/*
* FenceCharger_Transmitter.c
* Created on: Apr 22, 2017
* Author: Brad
*/
#include "derivative.h" /* include peripheral declarations */
#include "my_io_apps.c" /* include peripheral declarations */
#include "mcg.h" /* using XTAL and PLL does not work returns errors*/
#include "my_interrupts.c"
#include <stdio.h>
#include <string.h>
#define HVSwitch_On gpo_b(0,1)
#define HVSwitch_Off gpo_b(0,0)
#define GreenLED_On gpo_e(4,0)
#define GreenLED_Off gpo_e(4,1)
#define Transmitter_On gpo_e(22,1)
#define Transmitter_Off gpo_e(22,0)
int c = 0;
int i = 0, chargetime=0,x,y ;
void OneHVPulse(int numpulse)
{
HVSwitch_On;
delay_ms(numpulse);
HVSwitch_Off;
}
void INIT_UART2_SENDER (void)
{
SIM_SCGC4 = SIM_SCGC4|SIM_SCGC4_UART2_MASK;
SIM_SCGC5 = SIM_SCGC5|SIM_SCGC5_PORTE_MASK;
PORTE_PCR22 = PORT_PCR_ISF_MASK|PORT_PCR_MUX(0x4);
UART2_BDH = 0x10;
UART2_BDL = 0xE2;
UART2_C4 = 0x0F;
UART2_C1 = 0x00;
UART2_C3 = 0x00;
UART2_S1 |= 0x1F;
UART2_S2 |= 0xC0;
UART2_C2 |= UART0_C2_TE_MASK;
}
void send_data(void)
{
while(!(UART2_S1&UART_S1_TDRE_MASK) && !(UART2_S1&UART_S1_TC_MASK));
UART2_D = c;
}
void INIT_CMP (void)
{
SIM_SCGC4 = SIM_SCGC4|SIM_SCGC4_CMP_MASK;
SIM_SOPT4 = SIM_SOPT4|SIM_SOPT4_TPM1CH0SRC_MASK; // tpm1 ch0 selected
SIM_SCGC5|=SIM_SCGC5_PORTC_MASK;
SIM_SCGC5|=SIM_SCGC5_PORTE_MASK;
SIM_SCGC5|=SIM_SCGC5_PORTA_MASK;
CMP0_CR0 = 0X0;
CMP0_CR1 = 0X97; //HIGH SPEED COMPARATOR MODE,COMPARATOR OUTPUT PIN ENABLED, ANALOG COMP. ENABLED
CMP0_FPR = 0X0;
PORTC_PCR5 = PORTC_PCR5|PORT_PCR_MUX(0x6);
PORTA_PCR12 = PORTA_PCR12|PORT_PCR_MUX(0x3);
SIM_SCGC6|=SIM_SCGC6_DAC0_MASK;
DAC0_C0 = 0XA0;
DAC0_DAT0L = 0X50; // 50 steps to give 64.5mV ((3.3v / 4096) x 80)
DAC0_DAT0H = 0X00;
PORTE_PCR30 = PORTE_PCR30|PORT_PCR_MUX(0X0);
CMP0_MUXCR = 0X2c; //PSEL SET TO IN4, MSEL SET IT IN7(DAC OUTPUT)
//activating tpm module
SIM_SOPT2 |= SIM_SOPT2_PLLFLLSEL_MASK;
SIM_SOPT2 &= ~(SIM_SOPT2_TPMSRC_MASK);
SIM_SOPT2 |= SIM_SOPT2_TPMSRC(1);
SIM_SCGC6 |= SIM_SCGC6_TPM1_MASK;
//The TPM Module has Clock. Now set up the peripheral
//Blow away the control registers to ensure that the counter is not running
TPM1_SC = 0;
TPM1_CONF = 0;
//While the counter is disabled we can setup the prescaler
TPM1_SC = TPM_SC_PS(6);
//TPM1_SC |= TPM_SC_TOIE_MASK; //Enable Interrupts for the Timer Overflow
//Setup the mod register to get the correct Period
//TPM1_MOD = 38500; //approx. 100ms period for trigger pulse
//Sub-channels set up for input capture
TPM1_C0SC = TPM_CnSC_ELSA_MASK; //rising edge
//TPM1_C1SC = TPM_CnSC_ELSB_MASK; //falling edge
//Last step, Enable the TPM COunter
TPM1_SC |= TPM_SC_CMOD(1);
}
main(void) {
//******Initial Chip Settings******************
int pll_err=pll_init(8000000,0,1,4,24,1); //Use the crystal oscillator to drive the PLL
//******User chip initializations***************************************
init_gpio_b(0,1); //fencepulser
init_gpio_b(1,1); // can also be used as the fencepulser
init_gpio_e(4,1); //green led indicator
init_gpio_e(22,1); //transmitter
gpo_b(0,0);
gpo_b(1,0);
gpo_e(4,1);
init_gpio_e(20,0); //sampling resistor data
//Initialize the ADC for the pot
INIT_CMP();
INIT_UART2_SENDER();
syst_tick_init();
for(;;)
{
sys_ticks=0;
GreenLED_On;
TPM1_CNT = 0; //resetting timer
delay_100us(1);
x=TPM1_CNT;
HVSwitch_On;
while(gpi_c(5)==0 && TPM1_CNT <20000)
chargetime = TPM1_CNT;
if(chargetime<1000)
delay_ms(20);
HVSwitch_Off;
delay_ms(20);
if(chargetime>475)
{
c = 60 ;
send_data();
}
else
{
c = 195;
send_data();
}
while(sys_ticks<40);
}
return 0;
}
/*
* FenceCharger_Receiver.c
* Created on: Apr 27, 2017
* Author: Brad
*/
#include "derivative.h" /* include peripheral declarations */
#include "my_io_apps.c" /* include peripheral declarations */
#include "mcg.h" /* using XTAL and PLL does not work returns errors*/
#include "my_interrupts.c"
#include <stdio.h>
#include <string.h>
#define GreenLED_On gpo_e(21,0)
#define GreenLED_Off gpo_e(21,1)
#define RedLED_On gpo_e(20,0)
#define RedLED_Off gpo_e(20,1)
unsigned char c,z=0;
void INIT_UART2_RECVR (void)
{
SIM_SCGC4 = SIM_SCGC4_UART2_MASK;
SIM_SCGC5 = SIM_SCGC5_PORTE_MASK;
PORTE_PCR23 = PORT_PCR_ISF_MASK|PORT_PCR_MUX(0x4);
UART2_BDH = 0x10;
UART2_BDL = 0xE2;
UART2_C4 = 0x0F;
UART2_C1 = 0x00;
UART2_C3 = 0x00;
UART2_S1 |= 0x1F;
UART2_S2 |= 0xC0;
UART2_C2 |= UART0_C2_RE_MASK;
}
void recv_data(void)
{
while(!(UART2_S1&UART_S1_RDRF_MASK));
c = UART2_D;
}
main(void)
{
//******Initial Chip Settings******************
int pll_err=pll_init(8000000,0,1,4,24,1); //Use the crystal oscillator to drive the PLL
//******User chip initializations***************************************
init_gpio_e(21,1); //green led indicator
init_gpio_e(20,1); //red led indicator
gpo_e(21,1); // turning off green led
gpo_e(20,1);
init_gpio_e(23,0); //receiver
adc0_init(); //Initialize the ADC for the pot
INIT_UART2_RECVR();
syst_tick_init();
sys_ticks=0;
for(;;)
{
recv_data();
if(c<124)
{GreenLED_On; RedLED_Off;}
else if(c >130)
{GreenLED_Off; RedLED_On;}
else
z=c;
delay_ms(1000);
}
return 0;
}