{"id":1399,"date":"2021-01-26T10:58:43","date_gmt":"2021-01-26T01:58:43","guid":{"rendered":"https:\/\/ahnbk.com\/?p=1399"},"modified":"2021-01-26T16:00:07","modified_gmt":"2021-01-26T07:00:07","slug":"stm32cubeide%ec%97%90%ec%84%9c-printf%eb%a5%bc-usart%ec%99%80-%ec%97%b0%ea%b2%b0%ed%95%98%ea%b8%b0","status":"publish","type":"post","link":"https:\/\/ahnbk.com\/?p=1399","title":{"rendered":"STM32CubeIDE\uc5d0\uc11c printf\ub97c USART\uc640 \uc5f0\uacb0\ud558\uae30"},"content":{"rendered":"\n

printf \ucd9c\ub825\uc744 USART\uc640 \uc5f0\uacb0\ud558\uc5ec \uc0ac\uc6a9 \uac00\ub2a5. \ub514\ubc84\uae45 \uc2dc \uc0c1\ub2f9\ud55c \uc774\uc810\uc744 \uac00\uc9c8 \uc218 \uc788\uc74c.<\/p>\n\n\n\n

main.c \ud30c\uc77c\uc5d0 \ub2e4\uc74c\uc758 \ud568\uc218\ub97c \ucd94\uac00.<\/p>\n\n\n\n

\uc774\ub54c uart\uc758 \uc778\uc2a4\ud134\uc2a4\ub97c \uc124\uc815\ud574\uc57c \ud558\ub294\ub370, STM32F746G-DISCO \ubcf4\ub4dc\uc5d0\uc120 USART1\ubc88\uc774 ST-Link\uc758 Virtual Com Port\uc640 \uc5f0\uacb0\ub418\uc5b4 \uc788\uc74c. \ub530\ub77c\uc11c huart1\ub97c \uc120\ud0dd.<\/p>\n\n\n\n

int __io_putchar(int ch) \n{\n     (void) HAL_UART_Transmit(&huart1, (uint8_t*) &ch, 1, 100);\n     return ch;\n}<\/code><\/pre>\n\n\n\n
\ud504\ub85c\uc81d\ud2b8 \uc124\uc815\uc5d0\uc11c printf \ubb38\uc5d0 float \uad6c\ubb38\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub3c4\ub85d \uc124\uc815.<\/p>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n
<\/p>\n\n\n\n
\ub367.<\/p>\n\n\n\n
\uc704 \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud560 \ub54c, FreeRTOS \ud658\uacbd \ub0b4\uc5d0\uc120 \uc54c \uc218 \uc5c6\ub294 \uc774\uc720\ub85c \ub3d9\uc791\uc774 \ub418\uc9c0 \uc54a\uc74c. \uba54\ubaa8\ub9ac \uad00\ub828 (heap \ub4f1\ub4f1)\uc758 \ubb38\uc81c\ub85c \ucd94\uc815\ub41c\ub2e4\ub294\ub370… \uc774\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud574\uc120 \uacbd\ub7c9\ud654 \ub418\uc5b4 \uad6c\ud604\ub41c printf \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uba74 \ub428.<\/p>\n\n\n\n
https:\/\/github.com\/mpaland\/printf<\/a><\/p>\n\n\n\n
\uc774 Repository\uc758 printf.h, printf.c \ud30c\uc77c\uc744 \ud574\ub2f9 \ud504\ub85c\uc81d\ud2b8\uc5d0 \ucd94\uac00\ud558\uace0, printf.h\ub97c \uc778\ud074\ub8e8\ub4dc\ud558\uc5ec \uc0ac\uc6a9.<\/p>\n\n\n\n
\uc0ac\uc6a9\uc790\uc758 \ud658\uacbd\uc5d0 \ub530\ub77c _putchar \ud568\uc218\ub97c \uad6c\ud604\ud558\uba74 \ub428.<\/p>\n\n\n\n
void _putchar(char c)\n{\n    \/* Place your implementation of fputc here *\/     \n    \/* e.g. write a character to the EVAL_COM1 and Loop until the end of transmission *\/     \n    HAL_UART_Transmit(&huart1, (uint8_t<\/em>) &c, 1, 0xFFFF);\n}<\/code><\/pre>\n\n\n\n
\ub05d!<\/p>\n","protected":false},"excerpt":{"rendered":"
printf \ucd9c\ub825\uc744 USART\uc640 \uc5f0\uacb0\ud558\uc5ec \uc0ac\uc6a9 \uac00\ub2a5. \ub514\ubc84\uae45 \uc2dc \uc0c1\ub2f9\ud55c \uc774\uc810\uc744 \uac00\uc9c8 \uc218 \uc788\uc74c. main.c \ud30c\uc77c\uc5d0 \ub2e4\uc74c\uc758 \ud568\uc218\ub97c \ucd94\uac00. \uc774\ub54c uart\uc758 \uc778\uc2a4\ud134\uc2a4\ub97c \uc124\uc815\ud574\uc57c \ud558\ub294\ub370, STM32F746G-DISCO \ubcf4\ub4dc\uc5d0\uc120 USART1\ubc88\uc774 ST-Link\uc758 Virtual Com Port\uc640 \uc5f0\uacb0\ub418\uc5b4 \uc788\uc74c. \ub530\ub77c\uc11c huart1\ub97c \uc120\ud0dd. \ud504\ub85c\uc81d\ud2b8 \uc124\uc815\uc5d0\uc11c printf \ubb38\uc5d0 float \uad6c\ubb38\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub3c4\ub85d \uc124\uc815. \ub367. \uc704 \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud560 \ub54c, FreeRTOS \ud658\uacbd \ub0b4\uc5d0\uc120 \uc54c \uc218 … <\/p>\n
Continue reading “STM32CubeIDE\uc5d0\uc11c printf\ub97c USART\uc640 \uc5f0\uacb0\ud558\uae30”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"footnotes":"","_jetpack_memberships_contains_paid_content":false},"categories":[281],"tags":[314,313,315,312],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2wXSW-mz","jetpack-related-posts":[],"jetpack_likes_enabled":false,"_links":{"self":[{"href":"https:\/\/ahnbk.com\/index.php?rest_route=\/wp\/v2\/posts\/1399"}],"collection":[{"href":"https:\/\/ahnbk.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ahnbk.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ahnbk.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ahnbk.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1399"}],"version-history":[{"count":3,"href":"https:\/\/ahnbk.com\/index.php?rest_route=\/wp\/v2\/posts\/1399\/revisions"}],"predecessor-version":[{"id":1404,"href":"https:\/\/ahnbk.com\/index.php?rest_route=\/wp\/v2\/posts\/1399\/revisions\/1404"}],"wp:attachment":[{"href":"https:\/\/ahnbk.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ahnbk.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1399"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ahnbk.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}