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你好,请问下我这边怎么通过DS90UB927去读取接在DS90UB928的触摸屏数据?谢谢!
通过FPD-LINK III接口Back channel 上的I2C信号,链接第3页的Figure 1-1可能对您有帮助:http://www.ti.com.cn/cn/lit/ug/snlu125/snlu125.pdf
你好,我想请问一下,我与TP的i2c已经通了,但是中断无法在927这一端接收到,文档中说需要设置927的寄存器0xC6,可是我却写不进去,其他寄存器都可以写进去的。如下:
1.On the DS90UB927Q-Q1 serializer, set register reg_0xC6[5] = 1 and 0xC6[0] = 1 (Table 5) to configure the interrupt.
我先读取0xC6的值,读出来之后是0x00,然后写入0x21,再次读出之后,仍然是0x00。
是还需要修改其他什么地方吗?我目前修改过的寄存器927上面包括(0x03, 0x07,0x08,0x0D,0x14以及0xC6),928上面修改的寄存器有(0x24,0x1D)
这一些寄存器是否对中断有影响?