S3C6410 +WINCE6.0的OV2640开发问题
I2C_IST[0xd305e400, 0]: ACK NOT received
I2C_IST[0xd305e400, 1]: ACK NOT received
I2C_IST[0xd305e400, 0]: ACK NOT received
I2C_IST[0xd305e400, 1]: ACK NOT received
Read OV2640_PID: 0x0 failed!
I2C_IST[0xd305e400, 0]: ACK NOT received
I2C_IST[0xd305e400, 1]: ACK NOT received
I2C_IST[0xd305e400, 0]: ACK NOT received
I2C_IST[0xd305e400, 1]: ACK NOT received
Read OV2640_VER_REG: 0xff failed!
I2C_IST[0xd305e400, 0]: ACK NOT received
I2C_IST[0xd305e400, 1]: ACK NOT received
I2C_IST[0xd305e400, 2]: ACK NOT received
I2C_IST[0xd305e400, 0]: ACK NOT received
I2C_IST[0xd305e400, 1]: ACK NOT received
I2C_IST[0xd305e400, 2]: ACK NOT received
I2C_IST[0xd305e400, 0]: ACK NOT received
I2C_IST[0xd305e400, 1]: ACK NOT received
I2C_IST[0xd305e400, 2]: ACK NOT received
I2C_IST[0xd305e400, 0]: ACK NOT received
I2C_IST[0xd305e400, 1]: ACK NOT received
I2C_IST[0xd305e400, 2]: ACK NOT received
I2C_IST[0xd305e400, 0]: ACK NOT received
[最优解释]
先验证下IIC通信是否正常？
然后看看设备地址是不是正确？
看你调试信息，基本是这两个问题
[其他解释]
除了上面说的，还有可能你SDA数据线没有上啦电阻。若是买的正常能用的开发板，那应该不是硬件问题，应该是软件问题。
[其他解释]
除了上面说的，还有可能你SDA数据线没有上啦电阻。若是买的正常能用的开发板，那应该不是硬件问题，应该是软件问题。
[其他解释]
谢谢各位
[其他解释]
设备地址是2641，是PDF上给的
