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在使用DRV8848驱动直流电机时遇到通道输出异常，只有一路通道响应。问题根源在于芯片处于并联模式。为实现两对通道独立控制，需要设置芯片退出并联模式，具体操作包括将AIN1和AIN2置高或低电平，并在SLEEP引脚上进行0到1的翻转。通过STM32的GPIO控制代码实现这一过程。
在使用DRV8848做直流电机的驱动时，发现两对通道只能有一路通道控制。
DRV8848有并联模式，两对通道可以并联输出。要使两对通道分别输出，需要设置芯片退出并联模式。
The two drivers can be used in parallel to deliver twice the current to a single motor. To enter parallel mode,
AIN1 and AIN2 must be left Hi-Z during power-up or when exiting sleep mode (nSLEEP toggling from 0 to 1).
BIN1 and BIN2 are used to control the drivers. Tie AISEN and BISEN to a single sense resistor if current control
is desired. To exit parallel mode, AIN1 and AIN2 must be driven high or low and the device must be powered-up
or exit sleep mode.
要退出并联模式，需要将AIN1 AIN2同时置高电平或者低电平，并且将SLEEP引脚0-1
STM32使用代码
GPI
DRV8848有并联模式，两对通道可以并联输出。要使两对通道分别输出，需要设置芯片退出并联模式。
The two drivers can be used in parallel to deliver twice the current to a single motor. To enter parallel mode,
AIN1 and AIN2 must be left Hi-Z during power-up or when exiting sleep mode (nSLEEP toggling from 0 to 1).
BIN1 and BIN2 are used to control the drivers. Tie AISEN and BISEN to a single sense resistor if current control
is desired. To exit parallel mode, AIN1 and AIN2 must be driven high or low and the device must be powered-up
or exit sleep mode.
要退出并联模式，需要将AIN1 AIN2同时置高电平或者低电平，并且将SLEEP引脚0-1
STM32使用代码
GPI
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