FreeRTOS demo task implementations.
Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
Macros | |
Task configuration | |
| #define | UART_TASK_PRIORITY (tskIDLE_PRIORITY + 3) |
| #define | UART_TASK_DELAY (10 / portTICK_RATE_MS) |
| #define | MAIN_TASK_PRIORITY (tskIDLE_PRIORITY + 2) |
| #define | MAIN_TASK_DELAY (100 / portTICK_RATE_MS) |
| #define | GRAPH_TASK_PRIORITY (tskIDLE_PRIORITY + 1) |
| #define | GRAPH_TASK_DELAY (50 / portTICK_RATE_MS) |
| #define | TERMINAL_TASK_PRIORITY (tskIDLE_PRIORITY + 1) |
| #define | TERMINAL_TASK_DELAY (1000 / portTICK_RATE_MS) |
| #define | ABOUT_TASK_PRIORITY (tskIDLE_PRIORITY + 1) |
| #define | ABOUT_TASK_DELAY (33 / portTICK_RATE_MS) |
Event bits definition | |
| #define | EVENT_DISPLAY_INIT (0x01UL) |
| #define | EVENT_DISPLAY_GRAPH (0x02UL) |
| #define | EVENT_DISPLAY_TERMINAL (0x04UL) |
| #define | EVENT_DISPLAY_ABOUT (0x08UL) |
| #define | EVENT_ALL_BITS (0x0FUL) |
Functions | |
| static void | cdc_rx_handler (uint8_t instance) |
| Interrupt handler for reception from EDBG Virtual COM Port. More... | |
| void | demotasks_init (void) |
| Initialize tasks and resources for demo. More... | |
Tasks for demo | |
| static void | main_task (void *params) |
| Main demo task. More... | |
| static void | graph_task (void *params) |
| Graph task. More... | |
| static void | terminal_task (void *params) |
| Terminal task. More... | |
| static void | about_task (void *params) |
| About task. More... | |
| static void | uart_task (void *params) |
| UART task. More... | |
Menu and display configuration | |
| #define | MENU_HEIGHT 8 |
| Height of menu bar. More... | |
| #define | MENU_ITEM_WIDTH (((GFX_MONO_LCD_WIDTH - (MENU_NUM_ITEMS - 1))) / MENU_NUM_ITEMS) |
| Width per menu item. More... | |
| #define | CANVAS_HEIGHT ((GFX_MONO_LCD_HEIGHT / 2) - (MENU_HEIGHT + 1)) |
| Height of area in which to draw content. More... | |
| #define | CANVAS_WIDTH (GFX_MONO_LCD_WIDTH) |
| Width of area in which to draw content. More... | |
| #define | CANVAS_GRAPH_Y_OFFSET (GFX_MONO_LCD_HEIGHT / 2) |
| Offset of Y-coordinate for display buffer of graph. More... | |
| #define | TERMINAL_LINES (1 + ((CANVAS_HEIGHT - SYSFONT_HEIGHT) / (SYSFONT_HEIGHT + 1))) |
| Character lines on display. More... | |
| #define | TERMINAL_COLUMNS (CANVAS_WIDTH / SYSFONT_WIDTH) |
| Character columns on display. More... | |
| #define | TERMINAL_BUFFER_LINES (1 + TERMINAL_LINES) |
| Character lines in terminal buffer. More... | |
| #define | TERMINAL_BUFFER_COLUMNS (1 + TERMINAL_COLUMNS) |
| Character columns in terminal buffer. More... | |
| enum | menu_items { MENU_ITEM_GRAPH, MENU_ITEM_TERMINAL, MENU_ITEM_ABOUT, MENU_NUM_ITEMS } |
| Available selections in menu. More... | |
Global constants and variables | |
| static const char | menu_items_text [MENU_NUM_ITEMS][6] |
| Labels for menu items. More... | |
| static const char | about_text [] |
| Text to display on about screen. More... | |
| static struct usart_module | cdc_usart |
| Instance for Embedded Debugger (EDBG) Virtual COM Port driver. More... | |
| static uint8_t | graph_noise = 128 |
| Pseudo-random noise for graph task. More... | |
| static uint8_t | terminal_buffer [TERMINAL_BUFFER_LINES][TERMINAL_BUFFER_COLUMNS] |
| Buffer for terminal text. More... | |
| static uint8_t | terminal_line_offset |
| Index of latest terminal line (first to be printed) More... | |
| static xQueueHandle | terminal_in_queue |
| Queue for incoming terminal characters. More... | |
| static xSemaphoreHandle | display_mutex |
| Semaphore to signal busy display. More... | |
| static xSemaphoreHandle | terminal_mutex |
| Semaphore to signal busy terminal buffer. More... | |
| static EventGroupHandle_t | event_group = NULL |
| The event group used. More... | |
| static | OLED1_CREATE_INSTANCE (oled1, OLED1_EXT_HEADER) |
| Instance for OLED1 Xplained Pro LED and button driver. More... | |
1.8.5