int main(void) {
char buf[40];
uint8_t devices, i, j, count, alarm_count;
uint8_t device[EXPECTING_SENSORS][8];
uint8_t alarm_device[EXPECTING_SENSORS][8];
float temps[EXPECTING_SENSORS];
/* Initialize system */
SystemInit();
/* Initialize delay */
TM_DELAY_Init();
/* Initialize OneWire on pin PD0 */
TM_OneWire_Init();
/* Initialize USART, TX: PB6, RX: PB7 */
TM_USART_Init(USART1, TM_USART_PinsPack_2, 115200);
/* Initialize Leds */
TM_DISCO_LedInit();
/* Turn leds on */
TM_DISCO_LedOn(LED_RED | LED_GREEN);
/* Checks for any device on 1-wire */
devices = TM_OneWire_First();
count = 0;
while (devices) {
count++;
/* Get full ROM value, 8 bytes, give location of first byte where to save */
TM_OneWire_GetFullROM(&device[count - 1][0]);
/* Get next device */
devices = TM_OneWire_Next();
}
/* If any devices on 1wire */
if (count > 0) {
sprintf(buf, "Devices found on 1-wire: %d\n\r", count);
TM_USART_Puts(USART1, buf);
/* Display 64bit rom code for each device */
for (j = 0; j < count; j++) {
for (i = 0; i < 8; i++) {
sprintf(buf, "0x%02X ", device[j][i]);
TM_USART_Puts(USART1, buf);
}
TM_USART_Puts(USART1, "\n\r");
}
} else {
TM_USART_Puts(USART1, "No devices on OneWire.\n\r");
}
/* Go through all connected devices and set resolution to 12bits */
for (i = 0; i < count; i++) {
TM_DS18B20_SetResolution(&device[i][0], TM_DS18B20_Resolution_12bits);
}
/* Set high temperature alarm on device number 0, 25degrees celcius */
TM_DS18B20_SetAlarmHighTemperature(&device[0][0], 25);
/* Disable alarm temperatures on device number 1 */
TM_DS18B20_DisableAlarmTemperature(&device[1][0]);
while (1) {
/* Start temperature conversion on all bits */
TM_DS18B20_StartAll();
/* Wait until all are done */
while (!TM_DS18B20_AllDone());
/* Read temperature from each device separatelly */
for (i = 0; i < count; i++) {
/* Read temperature from ROM address and store it to temps variable */
TM_DS18B20_Read(&device[i][0], &temps[i]);
/* Print temperature */
sprintf(buf, "Temp %d: %3.5f; ", i, temps[i]);
TM_USART_Puts(USART1, buf);
}
alarm_count = 0;
/* Check if any device has alarm flag set */
while (TM_DS18B20_AlarmSearch()) {
/* Store ROM of device which has alarm flag set */
TM_OneWire_GetFullROM(&alarm_device[alarm_count][0]);
alarm_count++;
}
sprintf(buf, "alarm: %d\n\r", alarm_count);
TM_USART_Puts(USART1, buf);
/* Any device has alarm flag set? */
if (alarm_count > 0) {
TM_USART_Puts(USART1, "THIS DEVICES HAVE ALARM!\n\r ");
/* Show rom of this devices */
for (j = 0; j < alarm_count; j++) {
for (i = 0; i < 8; i++) {
sprintf(buf, "0x%02X ", alarm_device[j][i]);
TM_USART_Puts(USART1, buf);
}
TM_USART_Puts(USART1, "\n\r ");
}
TM_USART_Puts(USART1, "ALARM devices recognized!\n\r");
}
/* Some delay */
Delayms(1000);
}
}
int tmp_get(void *data)
{
static uint32_t init = 0;
static uint8_t devices, i, j, alarm_count;
static uint8_t count;
static uint8_t device[EXPECTING_SENSORS][8];
static uint8_t alarm_device[EXPECTING_SENSORS][8];
static float temps[EXPECTING_SENSORS];
/* OneWire working struct */
static TM_OneWire_t OneWire1;
if (init == 0) {
init = 1;
/* Initialize OneWire on pin PD0 */
TM_OneWire_Init(&OneWire1, GPIOD, GPIO_Pin_0, RCC_APB2Periph_GPIOD);
/* Checks for any device on 1-wire */
count = 0;
devices = TM_OneWire_First(&OneWire1);
while (devices) {
/* Increase counter */
count++;
/* Get full ROM value, 8 bytes, give location of first byte where to save */
TM_OneWire_GetFullROM(&OneWire1, device[count - 1]);
/* Get next device */
devices = TM_OneWire_Next(&OneWire1);
}
/* If any devices on 1wire */
if (count > 0) {
// printf("Devices found on 1-wire: %d\n", count);
/* Display 64bit rom code for each device */
for (j = 0; j < count; j++) {
for (i = 0; i < 8; i++) {
// printf("0x%02X ", device[j][i]);
}
// printf("\n");
}
} else {
printf("No devices on OneWire.\n");
}
/* Go through all connected devices and set resolution to 12bits */
for (i = 0; i < count; i++) {
/* Set resolution to 12bits */
TM_DS18B20_SetResolution(&OneWire1, device[i], TM_DS18B20_Resolution_12bits);
}
/* Set high temperature alarm on device number 0, 25 degrees celcius */
TM_DS18B20_SetAlarmHighTemperature(&OneWire1, device[0], 25);
/* Disable alarm temperatures on device number 1 */
TM_DS18B20_DisableAlarmTemperature(&OneWire1, device[1]);
}
/* Start temperature conversion on all devices on one bus */
TM_DS18B20_StartAll(&OneWire1);
/* Wait until all are done on one onewire port */
while (!TM_DS18B20_AllDone(&OneWire1));
/* Read temperature from each device separatelly */
for (i = 0; i < count; i++) {
/* Read temperature from ROM address and store it to temps variable */
if (TM_DS18B20_Read(&OneWire1, device[i], &temps[i])) {
/* Print temperature */
printf("Temp %d: %d; \n", i, (int)temps[i]);
} else {
/* Reading error */
printf("Reading error;\n");
}
}
*(float *)(data) = temps[0];
if (i == 0)
return -1;
/* Reset alarm count */
alarm_count = 0;
/* Check if any device has alarm flag set */
while (TM_DS18B20_AlarmSearch(&OneWire1)) {
/* Store ROM of device which has alarm flag set */
TM_OneWire_GetFullROM(&OneWire1, alarm_device[alarm_count]);
/* Increase count */
alarm_count++;
}
// printf("Devices with alarm: %d\n", alarm_count);
/* Any device has alarm flag set? */
if (alarm_count > 0) {
/* Show rom of this devices */
for (j = 0; j < alarm_count; j++) {
// printf("Device with alarm: ");
for (i = 0; i < 8; i++) {
// printf("0x%02X ", alarm_device[j][i]);
}
// printf("\n ");
}
// printf("ALARM devices recognized!\n\r");
}
/* Print separator */
// printf("----------\n");
return 0;
}
