Outils pour utilisateurs
robotics:computing:atmel_avr_tips
Différences
Cette page vous affiche les différences entre la révision choisie et la version actuelle de la page.
|
robotics:computing:atmel_avr_tips [2011/02/25 11:47] gdo |
— (Version actuelle) | ||
|---|---|---|---|
| Ligne 1: | Ligne 1: | ||
| - | ====== avrdude: error: programm enable: target doesn't answer. 1 ====== | ||
| - | When programming your Atmel Avr with avrdude, you could get this error : | ||
| - | |||
| - | <code>$ sudo avrdude -p m48 -c usbasp -U lfuse:w:0xc2:m | ||
| - | |||
| - | avrdude: error: programm enable: target doesn't answer. 1 | ||
| - | avrdude: initialization failed, rc=-1 | ||
| - | Double check connections and try again, or use -F to override | ||
| - | this check. | ||
| - | |||
| - | |||
| - | avrdude done. Thank you.</code> | ||
| - | |||
| - | It is often due to fuse bits setted for using an external oscillator. To change this, just plug a crystal oscillator (4 MHz for example) between pin XTAL1 and XTAL2 of your AVR. Plug also two 15 pF capacity between XTAL1 and Ground and between XTAL2 and Ground. \\ | ||
| - | \\ | ||
| - | Then you can program your AVR to use the internal oscillator. Here the avrdude command line for an atmega48 using an usbasp programmer : | ||
| - | <code>$ sudo avrdude -pm48 -cusbasp -Ulfuse:w:0xc2:m | ||
| - | |||
| - | avrdude: AVR device initialized and ready to accept instructions | ||
| - | |||
| - | Reading | ################################################## | 100% 0.01s | ||
| - | |||
| - | avrdude: Device signature = 0x1e9205 | ||
| - | avrdude: reading input file "0xc2" | ||
| - | avrdude: writing lfuse (1 bytes): | ||
| - | |||
| - | Writing | ################################################## | 100% 0.00s | ||
| - | |||
| - | avrdude: 1 bytes of lfuse written | ||
| - | avrdude: verifying lfuse memory against 0xc2: | ||
| - | avrdude: load data lfuse data from input file 0xc2: | ||
| - | avrdude: input file 0xc2 contains 1 bytes | ||
| - | avrdude: reading on-chip lfuse data: | ||
| - | |||
| - | Reading | ################################################## | 100% 0.00s | ||
| - | |||
| - | avrdude: verifying ... | ||
| - | avrdude: 1 bytes of lfuse verified | ||
| - | |||
| - | avrdude: safemode: Fuses OK | ||
| - | |||
| - | avrdude done. Thank you.</code> | ||
| - | |||
| - | Now you can remove your crystal oscillator and the two capacity. You should be able to program your AVR. | ||
robotics/computing/atmel_avr_tips.1298630841.txt.gz · Dernière modification: 2012/09/20 10:52 (modification externe)
Outils de la page
Sauf mention contraire, le contenu de ce wiki est placé sous les termes de la licence suivante : GNU Free Documentation License 1.3
