sk 2개 kt 2개 있는데
sk 1 / kt 2 를 쓰다가 서로 바꾸려고 하면
하나 넘기고 또 하고 그런식으로 해야해서 시간이 너무 걸린다.
어우 유심 더 사던가 해야지 ㅜㅜ
아무튼 6개월간은 110원/월 * 3!
| 요금제 변경 시도 (0) | 2026.01.28 |
|---|---|
| 흑우 음뭬~ (0) | 2025.11.09 |
| 요금제 변경 완료 (0) | 2025.07.03 |
| 아니 이게 머야?!? (국민카드인증 종료) (0) | 2025.07.03 |
| 핸드폰 요금 폭탄 + usim 구매 (0) | 2025.06.29 |
weak는 약한 애라 강한애가 오면 치환당한다.
tt.c 에는 a()함수가 weak로 존재하고
| $ cat tt.c #include <stdio.h> __attribute__((weak)) void a() { printf("a\n"); } void main() { a(); } |
t2.c에는 weak가 아닌 동일 이름의 함수가 있는데
| $ cat t2.c #include <stdio.h> void a() { printf("b\n"); } |
tt.c를 빌드해서 실행하면 weak 함수가 실행되서 a가 나오고
| $ gcc tt.c $ ./a.out a |
두개를 한번에 넣어서 빌드하고 실행하면 weak가 밀려나서 링크 시에는 strong이 붙어 b가 나오게 된다.
| $ gcc tt.c t2.c $ ./a.out b |
---
링커에서 처리하는거라 컴파일 단계에서 단일 파일에 있다면 중복 선언으로 에러가 발생하니 반드시 파일을 분리해야 한다.
| $ cat tt.c #include <stdio.h> __attribute__((weak)) void a() { printf("a\n"); } void a() { printf("b\n"); } void main() { a(); } $ gcc tt.c tt.c:4:6: error: redefinition of ‘a’ 4 | void a() { printf("b\n"); } | ^ tt.c:3:28: note: previous definition of ‘a’ with type ‘void()’ 3 | __attribute__((weak)) void a() { printf("a\n"); } | ^ |
| gcc -D 를 이용하여 명령줄에서 define 하기 (0) | 2026.03.12 |
|---|---|
| gcc __cplusplus 선언 (0) | 2026.02.18 |
| gcc cortex-a9 double형 neon 연산 가속 (3) | 2023.08.08 |
| gcc tree vectorize (0) | 2023.01.26 |
| gcc fstack-protector-strong (0) | 2022.12.06 |
pc13번 언급이 있어서 확인해보니 RTC_OUT / RTC_TAMPER로 설정이 가능하다.
Tamper를 활성화 하면 RTC_OUT 에서 RTC Output on the Tamper pin이 사용 불가능해진다.
Tamper는 인터럽트가 있는걸 봐서는.. 일종의 input 으로 설정되나보다.
rtc_Tamper를 rtc out으로 쓰지 않으면, 기본으로 tamper는 disble 되는 듯
stm32f1xx_hal_rtc.c
| *** Tamper configuration *** ============================ [..] (+) Enable the RTC Tamper and configure the Tamper Level using the HAL_RTCEx_SetTamper() function. You can configure RTC Tamper with interrupt mode using HAL_RTCEx_SetTamper_IT() function. (+) The TAMPER1 alternate function can be mapped to PC13 /** * @brief Initializes the RTC peripheral * @param hrtc pointer to a RTC_HandleTypeDef structure that contains * the configuration information for RTC. * @retval HAL status */ HAL_StatusTypeDef HAL_RTC_Init(RTC_HandleTypeDef *hrtc) { /* Set Initialization mode */ if (RTC_EnterInitMode(hrtc) != HAL_OK) { /* Set RTC state */ hrtc->State = HAL_RTC_STATE_ERROR; return HAL_ERROR; } else { /* Clear Flags Bits */ CLEAR_BIT(hrtc->Instance->CRL, (RTC_FLAG_OW | RTC_FLAG_ALRAF | RTC_FLAG_SEC)); if (hrtc->Init.OutPut != RTC_OUTPUTSOURCE_NONE) { /* Disable the selected Tamper pin */ CLEAR_BIT(BKP->CR, BKP_CR_TPE); } /* Set the signal which will be routed to RTC Tamper pin*/ MODIFY_REG(BKP->RTCCR, (BKP_RTCCR_CCO | BKP_RTCCR_ASOE | BKP_RTCCR_ASOS), hrtc->Init.OutPut); } } |
stm32f1xx_hal_rtc.h
| /** @defgroup RTC_output_source_to_output_on_the_Tamper_pin Output source to output on the Tamper pin * @{ */ #define RTC_OUTPUTSOURCE_NONE 0x00000000U /*!< No output on the TAMPER pin */ #define RTC_OUTPUTSOURCE_CALIBCLOCK BKP_RTCCR_CCO /*!< RTC clock with a frequency divided by 64 on the TAMPER pin */ #define RTC_OUTPUTSOURCE_ALARM BKP_RTCCR_ASOE /*!< Alarm pulse signal on the TAMPER pin */ #define RTC_OUTPUTSOURCE_SECOND (BKP_RTCCR_ASOS | BKP_RTCCR_ASOE) /*!< Second pulse signal on the TAMPER pin */ |
| Mbed studio on ubuntu 22.04 (0) | 2026.02.23 |
|---|---|
| stm32f103c8t6 cpp std::cout 실패 (0) | 2026.02.18 |
| stm32f103 rtc backup register (0) | 2026.01.29 |
| stm32 hal rcc flag (0) | 2026.01.27 |
| stm32 ivt (0) | 2026.01.27 |
rtc에 백업 레지스터라고 해서, software reset 걸려도 살아남는게 있다고 ai가 이야기 하길래 검색
rtc 활성화 하고나니 아래 초기화 코드가 추가되서 따라가서 보면 평범한(?) HAL_RTC_Init() 이 있고
| /** * @brief RTC Initialization Function * @param None * @retval None */ static void MX_RTC_Init(void) { /* USER CODE BEGIN RTC_Init 0 */ /* USER CODE END RTC_Init 0 */ /* USER CODE BEGIN RTC_Init 1 */ /* USER CODE END RTC_Init 1 */ /** Initialize RTC Only */ hrtc.Instance = RTC; hrtc.Init.AsynchPrediv = RTC_AUTO_1_SECOND; hrtc.Init.OutPut = RTC_OUTPUTSOURCE_ALARM; if (HAL_RTC_Init(&hrtc) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN RTC_Init 2 */ /* USER CODE END RTC_Init 2 */ } |
HAL_RTC_MspInit()을 통해
stm32f1xx_hal_rtc.c
| (+) To write to the RTC Backup Data registers, use the HAL_RTCEx_BKUPWrite() function. (+) To read the RTC Backup Data registers, use the HAL_RTCEx_BKUPRead() function. /** * @brief Initializes the RTC peripheral * @param hrtc pointer to a RTC_HandleTypeDef structure that contains * the configuration information for RTC. * @retval HAL status */ HAL_StatusTypeDef HAL_RTC_Init(RTC_HandleTypeDef *hrtc) { uint32_t prescaler = 0U; /* Check input parameters */ if (hrtc == NULL) { return HAL_ERROR; } /* Check the parameters */ assert_param(IS_RTC_ALL_INSTANCE(hrtc->Instance)); assert_param(IS_RTC_CALIB_OUTPUT(hrtc->Init.OutPut)); assert_param(IS_RTC_ASYNCH_PREDIV(hrtc->Init.AsynchPrediv)); #if (USE_HAL_RTC_REGISTER_CALLBACKS == 1) #else if (hrtc->State == HAL_RTC_STATE_RESET) { /* Allocate lock resource and initialize it */ hrtc->Lock = HAL_UNLOCKED; /* Initialize RTC MSP */ HAL_RTC_MspInit(hrtc); } } /** * @brief Initializes the RTC MSP. * @param hrtc pointer to a RTC_HandleTypeDef structure that contains * the configuration information for RTC. * @retval None */ __weak void HAL_RTC_MspInit(RTC_HandleTypeDef *hrtc) { /* Prevent unused argument(s) compilation warning */ UNUSED(hrtc); /* NOTE : This function Should not be modified, when the callback is needed, the HAL_RTC_MspInit could be implemented in the user file */ } |
백업 레지스터에 접근할수 있도록 풀어준다.
Core/Src/stm32f1xx_hal_msp.c
| /** * @brief RTC MSP Initialization * This function configures the hardware resources used in this example * @param hrtc: RTC handle pointer * @retval None */ void HAL_RTC_MspInit(RTC_HandleTypeDef* hrtc) { if(hrtc->Instance==RTC) { /* USER CODE BEGIN RTC_MspInit 0 */ /* USER CODE END RTC_MspInit 0 */ HAL_PWR_EnableBkUpAccess(); /* Enable BKP CLK enable for backup registers */ __HAL_RCC_BKP_CLK_ENABLE(); /* Peripheral clock enable */ __HAL_RCC_RTC_ENABLE(); /* USER CODE BEGIN RTC_MspInit 1 */ /* USER CODE END RTC_MspInit 1 */ } } |
CR_DBP_BB 라는 레지스터에 활성화 해주는것 코드 느낌. 무슨 레지스터인지 따라가긴 귀찮으니 패스
stm32f1xx_hal_pwr.c
| /** * @brief Enables access to the backup domain (RTC registers, RTC * backup data registers ). * @note If the HSE divided by 128 is used as the RTC clock, the * Backup Domain Access should be kept enabled. * @retval None */ void HAL_PWR_EnableBkUpAccess(void) { /* Enable access to RTC and backup registers */ *(__IO uint32_t *) CR_DBP_BB = (uint32_t)ENABLE; } /** * @brief Disables access to the backup domain (RTC registers, RTC * backup data registers). * @note If the HSE divided by 128 is used as the RTC clock, the * Backup Domain Access should be kept enabled. * @retval None */ void HAL_PWR_DisableBkUpAccess(void) { /* Disable access to RTC and backup registers */ *(__IO uint32_t *) CR_DBP_BB = (uint32_t)DISABLE; } |
아무튼 백업레지스터 접근이 허용되면
HAL_RTCEx_BKUPWrite() 를 통해 쓰고
HAL_RTCEx_BKUPRead() 를 통해 읽을 수 있다.
stm32f1xx_hal_rtc_ex.c
| /** * @brief Writes a data in a specified RTC Backup data register. * @param hrtc: pointer to a RTC_HandleTypeDef structure that contains * the configuration information for RTC. * @param BackupRegister: RTC Backup data Register number. * This parameter can be: RTC_BKP_DRx where x can be from 1 to 10 (or 42) to * specify the register (depending devices). * @param Data: Data to be written in the specified RTC Backup data register. * @retval None */ void HAL_RTCEx_BKUPWrite(RTC_HandleTypeDef *hrtc, uint32_t BackupRegister, uint32_t Data) { uint32_t tmp = 0U; /* Prevent unused argument(s) compilation warning */ UNUSED(hrtc); /* Check the parameters */ assert_param(IS_RTC_BKP(BackupRegister)); tmp = (uint32_t)BKP_BASE; tmp += (BackupRegister * 4U); *(__IO uint32_t *) tmp = (Data & BKP_DR1_D); } /** * @brief Reads data from the specified RTC Backup data Register. * @param hrtc: pointer to a RTC_HandleTypeDef structure that contains * the configuration information for RTC. * @param BackupRegister: RTC Backup data Register number. * This parameter can be: RTC_BKP_DRx where x can be from 1 to 10 (or 42) to * specify the register (depending devices). * @retval Read value */ uint32_t HAL_RTCEx_BKUPRead(RTC_HandleTypeDef *hrtc, uint32_t BackupRegister) { uint32_t backupregister = 0U; uint32_t pvalue = 0U; /* Prevent unused argument(s) compilation warning */ UNUSED(hrtc); /* Check the parameters */ assert_param(IS_RTC_BKP(BackupRegister)); backupregister = (uint32_t)BKP_BASE; backupregister += (BackupRegister * 4U); pvalue = (*(__IO uint32_t *)(backupregister)) & BKP_DR1_D; /* Read the specified register */ return pvalue; } |
F103의 경우 10개가 있나 보다. 그런데 BKP_DRn_D 마스크는 왜 전부 0xFFFF 으로 동일한걸까?
stm32f103xb.h
| /******************************************************************************/ /* */ /* Backup registers */ /* */ /******************************************************************************/ /******************* Bit definition for BKP_DR1 register ********************/ #define BKP_DR1_D_Pos (0U) #define BKP_DR1_D_Msk (0xFFFFUL << BKP_DR1_D_Pos) /*!< 0x0000FFFF */ #define BKP_DR1_D BKP_DR1_D_Msk /*!< Backup data */ /******************* Bit definition for BKP_DR2 register ********************/ #define BKP_DR2_D_Pos (0U) #define BKP_DR2_D_Msk (0xFFFFUL << BKP_DR2_D_Pos) /*!< 0x0000FFFF */ #define BKP_DR2_D BKP_DR2_D_Msk /*!< Backup data */ /******************* Bit definition for BKP_DR3 register ********************/ #define BKP_DR3_D_Pos (0U) #define BKP_DR3_D_Msk (0xFFFFUL << BKP_DR3_D_Pos) /*!< 0x0000FFFF */ #define BKP_DR3_D BKP_DR3_D_Msk /*!< Backup data */ /******************* Bit definition for BKP_DR4 register ********************/ #define BKP_DR4_D_Pos (0U) #define BKP_DR4_D_Msk (0xFFFFUL << BKP_DR4_D_Pos) /*!< 0x0000FFFF */ #define BKP_DR4_D BKP_DR4_D_Msk /*!< Backup data */ /******************* Bit definition for BKP_DR5 register ********************/ #define BKP_DR5_D_Pos (0U) #define BKP_DR5_D_Msk (0xFFFFUL << BKP_DR5_D_Pos) /*!< 0x0000FFFF */ #define BKP_DR5_D BKP_DR5_D_Msk /*!< Backup data */ /******************* Bit definition for BKP_DR6 register ********************/ #define BKP_DR6_D_Pos (0U) #define BKP_DR6_D_Msk (0xFFFFUL << BKP_DR6_D_Pos) /*!< 0x0000FFFF */ #define BKP_DR6_D BKP_DR6_D_Msk /*!< Backup data */ /******************* Bit definition for BKP_DR7 register ********************/ #define BKP_DR7_D_Pos (0U) #define BKP_DR7_D_Msk (0xFFFFUL << BKP_DR7_D_Pos) /*!< 0x0000FFFF */ #define BKP_DR7_D BKP_DR7_D_Msk /*!< Backup data */ /******************* Bit definition for BKP_DR8 register ********************/ #define BKP_DR8_D_Pos (0U) #define BKP_DR8_D_Msk (0xFFFFUL << BKP_DR8_D_Pos) /*!< 0x0000FFFF */ #define BKP_DR8_D BKP_DR8_D_Msk /*!< Backup data */ /******************* Bit definition for BKP_DR9 register ********************/ #define BKP_DR9_D_Pos (0U) #define BKP_DR9_D_Msk (0xFFFFUL << BKP_DR9_D_Pos) /*!< 0x0000FFFF */ #define BKP_DR9_D BKP_DR9_D_Msk /*!< Backup data */ /******************* Bit definition for BKP_DR10 register *******************/ #define BKP_DR10_D_Pos (0U) #define BKP_DR10_D_Msk (0xFFFFUL << BKP_DR10_D_Pos) /*!< 0x0000FFFF */ #define BKP_DR10_D BKP_DR10_D_Msk /*!< Backup data */ #define RTC_BKP_NUMBER 10 |
[링크 : https://fuhehe.tistory.com/27]
| 1.9 Backup registers RTC_BKPxR, where x=0 to n backup registers (80 bytes), are reset when a tamper detection event occurs. These registers are powered-on by VBAT when VDD is switched off, so that they are not reset by a system reset, and their contents remain valid when the device operates in low-power mode. Note: The number “n” of backup registers depends on the product. Please refer to Table 15: Advanced RTC features. |
보안상 문제가 발생하면 그걸 TAMP 라는것 같은데, 아무튼 그 때는 백업 레지스터가 초기화 된다고 한다.
[링크 : https://www.st.com/resource/en/product_training/STM32MP1-Security-Tamper_TAMP.pdf]
| stm32f103c8t6 cpp std::cout 실패 (0) | 2026.02.18 |
|---|---|
| stm32 rtc tamper (0) | 2026.01.29 |
| stm32 hal rcc flag (0) | 2026.01.27 |
| stm32 ivt (0) | 2026.01.27 |
| bluepill stm32f103c8t6 USB CDC 리셋이후 안되는 문제 (0) | 2026.01.27 |
창을 찾았으니 이제 문득 예전에 마우스로 막 돌리던거 같은데 싶어서 마우스 이벤트 검색.
[링크 : https://widian.tistory.com/58]
[링크 : https://stackoverflow.com/questions/7462850/mouse-movement-events-in-ncurses]
| #include <curses.h> typedef unsigned long mmask_t; typedef struct { short id; /* ID to distinguish multiple devices */ int x, y, z; /* event coordinates */ mmask_t bstate; /* button state bits */ } MEVENT; bool has_mouse(void); -int getmouse(MEVENT *event); int ungetmouse(MEVENT *event); mmask_t mousemask(mmask_t newmask, mmask_t *oldmask); bool wenclose(const WINDOW *win, int y, int x); bool mouse_trafo(int* pY, int* pX, bool to_screen); bool wmouse_trafo(const WINDOW* win, int* pY, int* pX, bool to_screen); int mouseinterval(int erval); |
| ncurse window 관리 함수 (0) | 2026.01.28 |
|---|---|
| ncurse screen size (0) | 2025.09.30 |
| ncurses 상자 및 색상 적용하기 (0) | 2024.12.02 |
| ncurses 예제 (0) | 2024.11.30 |
| ncurse example (0) | 2022.05.17 |
해보잣!
[링크 : https://magmatart.dev/development/2017/06/02/ncurses1.html]
[링크 : https://magmatart.dev/development/2017/06/05/ncurses2.html]
| #include <curses.h> int border(chtype ls, chtype rs, chtype ts, chtype bs, chtype tl, chtype tr, chtype bl, chtype br); int wborder(WINDOW *win, chtype ls, chtype rs, chtype ts, chtype bs, chtype tl, chtype tr, chtype bl, chtype br); int box(WINDOW *win, chtype verch, chtype horch); int hline(chtype ch, int n); int whline(WINDOW *win, chtype ch, int n); int vline(chtype ch, int n); int wvline(WINDOW *win, chtype ch, int n); int mvhline(int y, int x, chtype ch, int n); int mvwhline(WINDOW *, int y, int x, chtype ch, int n); int mvvline(int y, int x, chtype ch, int n); int mvwvline(WINDOW *, int y, int x, chtype ch, int n); |
[링크 : https://linux.die.net/man/3/box]
| #include <curses.h> WINDOW *newwin(int nlines, int ncols, int begin_y, int begin_x); int delwin(WINDOW *win); int mvwin(WINDOW *win, int y, int x); WINDOW *subwin(WINDOW *orig, int nlines, int ncols, int begin_y, int begin_x); WINDOW *derwin(WINDOW *orig, int nlines, int ncols, int begin_y, int begin_x); int mvderwin(WINDOW *win, int par_y, int par_x); WINDOW *dupwin(WINDOW *win); void wsyncup(WINDOW *win); int syncok(WINDOW *win, bool bf); void wcursyncup(WINDOW *win); void wsyncdown(WINDOW *win); |
| ncurse 마우스 이벤트 처리 (0) | 2026.01.29 |
|---|---|
| ncurse screen size (0) | 2025.09.30 |
| ncurses 상자 및 색상 적용하기 (0) | 2024.12.02 |
| ncurses 예제 (0) | 2024.11.30 |
| ncurse example (0) | 2022.05.17 |
저기를 새로 만든걸로 갈아치우면 되려나?
| main.c #include "lv_examples/src/lv_demo_widgets/lv_demo_widgets.h" void app_main() { printf("\r\nAPP %s is start!~\r\n", TAG); vTaskDelay(1000 / portTICK_PERIOD_MS); xTaskCreatePinnedToCore(guiTask, "gui", 4096*2, NULL, 0, NULL, 1); } void guiTask(void *pvParameter) { lv_demo_widgets(); while (1) { vTaskDelay(1); if (xSemaphoreTake(xGuiSemaphore, (TickType_t)10) == pdTRUE) { lv_task_handler(); xSemaphoreGive(xGuiSemaphore); } } vTaskDelete(NULL); } |
| lv_demo_widgets.h void lv_demo_widgets(void); |
| lv_demo_widgets.c void lv_demo_widgets(void){ tv = lv_tabview_create(lv_scr_act(), NULL); t1 = lv_tabview_add_tab(tv, "Controls"); t2 = lv_tabview_add_tab(tv, "Visuals"); t3 = lv_tabview_add_tab(tv, "Selectors"); // ... } |
옆에 있는(?) lv_demo_stress 를 보는데
| Stress demo Overview A stress test for LVGL. It contains a lot of object creation, deletion, animations, styles usage, and so on. It can be used if there is any memory curruption during heavy usage or any memory leaks. Printer demo with LVGL embedded GUI library Run the demo In lv_ex_conf.h set LV_USE_DEMO_STRESS 1 In lv_conf.h enable all the widgets (LV_USE_BTN 1) and the animations (LV_USE_ANIMATION 1) After lv_init() and initializing the drivers call lv_demo_stress() |
5_35_LVGL_Full_Test-S024\components\lv_examples\lv_examples\lv_ex_conf_templ.h
파일에 먼가 설정이 있는데 한번 stress 활성화 시켜서 봐야겠다.
| /** * @file lv_ex_conf.h * */ /* * COPY THIS FILE AS lv_ex_conf.h */ #if 0 /*Set it to "1" to enable the content*/ #ifndef LV_EX_CONF_H #define LV_EX_CONF_H /******************* * GENERAL SETTING *******************/ #define LV_EX_PRINTF 0 /*Enable printf-ing data in demoes and examples*/ #define LV_EX_KEYBOARD 0 /*Add PC keyboard support to some examples (`lv_drivers` repository is required)*/ #define LV_EX_MOUSEWHEEL 0 /*Add 'encoder' (mouse wheel) support to some examples (`lv_drivers` repository is required)*/ /********************* * DEMO USAGE *********************/ /*Show some widget*/ #define LV_USE_DEMO_WIDGETS 0 #if LV_USE_DEMO_WIDGETS #define LV_DEMO_WIDGETS_SLIDESHOW 0 #endif /*Printer demo, optimized for 800x480*/ #define LV_USE_DEMO_PRINTER 0 /*Demonstrate the usage of encoder and keyboard*/ #define LV_USE_DEMO_KEYPAD_AND_ENCODER 0 /*Benchmark your system*/ #define LV_USE_DEMO_BENCHMARK 0 /*Stress test for LVGL*/ #define LV_USE_DEMO_STRESS 0 #endif /*LV_EX_CONF_H*/ #endif /*End of "Content enable"*/ |
| eez studio (0) | 2026.02.02 |
|---|---|
| esp32 lvgl benchmark (0) | 2026.02.02 |
| squartline studio 설치 (0) | 2026.01.28 |
| lvgl pro + figma vs square line studio (0) | 2026.01.28 |
| freertos on esp32 lvgl 예제 분석 (0) | 2026.01.26 |
악당 1호 꺼 6개월이라
후다닥 변경
2025.07.03 에서 6개월 이후랬는데
1월 3일에 이미 5500원으로 늘어났겠구만 -_ㅠ
+
2026.01.29
2호는 왜 매번 1호 보다 데이터가 많은걸로 가게되지? 참.. 희한해 이게 운빨인가?
1호때는 안보이더니 별 신기한게 더 붙네?
| 요금제 변경 완료 (0) | 2026.01.30 |
|---|---|
| 흑우 음뭬~ (0) | 2025.11.09 |
| 요금제 변경 완료 (0) | 2025.07.03 |
| 아니 이게 머야?!? (국민카드인증 종료) (0) | 2025.07.03 |
| 핸드폰 요금 폭탄 + usim 구매 (0) | 2025.06.29 |
어제 일찍 안자고 뻘짓했는데 -_-
아무튼 오늘은 어제 못해본 squareline studio 시도!
[링크 : https://squareline.io/downloads#lastRelease]
오 깔끔해!
오!! 편하게 끝났어!!
가입없이 30일 쓸 수 있어서 합격!
나름 디자인이 깔끔하고 센스있네
드러운(?) 다이얼로그에서 EULA 창을 안여니 합격!
가장보고 싶었던 ebike demo!
그런데 해상도가 480x272 혹은 800x480 으로 만 선택이 가능하다.
처음부터 해상도 정해서 해야 하는거라면.. 320x240에 맞춰서 변형하던가 새로 만들어야 겠군..
오오오오!
두 개 페이지고 메뉴 선택하면 우측 창이 열리는 구조인가 두개가 보인다.
왜 저기있는지 모르겠지만.. 우측의history 옆에 inspecto? 버튼에 올려진
재생 버튼을 누르면 ui를 테스트 해볼수 있다.
속도계를 어떻게 그렸나 궁금했었던 지라 분석 모드로 전환!
해당 엘리먼트(?)를 클릭하면 Slider Speed라는 이름으로 나온다.
slider_speed로 검색해보니 옆에 값들이 먼가 보이는 느낌?
void ui_Home_screen_init(void) 함수에 위의 객체가 그려지고 있는것 같고
void ui_init(void) 에서 해당 화면을 초기화 한다. 그리고 ui_init은 호출되는게 없는걸 보니 이게 최상위 진입 경로인 듯.
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2026.02.02
홈페이지 하단에 보니 LVGL과 squareline은 분리되었고, 공식 제휴가 없는 독립적인 회사이다. 라고 명시해둠.
[링크 : https://squareline.io/]
| esp32 lvgl benchmark (0) | 2026.02.02 |
|---|---|
| esp32 lvgl 소스 코드 따라가기 (0) | 2026.01.28 |
| lvgl pro + figma vs square line studio (0) | 2026.01.28 |
| freertos on esp32 lvgl 예제 분석 (0) | 2026.01.26 |
| lvgl pro on win10 실패 (0) | 2026.01.22 |
modbus 읽기 명령에 따른 주소번지
표준인지 아니면 사실상 표준인지 모르겠지만 많이들 언급하니까 머..
그런데 예를 들어 read input reg 30001~40000 의 경우
10진수 값이고 30000을 뺴고 1~10000 번 에 펑션코드를 섞는거 같은데
내부 코드 상으로 0부터 인지 아니면 30000 부터 받는건지 모르겠어서 헷갈리네..
[링크 : https://machinejw.tistory.com/25]
| mbpoll (0) | 2025.08.06 |
|---|---|
| libmodbus backend (0) | 2025.03.13 |
| libmodbus pi 함수들 (0) | 2022.05.10 |
| libmodbus modbus_mapping_new() (0) | 2022.05.10 |
| libmodbus poll 적용 (0) | 2022.05.04 |
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