' HL-K18 with PIC18F46K22 and I2CLib (DS1624)
' By COS, 2025/07/19, PIC18 OSHONSOFT v5.89
' *************************************************************************************
' HL-K18 Jumper Configuration:
' General Jumpers on HL-K18: VCC, GND, PGC, PGD, OSC2, OSC1, VPP
' RS232 Interface: TX (Transmit), RX (Receive), BZ (Buzzer)
' Specific Jumpers for this setup: NONE
' Switches S2 and S4 should both be set to OFF.
' PICKIT2 Jumpers on HL-K18: Not used, external programmer.
'
' Description:
' DS1624 with thermometer and eeprom.
' *************************************************************************************
' Configuration of microcontroller fuses
' Setting up internal oscillator with 4x PLL to achieve 64MHz system clock,
' MCLR enabled For external reset.

#define CONFIG1L = 0x00  ' Low Power Timer and memory settings
#define CONFIG1H = 0x38  ' External oscillator with PLL enabled
#define CONFIG2L = 0x1E  ' Brown-out Reset, Power-Up Timer
#define CONFIG2H = 0x3C  ' Watchdog Timer setup
#define CONFIG3L = 0x00  ' Low-voltage programming disabled
#define CONFIG3H = 0xBF  ' Port configuration options
#define CONFIG4L = 0x80  ' Stack overflow and underflow reset enabled
#define CONFIG4H = 0x00  ' Additional configuration bits
#define CONFIG5L = 0x0F  ' Code protection
#define CONFIG5H = 0xC0  ' Data EEPROM code protection
#define CONFIG6L = 0x0F  ' Write protection settings
#define CONFIG6H = 0xE0  ' Configuration protection bits
#define CONFIG7L = 0x0F  ' Boot block protection settings
#define CONFIG7H = 0x40  ' Configuration for block protection

' General configuration
#define CLOCK_FREQUENCY = 64 ' System clock frequency in MHz
#define SINGLE_DECIMAL_PLACES = 1 ' Number of decimal places
#define STRING_MAX_LENGTH = 35 ' Maximum length for string variables
'#define SIMULATION_WAITMS_VALUE = 1 'Activate only in simulation.
' -------------------------------------------------------------------------
'Include "_Pic18F46K22Lib.bas"
'Include "CLib.bas"
Include "I2CLib.bas"
Include "I2C_Scan.bas"
Include "DS1624_Lib.bas"
' -------------------------------------------------------------------------
' Main program
main:
	'Clock internal 16Mhz x 4PLL.
	OSCCON = %01110000 	'Call _Setup_Oscillator(_OSC_16MHz_HF)
	OSCTUNE.PLLEN = 1 	'Call _SET_PLL4(_PLL_ON)
	RCON.IPEN = 0		'Call _Interrupts_Mode(_DISABLE_PRIORITY)
	'Call _SlewRate(_Enable) 'Enable by default.
	'**********************************************************************
    AllDigital  ' Set all pins to digital mode

    ' Set all ports as input
    TRISA = 0xFF  ' Set all PORTA pins as input
    TRISB = 0xFF  ' Set all PORTB pins as input
    TRISC = 0xFF  ' Set all PORTC pins as input
    TRISD = 0xFF  ' Set all PORTD pins as input
    TRISE = 0xFF  ' Set all PORTE pins as input

    ' ---------------------------------------------------------------------
    ' Initialize UART at 115200 baud rate (using RC6 for TX and RC7 for RX)
    UART1_Init 115200
    WaitMs 1  ' Delay for stabilization
    ' ---------------------------------------------------------------------
    ' Send initial message through UART
    UART1_Write 0x0C ' ASCII control character to clear screen
    WaitMs 100 ' Wait
    UART1_Write "Ready", CrLf  ' Send "Ready" message with carriage return and line feed
	WaitMs 500 ' Wait
	' Initialize I2C 100kHZ (64Mhz)
	Init_I2C(100, 64)
	WaitMs 5

	TRISA.4 = 0
	Symbol Led = LATA.4

	UART_Write "PCB EB_E2Prom I2C addresses:", CrLf
	I2C_Scan()

	Dim temp As Single

	UART_Write "Temperature with DS1624:", CrLf
	DS1624_Config_Temp(1) 	' Reading on demand

	While True
		DS1624_Init_Temp()
		WaitMs 1000 		' Minimum time between readings allowed = 600mSec.
		temp = DS1624_Rd_Temp()
		UART_Write #temp, "ºC   ", Cr
	Wend

	' E2Prom
	'Dim x As Byte
	'For x = 255 To 0 Step -1
		'DS1624_Wr_E2Prom(x, 255 - x)
	'Next x

	'For x = 0 To 255
		'UART_Write #DS1624_Rd_E2Prom(x), CrLf
	'Next x

End