SSD1306_LCD Example for WIZwiki-W7500
Dependencies: Adafruit_GFX mbed-dev
Prerequisite
This example is for OLED test.
To implement this function, you need a Platform board and OLED.
Below are what we used.
- WIZwiki-W7500 from WIZnet (Platform board)
- OLED from WIZnet
Hardware Configuration
WIZwiki-W7500 Pin map
OLED (from WIZnet)
Wiring Table
OLED | W7500 |
SCL | PA_9 |
SDA | PA_10 |
GND | GND |
VCC | VCC |
Software
Define Pins
main.cpp
#if defined(TARGET_WIZwiki_W7500) #define SDA PA_10 #define SCL PA_9 #endif
Set data for OLED
main.cpp
gOled.begin(); gOled.printf("%ux%u OLED Display\r\n", gOled.width(), gOled.height()); gOled.display();
Caution
watchout pins setting
Diff: main.cpp
- Revision:
- 0:81a58b2fb28e
- Child:
- 1:6b03b9f64311
diff -r 000000000000 -r 81a58b2fb28e main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Tue Jun 23 09:49:31 2015 +0000 @@ -0,0 +1,42 @@ +#include "mbed.h" +#include "Adafruit_SSD1306.h" + +DigitalOut myled(LED1); + +#if defined(TARGET_WIZwiki_W7500) +#define SDA PA_10 +#define SCL PA_9 +#endif + +// an SPI sub-class that provides a constructed default +class I2CPreInit : public I2C +{ +public: + I2CPreInit(PinName sda, PinName scl) : I2C(sda, scl) + { + frequency(100000); + start(); + }; +}; + +I2CPreInit gI2C(PA_10,PA_9); +Adafruit_SSD1306_I2c gOled(gI2C,NC,0x78,64,128); +Serial pc(USBTX,USBRX); + +int main() +{ uint16_t x=0, y=0; + + gOled.begin(); + gOled.printf("%ux%u OLED Display\r\n", gOled.width(), gOled.height()); + gOled.display(); + + + while(1) + { + myled = !myled; + gOled.printf("%u\r",x); + gOled.display(); + x = x + 1; + wait(1); + } +}