PixelImage 0.4.51

New build of my image converter for embedded projects: *0.4.51* (Windows OS)

PixelImage

New feature: *Color calculator* (RGB,HSV to RGB565 and vice versa)

What's new:

* Changed row alignment rules (read compatible with previous version).
* Removed 4-byte row alignment for flash bitmap export (padding affects RA8875 DMA compatibility).
* Added Color calculator (RGB,HSV to RGB565 and vice versa).
* Bunch of small fixes.

Download at SourceForge

RA8875 LCD Flash share with Arduino

Hi!
For some time I have fun with 7" LCD display from Waveshare built on RAiO RA8875 controller chip. One of RA8875 great features is DMA support to load images from onboard flash chip.
Real trouble that there is no way to reprogram flash chip after soldering it to board.
Thanks to Waveshare engineers made header for dedicated flash SPI interface! There is no need to solder flash chip to display PCB, you can connect it to this header.

Idea! RA8875 does not use dedicated SPI all the time, only while DMA transfer is active. So why not share flash chip between two SPI buses: RA internal and Arduino?

There are cool IC's: 74LVC1G3157, single analog/digital SPDT switches. So, almost all time flash chip is connected to RAiO SPI, but when needed, it can be switched to Arduino's SPI bus. Switch control pins are connected to Arduino's CS pin.

Image Editor/Converter for embedded (MCU-based) projects

Hi! Some time ago I've bought Arduino Due board (based on Atmel SAM3X8E chip) and 4.3'' 16-bit color TFT display. When I started to code graphics output, I've found that existing picture tools not very handy for me. So I've made a helper tool for graphic conversion. After some time, I've decided to make this program open source and add some useful functions.

I've tried to make easy-to-use image editor/converter, and hope I succeeded.

PixelImage

works under Windows (Linux users, sorry...)

at SourceForge.net

If you find this project interesting, please feel free to leave comments and bugreports at sourceforge.

Font Editor for embedded projects

Hi! I've started a new project: Pixel font editor for DIY embedded projects.

Features:

• Character map generator from any installed font with flexible options.
• Individual character editor
• A bunch of code export options:
• UTFT library support
• Array for Nokia 3310/1202 LCD's
• Customized array (byte,bit order, packed character data)

Take a look here:

at SourceForge.net