怎么从LCD控制器中读取寄存器？

你好，我是MPLAB的新手，我用和声。我为ILI9341生成了pmp驱动程序和LCD驱动程序。我的设置是PIC32MX340F512H，MPLAB X IDE，HARMony v1.09。ILI931的驱动程序与框架下的其他驱动程序类似。和预期的一样集成和编译良好。我有背光并且我检查了RD，WR信号系统时钟-80Mhz，PMP-8bit与WR和RD线（虽然没有使用RD），颜色钝16位。以下是硬件连接：CS用于LCD-->GNDport RC1-->LCD Resetport RC2-->LCD数据/命令PMWR>LCD WRPMRD-->此时不使用。PMD0到PMD7-->LCD D0到D7I写到LCD寄存器，当我试图读时，II什么也没得到（我读到的地址和我使用的reg相同）。我应该使用PMP 16位接口吗？任何帮助，谢谢



      以下为原文

    Hi,
I am new to mplab, and I am using harmony. I generated pmp driver and LCD driver for ILI9341
My setup is here

PIC32MX340F512H, MPLAB X IDE , Harmony v1.09.
The driver for ILI9341 done similarly as other drivers under framework..driver..gfx..controller.. and integrates and compiles fine as expected.
I have backlight and I checked RD, WR signals

Sys Clock - 80Mhz, PMP - 8bit with WR and RD lines (not using RD though), Color deapth 16bit.
Following are hardware connections:
CS for LCD --> GND
port RC1 --> LCD Reset
port RC2 --> LCD data/command
PMWR --> LCD WR
PMRD --> not used at this time.
PMD0 to PMD7 --> LCD D0 to D7

I write to LCD register and when I try to read , II got nothing (I read the same address as the reg I use )

Should I use PMP 16bit interface ?
Any help , Thank you