I would like to know why my PIC which when I put in to deep sleep does consume more than what is specified by the datasheet. I have connected a precision current meter and found that when I load the code which makes the controller to enter deep sleep it consumes 0.27mA as to the 860nA rating given. I would like to have your insight for the problem. I have done the testing on a PCB with crystal for 16 MHz and for RTCC. Why is it showing this much consumption?
// PIC18F26J50 Configuration Bit Settings #include <p18F26J50.h> // CONFIG1L #pragma config WDTEN = OFF // Watchdog Timer (Disabled - Controlled by SWDTEN bit) #pragma config PLLDIV = 1 // PLL Prescaler Selection bits (No prescale (4 MHz oscillator input drives PLL directly)) #pragma config STVREN = ON // Stack Overflow/Underflow Reset (Enabled) #pragma config XINST = OFF // Extended Instruction Set (Enabled) // CONFIG1H #pragma config CPUDIV = OSC1 // CPU System Clock Postscaler (No CPU system clock divide) #pragma config CP0 = OFF // Code Protect (Program memory is not code-protected) // CONFIG2L #pragma config OSC = ECPLL // Oscillator (EC+PLL (CLKO-RA6), USB-EC+PLL) #pragma config T1DIG = ON // T1OSCEN Enforcement (Secondary Oscillator clock source may be selected) #pragma config LPT1OSC = OFF // Low-Power Timer1 Oscillator (High-power operation) #pragma config FCMEN = ON // Fail-Safe Clock Monitor (Enabled) #pragma config IESO = ON // Internal External Oscillator Switch Over Mode (Enabled) // CONFIG2H #pragma config WDTPS = 32768 // Watchdog Postscaler (1:32768) // CONFIG3L #pragma config DSWDTOSC = INTOSCREF// DSWDT Clock Select (DSWDT uses INTRC) #pragma config RTCOSC = T1OSCREF// RTCC Clock Select (RTCC uses T1OSC/T1CKI) #pragma config DSBOREN = ON // Deep Sleep BOR (Enabled) #pragma config DSWDTEN = ON // Deep Sleep Watchdog Timer (Enabled) #pragma config DSWDTPS = G2 // Deep Sleep Watchdog Postscaler (1:2,147,483,648 (25.7 days)) // CONFIG3H #pragma config IOL1WAY = ON // IOLOCK One-Way Set Enable bit (The IOLOCK bit (PPSCON<0>) can be set once) #pragma config MSSP7B_EN = MSK7 // MSSP address masking (7 Bit address masking mode) // CONFIG4L #pragma config WPFP = PAGE_63 // Write/Erase Protect Page Start/End Location (Write Protect Program Flash Page 63) #pragma config WPEND = PAGE_WPFP// Write/Erase Protect Region Select (valid when WPDIS = 0) (Page WPFP<5:0> through Configuration Words erase/write protected) #pragma config WPCFG = OFF // Write/Erase Protect Configuration Region (Configuration Words page not erase/write-protected) // CONFIG4H #pragma config WPDIS = OFF // Write Protect Disable bit (WPFP<5:0>/WPEND region ignored) #include<p18F26J50.h> #include"delays.h" void main (void) { int x; TRISC=0x00; PORTCbits.RC2=1; Delay10KTCYx(20); WDTCONbits.REGSLP = 1; //PERIPHERAL INT DISABLE OSCCONbits.IDLEN = 0; INTCONbits.GIE=0; PORTCbits.RC2=0; DSCONHbits.DSEN=1; Sleep(); x=0; while(1) { ; } }`` 
