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[hi3518] 海思3518EV300+SC2235 I2C无法通信

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发表于 2019-9-4 16:09:56 | 显示全部楼层 |阅读模式
sensor的地址是0x60,我用i2c读取时timeout,然后测试各种地址都是timeout,求热心网友帮忙看一下

~ # i2cdump -f -y 1 0x60
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
00: hibvt-i2c 12061000.i2c: wait idle timeout, RIS: 0x10, SR: 0xa0000
XX hibvt-i2c 12061000.i2c: wait idle timeout, RIS: 0x10, SR: 0xa0000
XX hibvt-i2c 12061000.i2c: wait idle timeout, RIS: 0x10, SR: 0xa0000
XX hibvt-i2c 12061000.i2c: wait idle timeout, RIS: 0x10, SR: 0xa0000
XX hibvt-i2c 12061000.i2c: wait idle timeout, RIS: 0x10, SR: 0xa0000
XX hibvt-i2c 12061000.i2c: wait idle timeout, RIS: 0x10, SR: 0xa0000
XX hibvt-i2c 12061000.i2c: wait idle timeout, RIS: 0x10, SR: 0xa0000
XX hibvt-i2c 12061000.i2c: wait idle timeout, RIS: 0x10, SR: 0xa0000
XX hibvt-i2c 12061000.i2c: wait idle timeout, RIS: 0x10, SR: 0xa0000
XX hibvt-i2c 12061000.i2c: wait idle timeout, RIS: 0x10, SR: 0xa0000
XX hibvt-i2c 12061000.i2c: wait idle timeout, RIS: 0x10, SR: 0xa0000
XX hibvt-i2c 12061000.i2c: wait idle timeout, RIS: 0x10, SR: 0xa0000
^VXX hibvt-i2c 12061000.i2c: wait idle timeout, RIS: 0x10, SR: 0xa0000
XX hibvt-i2c 12061000.i2c: wait idle timeout, RIS: 0x10, SR: 0xa0000
XX hibvt-i2c 12061000.i2c: wait idle timeout, RIS: 0x10, SR: 0xa0000
XX hibvt-i2c 12061000.i2c: wait idle timeout, RIS: 0x10, SR: 0xa0000
XX    XXXXXXXXXXXXXXXX

发表于 2019-10-10 10:44:41 | 显示全部楼层
我问题也类似,请问怎么解决的
发表于 2019-10-14 10:55:34 | 显示全部楼层
PWDNB 引脚一定要为高电平
发表于 2021-2-11 15:12:21 | 显示全部楼层
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