Files
wheel_rfm69_counter/avr_code/main.c
T
2026-08-31 22:43:51 -04:00

283 lines
6.6 KiB
C

#include "adc.h"
#include "defines.h"
#include "interrupts.h"
#include "m95128.h"
#include "max31329.h"
#include "ndef.h"
#include "power_mgmt.h"
#include "rfm69.h"
#include "st25dv.h"
#include "states.h"
#if DO_UART
#include "uart.h"
#endif
#include <avr/interrupt.h>
#include <avr/io.h>
#include <avr/power.h>
#include <avr/sleep.h>
#include <stdbool.h>
#include <stdio.h>
#include <util/delay.h>
#define WAIT_FOREVER \
while (1) { \
_delay_ms(100); \
};
#if ITERATING
#define SEND_INTERVAL 1
#else
#define SEND_INTERVAL 15
#endif
uint16_t self_value;
tx_rx_data_struct CRAP;
uint16_t main_counter;
volatile uint8_t is_debouncing = 0;
volatile bool increment_minute_index = false;
volatile bool increment_wheel_count = false;
volatile uint8_t index_wheel_count = 0;
volatile uint16_t total_wheel_counts[15];
RTC_RFM69_STATUS rtc_rfm69_status;
ISR(INT0_vect) {
cli();
#if DO_UART
uart_sendString("\t\t\t\tMINUTE INTERRUPT\n");
#endif
increment_minute_index = true;
// sei();
}
ISR(INT1_vect) {
cli();
#if ITERATING
increment_minute_index = true;
#endif
#if DO_UART
uart_sendString("\t\t\t\tREED INTERRUPT\n");
#endif
if (!is_debouncing) {
total_wheel_counts[index_wheel_count]++;
is_debouncing = 1;
wdt_isr_enable();
}
// sei();
}
ISR(WDT_vect) {
cli();
is_debouncing = 0;
wdt_isr_disable();
// sei();
}
void start_sleeping() {
spi_eeprom_select(false);
spi_rfm69_select(false);
rfid_set_low_power_down(true);
rfid_set_i2c_power(false);
ldo_set_state(false);
_delay_ms(10);
sleep_bod_disable();
set_sleep_mode(SLEEP_MODE_PWR_DOWN);
sleep_enable();
sei();
sleep_cpu();
}
uint16_t get_battery_reading() {
adc_Enable();
adc_GetConversion(14);
adc_GetConversion(14);
self_value = adc_GetConversion(14);
adc_Disable();
return self_value;
}
// i2c Addresses
// RTC
// 0x68 (0xD0 W) (0xD1 R)
// NFC
// 0x2D (0x5A W) (0x5B R)
// 0x53 (0xA6 W) (0xA7 R)
// 0x57 (0xAE W) (0xAF R)
int main(void) {
ldo_set_state(true);
_delay_ms(10);
init_pins();
#if DO_UART
uart_init();
uart_sendString("---- STARTING ----\n");
uart_wait_until_sent();
#endif
i2c_init();
init_spi();
adc_Initialize();
set_up_reed_interrupt();
set_up_minute_interrupt();
#if DO_UART
uart_sendString("Set up AVR interrupts\n");
#endif
rtc_set_per_minute_alarm();
rtc_set_alarm_config();
rtc_enable_interrupts();
rtc_read_interrupt_register();
rtc_read_status_register();
#if DO_UART
uart_sendString("Set up RTC interrupts\n");
#endif
rfm69_init();
#if DO_UART
uart_sendString("Initialized RFM69\n");
#endif
write_last_page_value(0);
#if DO_UART
uart_sendString("Set up last page value for SPI flash\n");
#endif
for (uint8_t c = 0; c < 15; c++) {
total_wheel_counts[c] = 0;
}
// Get the nugget's name and wheel diameter
IDENTIFIER = get_nugget_data();
#if DO_UART
uart_sendString("Got nugget data from RFID\n");
#endif
// Request time from radio
rtc_rfm69_status = set_time_from_rfm69(IDENTIFIER);
if (rtc_rfm69_status == RTC_RFM69_SET_TIME_SUCCESS) {
for (int i = 0; i < 5; i++) {
led_1_set_state(true);
_delay_ms(90);
led_1_set_state(false);
_delay_ms(10);
}
} else {
for (int i = 0; i < 5; i++) {
led_1_set_state(true);
_delay_ms(10);
led_1_set_state(false);
_delay_ms(90);
}
}
#if DO_UART
if (rtc_rfm69_status == RTC_RFM69_SET_TIME_FAILED) {
uart_sendString("Failed to get time \n");
} else {
uart_sendString("Success in get time \n");
};
#endif
get_battery_reading();
while (1) {
spi_rfm69_select(false);
spi_eeprom_select(false);
start_sleeping();
cli();
if (increment_minute_index) {
#if DO_UART
uart_sendString("In minute index\n");
#endif
increment_minute_index = false;
is_debouncing = 0;
index_wheel_count += 1;
rtc_read_interrupt_register();
rtc_read_status_register();
rtc_read_interrupt_register();
rtc_read_status_register();
if (index_wheel_count >= SEND_INTERVAL) {
index_wheel_count = 0;
ldo_set_state(true);
rfm69_init();
rfid_set_i2c_power(true);
rfid_set_low_power_down(false);
_delay_ms(1);
IDENTIFIER = get_nugget_data();
// Request time from radio if we don't have a good time stamp yet
if (rtc_rfm69_status == RTC_RFM69_SET_TIME_FAILED) {
rtc_rfm69_status = set_time_from_rfm69(IDENTIFIER);
}
// Generate wheel counts message
reset_txrx_struct(&TX_DATA);
get_battery_reading();
TX_DATA = generate_wheel_counts_message(
IDENTIFIER, rtc_read_time(), get_battery_reading(), total_wheel_counts);
#if DO_UART
uart_sendString("TX DATA Sent\n");
uart_print_tx_rx_data(TX_DATA);
#endif
DATA_SEND_STATUS result = send_message(TX_DATA);
if (result == DATA_NOT_SENT) {
#if DO_UART
uart_sendString(" TX DATA not sent, writing to SPI\n");
#endif
write_struct_to_last_page(TX_DATA);
}
for (uint8_t c = 0; c < 15; c++) {
total_wheel_counts[c] = 0;
}
if ((result == DATA_SEND_SUCCESS) && (get_last_page() > 0)) {
reset_txrx_struct(&TX_DATA);
TX_DATA = read_struct_last_page();
TX_DATA.flags = MSG_RESENT_COUNTS;
_delay_ms(250);
result = send_message(TX_DATA);
#if DO_UART
if (result == DATA_NOT_SENT) {
uart_sendString(" SPI not sent\n");
}
#endif
send_message(TX_DATA);
delete_last_page();
#if DO_UART
uart_sendString("TX DATA From SPI Memory\n");
uart_print_tx_rx_data(TX_DATA);
#endif
}
}
}
}
}