Check refresh speed by transfermode 4bit,3bit,1bit with MIP8F_SPI_Ver50
Dependencies: MIP8F_SPI_Ver50 MIP8f_FRDM_LineBuffer_sample mbed
Dependents: MIP8f_FRDM_Animation_sample
Introduction
this sample is checking the refresh display speed between 4bit,3bit and 1bit transfer mode.
- spi-transfer to Display has 3 mode. 4bit mode is color display, this bit arrange is R,G,B,x. R,G,B = R,G,B subpixel bit. x bit is Dummy. 3bit mode is color display, this bit arrange is R,G,B. R,G,B = R,G,B subpixel bit. No bit is Dummy. 1bit mode is monocrome display,high speed refresh mode. a only Green subpixel of bitmap data is transfered.
Other information , please refer to https://os.mbed.com/teams/JapanDisplayInc/code/MIP8f_FRDM_sample/
Usage
Copy Setting File and Image to micro SD-CARD. you can NOT use same sample color images of OTHER VERSION SAMPLE.
a) Download the following file corresponding to the target panel, and rename file identifier (.bin -> .zip), and unzip the file on micro SD Card's root directory.
LPM027M128x (400x240) :/media/uploads/JDI_Mbed_Team/400x240_ver30.bin
b) Insert micro SD-CARD to FRDM-K64F. c) Upload binary file to FRDM-K64F.and push Reset Button.
Other information
refer to Usage on https://os.mbed.com/teams/JapanDisplayInc/code/MIP8f_FRDM_sample/
this Sample Code (.bin)
/media/uploads/JDI_Mbed_Team/mip8f_frdm_transfermode_sample.k64f.bin
Diff: Adafruit_LEDBackpack/Adafruit_LEDBackpack.h
- Revision:
- 0:33fe30a2b785
diff -r 000000000000 -r 33fe30a2b785 Adafruit_LEDBackpack/Adafruit_LEDBackpack.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Adafruit_LEDBackpack/Adafruit_LEDBackpack.h Tue Sep 04 06:44:01 2018 +0000 @@ -0,0 +1,74 @@ +/*************************************************** + This is a library for our I2C LED Backpacks + + Designed specifically to work with the Adafruit LED Matrix backpacks + ----> http://www.adafruit.com/products/ + ----> http://www.adafruit.com/products/ + + These displays use I2C to communicate, 2 pins are required to + interface. There are multiple selectable I2C addresses. For backpacks + with 2 Address Select pins: 0x70, 0x71, 0x72 or 0x73. For backpacks + with 3 Address Select pins: 0x70 thru 0x77 + + Adafruit invests time and resources providing this open source code, + please support Adafruit and open-source hardware by purchasing + products from Adafruit! + + Written by Limor Fried/Ladyada for Adafruit Industries. + BSD license, all text above must be included in any redistribution + ****************************************************/ + + /* + * Modified by Luiz Hespanha (http://www.d3.do) 8/16/2013 for use in LPC1768 + */ + +#include "mbed.h" +#include "Adafruit_GFX.h" + +#define LED_ON 1 +#define LED_OFF 0 + +#define LED_RED 1 +#define LED_YELLOW 2 +#define LED_GREEN 3 + + + +#define HT16K33_BLINK_CMD 0x80 +#define HT16K33_BLINK_DISPLAYON 0x01 +#define HT16K33_BLINK_OFF 0 +#define HT16K33_BLINK_2HZ 1 +#define HT16K33_BLINK_1HZ 2 +#define HT16K33_BLINK_HALFHZ 3 + +#define HT16K33_CMD_BRIGHTNESS 0x0E + +// this is the raw HT16K33 controller +class Adafruit_LEDBackpack { + public: + Adafruit_LEDBackpack(I2C *i2c); + void begin(uint8_t _addr); + void setBrightness(uint8_t b); + void blinkRate(uint8_t b); + void writeDisplay(void); + void clear(void); + + uint16_t displaybuffer[8]; + + void init(uint8_t a); + + protected: + I2C *_i2c; + + private: + uint8_t i2c_addr; +}; + +class Adafruit_8x8matrix : public Adafruit_LEDBackpack, public Adafruit_GFX { + public: + Adafruit_8x8matrix(I2C *i2c); + + void drawPixel(int16_t x, int16_t y, uint16_t color); + + private: +}; \ No newline at end of file