Part Number:DRV8452
1、将ENABLE、nSLEEP引脚设置为输出模式,并在初始化时将ENABLE和nSLEEP设置为高电平;将nFAULT引脚设置为输入模式,并在初始化时将nFAULT设置为高电平。并将VREF的参考电压设置为1.866V(通过微控制器的DAC功能给的)。
2、将DIR引脚设置为输出模式,并在初始化时将DIR设置为1;
3、初始化时,通过SPI接口对DRV8452的以下寄存器进行了配置:
SPI_CTRL1:0x8F
SPI_CTRL2:0x05
SPI_CTRL3:0xB8
SPI_CTRL9:0x11
SPI_CTRL10:0xF0
SPI_CTRL11:0xF0
SPI_CTRL12:0xA0
SPI_CTRL13:0x10
SPI_SILENTSTEP_CTRL1:0x01
SPI_SILENTSTEP_CTRL2:0x20
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