{"id":3854,"date":"2019-05-26T12:36:48","date_gmt":"2019-05-26T10:36:48","guid":{"rendered":"https:\/\/entropie.org\/3615\/?p=3854"},"modified":"2021-03-21T14:00:33","modified_gmt":"2021-03-21T13:00:33","slug":"programmation-dun-bootloader-sur-un-atmega-328p-8-mhz-33-v","status":"publish","type":"post","link":"https:\/\/entropie.org\/3615\/index.php\/2019\/05\/26\/programmation-dun-bootloader-sur-un-atmega-328p-8-mhz-33-v\/","title":{"rendered":"Programmation d\u2019un bootloader sur un ATmega 328P (8 MHz \/ 3,3 V)"},"content":{"rendered":"

Article mis \u00e0 jour le 21\/03\/2021.<\/p>\n

\"\"<\/a><\/p>\n

Sur le site Arduino, on trouve la marche \u00e0 suivre : From Arduino to a Microcontroller on a Breadboard<\/a>. Toutefois, cela s’est av\u00e9r\u00e9 insuffisant en ce qui me concerne, d’o\u00f9 ce tutoriel pour compl\u00e9ter ou corriger.<\/p>\n

Version du logiciel utilis\u00e9e : Arduino 1.8.13<\/a><\/p>\n

S’il n’existe pas, cr\u00e9er un sous-r\u00e9pertoire \u00ab\u00a0hardware\u00a0\u00bb dans le r\u00e9pertoire personnel \u00ab\u00a0sketchbook\u00a0\u00bb d’Arduino.
\nT\u00e9l\u00e9charger et d\u00e9compresser breadboard-1-8-x.7z<\/a> dans le r\u00e9pertoire hardware ci-dessus :<\/p>\n

> sketchbook > hardware > breadboard > avr > boards.txt<\/span>
\n> sketchbook > hardware > breadboard > avr > bootloaders > atmega > ATmegaBOOT_168_atmega328_pro_8MHz.hex<\/span><\/p>\n

Fichier boards.txt<\/span> :
\n
\n#################################################################
\n<\/span>
\natmega328bb.name=ATmega328P on a breadboard (8 MHz internal clock \/ 3.3 V \/ BOD at 2.7 V)
\n<\/span>
\natmega328bb.upload.protocol=arduino
\natmega328bb.upload.maximum_size=30720
\natmega328bb.upload.speed=57600
\natmega328bb.upload.tool=arduino:avrdude
\n<\/span>
\natmega328bb.bootloader.low_fuses=0xE2
\natmega328bb.bootloader.high_fuses=0xDA
\natmega328bb.bootloader.extended_fuses=0xFD
\natmega328bb.bootloader.file=atmega\/ATmegaBOOT_168_atmega328_pro_8MHz.hex
\natmega328bb.bootloader.unlock_bits=0x3F
\natmega328bb.bootloader.lock_bits=0x0F
\natmega328bb.bootloader.tool=arduino:avrdude
\n<\/span>
\natmega328bb.build.mcu=atmega328p
\natmega328bb.build.f_cpu=8000000L
\natmega328bb.build.board=AVR_ATMEGA328BB
\natmega328bb.build.core=arduino:arduino
\natmega328bb.build.variant=arduino:standard
\n<\/span>
\n#################################################################
\n<\/span><\/span><\/p>\n

Concernant les fusibles (fuses), voir AVR Fuse Calculator<\/a>.
\n\"\"
\n\"\"<\/p>\n

Si l’ATmega a d\u00e9j\u00e0 \u00e9t\u00e9 \u00ab\u00a0bootload\u00e9\u00a0\u00bb en 16 MHz :
\n– Mettre le quartz 16 Mhz
\n– Ouvrir le logiciel Arduino
\n– Choisir comme type de carte ATmega 328P on a breadboard (8 MHz internal clock \/ 3,3 V \/ BOD at 2.7 V)
\n– Choisir comme programmateur Arduino as ISP
\n– Graver la s\u00e9quence d’initialisation<\/p>\n

Si l’ATmega a d\u00e9j\u00e0 \u00e9t\u00e9 \u00ab\u00a0bootload\u00e9\u00a0\u00bb en 8 MHz interne :
\n– Ne pas mettre de quartz
\n– Ouvrir le logiciel Arduino
\n– Choisir comme type de carte ATmega 328P on a breadboard (8 MHz internal clock \/ 3,3 V \/ BOD at 2.7 V)
\n– Choisir comme programmateur Arduino as ISP
\n– Graver la s\u00e9quence d’initialisation<\/p>\n","protected":false},"excerpt":{"rendered":"

Article mis \u00e0 jour le 21\/03\/2021. Sur le site Arduino, on trouve la marche \u00e0 suivre : From Arduino to a Microcontroller on a Breadboard. Toutefois, cela s’est av\u00e9r\u00e9 insuffisant en ce qui me concerne, d’o\u00f9 ce tutoriel pour compl\u00e9ter ou corriger. Version du logiciel utilis\u00e9e : Arduino 1.8.13 S’il n’existe pas, cr\u00e9er un sous-r\u00e9pertoire … Continuer la lecture de « Programmation d\u2019un bootloader sur un ATmega 328P (8 MHz \/ 3,3 V) »<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,5],"tags":[],"class_list":["post-3854","post","type-post","status-publish","format-standard","hentry","category-arduino","category-tutoriels"],"_links":{"self":[{"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/posts\/3854"}],"collection":[{"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/comments?post=3854"}],"version-history":[{"count":27,"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/posts\/3854\/revisions"}],"predecessor-version":[{"id":3882,"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/posts\/3854\/revisions\/3882"}],"wp:attachment":[{"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/media?parent=3854"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/categories?post=3854"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/entropie.org\/3615\/index.php\/wp-json\/wp\/v2\/tags?post=3854"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}