Merge branch 'develop',rebase to next generation
This commit is contained in:
commit
08440ce116
3
Makefile
3
Makefile
|
@ -40,6 +40,7 @@ C_SOURCES = \
|
|||
HAL_N_Middlewares/Src/main.c \
|
||||
HAL_N_Middlewares/Src/gpio.c \
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||||
HAL_N_Middlewares/Src/i2c.c \
|
||||
HAL_N_Middlewares/Src/i2c.c \
|
||||
HAL_N_Middlewares/Src/adc.c \
|
||||
HAL_N_Middlewares/Src/can.c \
|
||||
HAL_N_Middlewares/Src/dma.c \
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||||
|
@ -67,6 +68,8 @@ HAL_N_Middlewares/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash_ramfunc.c
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|||
HAL_N_Middlewares/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.c \
|
||||
HAL_N_Middlewares/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2c_ex.c \
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||||
HAL_N_Middlewares/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2c.c \
|
||||
HAL_N_Middlewares/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2c_ex.c \
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||||
HAL_N_Middlewares/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2c.c \
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||||
HAL_N_Middlewares/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma_ex.c \
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HAL_N_Middlewares/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.c \
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HAL_N_Middlewares/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pwr.c \
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|
|
@ -9,6 +9,9 @@ ADC1.master=1
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CAD.formats=
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CAD.pinconfig=
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CAD.provider=
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CAD.formats=
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CAD.pinconfig=
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CAD.provider=
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CAN1.BS1=CAN_BS1_10TQ
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||||
CAN1.BS2=CAN_BS2_3TQ
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CAN1.CalculateBaudRate=1000000
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||||
|
@ -21,6 +24,19 @@ CAN2.CalculateBaudRate=1000000
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|||
CAN2.CalculateTimeQuantum=71.42857142857143
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||||
CAN2.IPParameters=CalculateTimeQuantum,BS1,BS2,Prescaler,CalculateBaudRate
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||||
CAN2.Prescaler=3
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||||
Dma.MEMTOMEM.5.Direction=DMA_MEMORY_TO_MEMORY
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Dma.MEMTOMEM.5.FIFOMode=DMA_FIFOMODE_ENABLE
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Dma.MEMTOMEM.5.FIFOThreshold=DMA_FIFO_THRESHOLD_FULL
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Dma.MEMTOMEM.5.Instance=DMA2_Stream3
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Dma.MEMTOMEM.5.MemBurst=DMA_MBURST_SINGLE
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Dma.MEMTOMEM.5.MemDataAlignment=DMA_MDATAALIGN_BYTE
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Dma.MEMTOMEM.5.MemInc=DMA_MINC_ENABLE
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Dma.MEMTOMEM.5.Mode=DMA_NORMAL
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Dma.MEMTOMEM.5.PeriphBurst=DMA_PBURST_SINGLE
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Dma.MEMTOMEM.5.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
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Dma.MEMTOMEM.5.PeriphInc=DMA_PINC_ENABLE
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Dma.MEMTOMEM.5.Priority=DMA_PRIORITY_HIGH
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Dma.MEMTOMEM.5.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode,FIFOThreshold,MemBurst,PeriphBurst
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Dma.ADC1.12.Direction=DMA_PERIPH_TO_MEMORY
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Dma.ADC1.12.FIFOMode=DMA_FIFOMODE_DISABLE
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Dma.ADC1.12.Instance=DMA2_Stream4
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||||
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@ -84,6 +100,11 @@ Dma.SPI1_RX.4.FIFOThreshold=DMA_FIFO_THRESHOLD_FULL
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Dma.SPI1_RX.4.Instance=DMA2_Stream0
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Dma.SPI1_RX.4.MemBurst=DMA_MBURST_SINGLE
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Dma.SPI1_RX.4.MemDataAlignment=DMA_MDATAALIGN_BYTE
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Dma.Request5=MEMTOMEM
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Dma.Request6=SPI1_RX
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Dma.Request7=SPI1_TX
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Dma.Request8=SPI2_RX
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||||
Dma.Request9=SPI2_TX
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Dma.SPI1_RX.4.MemInc=DMA_MINC_ENABLE
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||||
Dma.SPI1_RX.4.Mode=DMA_NORMAL
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||||
Dma.SPI1_RX.4.PeriphBurst=DMA_PBURST_SINGLE
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@ -93,8 +114,60 @@ Dma.SPI1_RX.4.Priority=DMA_PRIORITY_LOW
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Dma.SPI1_RX.4.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode,FIFOThreshold,MemBurst,PeriphBurst
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||||
Dma.SPI1_TX.5.Direction=DMA_MEMORY_TO_PERIPH
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||||
Dma.SPI1_TX.5.FIFOMode=DMA_FIFOMODE_ENABLE
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||||
Dma.SPI1_TX.5.FIFOThreshold=DMA_FIFO_THRESHOLD_FULL
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Dma.SPI1_TX.5.FIFOThreshold=10
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||||
Dma.SPI1_RX.6.Direction=DMA_PERIPH_TO_MEMORY
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||||
Dma.SPI1_RX.6.FIFOMode=DMA_FIFOMODE_ENABLE
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||||
Dma.SPI1_RX.6.FIFOThreshold=DMA_FIFO_THRESHOLD_FULL
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||||
Dma.SPI1_RX.6.Instance=DMA2_Stream0
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||||
Dma.SPI1_RX.6.MemBurst=DMA_MBURST_SINGLE
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||||
Dma.SPI1_RX.6.MemDataAlignment=DMA_MDATAALIGN_BYTE
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||||
Dma.SPI1_RX.6.MemInc=DMA_MINC_ENABLE
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||||
Dma.SPI1_RX.6.Mode=DMA_NORMAL
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||||
Dma.SPI1_RX.6.PeriphBurst=DMA_PBURST_SINGLE
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||||
Dma.SPI1_RX.6.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
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||||
Dma.SPI1_RX.6.PeriphInc=DMA_PINC_DISABLE
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||||
Dma.SPI1_RX.6.Priority=DMA_PRIORITY_LOW
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||||
Dma.SPI1_RX.6.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode,FIFOThreshold,MemBurst,PeriphBurst
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||||
Dma.SPI1_TX.7.Direction=DMA_MEMORY_TO_PERIPH
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||||
Dma.SPI1_TX.7.FIFOMode=DMA_FIFOMODE_ENABLE
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||||
Dma.SPI1_TX.7.FIFOThreshold=DMA_FIFO_THRESHOLD_FULL
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||||
Dma.SPI1_TX.7.Instance=DMA2_StreamDMA_FIFO_THRESHOLD_FULL
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||||
Dma.SPI1_TX.5.Instance=DMA2_Stream3
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||||
Dma.SPI1_TX.7.MemBurst=DMA_MBURST_SINGLE
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||||
Dma.SPI1_TX.7.MemDataAlignment=DMA_MDATAALIGN_BYTE
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||||
Dma.SPI1_TX.7.MemInc=DMA_MINC_ENABLE
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||||
Dma.SPI1_TX.7.Mode=DMA_NORMAL
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||||
Dma.SPI1_TX.7.PeriphBurst=DMA_PBURST_SINGLE
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||||
Dma.SPI1_TX.7.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
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||||
Dma.SPI1_TX.7.PeriphInc=DMA_PINC_DISABLE
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||||
Dma.SPI1_TX.7.Priority=DMA_PRIORITY_LOW
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||||
Dma.SPI1_TX.7.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode,FIFOThreshold,MemBurst,PeriphBurst
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||||
Dma.SPI2_RX.8.Direction=DMA_PERIPH_TO_MEMORY
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||||
Dma.SPI2_RX.8.FIFOMode=DMA_FIFOMODE_ENABLE
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||||
Dma.SPI2_RX.8.FIFOThreshold=DMA_FIFO_THRESHOLD_FULL
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||||
Dma.SPI2_RX.8.Instance=DMA1_Stream3
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Dma.SPI2_RX.8.MemBurst=DMA_MBURST_SINGLE
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||||
Dma.SPI2_RX.8.MemDataAlignment=DMA_MDATAALIGN_BYTE
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||||
Dma.SPI2_RX.8.MemInc=DMA_MINC_ENABLE
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Dma.SPI2_RX.8.Mode=DMA_NORMAL
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||||
Dma.SPI2_RX.8.PeriphBurst=DMA_PBURST_SINGLE
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||||
Dma.SPI2_RX.8.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
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Dma.SPI2_RX.8.PeriphInc=DMA_PINC_DISABLE
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Dma.SPI2_RX.8.Priority=DMA_PRIORITY_LOW
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Dma.SPI2_RX.8.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode,FIFOThreshold,MemBurst,PeriphBurst
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||||
Dma.SPI2_TX.9.Direction=DMA_MEMORY_TO_PERIPH
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Dma.SPI2_TX.9.FIFOMode=DMA_FIFOMODE_ENABLE
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Dma.SPI2_TX.9.FIFOThreshold=DMA_FIFO_THRESHOLD_FULL
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Dma.SPI2_TX.9.Instance=DMA1_Stream4
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Dma.SPI2_TX.9.MemBurst=DMA_MBURST_SINGLE
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Dma.SPI2_TX.9.MemDataAlignment=DMA_MDATAALIGN_BYTE
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||||
Dma.SPI2_TX.9.MemInc=DMA_MINC_ENABLE
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Dma.SPI2_TX.9.Mode=DMA_NORMAL
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Dma.SPI2_TX.9.PeriphBurst=DMA_PBURST_SINGLE
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||||
Dma.SPI2_TX.9.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
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Dma.SPI2_TX.9.PeriphInc=DMA_PINC_DISABLE
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Dma.SPI2_TX.9.Priority=DMA_PRIORITY_LOW
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Dma.SPI2_TX.9.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode,FIFOThreshold,MemBurst,PeriphBurst
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Dma.SPI1_TX.5.MemBurst=DMA_MBURST_SINGLE
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Dma.SPI1_TX.5.MemDataAlignment=DMA_MDATAALIGN_BYTE
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Dma.SPI1_TX.5.MemInc=DMA_MINC_ENABLE
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@ -192,6 +265,10 @@ I2C2.I2C_Mode=I2C_Fast
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I2C2.IPParameters=I2C_Mode
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I2C3.I2C_Mode=I2C_Fast
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I2C3.IPParameters=I2C_Mode
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I2C2.I2C_Mode=I2C_Fast
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I2C2.IPParameters=I2C_Mode
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I2C3.I2C_Mode=I2C_Fast
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I2C3.IPParameters=I2C_Mode
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KeepUserPlacement=false
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Mcu.CPN=STM32F407IGH6
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Mcu.Family=STM32F4
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@ -236,6 +313,8 @@ Mcu.Pin16=PD1
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Mcu.Pin17=PA11
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Mcu.Pin18=PF0
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Mcu.Pin19=PA9
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Mcu.Pin18=PF0
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Mcu.Pin19=PA9
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Mcu.Pin2=PG14
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Mcu.Pin20=PC9
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Mcu.Pin21=PA8
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@ -247,6 +326,16 @@ Mcu.Pin26=PG6
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Mcu.Pin27=PH12
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Mcu.Pin28=PG3
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Mcu.Pin29=PH11
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Mcu.Pin20=PC9
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Mcu.Pin21=PA8
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Mcu.Pin22=PH0-OSC_IN
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Mcu.Pin23=PH1-OSC_OUT
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Mcu.Pin24=PF1
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Mcu.Pin25=PC6
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Mcu.Pin26=PG6
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Mcu.Pin27=PH12
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Mcu.Pin28=PG3
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Mcu.Pin29=PH11
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Mcu.Pin3=PB4
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Mcu.Pin30=PH10
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Mcu.Pin31=PD14
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@ -323,6 +412,8 @@ NVIC.PendSV_IRQn=true\:15\:0\:false\:false\:false\:true\:false\:false\:false
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NVIC.PriorityGroup=NVIC_PRIORITYGROUP_4
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NVIC.SPI1_IRQn=true\:5\:0\:false\:false\:true\:true\:true\:true\:true
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NVIC.SPI2_IRQn=true\:5\:0\:false\:false\:true\:true\:true\:true\:true
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NVIC.SPI1_IRQn=true\:5\:0\:false\:false\:true\:true\:true\:true\:true
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NVIC.SPI2_IRQn=true\:5\:0\:false\:false\:true\:true\:true\:true\:true
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NVIC.SVCall_IRQn=true\:0\:0\:false\:false\:false\:false\:false\:false\:false
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NVIC.SavedPendsvIrqHandlerGenerated=true
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NVIC.SavedSvcallIrqHandlerGenerated=true
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|
|
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@ -0,0 +1,122 @@
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#include "servo_motor.h"
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extern TIM_HandleTypeDef htim1;
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/*第二版*/
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static ServoInstance *servo_motor[SERVO_MOTOR_CNT] = {NULL};
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static int16_t compare_value[SERVO_MOTOR_CNT]={0};
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||||
static uint8_t servo_idx = 0; // register servo_idx,是该文件的全局舵机索引,在注册时使用
|
||||
|
||||
// 通过此函数注册一个舵机
|
||||
ServoInstance *ServoInit(Servo_Init_Config_s *Servo_Init_Config)
|
||||
{
|
||||
servo_motor[servo_idx] = (ServoInstance *)malloc(sizeof(ServoInstance));
|
||||
memset(servo_motor[servo_idx], 0, sizeof(ServoInstance));
|
||||
servo_motor[servo_idx]->Servo_type = Servo_Init_Config->Servo_type;
|
||||
servo_motor[servo_idx]->htim = Servo_Init_Config->htim;
|
||||
servo_motor[servo_idx]->Channel = Servo_Init_Config->Channel;
|
||||
HAL_TIM_Base_Start(Servo_Init_Config->htim);
|
||||
HAL_TIM_PWM_Start(Servo_Init_Config->htim, Servo_Init_Config->Channel);
|
||||
return servo_motor[servo_idx++];
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 写入自由角度数值
|
||||
*
|
||||
* @param Servo_Motor 注册的舵机实例
|
||||
* @param S_angle 改变自由模式设定的角度
|
||||
*/
|
||||
void Servo_Motor_FreeAngle_Set(ServoInstance *Servo_Motor, int16_t S_angle)
|
||||
{
|
||||
switch (Servo_Motor->Servo_type)
|
||||
{
|
||||
case Servo180:
|
||||
if (S_angle > 180)
|
||||
S_angle = 180;
|
||||
break;
|
||||
case Servo270:
|
||||
if (S_angle > 270)
|
||||
S_angle = 270;
|
||||
break;
|
||||
case Servo360:
|
||||
if (S_angle > 100)
|
||||
S_angle = 100;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
if (S_angle < 0)
|
||||
S_angle = 0;
|
||||
Servo_Motor->Servo_Angle.free_angle = S_angle;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 写入起始,终止角度数值
|
||||
*
|
||||
* @param Servo_Motor 注册的舵机实例
|
||||
* @param Start_angle 起始角度
|
||||
* @param Final_angle 终止角度
|
||||
*/
|
||||
void Servo_Motor_StartSTOP_Angle_Set(ServoInstance *Servo_Motor, int16_t Start_angle, int16_t Final_angle)
|
||||
{
|
||||
Servo_Motor->Servo_Angle.Init_angle = Start_angle;
|
||||
Servo_Motor->Servo_Angle.Final_angle = Final_angle;
|
||||
}
|
||||
/**
|
||||
* @brief 舵机模式选择
|
||||
*
|
||||
* @param Servo_Motor 注册的舵机实例
|
||||
* @param mode 需要选择的模式
|
||||
*/
|
||||
void Servo_Motor_Type_Select(ServoInstance *Servo_Motor,int16_t mode)
|
||||
{
|
||||
Servo_Motor->Servo_Angle_Type = mode;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* @brief 舵机输出控制
|
||||
*
|
||||
*/
|
||||
void Servo_Motor_Control()
|
||||
{
|
||||
static ServoInstance *Servo_Motor;
|
||||
static Servo_Type_e Servo_type;
|
||||
|
||||
for (size_t i = 0; i < servo_idx; i++)
|
||||
{
|
||||
if (servo_motor[i])
|
||||
{
|
||||
Servo_Motor = servo_motor[i];
|
||||
Servo_type = Servo_Motor->Servo_type;
|
||||
|
||||
switch (Servo_type)
|
||||
{
|
||||
case Servo180:
|
||||
if (Servo_Motor->Servo_type == Start_mode)
|
||||
compare_value[i] = 0.5 * 20000 / 20 + Servo_Motor->Servo_Angle.Init_angle * 20000 / 20 / 90;
|
||||
if (Servo_Motor->Servo_type == Final_mode)
|
||||
compare_value[i] = 0.5 * 20000 / 20 + Servo_Motor->Servo_Angle.Final_angle * 20000 / 20 / 90;
|
||||
if (Servo_Motor->Servo_type == Free_Angle_mode)
|
||||
compare_value[i] = 0.5 * 20000 / 20 + Servo_Motor->Servo_Angle.free_angle * 20000 / 20 / 90;
|
||||
__HAL_TIM_SET_COMPARE(Servo_Motor->htim, Servo_Motor->Channel, compare_value[i]);
|
||||
break;
|
||||
case Servo270:
|
||||
if (Servo_Motor->Servo_type == Start_mode)
|
||||
compare_value[i] = 0.5 * 20000 / 20 + Servo_Motor->Servo_Angle.Init_angle * 20000 / 20 / 135;
|
||||
if (Servo_Motor->Servo_type == Final_mode)
|
||||
compare_value[i] = 0.5 * 20000 / 20 + Servo_Motor->Servo_Angle.Final_angle * 20000 / 20 / 135;
|
||||
if (Servo_Motor->Servo_type == Free_Angle_mode)
|
||||
compare_value[i] = 0.5 * 20000 / 20 + Servo_Motor->Servo_Angle.free_angle * 20000 / 20 / 135;
|
||||
__HAL_TIM_SET_COMPARE(Servo_Motor->htim, Servo_Motor->Channel, compare_value[i]);
|
||||
break;
|
||||
case Servo360:
|
||||
/*500-2500的占空比 500-1500对应正向转速 1500-2500对于反向转速*/
|
||||
compare_value[i] = 500 + 20 * Servo_Motor->Servo_Angle.servo360speed;
|
||||
__HAL_TIM_SET_COMPARE(Servo_Motor->htim, Servo_Motor->Channel, compare_value[i]);
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
|
@ -0,0 +1,90 @@
|
|||
/**
|
||||
* @file servo_motor.h
|
||||
* @author panrui
|
||||
* @brief 舵机控制头文件
|
||||
* @version 0.1
|
||||
* @date 2022-12-12
|
||||
*
|
||||
* @copyright Copyright (c) 2022
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef SERVO_MOTOR_H
|
||||
#define SERVO_MOTOR_H
|
||||
|
||||
#include "main.h"
|
||||
#include "tim.h"
|
||||
#include <stdint-gcc.h>
|
||||
|
||||
#define SERVO_MOTOR_CNT 7
|
||||
|
||||
/*各种舵机类型*/
|
||||
typedef enum
|
||||
{
|
||||
Servo180 = 0,
|
||||
Servo270 = 1,
|
||||
Servo360 = 2,
|
||||
} Servo_Type_e;
|
||||
|
||||
/*舵机模式选择*/
|
||||
typedef enum
|
||||
{
|
||||
Free_Angle_mode, // 任意角度模式
|
||||
Start_mode, // 起始角度模式
|
||||
Final_mode, // 终止角度模式
|
||||
} Servo_Angle_Type_e;
|
||||
/*角度设置*/
|
||||
typedef struct
|
||||
{
|
||||
/*起止角度模式设置值*/
|
||||
int16_t Init_angle;
|
||||
int16_t Final_angle;
|
||||
/*任意角度模式设置值*/
|
||||
int16_t free_angle;
|
||||
/*下述值仅仅适用于360°舵机
|
||||
*设定值为0-100 为速度值百分比
|
||||
*0-50为正转 速度由快到慢
|
||||
*51-100为反转 速度由慢到快
|
||||
*/
|
||||
int16_t servo360speed;
|
||||
} Servo_Angle_s;
|
||||
|
||||
/* 用于初始化不同舵机的结构体,各类舵机通用 */
|
||||
typedef struct
|
||||
{
|
||||
Servo_Type_e Servo_type;
|
||||
Servo_Angle_Type_e Servo_Angle_Type;
|
||||
// 使用的定时器类型及通道
|
||||
TIM_HandleTypeDef *htim;
|
||||
/*Channel值设定
|
||||
*TIM_CHANNEL_1
|
||||
*TIM_CHANNEL_2
|
||||
*TIM_CHANNEL_3
|
||||
*TIM_CHANNEL_4
|
||||
*TIM_CHANNEL_ALL
|
||||
*/
|
||||
uint32_t Channel;
|
||||
|
||||
} Servo_Init_Config_s;
|
||||
typedef struct
|
||||
{
|
||||
Servo_Angle_Type_e Servo_Angle_Type;
|
||||
Servo_Angle_s Servo_Angle;
|
||||
Servo_Type_e Servo_type;
|
||||
// 使用的定时器类型及通道
|
||||
TIM_HandleTypeDef *htim;
|
||||
/*Channel值设定
|
||||
*TIM_CHANNEL_1
|
||||
*TIM_CHANNEL_2
|
||||
*TIM_CHANNEL_3
|
||||
*TIM_CHANNEL_4
|
||||
*TIM_CHANNEL_ALL
|
||||
*/
|
||||
uint32_t Channel;
|
||||
} ServoInstance;
|
||||
|
||||
ServoInstance *ServoInit(Servo_Init_Config_s *Servo_Init_Config);
|
||||
void Servo_Motor_FreeAngle_Set(ServoInstance *Servo_Motor, int16_t S_angle);
|
||||
void Servo_Motor_Type_Select(ServoInstance *Servo_Motor,int16_t mode);
|
||||
void Servo_Motor_Control();
|
||||
#endif // SERVO_MOTOR_H
|
|
@ -0,0 +1,66 @@
|
|||
##舵机的使用
|
||||
<p align='left' >panrui@hnu.edu.cn</p>
|
||||
### 舵机基础知识
|
||||
已最常见的SG90舵机为例,SG90舵机要求工作在频率为50HZ——周期为20ms的PWM波,且对应信号的高低电平在0.5ms - 2.5ms之间,对应的舵机转动角度如下表所示(当然也可以按照这个线性的对应关系去达到转动自己想要的角度,如想要转动60°,则高电平脉宽为大概为1.2ms,具体能不能转到特定的角度还和舵机的精度有关)
|
||||
|
||||
>0.5ms-------------0度; 2.5%
|
||||
>1.0ms------------45度; 5.0%
|
||||
>1.5ms------------90度; 7.5%
|
||||
>2.0ms-----------135度; 10.0%
|
||||
>2.5ms-----------180度; 12.5%
|
||||
|
||||
根据`<font color=black size=3>Tout = (PSC+1)* (ARR+1)/Tclk</font>`公式
|
||||
则我们需要产生50Hz的PWM波,则预分频的系数为 Prescaler = 168-1,自动重装载值 Counter Period = 20000-1,此时定时器产生的频率为 168Mhz/168/20000 = 50Hz。 当然这个值也可以自己设置,只要满足产生的频率为50Hz即可.
|
||||
`__HAL_TIM_SET_COMPARE(htim, Channel, compare_value);`
|
||||
这是设置占空比的函数
|
||||
eg:当初始占空比为1200/20000则为6%,根据20*6%=1.2ms (1.2-0.5)/(2.5-0.5)*180=63° 故舵机会转动63°
|
||||
为了方便通过上述eg我们将所需要的角度与PWM计数值对应关系封装成函数。需要在初始化的時候输入我们所需要的角度和相关定时器参数即可。这样我们就可以设置SG90为参数范围内(0~180°)任意度数。
|
||||
|
||||
---
|
||||
|
||||
## 如何注册一个舵机实例
|
||||
!!!
|
||||
|
||||
**注意!由于舵机为开环控制,无论选择舵机为何种类型,舵机都能够正常运行,但是运行的角度可能会与设定不同,请务必正确选择舵机型号!且最多添加7个舵机!**
|
||||
我们可以像这样注册一个舵机实例
|
||||
```c
|
||||
|
||||
static ServoInstance *leftservomoto;
|
||||
//初始化参数
|
||||
Servo_Init_Config_s config={
|
||||
//舵机安装选择的定时器及通道
|
||||
//C板有常用的7路PWM输出:TIM1-1,2,3,4 TIM8-1,2,3
|
||||
.htim=&htim1,
|
||||
.Channel=TIM_CHANNEL_1,
|
||||
//舵机的初始化模式和类型
|
||||
.Servo_Angle_Type=Start_mode,
|
||||
.Servo_type=Servo180,
|
||||
};
|
||||
// 设置好参数后进行初始化并保留返回的指针
|
||||
leftservomoto = ServoInit(&config);
|
||||
```
|
||||
>要控制一个舵机 我们提供了以下三个接口
|
||||
```c
|
||||
//自由模式下,写入自由角度数值
|
||||
void Servo_Motor_FreeAngle_Set(ServoInstance *Servo_Motor, int16_t S_angle);
|
||||
//起止模式下,写入起始,终止角度数值(防止反复写入起始和终止角度)
|
||||
void Servo_Motor_StartSTOP_Angle_Set(ServoInstance *Servo_Motor, int16_t Start_angle, int16_t Final_angle);
|
||||
/*
|
||||
Free_Angle_mode, // 任意角度模式
|
||||
Start_mode, // 起始角度模式
|
||||
Final_mode, // 终止角度模式
|
||||
*/
|
||||
void Servo_Motor_Type_Select(ServoInstance *Servo_Motor,int16_t mode);
|
||||
//比如我们要使用舵机,并更改一个舵机的模式
|
||||
void ServoTask()
|
||||
{
|
||||
//更改leftservomoto为Free_Angle_mode模式
|
||||
Servo_Motor_Type_Select(leftservomoto,Free_Angle_mode);
|
||||
//设置转到0角度
|
||||
Servo_Motor_FreeAngle_Set(leftservomoto, 0);
|
||||
//调用函数,控制电机
|
||||
Servo_Motor_Control();
|
||||
}
|
||||
|
||||
|
||||
```
|
Loading…
Reference in New Issue