CDC_Standalone
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Outline
Includes
#include "main.h"
Private define
#define NB_BAUD_RATES
Private typedef
DEMO_CONFIGURATION_menu
Private variables
CdcSettingsState
LineCoding
DefaultLineCoding
Prev_BaudRateIdx
Prev_DataBitsIdx
Prev_ParityIdx
Prev_StopBitsIdx
BaudRateValue
DataBitsValue
ParityArray
StopBitsArray
MSG_BITS_PER_SECOND
MSG_DATA_BITS
MSG_PARITY
MSG_STOP_BITS
Private function prototypes
CDC_Handle_Configuration_Menu()
GetDefaultConfiguration()
ReturnFromConfigurationMenu()
ConfigurationMenu_Init()
InitSettingsItems()
CDC_SelectSettingsItem(uint8_t)
CDC_AdjustSettingMenu()
CDC_Settings_ProbeKey(JOYState_TypeDef)
USBH_CDC_LineCodingChanged(USBH_HandleTypeDef *)
Files
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SourceVuSTM32 Libraries and SamplesCDC_StandaloneSrc/cdc_configuration.c
 
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/** ****************************************************************************** * @file USB_Host/CDC_Standalone/Src/cdc_configuration.c * @author MCD Application Team * @brief CDC Settings state machine ****************************************************************************** * @attention * * Copyright (c) 2017 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** *//* ... */ /* Includes ------------------------------------------------------------------*/ #include "main.h" Includes /* Private define ------------------------------------------------------------*/ #define NB_BAUD_RATES 10 Private define /* Private typedef -----------------------------------------------------------*/ uint8_t *DEMO_CONFIGURATION_menu[] = { (uint8_t *)" 1 - Apply new settings ", (uint8_t *)" 2 - Set Default settings ", (uint8_t *)" 3 - Return ", ...}; Private typedef /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ CDC_DEMO_SETTING_StateMachine CdcSettingsState; static CDC_LineCodingTypeDef LineCoding; static CDC_LineCodingTypeDef DefaultLineCoding; uint8_t Prev_BaudRateIdx = 0; uint8_t Prev_DataBitsIdx = 0; uint8_t Prev_ParityIdx = 0; uint8_t Prev_StopBitsIdx = 0; const uint32_t BaudRateValue[NB_BAUD_RATES] = { 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600 }; const uint8_t DataBitsValue[4] = { 5, 6, 7, 8}; const uint8_t ParityArray[3][5] = {"NONE", "EVEN", "ODD"}; const uint8_t StopBitsArray[2][2] = {"1", "2"}; const uint8_t MSG_BITS_PER_SECOND[] = " : Bit Per Second "; const uint8_t MSG_DATA_BITS[] = " : Data width "; const uint8_t MSG_PARITY[] = " : Parity "; const uint8_t MSG_STOP_BITS[] = " : Stop Bits "; Private variables /* Private function prototypes -----------------------------------------------*/ static void ConfigurationMenu_Init(void); static void InitSettingsItems(void); static void ReturnFromConfigurationMenu(void); Private function prototypes /* Private functions ---------------------------------------------------------*/ /** * @brief Handles Configuration Menu. * @param None * @retval None *//* ... */ void CDC_Handle_Configuration_Menu(void) { if(CdcSelectMode == CDC_SELECT_MENU) { switch(CdcDemo.Configuration_state) { case CDC_CONFIGURATION_IDLE: InitSettingsItems(); ConfigurationMenu_Init(); CdcSettingsState.select = 0; CdcDemo.Configuration_state = CDC_CONFIGURATION_WAIT; CDC_SelectItem (DEMO_CONFIGURATION_menu, 0xFF); CdcDemo.select = 0; break; case CDC_CONFIGURATION_IDLE: case CDC_CONFIGURATION_WAIT: if(CdcDemo.select != PrevSelect) { PrevSelect = CdcDemo.select; CDC_SelectItem (DEMO_CONFIGURATION_menu, CdcDemo.select & 0x7F); /* Handle select item */ if(CdcDemo.select & 0x80) { switch (CdcDemo.select & 0x7F) { case 0: /* Apply new settings */ USBH_CDC_SetLineCoding(&hUSBHost, &LineCoding); ReturnFromConfigurationMenu(); break; case 0: case 1: /* Apply default settings */ USBH_CDC_SetLineCoding(&hUSBHost, &DefaultLineCoding); ReturnFromConfigurationMenu(); break; case 1: case 2: /* Return from configuration menu */ ReturnFromConfigurationMenu(); break; case 2: default: break;default }switch (CdcDemo.select & 0x7F) { ... } }if (CdcDemo.select & 0x80) { ... } }if (CdcDemo.select != PrevSelect) { ... } break; case CDC_CONFIGURATION_WAIT: default: break;default }switch (CdcDemo.Configuration_state) { ... } }if (CdcSelectMode == CDC_SELECT_MENU) { ... } else if(CdcSelectMode == CDC_SELECT_CONFIG) { CDC_AdjustSettingMenu(); }else if (CdcSelectMode == CDC_SELECT_CONFIG) { ... } CdcDemo.select &= 0x7F; }{ ... } /** * @brief Returns default configuration. * @param None * @retval None *//* ... */ void GetDefaultConfiguration(void) { USBH_CDC_GetLineCoding(&hUSBHost, &LineCoding); DefaultLineCoding = LineCoding; }{ ... } /** * @brief Returns from Configuration Menu. * @param None * @retval None *//* ... */ static void ReturnFromConfigurationMenu(void) { CdcDemo.state = CDC_DEMO_IDLE; CdcDemo.select = 0; /* Restore main menu */ LCD_ClearTextZone(); LCD_LOG_UpdateDisplay(); Menu_Init(); }{ ... } /** * @brief Initializes Configuration Menu. * @param None * @retval None *//* ... */ static void ConfigurationMenu_Init(void) { BSP_LCD_SetTextColor(LCD_COLOR_GREEN); BSP_LCD_DisplayStringAtLine(13, (uint8_t *)" "); BSP_LCD_DisplayStringAtLine(14, (uint8_t *)"[User Key] to switch menu "); BSP_LCD_DisplayStringAtLine(15, (uint8_t *)"[Joystick Left/Right] to change settings "); BSP_LCD_DisplayStringAtLine(16, (uint8_t *)"[Joystick Up/Down] to change settings items"); CDC_ChangeSelectMode(CDC_SELECT_CONFIG); }{ ... } /** * @brief Sets the CDC demo initial values. * @param None * @retval None *//* ... */ static void InitSettingsItems(void) { /*Initialize baud rate index accordingly */ switch(LineCoding.b.dwDTERate) { case 2400: CdcSettingsState.settings.BaudRateIdx = 0; break; case 2400: case 4800: CdcSettingsState.settings.BaudRateIdx = 1; break; case 4800: case 9600: CdcSettingsState.settings.BaudRateIdx = 2; break; case 9600: case 19200: CdcSettingsState.settings.BaudRateIdx = 3; break; case 19200: case 38400: CdcSettingsState.settings.BaudRateIdx = 4; break; case 38400: case 57600: CdcSettingsState.settings.BaudRateIdx = 5; break; case 57600: case 115200: CdcSettingsState.settings.BaudRateIdx = 6; break; case 115200: case 230400: CdcSettingsState.settings.BaudRateIdx = 7; break; case 230400: case 460800: CdcSettingsState.settings.BaudRateIdx = 8; break; case 460800: case 921600: CdcSettingsState.settings.BaudRateIdx = 9; break; case 921600: default: break;default }switch (LineCoding.b.dwDTERate) { ... } /*Initialize data bits index accordingly */ switch(LineCoding.b.bDataBits) { case 5: CdcSettingsState.settings.DataBitsIdx = 0; break; case 5: case 6: CdcSettingsState.settings.DataBitsIdx = 1; break; case 6: case 7: CdcSettingsState.settings.DataBitsIdx = 2; break; case 7: case 8: CdcSettingsState.settings.DataBitsIdx = 3; break; case 8: default: break;default }switch (LineCoding.b.bDataBits) { ... } /*Initialize stop bits index accordingly */ switch(LineCoding.b.bCharFormat) { case 1: CdcSettingsState.settings.StopBitsIdx = 0; break; case 1: case 2: CdcSettingsState.settings.StopBitsIdx = 1; break; case 2: default: break;default }switch (LineCoding.b.bCharFormat) { ... } /* Initialize parity index accordingly */ switch(LineCoding.b.bParityType) { case 0: CdcSettingsState.settings.ParityIdx = 0; break; case 0: case 1: CdcSettingsState.settings.ParityIdx = 1; break; case 1: case 2: CdcSettingsState.settings.ParityIdx = 2; break; case 2: default: break;default }switch (LineCoding.b.bParityType) { ... } Prev_BaudRateIdx = CdcSettingsState.settings.BaudRateIdx; Prev_DataBitsIdx = CdcSettingsState.settings.DataBitsIdx; Prev_ParityIdx = CdcSettingsState.settings.StopBitsIdx; Prev_StopBitsIdx = CdcSettingsState.settings.ParityIdx; PrevSelect = 0; }{ ... } /** * @brief Manages the setting menu on the screen. * @param item: Selected item to be highlighted * @retval None *//* ... */ void CDC_SelectSettingsItem(uint8_t item) { uint8_t str_temp[40]; BSP_LCD_SetTextColor(LCD_COLOR_WHITE); switch (item) { case 0: { BSP_LCD_SetBackColor(LCD_COLOR_MAGENTA); BSP_LCD_DisplayStringAtLine(9, (uint8_t *)MSG_BITS_PER_SECOND); if(LineCoding.b.dwDTERate <= 9600) sprintf((char *)str_temp, " %lu", LineCoding.b.dwDTERate); else if(LineCoding.b.dwDTERate <= 57600) sprintf((char *)str_temp, " %lu", LineCoding.b.dwDTERate); else sprintf((char *)str_temp, " %lu", LineCoding.b.dwDTERate); BSP_LCD_DisplayStringAtLine(9, str_temp); /* Display the data bits */ BSP_LCD_SetBackColor(LCD_COLOR_BLUE); BSP_LCD_DisplayStringAtLine(10, (uint8_t *)MSG_DATA_BITS); sprintf((char *)str_temp, " %d", LineCoding.b.bDataBits); BSP_LCD_DisplayStringAtLine(10, str_temp); /* Display the parity bits */ BSP_LCD_DisplayStringAtLine(11, (uint8_t *)MSG_PARITY); if(LineCoding.b.bParityType == 2) sprintf((char *)str_temp, " %s", ParityArray[LineCoding.b.bParityType]); else sprintf((char *)str_temp, " %s", ParityArray[LineCoding.b.bParityType]); BSP_LCD_DisplayStringAtLine(11, str_temp); /* Display the Stop bits */ BSP_LCD_DisplayStringAtLine(12, (uint8_t *)MSG_STOP_BITS); sprintf((char *)str_temp, " %s", StopBitsArray[LineCoding.b.bCharFormat]); BSP_LCD_DisplayStringAtLine(12, str_temp); ...} break; case 0: case 1: { BSP_LCD_SetBackColor(LCD_COLOR_BLUE); BSP_LCD_DisplayStringAtLine(9, (uint8_t *)MSG_BITS_PER_SECOND); if(LineCoding.b.dwDTERate <= 9600) sprintf((char *)str_temp, " %lu", LineCoding.b.dwDTERate); else if(LineCoding.b.dwDTERate <= 57600) sprintf((char *)str_temp, " %lu", LineCoding.b.dwDTERate); else sprintf((char *)str_temp, " %lu", LineCoding.b.dwDTERate); BSP_LCD_DisplayStringAtLine(9, str_temp); BSP_LCD_DisplayStringAtLine(9, str_temp); /*Display the data bits*/ BSP_LCD_SetBackColor(LCD_COLOR_MAGENTA); BSP_LCD_DisplayStringAtLine(10, (uint8_t *)MSG_DATA_BITS); sprintf((char *)str_temp, " %d", LineCoding.b.bDataBits); BSP_LCD_DisplayStringAtLine(10, str_temp); /* Display the parity bits */ BSP_LCD_SetBackColor(LCD_COLOR_BLUE); BSP_LCD_DisplayStringAtLine(11, (uint8_t *)MSG_PARITY); if(LineCoding.b.bParityType == 2) sprintf((char *)str_temp, " %s", ParityArray[LineCoding.b.bParityType]); else sprintf((char *)str_temp, " %s", ParityArray[LineCoding.b.bParityType]); BSP_LCD_DisplayStringAtLine(11, str_temp); /* Display the Stop bits */ BSP_LCD_DisplayStringAtLine(12, (uint8_t *)MSG_STOP_BITS); sprintf((char *)str_temp, " %s", StopBitsArray[LineCoding.b.bCharFormat]); BSP_LCD_DisplayStringAtLine(12, str_temp); ...} break; case 1: case 2: { BSP_LCD_SetBackColor(LCD_COLOR_BLUE); BSP_LCD_DisplayStringAtLine(9, (uint8_t *)MSG_BITS_PER_SECOND); if(LineCoding.b.dwDTERate <= 9600) sprintf((char *)str_temp, " %lu", LineCoding.b.dwDTERate); else if(LineCoding.b.dwDTERate <= 57600) sprintf((char *)str_temp, " %lu", LineCoding.b.dwDTERate); else sprintf((char *)str_temp, " %lu", LineCoding.b.dwDTERate); BSP_LCD_DisplayStringAtLine(9, str_temp); /* Display the data bits */ BSP_LCD_DisplayStringAtLine(10, (uint8_t *)MSG_DATA_BITS); sprintf((char *)str_temp, " %d", LineCoding.b.bDataBits); BSP_LCD_DisplayStringAtLine(10, str_temp); /* Display the parity bits */ BSP_LCD_SetBackColor(LCD_COLOR_MAGENTA); BSP_LCD_DisplayStringAtLine(11, (uint8_t *)MSG_PARITY); if(LineCoding.b.bParityType == 2) sprintf((char *)str_temp, " %s", ParityArray[LineCoding.b.bParityType]); else sprintf((char *)str_temp, " %s", ParityArray[LineCoding.b.bParityType]); BSP_LCD_DisplayStringAtLine(11, str_temp); /* Display the Stop bits */ BSP_LCD_SetBackColor(LCD_COLOR_BLUE); BSP_LCD_DisplayStringAtLine(12, (uint8_t *)MSG_STOP_BITS); sprintf((char *)str_temp, " %s", StopBitsArray[LineCoding.b.bCharFormat]); BSP_LCD_DisplayStringAtLine(12, str_temp); ...} break; case 2: case 3: { BSP_LCD_SetBackColor(LCD_COLOR_BLUE); BSP_LCD_DisplayStringAtLine(9, (uint8_t *)MSG_BITS_PER_SECOND); if(LineCoding.b.dwDTERate <= 9600) sprintf((char *)str_temp, " %lu", LineCoding.b.dwDTERate); else if(LineCoding.b.dwDTERate <= 57600) sprintf((char *)str_temp, " %lu", LineCoding.b.dwDTERate); else sprintf((char *)str_temp, " %lu", LineCoding.b.dwDTERate); BSP_LCD_DisplayStringAtLine(9, str_temp); BSP_LCD_DisplayStringAtLine(9, str_temp); /* Display the data bits */ BSP_LCD_DisplayStringAtLine(10, (uint8_t *)MSG_DATA_BITS); sprintf((char *)str_temp, " %d", LineCoding.b.bDataBits); BSP_LCD_DisplayStringAtLine(10, str_temp); /* Display the parity bits */ BSP_LCD_DisplayStringAtLine(11, (uint8_t *)MSG_PARITY); if(LineCoding.b.bParityType == 2) sprintf((char *)str_temp, " %s", ParityArray[LineCoding.b.bParityType]); else sprintf((char *)str_temp, " %s", ParityArray[LineCoding.b.bParityType]); BSP_LCD_DisplayStringAtLine(11, str_temp); /* Display the Stop bits */ BSP_LCD_SetBackColor(LCD_COLOR_MAGENTA); BSP_LCD_DisplayStringAtLine(12, (uint8_t *)MSG_STOP_BITS); sprintf((char *)str_temp, " %s", StopBitsArray[LineCoding.b.bCharFormat]); BSP_LCD_DisplayStringAtLine(12, str_temp); ...} break; case 3: default: BSP_LCD_SetBackColor(LCD_COLOR_BLUE); BSP_LCD_DisplayStringAtLine(9, (uint8_t *)MSG_BITS_PER_SECOND); if(LineCoding.b.dwDTERate <= 9600) sprintf((char *)str_temp, " %lu", LineCoding.b.dwDTERate); else if(LineCoding.b.dwDTERate <= 57600) sprintf((char *)str_temp, " %lu", LineCoding.b.dwDTERate); else sprintf((char *)str_temp, " %lu", LineCoding.b.dwDTERate); BSP_LCD_DisplayStringAtLine(9, str_temp); BSP_LCD_DisplayStringAtLine(9, str_temp); /* Display the data bits */ BSP_LCD_DisplayStringAtLine(10, (uint8_t *)MSG_DATA_BITS); sprintf((char *)str_temp, " %d", LineCoding.b.bDataBits); BSP_LCD_DisplayStringAtLine(10, str_temp); /* Display the parity bits */ BSP_LCD_DisplayStringAtLine(11, (uint8_t *)MSG_PARITY); if(LineCoding.b.bParityType == 2) sprintf((char *)str_temp, " %s", ParityArray[LineCoding.b.bParityType]); else sprintf((char *)str_temp, " %s", ParityArray[LineCoding.b.bParityType]); BSP_LCD_DisplayStringAtLine(11, str_temp); /* Display the Stop bits */ BSP_LCD_DisplayStringAtLine(12, (uint8_t *)MSG_STOP_BITS); sprintf((char *)str_temp, " %s", StopBitsArray[LineCoding.b.bCharFormat]); BSP_LCD_DisplayStringAtLine(12, str_temp); break;default }switch (item) { ... } }{ ... } /** * @brief Adjusts CDC configuration setting Menu. * @param None * @retval None *//* ... */ void CDC_AdjustSettingMenu(void) { uint8_t str_temp[40]; BSP_LCD_SetBackColor(LCD_COLOR_MAGENTA); if(CdcSettingsState.select != PrevSelect) { PrevSelect = CdcSettingsState.select; CDC_SelectSettingsItem(CdcSettingsState.select); }if (CdcSettingsState.select != PrevSelect) { ... } if(CdcSettingsState.settings.BaudRateIdx != Prev_BaudRateIdx) { Prev_BaudRateIdx = CdcSettingsState.settings.BaudRateIdx; if(BaudRateValue[CdcSettingsState.settings.BaudRateIdx] <= 9600) sprintf((char *)str_temp, " %lu", BaudRateValue[CdcSettingsState.settings.BaudRateIdx]); else if(BaudRateValue[CdcSettingsState.settings.BaudRateIdx] <= 57600) sprintf((char *)str_temp, " %lu", BaudRateValue[CdcSettingsState.settings.BaudRateIdx]); else sprintf((char *)str_temp, " %lu", BaudRateValue[CdcSettingsState.settings.BaudRateIdx]); BSP_LCD_DisplayStringAtLine(9, str_temp); LineCoding.b.dwDTERate = BaudRateValue[CdcSettingsState.settings.BaudRateIdx]; }if (CdcSettingsState.settings.BaudRateIdx != Prev_BaudRateIdx) { ... } if(CdcSettingsState.settings.DataBitsIdx != Prev_DataBitsIdx) { Prev_DataBitsIdx = CdcSettingsState.settings.DataBitsIdx; sprintf((char *)str_temp, " %d", DataBitsValue[CdcSettingsState.settings.DataBitsIdx]); BSP_LCD_DisplayStringAtLine(10, str_temp); LineCoding.b.bDataBits = DataBitsValue[CdcSettingsState.settings.DataBitsIdx]; }if (CdcSettingsState.settings.DataBitsIdx != Prev_DataBitsIdx) { ... } if(CdcSettingsState.settings.ParityIdx != Prev_ParityIdx) { Prev_ParityIdx = CdcSettingsState.settings.ParityIdx; if(CdcSettingsState.settings.ParityIdx == 2) sprintf((char *)str_temp, " %s", (uint8_t *)ParityArray[CdcSettingsState.settings.ParityIdx]); else sprintf((char *)str_temp, " %s", (uint8_t *)ParityArray[CdcSettingsState.settings.ParityIdx]); BSP_LCD_DisplayStringAtLine(11, str_temp); LineCoding.b.bParityType = CdcSettingsState.settings.ParityIdx; }if (CdcSettingsState.settings.ParityIdx != Prev_ParityIdx) { ... } if(CdcSettingsState.settings.StopBitsIdx!= Prev_StopBitsIdx) { Prev_StopBitsIdx = CdcSettingsState.settings.StopBitsIdx; sprintf((char *)str_temp, " %s", StopBitsArray[CdcSettingsState.settings.StopBitsIdx]); BSP_LCD_DisplayStringAtLine(12, str_temp); LineCoding.b.bCharFormat = CdcSettingsState.settings.StopBitsIdx; }if (CdcSettingsState.settings.StopBitsIdx!= Prev_StopBitsIdx) { ... } BSP_LCD_SetBackColor(LCD_COLOR_BLUE); }{ ... } /** * @brief Probes the CDC Settings joystick state. * @param state: Joystick state * @retval None *//* ... */ void CDC_Settings_ProbeKey(JOYState_TypeDef state) { /* Handle Configuration inputs */ /**** Vertical selection ****/ if((state == JOY_UP) && (CdcSettingsState.select > 0)) { CdcSettingsState.select --; }if ((state == JOY_UP) && (CdcSettingsState.select > 0)) { ... } else if((state == JOY_DOWN) && (CdcSettingsState.select < 3)) { CdcSettingsState.select ++; }else if ((state == JOY_DOWN) && (CdcSettingsState.select < 3)) { ... } /**** Horizontal selection ****/ else if(state == JOY_RIGHT) { if((CdcSettingsState.select == 0) && (CdcSettingsState.settings.BaudRateIdx < 9)) { CdcSettingsState.settings.BaudRateIdx ++; }if ((CdcSettingsState.select == 0) && (CdcSettingsState.settings.BaudRateIdx < 9)) { ... } if((CdcSettingsState.select == 1) && (CdcSettingsState.settings.DataBitsIdx < 3 )) { CdcSettingsState.settings.DataBitsIdx ++; }if ((CdcSettingsState.select == 1) && (CdcSettingsState.settings.DataBitsIdx < 3 )) { ... } if((CdcSettingsState.select == 2) && (CdcSettingsState.settings.ParityIdx < 2)) { CdcSettingsState.settings.ParityIdx ++; }if ((CdcSettingsState.select == 2) && (CdcSettingsState.settings.ParityIdx < 2)) { ... } if((CdcSettingsState.select == 3) && (CdcSettingsState.settings.StopBitsIdx < 1)) { CdcSettingsState.settings.StopBitsIdx ++; }if ((CdcSettingsState.select == 3) && (CdcSettingsState.settings.StopBitsIdx < 1)) { ... } }else if (state == JOY_RIGHT) { ... } else if(state == JOY_LEFT) { if((CdcSettingsState.select == 0) && (CdcSettingsState.settings.BaudRateIdx > 0)) { CdcSettingsState.settings.BaudRateIdx --; }if ((CdcSettingsState.select == 0) && (CdcSettingsState.settings.BaudRateIdx > 0)) { ... } if((CdcSettingsState.select == 1) && (CdcSettingsState.settings.DataBitsIdx > 0)) { CdcSettingsState.settings.DataBitsIdx --; }if ((CdcSettingsState.select == 1) && (CdcSettingsState.settings.DataBitsIdx > 0)) { ... } if((CdcSettingsState.select == 2) && (CdcSettingsState.settings.ParityIdx > 0)) { CdcSettingsState.settings.ParityIdx --; }if ((CdcSettingsState.select == 2) && (CdcSettingsState.settings.ParityIdx > 0)) { ... } if((CdcSettingsState.select == 3) && (CdcSettingsState.settings.StopBitsIdx > 0)) { CdcSettingsState.settings.StopBitsIdx --; }if ((CdcSettingsState.select == 3) && (CdcSettingsState.settings.StopBitsIdx > 0)) { ... } }else if (state == JOY_LEFT) { ... } }{ ... } /** * @brief Informs user that Settings have been changed. * @param phost: Host handle * @retval None *//* ... */ void USBH_CDC_LineCodingChanged(USBH_HandleTypeDef *phost) { LCD_DbgLog("New CDC Settings applied!\n"); }{ ... }
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