Hi,TI
我想用LP8860-Q1实现控制背光但是遇到了问题,能帮忙看一下吗?
1.通过i2c想将寄存器0x66的BRT_MODE设置为10,利用i2cset向0x66中写入0xb2,命令执行结束,但是寄存器中的值却并未更新,这是因为什么?
2.如果我想要通过I2C控制背光,并调节背光亮度,应该怎么做?
这是我这边dump出来的寄存器数据
console:/bin # i2cdump -f -y 8 0x2d 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef 00: 00 00 0f 7c 00 00 00 00 00 00 00 00 00 0e 08 00 ..?|.........??. 10: 00 00 10 04 50 0f 7c 00 00 80 00 00 00 00 00 00 ..??P?|..?...... 20: 00 00 00 00 06 00 00 00 00 00 00 00 00 00 00 00 ....?........... 30: 0b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ?............... 40: 67 68 69 43 0f d2 aa ff 02 90 a7 34 f2 11 e5 61 ghiC???????4???a 50: 00 de 88 9a d0 00 00 00 00 00 00 00 00 00 00 00 .????........... 60: ef 7c de 81 d7 05 b0 77 77 71 3f b7 17 ef b0 84 ?|?????wwq?????? 70: d9 24 e5 f5 3a 16 de ff 3e 00 00 00 00 00 00 00 ?$??:???>....... 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
谢谢!