计算机网站建设论文.,中国十大企业培训公司,友链大全,深圳一公司今年成立16家核检机构MM32F3273G8P火龙果开发板MindSDK开发教程12 -获取msa311加速器的敲击事件
1、功能描述
msa311可以识别单击、双击事件#xff0c;类似手机上的点击返回#xff0c;双击截屏功能。 单击#xff0c;双击都能产生中断事件。 中断事件产生后#xff0c;从对应的状态寄存器读…MM32F3273G8P火龙果开发板MindSDK开发教程12 -获取msa311加速器的敲击事件
1、功能描述
msa311可以识别单击、双击事件类似手机上的点击返回双击截屏功能。 单击双击都能产生中断事件。 中断事件产生后从对应的状态寄存器读取是双击还是单击。 中断需要打开映射。 单双击可设置阈值。 对应寄存器的描述如下
2、设置相关寄存器
a、设置tap_quite b、设置tap_shock c、设置tap_duration d、设置tap_threshole e、设置中断映射 f、设置中断使能。
对应代码 #if ENABLE_TAP_DETECT 1Msa311_SetTapQuiteParam(MSA311_TAPQUITE_30_MS);Msa311_GetTapQuiteParam(tapQuite);printf(Msa311_getTapQuiteParam %s\r\n,tapQuite MSA311_TAPQUITE_30_MS ? MSA311_TAPQUITE_30_MS : MSA311_TAPQUITE_20_MS);Msa311_SetTapShockParam(MSA311_TAPSHOCK_50_MS);Msa311_GetTapShockParam(tapShock);printf(Msa311_GetTapShockParam %s\r\n,tapShock MSA311_TAPSHOCK_50_MS ? MSA311_TAPSHOCK_50_MS : MSA311_TAPSHOCK_70_MS);Msa311_SetTapDurationParam(MSA311_TAPDUR_250_MS);Msa311_GetTapDurationParam(tapDuration);printf(Msa311_GetTapDurationParam 0x%02x\r\n,tapDuration);Msa311_ThresholdConvertToRegister(1.0f,reg);Msa311_SetTapThresholdParam(reg);Msa311_GetTapThresholdParam(threshold);printf(Msa311_GetTapThresholdParam 0x%02x\r\n,threshold);//使能S_TAP D_TAP IntMsa311_SetInterruptMap0(MSA311_INTERRUPT_D_TAP,MSA311_BOOL_TRUE);Msa311_SetInterruptMap0(MSA311_INTERRUPT_S_TAP,MSA311_BOOL_TRUE);Msa311_GetInterruptMap0(MSA311_INTERRUPT_D_TAP,enable);printf(Msa311_GetInterruptMap0 MSA311_INTERRUPT_D_TAP %s\r\n,enableMSA311_BOOL_TRUE ? enable : disable);Msa311_GetInterruptMap0(MSA311_INTERRUPT_S_TAP,enable);printf(Msa311_GetInterruptMap0 MSA311_INTERRUPT_S_TAP %s\r\n,enableMSA311_BOOL_TRUE ? enable : disable);Msa311_SetInterrupt0Enable(MSA311_INTERRUPT_D_TAP_EN,MSA311_BOOL_TRUE);Msa311_GetInterrupt0Enable(MSA311_INTERRUPT_D_TAP_EN,enable);printf(Msa311_GetInterrupt0Enable MSA311_INTERRUPT_D_TAP %s\r\n,enableMSA311_BOOL_TRUE ? enable : disable);Msa311_SetInterrupt0Enable(MSA311_INTERRUPT_S_TAP_EN,MSA311_BOOL_TRUE);Msa311_GetInterrupt0Enable(MSA311_INTERRUPT_S_TAP_EN,enable);printf(Msa311_GetInterrupt0Enable MSA311_INTERRUPT_S_TAP_EN %s\r\n,enableMSA311_BOOL_TRUE ? enable : disable);#endif 每个功能函数
static bool Msa311_SetTapQuiteParam(msa311_tapquite_t tapQuite)
{uint8_t r_data;uint8_t w_data;bool bRet 0;bRet Msa311_ReadReg(MSA311_REG_TAPDUR,r_data);if (bRet false){perror(Msa311_SetTapQuiteParam read error\n);return false;}w_data ((r_data MSA311_TAP_QUITE_MASK) | tapQuite);bRet Msa311_WirteReg(MSA311_REG_TAPDUR,w_data);if (bRet false){perror(Msa311_SetTapQuiteParam write error\n);return false;}return bRet;
}static bool Msa311_GetTapQuiteParam(msa311_tapquite_t *tapQuite)
{ uint8_t r_data;bool bRet 0;bRet Msa311_ReadReg(MSA311_REG_TAPDUR,r_data);if (bRet false){perror(Msa311_GetRange read error\n);return false;}*tapQuite (r_data ~(MSA311_TAP_QUITE_MASK));return bRet;
}static bool Msa311_SetTapShockParam(msa311_tapshock_t tapShock)
{uint8_t r_data;uint8_t w_data;bool bRet 0;bRet Msa311_ReadReg(MSA311_REG_TAPDUR,r_data);if (bRet false){perror(Msa311_SetTapShockParam read error\n);return false;}w_data ((r_data MSA311_TAP_SHOCK_MASK) | tapShock);bRet Msa311_WirteReg(MSA311_REG_TAPDUR,w_data);if (bRet false){perror(Msa311_SetTapShockParam write error\n);return false;}return bRet;
}static bool Msa311_GetTapShockParam(msa311_tapshock_t *tapShock)
{ uint8_t r_data;bool bRet 0;bRet Msa311_ReadReg(MSA311_REG_TAPDUR,r_data);if (bRet false){perror(Msa311_GetTapShockParam read error\n);return false;}*tapShock (r_data ~(MSA311_TAP_SHOCK_MASK));return bRet;
}static bool Msa311_SetTapDurationParam(msa311_tapduration_t tapDuration)
{uint8_t r_data;uint8_t w_data;bool bRet 0;bRet Msa311_ReadReg(MSA311_REG_TAPDUR,r_data);if (bRet false){perror(Msa311_SetTapDurationParam read error\n);return false;}w_data ((r_data MSA311_TAP_DUR_MASK) | tapDuration);bRet Msa311_WirteReg(MSA311_REG_TAPDUR,w_data);if (bRet false){perror(Msa311_SetTapDurationParam write error\n);return false;}return bRet;
}static bool Msa311_GetTapDurationParam(msa311_tapduration_t *tapDuration)
{ uint8_t r_data;bool bRet 0;bRet Msa311_ReadReg(MSA311_REG_TAPDUR,r_data);if (bRet false){perror(Msa311_GetTapDurationParam read error\n);return false;}*tapDuration (r_data ~(MSA311_TAP_DUR_MASK));return bRet;
}static uint8_t Msa311_ThresholdConvertToRegister(float g, uint8_t *reg)
{msa311_range_t range;Msa311_GetRange(range);switch (range){case MSA311_RANGE_2_G/* constant-expression */:/* code */*reg (int8_t)(g / 0.0625f); break;case MSA311_RANGE_4_G/* constant-expression */:/* code */*reg (int8_t)(g / 0.125f); break;case MSA311_RANGE_8_G/* constant-expression */:/* code */*reg (int8_t)(g / 0.250f); break;case MSA311_RANGE_16_G/* constant-expression */:/* code */*reg (int8_t)(g / 0.5f); break; default:printf(Msa311_ThresholdConvertToRegister error\r\n);break;}return 0;
}static uint8_t Msa311_ThresholdConvertToData(uint8_t reg, float *g)
{msa311_range_t range;Msa311_GetRange(range);switch (range){case MSA311_RANGE_2_G/* constant-expression */:/* code */*g (float)(reg) * 0.0625f; break;case MSA311_RANGE_4_G/* constant-expression */:/* code */*g (float)(reg) * 0.125f; break;case MSA311_RANGE_8_G/* constant-expression */:/* code */*g (float)(reg) * 0.250f; break;case MSA311_RANGE_16_G/* constant-expression */:/* code */*g (float)(reg) * 0.500f; break; default:printf(Msa311_ThresholdConvertToData error\r\n);break;}*g (float)(reg) * 0.0039f; return 0;
}static bool Msa311_SetTapThresholdParam(uint8_t threshold)
{uint8_t r_data;uint8_t w_data;bool bRet 0;w_data threshold;bRet Msa311_WirteReg(MSA311_REG_TAPTH,w_data);if (bRet false){perror(Msa311_SetTapThresholdParam write error\n);return false;}return bRet;
}static bool Msa311_GetTapThresholdParam(uint8_t *threshold)
{ uint8_t r_data;bool bRet 0;bRet Msa311_ReadReg(MSA311_REG_TAPTH,r_data);if (bRet false){perror(Msa311_SetTapThresholdParam read error\n);return false;}*threshold r_data;return bRet;
}static bool Msa311_SetInterruptMap0(msa311_interrupt_map0_t type, msa311_bool_t enable)
{uint8_t r_data;uint8_t w_data;bool bRet 0;bRet Msa311_ReadReg(MSA311_REG_INTMAP0,r_data);if (bRet false){perror(Msa311_SetInterruptMap0 read error\n);return false;}r_data ~(1 type); /* clear type */r_data | enable type; bRet Msa311_WirteReg(MSA311_REG_INTMAP0,r_data);if (bRet false){perror(Msa311_SetInterruptMap0 write error\n);return false;}return bRet;
}static bool Msa311_GetInterruptMap0(msa311_interrupt_map0_t type, msa311_bool_t *enable)
{uint8_t r_data;bool bRet 0;bRet Msa311_ReadReg(MSA311_REG_INTMAP0,r_data);if (bRet false){perror(Msa311_SetInterruptMap0 read error\n);return false;}r_data (1 type); /* clear config */*enable (msa311_bool_t)(r_data type); return 0;
}static bool Msa311_SetInterrupt0Enable(msa311_interrupt_sw0_t type, msa311_bool_t enable)
{uint8_t r_data;uint8_t w_data;bool bRet 0;bRet Msa311_ReadReg(MSA311_REG_INTSET0,r_data);if (bRet false){perror(Msa311_SetInterrupt0Enable read error\n);return false;}r_data ~(1 type); /* clear type */r_data | enable type; bRet Msa311_WirteReg(MSA311_REG_INTSET0,r_data);if (bRet false){perror(Msa311_SetInterrupt0Enable write error\n);return false;}return bRet;
}static bool Msa311_GetInterrupt0Enable(msa311_interrupt_sw0_t type, msa311_bool_t *enable)
{uint8_t r_data;bool bRet 0;bRet Msa311_ReadReg(MSA311_REG_INTMAP0,r_data);if (bRet false){perror(Msa311_GetInterrupt0Enable read error\n);return false;}r_data (1 type); /* clear config */*enable (msa311_bool_t)(r_data type); return 0;
}static bool Msa311_SetInterrupt1Enable(msa311_interrupt_sw1_t type, msa311_bool_t enable)
{uint8_t r_data;uint8_t w_data;bool bRet 0;bRet Msa311_ReadReg(MSA311_REG_INTSET1,r_data);if (bRet false){perror(Msa311_SetInterrupt1Enable read error\n);return false;}r_data ~(1 type); /* clear type */r_data | enable type; bRet Msa311_WirteReg(MSA311_REG_INTSET1,r_data);if (bRet false){perror(Msa311_SetInterrupt1Enable write error\n);return false;}return bRet;
}static bool Msa311_GetInterrupt1Enable(msa311_interrupt_sw1_t type, msa311_bool_t *enable)
{uint8_t r_data;bool bRet 0;bRet Msa311_ReadReg(MSA311_REG_INTMAP1,r_data);if (bRet false){perror(Msa311_GetInterrupt1Enable read error\n);return false;}r_data (1 type); /* clear config */*enable (msa311_bool_t)(r_data type); return 0;
}static bool Msa311_GetInterruptState(msa311_int_state_t state, msa311_bool_t *enable)
{uint8_t r_data;bool bRet 0;bRet Msa311_ReadReg(MSA311_REG_MOTIONINT,r_data);if (bRet false){perror(Msa311_GetInterrupt1Enable read error\n);return false;}r_data (1 state); /* clear config */*enable (msa311_bool_t)(r_data state); return 0;
}对应头文件
#ifndef __MSA311_H__
#define __MSA311_H__#define MSA311_I2CADDR_DEFAULT_7 (0x62) /// Fixed I2C address
#define MSA311_I2CADDR_DEFAULT_8 (0xC4) /// Fixed I2C address/**/#define MSA311_REG_RESET 0x00 /// Register soft reset
#define MSA311_REG_PARTID 0x01 /// Register that contains the part ID
#define MSA311_REG_OUT_X_L 0x02 /// Register address for X axis lower byte
#define MSA311_REG_OUT_X_H 0x03 /// Register address for X axis higher byte
#define MSA311_REG_OUT_Y_L 0x04 /// Register address for Y axis lower byte
#define MSA311_REG_OUT_Y_H 0x05 /// Register address for Y axis higher byte
#define MSA311_REG_OUT_Z_L 0x06 /// Register address for Z axis lower byte
#define MSA311_REG_OUT_Z_H 0x07 /// Register address for Z axis higher byte
#define MSA311_REG_MOTIONINT 0x09 /// Register address for motion interrupt
#define MSA311_REG_DATAINT 0x0A /// Register address for data interrupt
#define MSA311_REG_CLICKSTATUS 0x0B /// Register address for click/doubleclick status
#define MSA311_REG_ORIENTATION_STATUS 0x0C /// Register address for orientation status
#define MSA311_REG_RESRANGE 0x0F /// Register address for resolution range
#define MSA311_REG_ODR 0x10 /// Register address for data rate setting
#define MSA311_REG_POWERMODE 0x11 /// Register address for power mode setting
#define MSA311_REG_INTSET0 0x16 /// Register address for interrupt setting #0
#define MSA311_REG_INTSET1 0x17 /// Register address for interrupt setting #1
#define MSA311_REG_INTMAP0 0x19 /// Register address for interrupt map #0
#define MSA311_REG_INTMAP1 0x1A /// Register address for interrupt map #1
#define MSA311_REG_TAPDUR 0x2A /// Register address for tap duration
#define MSA311_REG_TAPTH 0x2B /// Register address for tap threshold#define MSA311_REG_OFFSET_X 0x38
#define MSA311_REG_OFFSET_Y 0x39
#define MSA311_REG_OFFSET_Z 0x3A#define MSA311_POWER_MODE_MSAK 0x3F
#define MSA311_POWER_MODE_SHIFT 0x05u/** The accelerometer power mode */
typedef enum {MSA311_NORMALMODE 0x00, /// Normal (high speed) modeMSA311_LOWPOWERMODE 0x40, /// Low power (slow speed) modeMSA311_SUSPENDMODE 0xC0, /// Suspend (sleep) mode
} msa311_powermode_t;#define MSA311_AXES_ENABLE_MSAK 0x1F
typedef enum{AXES_DISABLE 0x00,AXES_ENABLE 0xE0,
}msa311_axes_state_t;#define MSA311_DATA_RATE_MASK 0xF0
/** The accelerometer data rate */
typedef enum {MSA311_DATARATE_1_HZ 0x00, /// 1 HzMSA311_DATARATE_1_95_HZ 0x01, /// 1.95 HzMSA311_DATARATE_3_9_HZ 0x02, /// 3.9 HzMSA311_DATARATE_7_81_HZ 0x03, /// 7.81 HzMSA311_DATARATE_15_63_HZ 0x04, /// 15.63 HzMSA311_DATARATE_31_25_HZ 0x05, /// 31.25 HzMSA311_DATARATE_62_5_HZ 0x06, /// 62.5 HzMSA311_DATARATE_125_HZ 0x07, /// 125 HzMSA311_DATARATE_250_HZ 0x08, /// 250 HzMSA311_DATARATE_500_HZ 0x09, /// 500 HzMSA311_DATARATE_1000_HZ 0x0A, /// 1000 Hz
} msa311_dataRate_t;#define MSA311_BAND_WIDTH_MASK 0xE1
/** The accelerometer bandwidth */
typedef enum {MSA301_BANDWIDTH_1_95_HZ 0x00, /// 1.95 HzMSA301_BANDWIDTH_3_9_HZ 0x06, /// 3.9 HzMSA301_BANDWIDTH_7_81_HZ 0x08, /// 7.81 HzMSA301_BANDWIDTH_15_63_HZ 0x0A, /// 15.63 HzMSA301_BANDWIDTH_31_25_HZ 0x0C, /// 31.25 HzMSA301_BANDWIDTH_62_5_HZ 0x0E, /// 62.5 HzMSA301_BANDWIDTH_125_HZ 0x10, /// 125 HzMSA301_BANDWIDTH_250_HZ 0x12, /// 250 HzMSA301_BANDWIDTH_500_HZ 0x14, /// 500 Hz
} msa301_bandwidth_t;#define MSA311_RANG_MASK 0xFC
/** The accelerometer ranges */
typedef enum {MSA311_RANGE_2_G 0x00, /// /- 2g (default value)MSA311_RANGE_4_G 0x01, /// /- 4gMSA311_RANGE_8_G 0x02, /// /- 8gMSA311_RANGE_16_G 0x03, /// /- 16g
} msa311_range_t;#define MSA311_TAP_DUR_MASK 0xF8
/** Tap duration parameter */
typedef enum {MSA311_TAPDUR_50_MS 0x00, /// 50 millisMSA311_TAPDUR_100_MS 0x01, /// 100 millisMSA311_TAPDUR_150_MS 0x02, /// 150 millisMSA311_TAPDUR_200_MS 0x03, /// 200 millisMSA311_TAPDUR_250_MS 0x04, /// 250 millisMSA311_TAPDUR_375_MS 0x05, /// 375 millisMSA311_TAPDUR_500_MS 0x06, /// 500 millisMSA311_TAPDUR_700_MS 0x07, /// 50 millis700 millis
} msa311_tapduration_t;#define MSA311_TAP_QUITE_MASK 0x7F
typedef enum{MSA311_TAPQUITE_20_MS 0x80,MSA311_TAPQUITE_30_MS 0x00,
}msa311_tapquite_t;#define MSA311_TAP_SHOCK_MASK 0xBF typedef enum{MSA311_TAPSHOCK_50_MS 0x00,MSA311_TAPSHOCK_70_MS 0x40,}msa311_tapshock_t;typedef enum
{MSA311_BOOL_FALSE 0x00, /** false */MSA311_BOOL_TRUE 0x01, /** true */
} msa311_bool_t;typedef enum
{MSA311_INTERRUPT_FREE_FALL 0x00, /** free fall */MSA311_INTERRUPT_ACTIVE 0x02,MSA311_INTERRUPT_D_TAP 0x04,MSA311_INTERRUPT_S_TAP 0x05,MSA311_INTERRUPT_ORIENT 0x06,} msa311_interrupt_map0_t;typedef enum
{MSA311_INTERRUPT_ACTIVE_EN_X 0x00, MSA311_INTERRUPT_ACTIVE_EN_Y 0x01, MSA311_INTERRUPT_ACTIVE_EN_Z 0x02, MSA311_INTERRUPT_D_TAP_EN 0x04,MSA311_INTERRUPT_S_TAP_EN 0x05,MSA311_INTERRUPT_ORIENT_EN 0x06,
} msa311_interrupt_sw0_t;typedef enum
{MSA311_INTERRUPT_FREE_FALLEN 0x03, MSA311_INTERRUPT_NEW_DATA_EN 0x04,
} msa311_interrupt_sw1_t;typedef enum{MSA311_INT_S_TAP_MESSAGE 0x00,MSA311_INT_D_TAP_MESSAGE 0x01,}msa311_int_message_type;typedef enum
{MSA311_FREE_FALL_INT_STATE 0x00,MSA311_ACTIVE_INT_STATE 0x02,MSA311_D_TAP_INT_STATE 0x04,MSA311_S_TAP_INT_STATE 0x05,MSA311_ORIENT_INT_STATE 0x06,}msa311_int_state_t;// golbal function
void Msa311_Init(void);
void handle_int_message(void);
#endif这样设置好msa311的寄存器后当我们敲击的时候int脚会拉低。所以我们只需要连接mm32一个gpio并且配成中断模式就可以捕获对应的敲击事件了。
3、中断接收并处理数据
将msa311的Int脚连接至mm32 的PC8. pc8适配中断代码如下
void BOARD_InitPins(void)
{/* 调用GPIO的HAL库对象结构体声明GPIO对象 */GPIO_Init_Type gpio_init;//pc 8 for msa311 inter detectuint32_t prioritygroup 0;RCC_EnableAPB2Periphs(RCC_APB2_PERIPH_SYSCFG, true);/* 设置GPIO的模式 */gpio_init.PinMode GPIO_PinMode_In_PullUp;gpio_init.Speed GPIO_Speed_50MHz;/* 选择引脚初始化 */gpio_init.Pins GPIO_PIN_8;GPIO_Init(GPIOC, gpio_init);/* 将外部中断线设置为复用模式 */SYSCFG_SetExtIntMux(SYSCFG_EXTIPort_GPIOC, SYSCFG_EXTILine_8);/* 设置外部中断线的触发方式 */EXTI_SetTriggerIn(EXTI, EXTI_LINE_8, EXTI_TriggerIn_FallingEdge); /* 使能外部中断线 */EXTI_EnableLineInterrupt(EXTI, EXTI_LINE_8, true);prioritygroup NVIC_GetPriorityGrouping();NVIC_SetPriority(SysTick_IRQn, NVIC_EncodePriority(prioritygroup, 0, 2));/* 使能对应的外部中断 */NVIC_EnableIRQ(EXTI9_5_IRQn);
}对应的中断处理函数
void EXTI9_5_IRQHandler(void)
{uint32_t flags EXTI_GetLineStatus(EXTI);if ( 0u ! ( flags EXTI_LINE_8 ) ) /* Interrupts. */{handle_int_message();}EXTI_ClearLineStatus(EXTI, flags);
}中断处理函数将事件处理交给handle_int_message()函数此函数在msa311.c中定义。
void handle_int_message(void)
{uint8_t state;bool bRet;bRet Msa311_ReadReg(MSA311_REG_MOTIONINT,state);if (bRet false){perror(Msa311_GetInterrupt1Enable read error\n);return;}if (state (1 MSA311_S_TAP_INT_STATE)){printf(this is s_tap \r\n);}else if (state (1 MSA311_D_TAP_INT_STATE)){printf(this is d_tap \r\n);}
}在中断处理函数中我们做个一件事就是去读一下0x09寄存器的值当第四位为1的时候表示双击第五位为1的时候表示单击。
4、现象 单击模块时候打印 this is s_tap 双击模块时候打印 this is d_tap
5、代码
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