这个是DATASHEET上的原理图,我想问的是P1和P2的数据发送怎么控制?这个芯片只有I2C和HDQ两种通信方式,是通过他们控制的吗?
Mingmo Zhu:
是的,LED/COMM Configuration Bits [Bits 0, 1, 2 ] 如果为3 = External LEDs with I2C 控制, 如果为4 = External LEDs with HDQ 控制.
Upon detecting A/D value representing 2.5 V on the VEN pin, External LED mode will transmit the RSOC into anSN74HC164 (for 2~8 LEDs) or two SN74HC164 devices (for 9~16 LEDs) using a bit-banged approach with RC2 (P1)as Clock and RC0 (P2) as Data.
aaron aaron1:
回复 Mingmo Zhu:
谢谢