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159 lines
4.0 KiB
C
159 lines
4.0 KiB
C
/*********************************************************************************
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* @file wm_lcd.c
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* @author 杭州峰海科技有限公司
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* @version V1.0
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* @date 20211027
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* @brief linailiang
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*
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* Copyright (c) 2021 Hangzhou Fenghai Technology Co., Ltd. All rights reserved.
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*********************************************************************************/
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#include "wm_lcd.h"
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/*****************************************************************************
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* @brief Initialize LCD Frame Counter
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*
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* @param freq: LCD reference refresh frequency in Hz
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*/
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void HAL_LCD_Ratio(uint8_t comNum, uint16_t freq)
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{
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if (freq == 0) freq = 60;
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LCD->FRAMECNT = (LCD_RTC_CLK/freq)/comNum;
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}
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/*****************************************************************************
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* @brief select the voltage of LCD module
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*
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*/
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void HAL_LCD_VlcdSet(LCD_VlcdDef vlcd)
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{
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LCD->CTRL &= ~LCD_VLCD_MASK;
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LCD->CTRL |= vlcd;
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}
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/*****************************************************************************
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* @brief set the duty of LCD module
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*
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*/
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void HAL_LCD_DutySet(LCD_DutyDef duty)
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{
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LCD->CTRL &= ~LCD_DUTY_MASK;
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LCD->CTRL |= duty;
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}
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/*****************************************************************************
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* @brief set the bias of LCD module
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*
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*/
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void HAL_LCD_BiasSet(LCD_BiasDef bias)
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{
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LCD->CTRL &= ~LCD_BIAS_MASK;
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LCD->CTRL |= bias;
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}
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/*****************************************************************************
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* @brief set LCD com & seg
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*
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*/
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void HAL_LCD_ComSegEnable(uint32_t com, uint32_t seg)
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{
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LCD->COM_EN = com;
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LCD->SEG_EN = seg;
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}
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/*****************************************************************************
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* @brief Turn on or clear a segment
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*
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* @param com: Which COM line to update
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* val: which field to change
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*/
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void HAL_LCD_ShowSeg(LCD_ComDef com, uint32_t val)
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{
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switch(com)
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{
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case LCD_RAM0: LCD->RAM0 = val; break;
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case LCD_RAM1: LCD->RAM1 = val; break;
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case LCD_RAM2: LCD->RAM2 = val; break;
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case LCD_RAM3: LCD->RAM3 = val; break;
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case LCD_RAM4: LCD->RAM4 = val; break;
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case LCD_RAM5: LCD->RAM5 = val; break;
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case LCD_RAM6: LCD->RAM6 = val; break;
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case LCD_RAM7: LCD->RAM7 = val; break;
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default: break;
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}
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}
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/*****************************************************************************
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* @brief set LCD digit module
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*
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*/
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void HAL_LCD_DigitPower(LCD_StaDef status)
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{
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if(status == LCD_ENABLE) LCD->CTRL |= LCD_EN;
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else LCD->CTRL &= ~LCD_EN;
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}
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/*****************************************************************************
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* @brief set LCD analog module
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*
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*/
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void HAL_LCD_AnalogPower(LCD_StaDef status)
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{
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if(status == LCD_ENABLE) LCD->CTRL |= LCD_VDD_ON;
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else LCD->CTRL &= ~LCD_VDD_ON;
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}
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/*****************************************************************************
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* @brief initialize the lcd module
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* @param comNum: COM line 4 - 8
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* seg: 0-31
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*/
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void HAL_LCD_Init(uint8_t comNum, uint32_t seg)
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{
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uint32_t com;
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switch(comNum)
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{
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case 4: com = 0x0f; break; // 4 COM
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case 5: com = 0x1f; break; // 5 COM
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case 6: com = 0x3f; break; // 6 COM
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case 7: com = 0x7f; break; // 7 COM
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case 8: com = 0xff; break; // 8 COM
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default:com = 0x0f; break; // 4 COM
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}
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__HAL_RCC_LCD_CLK_ENABLE(); // 确保打开LCD时钟，该宏定义需要在wm_rcc.h中添加，LCD默认是打开时钟的
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HAL_LCD_AnalogPower(LCD_ENABLE); // 先打开模拟部分电源
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HAL_Delay(5); // 适当延时，否则运行不正常！
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HAL_LCD_VlcdSet(VLCD33); // 配置显示参数
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HAL_LCD_DutySet(DUTY_ONEFOURTH);
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HAL_LCD_BiasSet(BIAS_ONETHIRD);
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HAL_LCD_Ratio(comNum, 60);
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HAL_Delay(5); // 适当延时，否则运行不正常！
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HAL_LCD_ShowSeg(LCD_RAM0, 0x0000); // 清除显示内容
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HAL_LCD_ShowSeg(LCD_RAM1, 0x0000);
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HAL_LCD_ShowSeg(LCD_RAM2, 0x0000);
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HAL_LCD_ShowSeg(LCD_RAM3, 0x0000);
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HAL_LCD_ComSegEnable(com, seg); // 打开需要显示的COM与SEG
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HAL_Delay(5);
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HAL_LCD_DigitPower(LCD_ENABLE); // 最好打开数字部分
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HAL_Delay(5);
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}
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