DRV425-Q1是一款高度集成、高精度且功能丰富的磁通门传感器前端，特别适合于要求严苛的汽车电子应用，能够提供可靠且精确的磁场测量数据，同时具备强大的诊断和保护功能。设计者在进行实际项目设计时，应当参考最新的英文版数据手册，以获取最准确的技术信息。

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Temperature (°C)

Linearity (%)

-40 -25 -10 5 20 35 50 65 80 95 110 125

0.025

0.05

0.075

0.1

0.125

0.15

0.175

0.2

D011

Device 1

Device 2

Device 3

Noise Frequency (kHz)

Noise Density (nT/—Hz)

0.0001 0.001 0.01 0.1 1 10 100

0.1

100

D006

Linearity (%)

Devices (%)

0.05

0.06

0.07

0.08

0.09

0.1

0.11

0.12

0.13

0.14

D057

Supply Voltage (V)

Linearity (%)

3 3.5 4 4.5 5 5.5

0.025

0.05

0.075

0.1

0.125

0.15

0.175

0.2

D010

Temperature (°C)

Gain (mA/mT)

-40 -25 -10 5 20 35 50 65 80 95 110 125

12.05

12.1

12.15

12.2

12.25

12.3

12.35

D009

Device 1

Device 2

Device 3

Supply Voltage (V)

Gain (mA/mT)

3 3.5 4 4.5 5 5.5

12.05

12.1

12.15

12.2

12.25

12.3

12.35

D008

DRV425-Q1

ZHCSK74A –AUGUST 2019–REVISED APRIL 2020

www.ti.com.cn

Typical Characteristics (接接下下页页)

at VDD = 5 V and T

= 25°C (unless otherwise noted)

图图 7. Fluxgate Sensor Front-End Gain vs

Supply Voltage

图图 8. Fluxgate Sensor Front-End Gain vs Temperature

图图 9. Fluxgate Sensor Front-End Linearity Histogram

图图 10. Fluxgate Sensor Front-End Linearity vs

Supply Voltage

图图 11. Fluxgate Sensor Front-End Linearity vs Temperature

图图 12. Fluxgate Sensor Front-End Noise Density vs Noise

Frequency

Output Offset (PV)

Devices (%)

-50

-40

-30

-20

-10

D015

Temperature (°C)

Compensation Coil Resistance (:)

-40 -25 -10 5 20 35 50 65 80 95 110 125

100

110

120

130

140

150

D054

Compensation Coil Resistance (:)

Devices (%)

100

102

104

106

108

110

112

114

D053

Temperature (°C)

Saturation Trip Level (mT)

-40 -25 -10 5 20 35 50 65 80 95 110 125

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

D052

Saturation Trip Level (mT)

Devices (%)

1.3

1.4

1.5

1.6

1.7

1.8

1.9

2.1

D007

Saturation Trip Level (mT)

Devices (%)

1.3

1.4

1.5

1.6

1.7

1.8

1.9

2.1

D013

DRV425-Q1

www.ti.com.cn

ZHCSK74A –AUGUST 2019–REVISED APRIL 2020

Typical Characteristics (接接下下页页)

at VDD = 5 V and T

= 25°C (unless otherwise noted)

VDD = 5 V

图图 13. Fluxgate Sensor Saturation (ERROR Pin)

Trip Level Histogram

VDD = 3.3 V

图图 14. Fluxgate Sensor Saturation (ERROR Pin)

Trip Level Histogram

图图 15. Fluxgate Sensor Saturation (ERROR Pin) Trip Level

vs Temperature

图图 16. Compensation Coil Resistance Histogram

图图 17. Compensation Coil Resistance vs Temperature

VDD = 5 V

图图 18. Shunt-Sense Amplifier Output Offset Histogram

剩余41页未读，继续阅读

请解释以下STM32H747XIH6中lcd c文件代码中的一段，谢谢：/** * @brief Link board LCD drivers to STM32 LCD Utility drivers * @param pDrv Structure of LCD functions / void UTIL_LCD_SetFuncDriver(const LCD_UTILS_Drv_t pDrv) { FuncDriver.DrawBitmap = pDrv->DrawBitmap; FuncDriver.FillRGBRect = pDrv->FillRGBRect; FuncDriver.DrawHLine = pDrv->DrawHLine; FuncDriver.DrawVLine = pDrv->DrawVLine; FuncDriver.FillRect = pDrv->FillRect; FuncDriver.GetPixel = pDrv->GetPixel; FuncDriver.SetPixel = pDrv->SetPixel; FuncDriver.GetXSize = pDrv->GetXSize; FuncDriver.GetYSize = pDrv->GetYSize; FuncDriver.SetLayer = pDrv->SetLayer; FuncDriver.GetFormat = pDrv->GetFormat; DrawProp->LcdLayer = 0; DrawProp->LcdDevice = 0; FuncDriver.GetXSize(0, &DrawProp->LcdXsize); FuncDriver.GetYSize(0, &DrawProp->LcdYsize); FuncDriver.GetFormat(0, &DrawProp->LcdPixelFormat); }

这段代码的作用是将STM32 LCD Utility的驱动程序与板载LCD驱动程序连接起来，实现LCD显示。函数的参数pDrv是一个结构体，包含了LCD驱动程序的各个函数指针。将这些函数指针赋值给FuncDriver结构体中对应的函数指针，...

使用ubuntu20.04基于linux 5.15版本的内核编译驱动程序时，报错：make make CC=x86_64-linux-gnu-gcc-9 -C /lib/modules/5.15.0-72-generic/build M=/home/test/PCIE_Trans2PIC/drv modules make[1]: Entering directory '/usr/src/linux-headers-5.15.0-72-generic' warning: the compiler differs from the one used to build the kernel The kernel was built by: gcc (Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0 You are using: x86_64-linux-gnu-gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0 CC [M] /home/test/PCIE_Trans2PIC/drv/asu_pcie.o MODPOST /home/test/PCIE_Trans2PIC/drv/Module.symvers CC [M] /home/test/PCIE_Trans2PIC/drv/asu_pcie.mod.o LD [M] /home/test/PCIE_Trans2PIC/drv/asu_pcie.ko BTF [M] /home/test/PCIE_Trans2PIC/drv/asu_pcie.ko /bin/sh: 1: pahole: not found make[3]: * [scripts/Makefile.modfinal:60: /home/test/PCIE_Trans2PIC/drv/asu_pcie.ko] Error 127 make[3]: * Deleting file '/home/test/PCIE_Trans2PIC/drv/asu_pcie.ko' make[2]: * [scripts/Makefile.modpost:139: __modpost] Error 2 make[1]: * [Makefile:1822: modules] Error 2 make[1]: Leaving directory '/usr/src/linux-headers-5.15.0-72-generic' make: *** [Makefile:9: all] Error 2 ，该如何解决

make make CC=x86_64-linux-gnu-gcc-9 -C /lib/modules/5.15.0-72-generic/build M=/home/test/PCIE_Trans2PIC/drv \ EXTRA_CFLAGS="-I/usr/include/dwarves" \ V=1 modules ``` 其中，`-I/usr/include/dwarves`...

#define SETFN(fn) if(drv->fn) drv->drv.fn = amba_##fn

这是一个宏定义，它定义了一个名为SETFN的宏，宏的作用是根据传入的函数名(fn)来设置一个驱动程序(drv)中对应的函数指针(drv->drv.fn)，如果该函数指针非空，则将其指向名为amba_加上该函数名的函数。例如，如果...

11:08:55 ** Incremental Build of configuration Debug for project ccc make -j32 all arm-none-eabi-gcc "../drivers/drv_usart.c" ../drivers/drv_usart.c: In function 'stm32_configure': ../drivers/drv_usart.c:338:16: error: 'struct serial_configure' has no member named 'flowcontrol' switch (cfg->flowcontrol) ^ ../drivers/drv_usart.c:340:10: error: 'RT_SERIAL_FLOWCONTROL_NONE' undeclared (first use in this function) case RT_SERIAL_FLOWCONTROL_NONE: ^ ../drivers/drv_usart.c:340:10: note: each undeclared identifier is reported only once for each function it appears in ../drivers/drv_usart.c:343:10: error: 'RT_SERIAL_FLOWCONTROL_CTSRTS' undeclared (first use in this function) case RT_SERIAL_FLOWCONTROL_CTSRTS: ^ make: * [drivers/subdir.mk:99: drivers/drv_usart.o] Error 1 "make -j32 all" terminated with exit code 2. Build might be incomplete. 11:08:56 Build Failed. 4 errors, 0 warnings. (took 800ms)

这个错误是由于在文件 "../drivers/drv_usart.c" 中的函数 'stm32_configure' 中使用了一个未声明的成员 'flowcontrol' 导致的。同时还有两个未声明的标识符 'RT_SERIAL_FLOWCONTROL_NONE' 和 'RT_SERIAL_FLOW...

xorg-x11-drv-openchrome是什么包

xorg-x11-drv-openchrome是一个在Linux系统中用于支持VIA/S3G UniChrome系列显示芯片的X.Org开放源代码图形设备驱动程序包。它提供了对这些显示芯片的基本支持，包括2D图形加速和X视频扩展 (Xv) 支持。OpenChrome...

23:20:10 ** Incremental Build of configuration Debug for project STM32DRV2605L make -j12 all arm-none-eabi-gcc "../Core/Src/main.c" -mcpu=cortex-m0plus -std=gnu11 -g3 -DDEBUG -DUSE_HAL_DRIVER -DSTM32G030xx -c -I../Core/Inc -I../Drivers/STM32G0xx_HAL_Driver/Inc -I../Drivers/STM32G0xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G0xx/Include -I../Drivers/CMSIS/Include -I"Z:/Users/Y/STM32CubeIDE/workspace_1.12.0/STM32DRV2605L/Core/drv2666" -O0 -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Core/Src/main.d" -MT"Core/Src/main.o" --specs=nano.specs -mfloat-abi=soft -mthumb -o "Core/Src/main.o" In file included from ../Core/Src/main.c:3: Z:/Users/Y/STM32CubeIDE/workspace_1.12.0/STM32DRV2605L/Core/drv2666/drv2605.h:33:10: fatal error: Arduino.h: No such file or directory 33 | #include <Arduino.h> | ^~~~~~~~~~~ compilation terminated. make: * [Core/Src/subdir.mk:34: Core/Src/main.o] Error 1 "make -j12 all" terminated with exit code 2. Build might be incomplete. 23:20:10 Build Failed. 2 errors, 0 warnings. (took 320ms) 上述代码中这些问题怎么解决

2. 在 `drv2605.h` 头文件中，检查是否有其他地方包含了 `Arduino.h` 头文件。如果有，请将其删除或注释掉。此外，请确保你的项目配置正确，包括正确配置了包含路径和其他依赖项。根据你提供的信息，上述错误...

23:11:37 ** Incremental Build of configuration Debug for project STM32DRV2605L make -j12 all arm-none-eabi-gcc "../Core/Src/main.c" -mcpu=cortex-m0plus -std=gnu11 -g3 -DDEBUG -DUSE_HAL_DRIVER -DSTM32G030xx -c -I../Core/Inc -I../Drivers/STM32G0xx_HAL_Driver/Inc -I../Drivers/STM32G0xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32G0xx/Include -I../Drivers/CMSIS/Include -I"Z:/Users/Y/STM32CubeIDE/workspace_1.12.0/STM32DRV2605L/Core/drv2666" -O0 -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Core/Src/main.d" -MT"Core/Src/main.o" --specs=nano.specs -mfloat-abi=soft -mthumb -o "Core/Src/main.o" In file included from ../Core/Src/main.c:2: Z:/Users/Y/STM32CubeIDE/workspace_1.12.0/STM32DRV2605L/Core/drv2666/drv2605.h:33:10: fatal error: Arduino.h: No such file or directory 33 | #include <Arduino.h> | ^~~~~~~~~~~ compilation terminated. make: * [Core/Src/subdir.mk:34: Core/Src/main.o] Error 1 "make -j12 all" terminated with exit code 2. Build might be incomplete. 23:11:37 Build Failed. 2 errors, 0 warnings. (took 304ms) 这个错误怎么解决

这个错误是由于在你的 `main.c` 文件中的第二...另外，确保你的项目中只包含与STM32G030F6P6和DRV2605L相关的头文件，并根据硬件和库的要求进行正确的配置和初始化。希望能帮助到你！如果还有其他问题，请随时提问。

Code\main.asm(16): error A318: can't open file 'drv_i2c.inc'

在这种情况下，编译器在编译代码时无法找到名为 `drv_i2c.inc` 的文件。你需要检查代码中是否正确引用了该文件并确保该文件存在于正确的位置。你可以尝试使用绝对路径或相对路径来指定该文件的位置。例如，如果文件...

static int mt6375_chg_init_psy(struct mt6375_chg_data *ddata) { struct power_supply_config cfg = { .drv_data = ddata, .of_node = ddata->dev->of_node, .supplied_to = mt6375_psy_supplied_to, .num_supplicants = ARRAY_SIZE(mt6375_psy_supplied_to), }; mt_dbg(ddata->dev, "%s\n", func); memcpy(&ddata->psy_desc, &mt6375_psy_desc, sizeof(ddata->psy_desc)); ddata->psy_desc.name = dev_name(ddata->dev); ddata->psy = devm_power_supply_register(ddata->dev, &ddata->psy_desc, &cfg); return IS_ERR(ddata->psy) ? PTR_ERR(ddata->psy) : 0; } 如何用这段代码里的ddata->psy_desc.name = dev_name(ddata->dev);调用我想要使用的驱动

这段代码是在驱动程序中初始化电源供应子系统的电源属性。其中 `ddata->psy_desc` 是电源供应子系统的描述符，`ddata->psy_desc.name` 是该供应子系统的名称。`ddata->dev` 则是指向设备结构体的指针。...

static int mt6375_chg_init_psy(struct mt6375_chg_data *ddata) { struct power_supply_config cfg = { .drv_data = ddata, .of_node = ddata->dev->of_node, .supplied_to = mt6375_psy_supplied_to, .num_supplicants = ARRAY_SIZE(mt6375_psy_supplied_to), }; mt_dbg(ddata->dev, "%s\n", func); memcpy(&ddata->psy_desc, &mt6375_psy_desc, sizeof(ddata->psy_desc)); ddata->psy_desc.name = dev_name(ddata->dev); ddata->psy = devm_power_supply_register(ddata->dev, &ddata->psy_desc, &cfg); return IS_ERR(ddata->psy) ? PTR_ERR(ddata->psy) : 0; }请详细分析说明一下这段代码的流程，以及这段函数中struct power_supply_config cfg = { .drv_data = ddata, .of_node = ddata->dev->of_node, .supplied_to = mt6375_psy_supplied_to, .num_supplicants = ARRAY_SIZE(mt6375_psy_supplied_to), };的作用

2. 初始化成员变量drv_data为ddata，表示驱动数据为ddata。 3. 初始化成员变量of_node为ddata->dev->of_node，表示设备树节点指针。 4. 初始化成员变量supplied_to为mt6375_psy_supplied_to，表示供电对象。 5. ...

#include <Adafruit_I2CDevice.h> #define DRV2605_ADDR 0x5A ///< Device I2C address #define DRV2605_REG_STATUS 0x00 ///< Status register #define DRV2605_REG_MODE 0x01 ///< Mode register #define DRV2605_MODE_INTTRIG 0x00 ///< Internal trigger mode #define DRV2605_MODE_EXTTRIGEDGE 0x01 ///< External edge trigger mode #define DRV2605_MODE_EXTTRIGLVL 0x02 ///< External level trigger mode #define DRV2605_MODE_PWMANALOG 0x03 ///< PWM/Analog input mode #define DRV2605_MODE_AUDIOVIBE 0x04 ///< Audio-to-vibe mode #define DRV2605_MODE_REALTIME 0x05 ///< Real-time playback (RTP) mode #define DRV2605_MODE_DIAGNOS 0x06 ///< Diagnostics mode #define DRV2605_MODE_AUTOCAL 0x07 ///< Auto calibration mode #define DRV2605_REG_RTPIN 0x02 ///< Real-time playback input register #define DRV2605_REG_LIBRARY 0x03 ///< Waveform library selection register #define DRV2605_REG_WAVESEQ1 0x04 ///< Waveform sequence register 1 #define DRV2605_REG_WAVESEQ2 0x05 ///< Waveform sequence register 2 #define DRV2605_REG_WAVESEQ3 0x06 ///< Waveform sequence register 3 #define DRV2605_REG_WAVESEQ4 0x07 ///< Waveform sequence register 4 #define DRV2605_REG_WAVESEQ5 0x08 ///< Waveform sequence register 5 #define DRV2605_REG_WAVESEQ6 0x09 ///< Waveform sequence register 6 #define DRV2605_REG_WAVESEQ7 0x0A ///< Waveform sequence register 7 #define DRV2605_REG_WAVESEQ8 0x0B ///< Waveform sequence register 8 #define DRV2605_REG_GO 0x0C ///< Go register #define DRV2605_REG_OVERDRIVE 0x0D ///< Overdrive time offset register #define DRV2605_REG_SUSTAINPOS 0x0E ///< Sustain time offset, positive register #define DRV2605_REG_SUSTAINNEG 0x0F ///< Sustain time offset, negative register #define DRV2605_REG_BREAK 0x10 ///< Brake time offset register #define DRV2605_REG_AUDIOCTRL 0x11 ///< Audio-to-vibe control register #define DRV2605_REG_AUDIOLVL \ 0x12 ///< Audio-to-vibe minimum input level register #define DRV2605_REG_AUDIOMAX \ 0x13 ///< Audio-to-vibe maximum input level register #define DRV2605_REG_AUDIOOUTMIN \ 0x14 ///< Audio-to-vibe minimum output drive register #define DRV2605_REG_AUDIOOUTMAX \ 0x15 ///< Audio-to-vibe maximum output drive register #define DRV2605_REG_RATEDV 0x16 ///< Rated voltage register #define DRV2605_REG_CLAMPV 0x17 ///< Overdrive clamp voltage register #define DRV2605_REG_AUTOCALCOMP \ 0x18 ///< Auto-calibration compensation result register #define DRV2605_REG_AUTOCALEMP \ 0x19 ///< Auto-calibration back-EMF result register #define DRV2605_REG_FEEDBACK 0x1A ///< Feedback control register #define DRV2605_REG_CONTROL1 0x1B ///< Control1 Register #define DRV2605_REG_CONTROL2 0x1C ///< Control2 Register #define DRV2605_REG_CONTROL3 0x1D ///< Control3 Register #define DRV2605_REG_CONTROL4 0x1E ///< Control4 Register #define DRV2605_REG_VBAT 0x21 ///< Vbat voltage-monitor register #define DRV2605_REG_LRARESON 0x22 ///< LRA resonance-period register

这段代码定义了一些常量和寄存器地址，用于与 DRV2605L 震动马达驱动器芯片进行通信和控制。以下是对其中各个常量和寄存器地址的解释： - `DRV2605_ADDR`：DRV2605L 芯片的 I2C 地址。 - `DRV2605_REG_STATUS`：...

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