STM8L-discovery--RTC-demo.rar_STM8L _STM8L-DISCOVERY_stm8 实时时钟_s

/** ****************************************************************************** * @file stm8l_discovery_lcd.c * @author Microcontroller Division * @version V1.2.0 * @date 09/2010 * @brief This file includes driver for the glass LCD Module mounted on * STM8L1526 discovery board MB915A. ****************************************************************************** * @copy * * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. * * <h2><center>&copy; COPYRIGHT 2010 STMicroelectronics</center></h2> */ /* Includes ------------------------------------------------------------------*/ #include "stm8l_discovery_lcd.h" #include "discover_board.h" /* this variable can be used for accelerate the scrolling exit when push user button */ bool KeyPressed = FALSE; /* ========================================================================= LCD MAPPING ========================================================================= A _ ---------- COL |_| |\ |J /| F| H | K |B _ | \ | / | COL |_| --G-- --M-- | /| \ | E| Q | N |C _ | / |P \| DP |_| ----------- D An LCD character coding is based on the following matrix: { E , D , F , COL } { M , C , G , H } { B , A , B , A } { G , F , K , J } The character 'A' for example is: ------------------------------- LSB { 1 , 0 , 0 , 0 } { 1 , 1 , 0 , 0 } { 1 , 1 , 0 , 0 } MSB { 1 , 1 , 0 , 0 } ------------------- 'A' = F E 0 0 hexa */ /* Constant table for cap characters 'A' --> 'Z' */ const uint16_t CapLetterMap[26]= { /* A B C D E F G H I */ 0xFE00,0x6711,0x1d00,0x4711,0x9d00,0x9c00,0x3f00,0xfa00,0x0011, /* J K L M N O P Q R */ 0x5300,0x9844,0x1900,0x5a42,0x5a06,0x5f00,0xFC00,0x5F04,0xFC04, /* S T U V W X Y Z */ 0xAF00,0x0411,0x5b00,0x18c0,0x5a84,0x00c6,0x0052,0x05c0 }; /* Constant table for number '0' --> '9' */ const uint16_t NumberMap[10]= { /* 0 1 2 3 4 5 6 7 8 9 */ 0x5F00,0x4200,0xF500,0x6700,0xEa00,0xAF00,0xBF00,0x04600,0xFF00,0xEF00 }; /* LCD BAR status: We don't write directly in LCD RAM for save the bar setting */ uint8_t t_bar[2]={0x0,0X0}; static void LCD_Conv_Char_Seg(uint8_t* c,bool point,bool column,uint8_t* digit); /** * @brief Configures the LCD GLASS relative GPIO port IOs and LCD peripheral. * @param None * @retval None */ void LCD_GLASS_Init(void) { /* Enable LCD/RTC clock */ CLK_PeripheralClockConfig(CLK_Peripheral_RTC, ENABLE); CLK_PeripheralClockConfig(CLK_Peripheral_LCD, ENABLE); #ifdef USE_LSE CLK_RTCClockConfig(CLK_RTCCLKSource_LSE, CLK_RTCCLKDiv_1); #else CLK_RTCClockConfig(CLK_RTCCLKSource_LSI, CLK_RTCCLKDiv_1); #endif /* Initialize the LCD */ LCD_Init(LCD_Prescaler_1, LCD_Divider_31, LCD_Duty_1_4, LCD_Bias_1_3, LCD_VoltageSource_Internal); /* Mask register For declare the segements used. in the Discovery we use 0 to 23 segments. */ LCD_PortMaskConfig(LCD_PortMaskRegister_0, 0xFF); LCD_PortMaskConfig(LCD_PortMaskRegister_1, 0xFF); LCD_PortMaskConfig(LCD_PortMaskRegister_2, 0xff); /* To set contrast to mean value */ LCD_ContrastConfig(LCD_Contrast_3V0); LCD_DeadTimeConfig(LCD_DeadTime_0); LCD_PulseOnDurationConfig(LCD_PulseOnDuration_1); /* Enable LCD peripheral */ LCD_Cmd(ENABLE); } /** * @brief LCD contrast setting min-->max-->min by pressing user button * @param None * @retval None */ void LCD_contrast() { LCD_Contrast_TypeDef contrast; /* To get the actual contrast value in register */ contrast = (LCD_Contrast_TypeDef) (LCD->CR2 & LCD_Contrast_3V3); while ((GPIOC->IDR & USER_GPIO_PIN) == 0x0) { contrast+=2; if (contrast>LCD_Contrast_3V3) contrast=LCD_Contrast_2V6; LCD_ContrastConfig(contrast); delay_ms(100); } } /** * @brief Setting bar on LCD, writes bar value in LCD frame buffer * @param None * @retval None */ void LCD_bar() { /* bar0 bar2 */ LCD->RAM[LCD_RAMRegister_11] &= 0x5f; LCD->RAM[LCD_RAMRegister_11] |= t_bar[0]&0xa0; /*bar1 bar3 */ LCD->RAM[LCD_RAMRegister_8] &= 0xf5; LCD->RAM[LCD_RAMRegister_8] |= t_bar[1]&0x0a; } /** * @brief Converts an ascii char to the a LCD digit. * @param c: a char to display. * @param point: a point to add in front of char * This parameter can be: POINT_OFF or POINT_ON * @param column : flag indicating if a column has to be add in front * of displayed character. * This parameter can be: COLUMN_OFF or COLUMN_ON. * @param digit array with segment * @retval None */ static void LCD_Conv_Char_Seg(uint8_t* c,bool point,bool column, uint8_t* digit) { uint16_t ch = 0 ; uint8_t i,j; switch (*c) { case ' ' : ch = 0x00; break; case '*': ch = star; break; case '?': ch = C_UMAP; break; case 'm' : ch = C_mMap; break; case 'n' : ch = C_nMap; break; case '-' : ch = C_minus; break; case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': ch = NumberMap[*c-0x30]; break; default: /* The character c is one letter in upper case*/ if ( (*c < 0x5b) && (*c > 0x40) ) { ch = CapLetterMap[*c-'A']; } /* The character c is one letter in lower case*/ if ( (*c <0x7b) && ( *c> 0x60) ) { ch = CapLetterMap[*c-'a']; } break; } /* Set the digital point can be displayed if the point is on */ if (point) { ch |= 0x0008; } /* Set the "COL" segment in the character that can be displayed if the column is on */ if (column) { ch |= 0x0020; } for (i = 12,j=0 ;j<4; i-=4,j++) { digit[j] = (ch >> i) & 0x0f; //To isolate the less signifiant dibit } } /** * @brief This function writes a char in the LCD frame buffer. * @param ch: the character to dispaly. * @param point: a point to add in front of char * This parameter can be: POINT_OFF or POINT_ON * @param column: flag indicating if a column has to be add in front * of displayed character. * This parameter can be: COLUMN_OFF or COLUMN_ON. * @param position: position in the LCD of the caracter to write [0:7] * @retval None * @par Required preconditions: The LCD should be cleared before to start the * write operation. */ void LCD_GLASS_WriteChar(uint8_t* ch, bool point, bool column, uint8_t position) { uint8_t digit[4]; /* Digit frame buffer */ /* To convert displayed character in segment in array digit */ LCD_Conv_Char_Seg(ch,point,column,digit); switch (position) { /* Position 1 on LCD (Digit1)*/ case 1: LCD->RAM[LCD_RAMRegister_0] &= 0x0