原创 STM32F1 with 1.5inch CSTN Color LCD

First of all, happy new year and happy Valentine's day!

Life has been very busy over the past few months... My first post is now released!

Acknowledgement:
http://www.powermcu.com - for STM32 RTC Library

Some time ago, I bought two 1.5" CSTN Color LCD panels from Taobao.
To my surprise, the price for each of them was only RMB$7.5!

Fig.2 Datasheet of the controller

 

Using a in-house made STM32 evaluation board and also a in-house made DC-DC converter to generate 6.4V for LED backlight from 5V, the hardware parts and connections are done.

 

Fig.3 An in-house made STM32 eval. board with RTC backup battery

 

Fig. 4&5 In-house made DC-DC supply (using LM2577)

 

The LCD panel is fixed on a PCB and some soldering works are done.

Fig. 6 The LCD panel fixed on a PCB to form a LCD module (LCM)

 

Fig. 7 Back view of the LCM

 

Fig. 8 The hardware part is done

 

The LCD driver program has been written, it mainly consists of:

1. LCDS_Init(void) - init the LCD panel

2. LCDS_DrawPixel(x,y,color) - set the pixel (x,y) to color

3. LCDS_DrawLine(x0,y0,x1,y1,color) - draw a line (x0,y0) to (x1,y1) to color

4. LCDS_DrawRect(x0,y0,x1,y1,color,style) - draw a rectangle in color with style (solid border/filled)

5. LCDS_DrawChar(x,y,ch,color) - draw a character with fonts.h (written by ST) at position (x,y)
6. LCDS_DispChar(line,char_pos,ch,color) - display a character at line (0-7), char_pos(0-15)

7. LCDS_DispString(line,start_pos,string,foreColor,backColor) - display a series of string

 

Fig. 9 Using Keil uVision 4 as the IDE

 

Fig. 10 Developing the LCD driver library

 

Fig. 11 Debug information is displayed though Hyper Terminal with UART

 

With the RTC library, the time is display on the LCM at an interval of 1s (by RTC interrupt).

 

Fig. 12 RTC Date and Time shown on LCM

 

Fig. 13 Overall view

Attached are the full project source code and the datasheet of the LCD controller S6B33B6.
Special notes:
Libraries not written by MarioTech belong to their original owners.
Libraries written by MarioTech is released under GPL license.