How to prog a µc without a computer? TinyHexEditor is an onboard flash rom editor for the ATtiny13.
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The construction is very easy. The connection LCD_RST to VCC saves the port pin we need for the input.
| -| t13 |- | VCC (3V) / LCD_RST | |
| LCD_SDIN | -| |- | LCD_SCE |
| LCD_SCLK | -| |- | LCD_DC |
| GND | -|______|- | INPUT(Button - GND) |
• start editor: connect PortB0 to ground / hold the button (at startup)
• button input: short-NEXT; long-OK
• organisation: Sites->Line->Word->edit Word->Save
• chancel: disconnect from battery
Thank you. You can edit the editor itself. (open heart surgery) The Code stands at the end. In the current version the user programm starts automaticly (Address 0x0002). I think the best way to organize seperat programs or functions is the rcall or icall command. In this way you can reuse your code.
If you reuse the existing code (spiOut function/ existing char set) Hallo world can be very short. Relative :)
Thomas Baum
RMC
gokux
Owl Labs
Toulon
How much clicks is takes to program "Hello World" greeting? :-)
I like the project. Can you edit the editor itself? Can you move the PC to edited region in order to execute the entered program?