K60的I2C作为从机，总是进不了中断？求思路

只看该作者 · 2013-1-22 21:25

硬件反复检查过，没问题，作为主机可以发出来.

0. set pin function is I2C

1. Write: Control Register 2
• to enable or disable general call
• to select 10-bit or 7-bit addressing mode

2. Write: Address Register 1 to set the slave address
3. Write: Control Register 1 to enable the I2C module and interrupts
4. Initialize RAM variables (IICEN = 1 and IICIE = 1) for transmit data
5. Initialize RAM variables used to achieve the routine shown in the following figure

//------------------------代码----------------------------------

_i2c_init_pin_mux(CHANNEL_1);

I2C_C2(CHANNEL_1) = 0x0; //general call disabled, 7-bit address

I2C_A1(CHANNEL_1) = addr << 1;

I2C_C1(CHANNEL_1) = I2C_C1_IICEN_MASK | I2C_C1_IICIE_MASK | 0;

//---------------------------------------------------------------

就是进不了中断

只看该作者 · 2013-1-23 20:44

地线没有接，时钟模块未使能，还有NVIC的中断没有开

只看该作者 · 2013-1-23 21:05

x的，freescale的datasheet写的是个屁呀，从8位机上来的完全挂了。arm的内核完全不写，nvic完全不写，我他x的怎么知道I2C是外设，I2c的中断挂在nvic上，快2000页的datasheet，写的个屁呀，我要发泄，发泄，我他x的怎么知道I2C当外设还要给时钟，8位机都做好了，管个屁的时钟，我恨呀--------------------------