RF tests.

4 files changed, 249 insertions, 0 deletions

diff --git a/rf_test/Recv.Makefile b/rf_test/Recv.Makefile
new file mode 100644
index 0000000..a517111
--- /dev/null
+++ b/rf_test/Recv.Makefile
@@ -0,0 +1,43 @@
+CC = avr-gcc
+MCU = atmega328p
+TARGET = recv
+
+SRC = recv.c
+OBJ = $(SRC:.c=.o)
+
+CFLAGS = -std=gnu99
+CFLAGS += -Os
+CFLAGS += -Wall
+CFLAGS += -mmcu=$(MCU)
+CFLAGS += -DBAUD=115200
+CFLAGS += -DF_CPU=16000000UL
+CFLAGS += -ffunction-sections -fdata-sections
+
+LDFLAGS = -mmcu=$(MCU)
+LDFLAGS += -Wl,--gc-sections
+
+HEX_FLAGS = -O ihex
+HEX_FLAGS += -j .text -j .data
+
+AVRDUDE_FLAGS = -p $(MCU)
+AVRDUDE_FLAGS += -c arduino
+AVRDUDE_FLAGS += -P /dev/cuaU0
+AVRDUDE_FLAGS += -D -U
+
+%.o: %.c
+	 $(CC) $(CFLAGS) -c -o $@ $<
+
+elf: $(OBJ)
+	 $(CC) $(LDFLAGS) $(OBJ) -o $(TARGET).elf
+
+hex: elf
+	 avr-objcopy $(HEX_FLAGS) $(TARGET).elf $(TARGET).hex
+
+upload: hex
+	 avrdude $(AVRDUDE_FLAGS) flash:w:$(TARGET).hex:i
+
+.PHONY: clean
+
+clean:
+	 rm *.o *.elf *.hex 
+
diff --git a/rf_test/Send.Makefile b/rf_test/Send.Makefile
new file mode 100644
index 0000000..f4d4511
--- /dev/null
+++ b/rf_test/Send.Makefile
@@ -0,0 +1,44 @@
+CC = avr-gcc
+MCU = atmega328p
+TARGET = send
+
+SRC = send.c
+OBJ = $(SRC:.c=.o)
+
+CFLAGS = -std=gnu99
+CFLAGS += -Os
+CFLAGS += -Wall
+CFLAGS += -mmcu=$(MCU)
+CFLAGS += -DBAUD=115200
+CFLAGS += -DF_CPU=16000000UL
+CFLAGS += -ffunction-sections -fdata-sections
+
+LDFLAGS = -mmcu=$(MCU)
+LDFLAGS += -Wl,--gc-sections
+
+HEX_FLAGS = -O ihex
+HEX_FLAGS += -j .text -j .data
+
+AVRDUDE_FLAGS = -p $(MCU)
+AVRDUDE_FLAGS += -c arduino
+AVRDUDE_FLAGS += -P /dev/cuaU0
+AVRDUDE_FLAGS += -D -U
+
+%.o: %.c
+	 $(CC) $(CFLAGS) -c -o $@ $<
+
+elf: $(OBJ)
+	 $(CC) $(LDFLAGS) $(OBJ) -o $(TARGET).elf
+
+hex: elf
+	 avr-objcopy $(HEX_FLAGS) $(TARGET).elf $(TARGET).hex
+
+upload: hex
+	 avrdude $(AVRDUDE_FLAGS) flash:w:$(TARGET).hex:i
+
+.PHONY: clean
+
+clean:
+	 rm *.o *.elf *.hex 
+
+
diff --git a/rf_test/recv.c b/rf_test/recv.c
new file mode 100644
index 0000000..e5764a7
--- /dev/null
+++ b/rf_test/recv.c
@@ -0,0 +1,85 @@
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <util/setbaud.h>
+
+#define LOCK_LED    PD6
+#define UNLOCK_LED  PD7
+
+#define SYN         0xA4
+#define ADDR        0x01
+#define LOCK_CMD    0x02
+#define UNLOCK_CMD  0x03
+
+static void usart_init(void)
+{
+	UBRR0H = UBRRH_VALUE;
+	UBRR0L = UBRRL_VALUE;
+#if USE_2X
+	UCSR0A |= (1 << U2X0);
+#else
+	UCSR0A &= ~(1 << U2X0);
+#endif
+	UCSR0B = (1 << TXEN0) | (1 << RXEN0);
+	UCSR0C = (1 << UCSZ01) | (1 << UCSZ00);
+}
+
+static unsigned char usart_recv(void)
+{
+	while((UCSR0A & (1 << RXC0)) == 0);
+	return UDR0;
+}
+
+static void led_init(void)
+{
+	DDRD |= (1 << LOCK_LED) | (1 << UNLOCK_LED);
+	PORTD |= (1 << LOCK_LED) | (1 << UNLOCK_LED);
+}
+
+int main(void)
+{
+	usart_init();
+	led_init();
+
+	sei();
+
+	for (;;)
+		;
+
+	return 0;
+}
+
+static inline int is_btn_pressed(unsigned char btn)
+{
+	if (!((PIND >> btn) & 0x01)) {
+		_delay_us(2000);
+		return !((PIND >> btn) & 0x01);
+	}
+	
+	return 0;
+}
+
+ISR(USART_RX_vect)
+{
+	unsigned char addr, data, chk;
+
+	addr = usart_recv();
+	data = usart_recv();
+	chk = usart_recv();
+
+	if(chk == (addr + data))
+	{
+		if(addr == ADDR)
+		{
+			if(data == LOCK_CMD) {
+				PORTC |= (1 << LOCK_LED);
+				PORTC &= ~(1 << UNLOCK_LED);
+				
+			} else if (data == UNLOCK_LED) {
+				PORTC |= (1 << UNLOCK_LED);
+				PORTC &= ~(1 << LOCK_LED);
+			}
+		}
+	}
+	
+}
diff --git a/rf_test/send.c b/rf_test/send.c
new file mode 100644
index 0000000..017d67b
--- /dev/null
+++ b/rf_test/send.c
@@ -0,0 +1,77 @@
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <util/setbaud.h>
+
+#define LOCK_BTN    PD6
+#define UNLOCK_BTN  PD7
+
+#define SYN        0xA4
+#define ADDR       0x01
+#define LOCK_CMD   0x02
+#define UNLOCK_CMD 0x03
+
+static void usart_init(void)
+{
+	UBRR0H = UBRRH_VALUE;
+	UBRR0L = UBRRL_VALUE;
+#if USE_2X
+	UCSR0A |= (1 << U2X0);
+#else
+	UCSR0A &= ~(1 << U2X0);
+#endif
+	UCSR0B = (1 << TXEN0) | (1 << RXEN0);
+	UCSR0C = (1 << UCSZ01) | (1 << UCSZ00);
+}
+
+static void usart_send(unsigned char data)
+{
+	while (!(UCSR0A & (1 << UDRE0)))
+		;
+	UDR0 = data;
+}
+
+int main(void)
+{
+	usart_init();
+
+	for (;;)
+		;
+
+	return 0;
+}
+
+static inline int is_btn_pressed(unsigned char btn)
+{
+	if (!((PIND >> btn) & 0x01)) {
+		_delay_us(2000);
+		return !((PIND >> btn) & 0x01);
+	}
+	
+	return 0;
+}
+
+static inline void lock(void)
+{
+	usart_send(SYN);
+	usart_send(ADDR);
+	usart_send(LOCK_CMD);
+	usart_send(LOCK_CMD + ADDR);
+}
+
+static inline void unlock(void)
+{
+	usart_send(SYN);
+	usart_send(ADDR);
+	usart_send(UNLOCK_CMD);
+	usart_send(UNLOCK_CMD + ADDR);
+}
+
+ISR(PCINT2_vect)
+{
+	if (is_btn_pressed(LOCK_BTN))
+		lock();
+
+	if (is_btn_pressed(UNLOCK_BTN))
+		unlock();
+}