JapanDisplayInc
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
--- /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:
+};
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