{"id":40,"date":"2014-01-16T22:56:49","date_gmt":"2014-01-16T13:56:49","guid":{"rendered":"http:\/\/otsuka.biz\/blog1\/?p=40"},"modified":"2024-02-12T13:00:12","modified_gmt":"2024-02-12T04:00:12","slug":"ubwusb-bit-whacker","status":"publish","type":"post","link":"https:\/\/otsuka.biz\/blog1\/ubwusb-bit-whacker\/","title":{"rendered":"PIC18F2550 equipped with a USB bootloader : UBW (USB Bit Whacker)"},"content":{"rendered":"

UBW(USB Bit Whacker) <\/a>\u3092\u7528\u3044\u305f\u5b9f\u9a13\u3092\u884c\u3046\u70ba\u306b\u3001\u79cb\u6708\u96fb\u5b50\u901a\u5546 AE-18F2550 \u30de\u30a4\u30b3\u30f3\u30dc\u30fc\u30c9\u306b\u6e96\u3058\u3066\u3001PIC18F2550\u00a0\u306b bootloader \u3092\u5b9f\u88c5\u3057\u305f\u5b9f\u9a13\u7528\u30dc\u30fc\u30c9\u3092\u4f5c\u88fd\u3057\u305f\u3002<\/p>\n

(Revision on\u00a0June 9, 2017)<\/p>\n

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

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

<<\u00a0Clock of my USB board\u00a0\u00a0>><\/p>\n

A\u00a0configuration of CONFIG1L register of\u00a0a USB bootloader\u00a0is set to\u00a0“Divide by 5 (20 MHz oscillator input) and\u00a096 MHz PLL divided by 2 to derive system clock”, so Fosc is 48MHz derived from\u00a0a\u00a0primary oscillator using\u00a0a 20MHz\u00a0ceramic resonator.<\/p>\n

<<\u00a0Pin connection of my USB board\u00a0>><\/p>\n

Bootloader ( RC0 – LED, RC1 – LED, RC2 – switch2 (pull down), MCLR – switch1 (pull down) )<\/p>\n

LCD\u00a0:\u00a0SC1602BBWB-XA-GB-G ( RS – RB2, R\/W – GND, E – RB3, Data bus – RB4\uff5eRB7 )<\/p>\n

<<\u00a0Three\u00a0components of the UBW\u00a0bootloader >><\/p>\n

\n\n
\n
\n
\n
\"\u30a2\u30a4\u30b3\u30f3\"<\/div>\n
\n

UBW bootloader<\/a><\/h3>\n
<\/i> 1 \u30d5\u30a1\u30a4\u30eb <\/i> 156.81 KB<\/div>\n <\/div>\n
\n \u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/a>\n <\/div>\n <\/div>\n <\/div>\n<\/div>\n\n<\/div>\n

1)\u00a0\u00a0\u00a0 UBW firmware.hex into a\u00a0PIC18F2550 (external-resonator of 20MHz, CPU-clock of 48MHz, code-offset of 0x800);<\/p>\n

2)\u00a0\u00a0\u00a0 USB driver into a Windows PC;<\/p>\n

3)\u00a0\u00a0\u00a0 Myboot into a\u00a0Windows PC (code-offset of 0x800);<\/p>\n

<<\u00a0LCD display\u00a0code\u00a0>><\/p>\n

\n\n
\n
\n
\n
\"\u30a2\u30a4\u30b3\u30f3\"<\/div>\n
\n

LCD for UBW<\/a><\/h3>\n
<\/i> 1 \u30d5\u30a1\u30a4\u30eb <\/i> 1.76 KB<\/div>\n <\/div>\n
\n \u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/a>\n <\/div>\n <\/div>\n <\/div>\n<\/div>\n\n<\/div>\n

(A\u00a0code for a USB bootloader\u00a0must be compiled by XC8\u00a0at the\u00a0code offset, 0x800.)<\/p>\n

UBW\u5bfe\u5fdc\u8a2d\u5b9a\uff1a
\nMPLAB X IDE\u306e\u30e1\u30cb\u30e5\u30fc\u304b\u3089\u3001[File] –> [Project Propaties]\u3092\u9078\u629e
\nXC8 linker \u3092\u9078\u629e
\nOption categoried\u6b04\u3067\u3001Additional options \u3092\u9078\u629e
\nCodeoffset\u6b04\u306b\u3001\u300c0x800\u300d\u3092\u5165\u529b<\/p>\n","protected":false},"excerpt":{"rendered":"

UBW(USB Bit Whacker) \u3092\u7528\u3044\u305f\u5b9f\u9a13\u3092\u884c\u3046\u70ba\u306b\u3001\u79cb\u6708\u96fb\u5b50\u901a\u5546 AE-18F2550 \u30de\u30a4\u30b3\u30f3\u30dc\u30fc\u30c9\u306b\u6e96\u3058\u3066\u3001PIC18F2550\u00a0\u306b bootloader \u3092\u5b9f\u88c5\u3057\u305f\u5b9f\u9a13\u7528\u30dc\u30fc\u30c9\u3092\u4f5c\u88fd\u3057\u305f\u3002 (Revi […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"vkexunit_cta_each_option":"","footnotes":""},"categories":[2,11],"tags":[],"class_list":["post-40","post","type-post","status-publish","format-standard","hentry","category-pic","category-test-board-of-pic"],"_links":{"self":[{"href":"https:\/\/otsuka.biz\/blog1\/wp-json\/wp\/v2\/posts\/40","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/otsuka.biz\/blog1\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/otsuka.biz\/blog1\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/otsuka.biz\/blog1\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/otsuka.biz\/blog1\/wp-json\/wp\/v2\/comments?post=40"}],"version-history":[{"count":2,"href":"https:\/\/otsuka.biz\/blog1\/wp-json\/wp\/v2\/posts\/40\/revisions"}],"predecessor-version":[{"id":3322,"href":"https:\/\/otsuka.biz\/blog1\/wp-json\/wp\/v2\/posts\/40\/revisions\/3322"}],"wp:attachment":[{"href":"https:\/\/otsuka.biz\/blog1\/wp-json\/wp\/v2\/media?parent=40"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/otsuka.biz\/blog1\/wp-json\/wp\/v2\/categories?post=40"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/otsuka.biz\/blog1\/wp-json\/wp\/v2\/tags?post=40"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}