HID_RTOS
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Outline
Includes
#include "main.h"
Private define
#define KYBRD_FIRST_COLUMN
#define KYBRD_LAST_COLUMN
#define KYBRD_FIRST_LINE
#define SMALL_FONT_COLUMN_WIDTH
#define SMALL_FONT_LINE_WIDTH
#define KYBRD_LAST_LINE
Private variables
KeybrdCharXpos
KeybrdCharYpos
Private function prototypes
HID_KeyboardMenuProcess()
USR_KEYBRD_Init()
USR_KEYBRD_ProcessData(uint8_t)
Files
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SourceVuSTM32 Libraries and SamplesHID_RTOSSrc/keyboard.c
 
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/** ****************************************************************************** * @file USB_Host/HID_RTOS/Src/keyboard.c * @author MCD Application Team * @brief This file implements the HID keyboard functions ****************************************************************************** * @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 typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ #define KYBRD_FIRST_COLUMN (uint16_t)7 #define KYBRD_LAST_COLUMN (uint16_t)479 #define KYBRD_FIRST_LINE (uint8_t) 100 #define SMALL_FONT_COLUMN_WIDTH 8 #define SMALL_FONT_LINE_WIDTH 15 #define KYBRD_LAST_LINE (uint16_t)200 6 defines Private define/* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ extern HID_DEMO_StateMachine hid_demo; extern uint32_t hid_demo_ready; uint8_t KeybrdCharXpos = 0; uint16_t KeybrdCharYpos = 0; Private variables /* Private function prototypes -----------------------------------------------*/ static void USR_KEYBRD_Init(void); Private function prototypes /* Private functions ---------------------------------------------------------*/ /** * @brief Handles Keyboard Menu. * @param None * @retval None *//* ... */ void HID_KeyboardMenuProcess(void) { if(hid_demo.keyboard_state == HID_KEYBOARD_START) { LCD_LOG_ClearTextZone(); BSP_LCD_ClearStringLine(19); USBH_HID_KeybdInit(&hUSBHost); USR_KEYBRD_Init(); }if (hid_demo.keyboard_state == HID_KEYBOARD_START) { ... } }{ ... } /** * @brief Init Keyboard window. * @param None * @retval None *//* ... */ static void USR_KEYBRD_Init(void) { LCD_LOG_ClearTextZone(); BSP_LCD_SetTextColor(LCD_COLOR_YELLOW); BSP_LCD_DisplayStringAtLine(4, (uint8_t *)"Use Keyboard to type characters: "); BSP_LCD_SetTextColor(LCD_COLOR_WHITE); KeybrdCharXpos = KYBRD_FIRST_LINE; KeybrdCharYpos = KYBRD_FIRST_COLUMN; }{ ... } /** * @brief Processes Keyboard data. * @param data: Keyboard data to be displayed * @retval None *//* ... */ void USR_KEYBRD_ProcessData(uint8_t data) { if(data == '\n') { KeybrdCharYpos = KYBRD_FIRST_COLUMN; /* Increment char X position */ KeybrdCharXpos += SMALL_FONT_LINE_WIDTH; if(KeybrdCharXpos > KYBRD_LAST_LINE) { LCD_LOG_ClearTextZone(); KeybrdCharXpos = KYBRD_FIRST_LINE; KeybrdCharYpos = KYBRD_FIRST_COLUMN; }if (KeybrdCharXpos > KYBRD_LAST_LINE) { ... } }if (data == '\n') { ... } else if(data == '\r') { /* Manage deletion of character and update cursor location */ if(KeybrdCharYpos == KYBRD_FIRST_COLUMN) { /* First character of first line to be deleted */ if(KeybrdCharXpos == KYBRD_FIRST_LINE) { KeybrdCharYpos = KYBRD_FIRST_COLUMN; }if (KeybrdCharXpos == KYBRD_FIRST_LINE) { ... } else { KeybrdCharXpos -= SMALL_FONT_LINE_WIDTH; KeybrdCharYpos = (KYBRD_LAST_COLUMN - SMALL_FONT_COLUMN_WIDTH); }else { ... } }if (KeybrdCharYpos == KYBRD_FIRST_COLUMN) { ... } else { KeybrdCharYpos -= SMALL_FONT_COLUMN_WIDTH; }else { ... } BSP_LCD_DisplayChar(KeybrdCharYpos, KeybrdCharXpos, ' '); }else if (data == '\r') { ... } else { /* Update the cursor position on LCD */ BSP_LCD_DisplayChar(KeybrdCharYpos, KeybrdCharXpos, data); /* Increment char Y position */ KeybrdCharYpos += SMALL_FONT_COLUMN_WIDTH; /* Check if the Y position has reached the last column */ if(KeybrdCharYpos == KYBRD_LAST_COLUMN) { KeybrdCharYpos = KYBRD_FIRST_COLUMN; /* Increment char X position */ KeybrdCharXpos += SMALL_FONT_LINE_WIDTH; }if (KeybrdCharYpos == KYBRD_LAST_COLUMN) { ... } if(KeybrdCharXpos > KYBRD_LAST_LINE) { LCD_LOG_ClearTextZone(); KeybrdCharXpos = KYBRD_FIRST_LINE; /* Start New Display of the cursor position on LCD */ BSP_LCD_DisplayChar(KeybrdCharYpos,KeybrdCharXpos, data); }if (KeybrdCharXpos > KYBRD_LAST_LINE) { ... } }else { ... } }{ ... }
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