目前是看到7.3.2.3 LED PWM Control
用SPI模式,MCU连三路PWM,可单独控制。
如果按I2C模式,原理图上三路PWM输入端口都接地,用I2C指令能否PWM方式单独控制每路的PWM?
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Hi
看7.322: LED brightness has 3-bit logarithmic control. The control bits are in the pwm_brightness (04H) register. The 3-bit value defines a multiplier for the 12-bit PWM value obtained from the memory according to Table 1.
从描述看是可以通过寄存器来设置的。