Posted on August 06, 2014 at 11:49Hello, I have a problem for driving LCD. Let me tell you about hardware first:
- I am using STM32F427VI,
- I am using FMC for communicating. D0..D15 and A16 and NE1 pins.
- Pin connections made for 8080 mode.
- I am not using an extarnal memory (ram or rom)
About software:
- I created project file with STM32CubeMX with last versions of F4 package.
- I copied STemWin 5.24b library from STM32CubeF4 folder. I created code without FreeRTOS version.
- I modified GUIConf and LCDConf files. Also i add a function for status reading. This is necessary for emWin for using with RA8875.
- I allocated about 192kbyte ram for emWin.
I am working on it about since 4 days. I can write to screen any message. I can draw to screen lines. But i cannot change background color, or i cannot draw a window. I can just write text messages and draw a line.
What is the problem you think?
Do you thing, do not use an external ram is a reason for this? Because i dont use an external ram but almost in all examples an external ram is using.
#stemwin
