fb681a4b69
- dispauto [on|off]: 关掉自动显示扫描, 7 脚置高阻, 供手动控制 - dispset <pin1-7> [0|1|z]: 手工驱动数码管 pin1~7 (pin1=PB0..pin7=PA6) - app_display.c: g_disp_auto + display_auto_set/get + display_pin_map, display_task 自动关时释放管脚并让出 - 仅 APP 改动, Boot 不动 (仍 V1.00.07) - docs/开发日志.md: 新增 §61
71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
/**
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* @file app_display.h
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* @brief YF30137 7-segment display driver.
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*
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* The YF30137 is a 7-pin Charlieplexed LED module:
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* - 5 seven-segment digits (DIG1..DIG5, segments A..G)
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* - DIG6 holds two single indicators: A6 = "deg F", B6 = decimal point
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*
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* A dedicated FreeRTOS task (display_task) scans the module continuously.
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* Every other task updates the display simply by calling display_set();
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* the scan task only reads the global state and never blocks callers.
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*/
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#ifndef __APP_DISPLAY_H__
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#define __APP_DISPLAY_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#include "n32wb03x.h"
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/* Display type / unit (controls the DIG6 "deg F" indicator A6) */
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#define DISP_TYPE_CELSIUS 0u /* degree C: A6 off */
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#define DISP_TYPE_FAHRENHEIT 1u /* degree F: A6 on */
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/* Number base for the displayed value */
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#define DISP_BASE_DECIMAL 10u
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#define DISP_BASE_HEX 16u
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/**
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* @brief Update what the display should show (read by the scan task).
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* @param value floating value to display
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* @param type DISP_TYPE_CELSIUS / DISP_TYPE_FAHRENHEIT
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* @param base DISP_BASE_DECIMAL (1 decimal place) / DISP_BASE_HEX
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* @note Non-blocking; may be called from any task context.
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*/
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void display_set(float value, uint8_t type, uint8_t base);
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/**
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* @brief Display driver FreeRTOS task: Charlieplexing scan loop, never returns.
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*/
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void display_task(void *pvParameters);
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/**
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* @brief Enable (1) / disable (0) the automatic Charlieplexing scan.
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* When disabled the scan task releases all 7 pins to high-impedance
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* so another task (e.g. the "dispset" CLI) can drive them manually.
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*/
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void display_auto_set(uint8_t on);
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/**
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* @brief @return 1 when the automatic scan is enabled.
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*/
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uint8_t display_auto_get(void);
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/**
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* @brief Map a display pin number (1..7) to its GPIO port + pin mask.
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* @param pin_no display pin number 1..7 (pin1=PB0 ... pin7=PA6)
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* @param port out: GPIO port
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* @param pin out: GPIO pin mask
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* @return 1 on success, 0 when pin_no is out of range.
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*/
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int display_pin_map(uint8_t pin_no, GPIO_Module** port, uint16_t* pin);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __APP_DISPLAY_H__ */
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