| 0,0 → 1,38 |
|---|
| i2c-tiny-usb - (c) 2006 by Till Harbaum |
| --------------------------------------- |
| http://www.harbaum.org/till/i2c_tiny_usb |
| |
| The firmware code itself is distributed under the GPL, but |
| one of the usb codes comes under a separate license. Plase see |
| the .txt files in usbdrv for details. |
| |
| The default configuration is for a attiny45. The Makefile.mega8 |
| allows to compile the device for the Atmega8 cpu. This includes |
| the possibility to use the atmega8 rs232 for debugging. |
| |
| The attiny45 has to be programmed in high voltage serial |
| programming (hsvp) mode since this application needs the |
| reset pin to be reconfigured for other use. |
| |
| This project supports two usb implementations: the avrusb and |
| usbtiny. Due to this four Makefiles exist: |
| |
| Makefile-avrusb.tiny45 - build with avrusb for Attiny45 |
| Makefile-avrusb.mega8 - build with avrusb for Atmega8 |
| Makefile-usbtiny.tiny45 - build with usbtiny for Attiny45 |
| Makefile-usbtiny.mega8 - build with usbtiny for Atmega8 |
| |
| Just type |
| make -f Makefile-avrusb.xxx program |
| or |
| make -f Makefile-usbtiny.xxx flash |
| |
| to compile and upload the file. Please adjust e.g. programmer |
| settings in the Makefile. |
| |
| If you don't want to recompile the firmware yourself you might |
| use the included firmware.hex which is a prebuilt binary for the |
| attiny45. Plase make sure you adjust the fuses accordingly. |
| They need to be set to "external crystal > 8Mhz" and the RESET |
| pin has to be disabled in order to be re-used for application |
| specific purposes. See Makefile-avrusb.tiny45 for more details. |