N76E003 I2C从机模式时主机连续写数据不应答

只看该作者 · 2022-8-24 10:50

N76E003 在I2C从机模式时主机连续写数据时写到第二个数据时从机就不应答，导致通讯失败，是怎么回事？搜索

复制

I2C从机初始化代码如下：

//;配置I2C--------------------------------------------------
P13_Quasi_Mode;                      //set SCL (P13) is Quasi mode
P14_Quasi_Mode;                      //set SDA (P14) is Quasi mode
SDA = 1;                               //set SDA and SCL pins high
SCL = 1;
set_P0SR_6;                            //set SCL (P06) is  Schmitt triggered input select.
set_EI2C;                            //enable I2C interrupt by setting IE1 bit 0
//set_EA;
I2ADDR = SLAVE_ADDRESS;                         //define own slave address
set_I2CEN;                            //enable I2C circuit
set_AA;