Hi Team,
I have problems with the absorption mode LPM4 in order to MSP430F2121, in the datasheet is reported consumption are around 100 - 500nA at 3V,
while I have a power consumption of 20 uA.
Please could you help me?
I attached the schema and C code I am using.
Any suggestion is well accepted
1261.main.c
//------------------------------------------------------------------------------------------//
// Progetto telecomando 433,92Mhz //
//------------------------------------------------------------------------------------------//
#include <io430.h>
#include <in430.h>
//#include <io430x12x.h>
#include "DefineV.h"
#include <stdio.h>
#include <intrinsics.h>
//------------------------------------------------------------------------------------------//
//------------------------------------------------------------------------------------//
// Dichiarazioni variabili globali
//------------------------------------------------------------------------------------//
char Waiting4ACK;
char ShiftReg;
char volteTX=1;
char TXBuffer[16];
char RXBuffer[16];
int gl_conta16;
char TXBufferIndex;
char RXBufferWriteIndex;
//enum StateType {IDLE_STATE=0,TX_STATE=1,TX_PN9_STATE=2,RX_STATE=3};
// Counter variables
unsigned char gl_BitCounter;
unsigned int gl_CheckSum;
// Contains the total number of bytes to send in TX, including preamble and header
char BytesToSend;
// The number of bytes of data to receive in RX
char BytesToReceive;
char classe=24;
struct
{
unsigned Listen2Pegaso:1;
unsigned Trasmetti:1;
unsigned TrasmettiSV:1;
unsigned :1;
unsigned :1;
unsigned :1;
unsigned :1;
unsigned :1;
}
AuxFlags;
char ack_ricevuto_ok;
char tasto;
//---------------------------------------------------------------------------//
//Dichiarazione prototipi Funzioni
//---------------------------------------------------------------------------//
void port_init(void);
void init_devices(void);
unsigned int writeCmd(unsigned int cmd);
void FIFOReset();
void rfInit(void);
void rfSend(unsigned char data);
void Set_TX_mode(void);
void Set_RX_mode(void);
void Set_sleep_mode(void);
unsigned char rfRecv();
void delay1ms(void);
void delay75us(void);
void delay150us(void);
void delay300us(void);
void delay1700us(void);
void delay_Xms(unsigned int ms);
void Rispondi_ack(void);
void OK_Condition(void);
char attesa_timer(unsigned int ttm);
void stopTimer(void);
void startTimer(int time);
void Prepara_cod(void);
char attesa_ack(void);
void Finto(void);
//---------------------------------------------------------------------------//
//Inizializza i registri e I/O
//---------------------------------------------------------------------------//
void init_devices(void)
{
//stop errant interrupts until set up
//_DINT(); //disable all interrupts
//ME2=0X00; //disable sfr peripherals............
IE1=0x00; //disable sfr interrupts
IE2=0x00;
//watchdog initialisation including nmi function
//WDTCTL=0x5A00 | 0x00;
//WDTCTL = WDTPW + WDTHOLD; // Stop WDT
WDTCTL = WDTPW + WDTHOLD;
//initialise other peripherals
port_init();
//clock_init();
//timera_init();
// PUart_init();
//EINT(); //re-enable interrupts
}
//--------------------------------------------------------------------------//
//Init Porte
//--------------------------------------------------------------------------//
//--------------------------------------------------------------------------//
//Telecomando vecchio
void port_init()
{
P1OUT=0x00;
P1DIR=0x0E;
//P1IES=0x01;
//P1IE=0x00;
//P1SEL=0x00;
P2OUT=0x00;
P2DIR=0x01;
P2IES=0x00;
P2IE=0x00;
P2SEL=0x00;
P3OUT=0x08;
P3DIR=0xCA;
P3SEL=0x00;
}
//vedere per il nuovo
/*
void port_init()
{
P1OUT=0x00; //
P1DIR=0xE6; //
//P1IES=0x01; //
//P1IE=0x00; //
//P1SEL=0x00; //
P2OUT=0x00; //
P2DIR=0x31; //
P2IES=0x00; //
P2IE=0x00; //
P2SEL=0x00; //
P3OUT=0x08; //
P3DIR=0x1A; //
//P3DIR=0xDA;
P3SEL = 0x00; //
}
*/
//-----------------------------------------//
//Ok ho ricevuto e segnalo con lampeggio led
//-----------------------------------------//
void OK_Condition(void)
{
unsigned char volte_lam;
volte_lam=5;
while(volte_lam--){
LEDON1;
delay_Xms(50);
LEDOFF1;
delay_Xms(50);
}
}
//------------------------------------------------------------------------------------------//
// MAIN //
// //
//------------------------------------------------------------------------------------------//
int main( void )
{
char i;
__disable_interrupt();
init_devices(); //Inizializzazione periferiche
ON_PW;
PSEL_high; //portare basso quando devo abiltare RFM12B
PCLK_low; //clock basso
tasto='W'; //
delay_Xms(150);
rfInit(); //init device rf
FIFOReset(); //reset fifi0 device RF
//--------------------------------------------//
//ritardo per stabilizzare modulo radio
AuxFlags.Trasmetti = 1; //abilito flag trasmissione
// __enable_interrupt(); //
while(1){
LEDON;
Set_TX_mode();
//Finto();
if(!(TST1))
tasto='C'; //
if(!(TST2))
tasto='D'; //
if(!(TST3))
tasto='E';
//----------------------------------------------//
if( AuxFlags.Trasmetti==1) { //per abilitare
volteTX='1'; //
Prepara_cod(); //
Set_TX_mode(); //abilito tx_mode
delay_Xms(5); //
ack_ricevuto_ok=1; //
writeCmd(0x0000); //
rfSend(0xAA); //
rfSend(0xAA); //
rfSend(0xAA); //
rfSend(0x2D); //
rfSend(0xD4); //
for(i=1;i<16;i++){ //
rfSend(TXBuffer[i]); //
}
rfSend(0xAA); //
rfSend(0xAA); //
rfSend(0xAA); //
delay_Xms(1); //
volteTX++; //
}
if(attesa_ack()){
ack_ricevuto_ok=0; //
goto sleep_ON; //
}
if((volteTX <=10) && (ack_ricevuto_ok==1)){;
AuxFlags.Trasmetti=1; //perch� ho trasmesso una trama
goto no_ok_tx; //non ho ricevuto OK da Centrale
} //
delay_Xms(100); //
goto no_ok_tx; //
sleep_ON:
AuxFlags.Trasmetti=0;
LEDOFF;
volteTX=1;
Set_sleep_mode();
delay_Xms(100);
OFF_PW;
LPM3;
no_ok_tx:
//Set_TX_mode();
delay_Xms(100);
}
//return 0;
}
Best Regards
Pierluigi
