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Serial makefile target

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Imbus 2024-03-23 04:28:03 +01:00
parent eb77cd1577
commit f5101cff32
2 changed files with 31 additions and 21 deletions
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46
main.c
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@ -12,7 +12,7 @@
#define LED_PIN PB5 // Define the pin connected to the LED #define LED_PIN PB5 // Define the pin connected to the LED
#define TEMP_SENSOR_ADDR 0x48 #define TEMP_SENSOR_ADDR 0x48
#define TEMP_REG_ADDR 0x00 #define TEMP_REG_ADDR 0x00
#define BAUD 9600 #define BAUD 9600 // 9600 seems to be the highest the ATmega328P can handle in this config
void initI2C() { void initI2C() {
// Set the prescaler to 1 // Set the prescaler to 1
@ -104,25 +104,6 @@ float readTemperature() {
return (float)temperature * 0.0625; return (float)temperature * 0.0625;
} }
int main(void) {
initI2C();
initUART();
float temperature;
while (1) {
temperature = readTemperature();
// Print temperature over UART
UART_println("Temperature: ");
UART_transmit((uint8_t)(temperature / 10.0) + '0');
UART_transmit((uint8_t)fmod(temperature, 10.0) + '0');
UART_println(" °C");
_delay_ms(1000); // Delay for 1 second
}
return 0;
}
void blink() { void blink() {
// Set the LED pin as output // Set the LED pin as output
DDRB |= (1 << LED_PIN); DDRB |= (1 << LED_PIN);
@ -139,3 +120,28 @@ void blink() {
_delay_ms(500); _delay_ms(500);
} }
} }
int main(void) {
// initI2C();
initUART();
while(1) {
UART_println("Hello, World!");
_delay_ms(1000);
}
// float temperature;
// while (1) {
// temperature = readTemperature();
// // Print temperature over UART
// UART_println("Temperature: ");
// UART_transmit((uint8_t)(temperature / 10.0) + '0');
// UART_transmit((uint8_t)fmod(temperature, 10.0) + '0');
// UART_println(" °C");
// _delay_ms(1000); // Delay for 1 second
// }
// return 0;
}

6
makefile
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@ -9,7 +9,7 @@ MCU = atmega328p
QEMU_MACHINE_NAME = uno QEMU_MACHINE_NAME = uno
# Compiler flags # Compiler flags
CFLAGS = -std=c99 -Wall -Wno-array-bounds -mmcu=$(MCU) -DF_CPU=16000000UL -O3 CFLAGS = -std=c2x -Wall -Wno-array-bounds -mmcu=$(MCU) -DF_CPU=16000000UL -O3
# Source files # Source files
SRCS = main.c SRCS = main.c
@ -30,6 +30,7 @@ all: $(TARGET).hex
# Link object files # Link object files
$(TARGET).elf: $(OBJS) $(TARGET).elf: $(OBJS)
$(CC) $(CFLAGS) $(OBJS) -o $(TARGET).elf $(CC) $(CFLAGS) $(OBJS) -o $(TARGET).elf
avr-strip $(TARGET).elf
# Convert ELF to HEX # Convert ELF to HEX
$(TARGET).hex: $(TARGET).elf $(TARGET).hex: $(TARGET).elf
@ -47,6 +48,9 @@ qemu: $(TARGET).elf
asm: $(TARGET).hex asm: $(TARGET).hex
avr-objdump -S $(TARGET).elf avr-objdump -S $(TARGET).elf
serial:
picocom -b 9600 /dev/ttyUSB0
# Clean # Clean
clean: clean:
rm -f $(OBJS) $(TARGET).elf $(TARGET).hex rm -f $(OBJS) $(TARGET).elf $(TARGET).hex