Mohan gandhi Vinnakota

Important changes to forums and questions

All forums and questions are now archived. To start a new conversation or read the latest updates go to forums.mbed.com.

8 years, 6 months ago.

ST7920 LCD driver interfacing Nucleo-L053r8

Hi everyone, I'm trying ti interface ST7920 with Nucleo-L053R8 board. My hardware configuration is as below.

Pin .No	Pin name (ST7920)	       Nucleo-L053R8
1	              VSS	                               GND
2	              VDD	                               +5V
3	               VO	                               +5V
4	               RS ( CS)	                        MOSI ( D11)
5	               R/W 	                                CS      (D10)
6	               E(SCLK)	                        MISO (D12)
7-14          	DBO –DB7	                D0 – D7
15	                PSB                        	        NC
16	                 NC	                                NC
17	                 /RST	                        NC
18	                Vout/NC	                        NC
19	                LED_K	                        GND
20 	               LED_A	                        +5V

Are these connections are right? Thank you.

<<code>>

  1. include "st7920.h"
  2. include "mbed.h"

ST7920::ST7920 (PinName _RS,PinName _RW, PinName _E, PinName DB0, PinName DB1, PinName DB2, PinName DB3, PinName DB4, PinName DB5, PinName DB6, PinName DB7) ST7920 st79(D11,D10,D12,D0,D1,D2,D3,D4,D5,D6,D7);

int main () { st79.InitDisplay(); while(1) {

st79.DisplayChar(1,1,9); wait_ms(1000);

} } <</code>>

posted by Mohan gandhi Vinnakota 29 Oct 2015
Be the first to answer this question.