PutcXLCD(ascii_low) // Write the Hours low byte to LCDīCD2ASCII(minutes_time) //Convert BCD Minutes in to ASCII PutcXLCD(ascii_high) // Write the Hours high byte to LCD While( BusyXLCD() ) // Wait till LCD finishes writing dataīCD2ASCII(hour_time) //Convert BCD Hours in to ASCII SetDDRamAddr(0x80) //Choose first location on LCD Seconds_time=Read_DS3232(Seconds) //Read Seconds Minutes_time=Read_DS3232(Minutes) //Read Minutes Unsigned char hour_time,minutes_time,seconds_time,check If(INTCONbits.INT0IF=1)//If RTC generates and Interrupt #pragma config OSC=INTIO67,WDT=OFF,DEBUG=ON,LVP=OFF,IESO=OFF,WRTD=OFF// Use internal Oscillator, Watchdog off, LVP off Unsigned char temp_reading_int,temp_reading_dec,d1,d2,d3 Void conv_temp(unsigned char,unsigned char) //To convert the temperature value from Binary in to Decimal Void BCD2ASCII(unsigned char) //To convert the BCD time value to ASII for LCD Unsigned char Read_DS3232(unsigned char) //Writes to the DS3232.Refer to the datasheet P#17 Void Write_DS3232(unsigned char,unsigned char) //Writes to the DS3232.Refer to the datasheet P#17
Void Init_DS3232(void) //Initializes DS3232 *Function Definitions for user created functions*/ #include//Include the function definitions for the I2C module #include// Include function definitions for built in Delay routines #include// Include function definitions for the External LCD Library library #include// Include files and definitions for the Processor Since the sole purpose of this Demo is toĭemonstrate the I2C library, i have used the square wave featureīut have mentioned the values of the specific registers for generatingĪn Interrupt persecond.Sorry for any inconvinience
#Mplab xc8 lcd library xlcd code#
Even after following the exact code exmaple as enīy MAXIM for generating an Alarm interrupt, the DS3232 model in Proteusĭoes not generate it. There is a flaw in this program due some problem in the DS3232 * Baud Rate Calculation for 100Khz for the I2C bus*/ Pin changes have been made in the provided xlcd.h file. Add all files in the folder in your project.Also present in MCC18 isntallation folder. Replace this xlcd.h in the MCC18>h folder. and the I2C library is documented on P#25. The External LCD Section is documented on P#79 of C18 Libraries Microchips Libraries.It is a clock using the DS3232 with temperature monitoring This is a program that demonstrates the use of I2C Module with
#Mplab xc8 lcd library xlcd download#
Here is the code(requires additional files to be added in the project, download the whole folder from the link): Generate an I2C bus Not acknowledge condition. Generate an I2C bus acknowledge condition. These functions are used to write a byte to the I2Cx bus. WriteI2C(arguments)/ WriteI2Cx(arguments)/ putcI2C(arguments)/ putcI2Cx(arguments): This function is used to read a string of specified length from the I2Cx bus which is operating in master mode. These functions read a byte from the I2Cx bus. This function checks whether there is any data present in the I2C buffer. This function checks for the state of the I2C peripheral and waits until the bus becomes idle. The x is used when multiple I2Cx modules are present. This function is used to configure the SSP module. downloads/en/devicedoc/i2c.pdfįollowing is the list of the I2C functions: Before checking out the code, please read through this document which describes how the I2C protocol is implemented in the PIC18: In the attached file the setting is configured for the connection as shown in the figure below.The I2C functions of the C18 libraries allow us to configure the SSP module in slave as well as master mode. The LCD setting is adjusted manually in the xlcdDef.h file. Attached in this post is the library file needed to get the LCD working. With the introduction of the new MPLAB X and XC8 compiler, some modification to the generated code have to be done to allow it to be used with XC8. On MPLAB v8, there is a tool call application maestro that is able to generate the necessary LCD library for C to work with the device you need. There are numerous library written for using a LCD. LCD can be written to by having only 6 pins, R/W pin is always set to 0 and the device is configured in 4 bit mode. The LCD can be controlled through 3 control pins and 4/8 data pins. The 2x16 character dot matrix liquid crystal display using the Hitachi HD44780 commonly used as a display for micro controller projects.
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