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-rw-r--r--rf_test/Recv.Makefile43
-rw-r--r--rf_test/Send.Makefile44
-rw-r--r--rf_test/radio.c212
-rw-r--r--rf_test/radio.h22
-rw-r--r--rf_test/recv.c64
-rw-r--r--rf_test/send.c34
-rw-r--r--rf_test/serial.c33
-rw-r--r--rf_test/serial.h8
8 files changed, 0 insertions, 460 deletions
diff --git a/rf_test/Recv.Makefile b/rf_test/Recv.Makefile
deleted file mode 100644
index 67ac41f..0000000
--- a/rf_test/Recv.Makefile
+++ /dev/null
@@ -1,43 +0,0 @@
-CC = avr-gcc
-MCU = atmega328p
-TARGET = recv
-
-SRC = radio.c recv.c serial.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
deleted file mode 100644
index 06e083b..0000000
--- a/rf_test/Send.Makefile
+++ /dev/null
@@ -1,44 +0,0 @@
-CC = avr-gcc
-MCU = atmega328p
-TARGET = send
-
-SRC = radio.c send.c serial.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/radio.c b/rf_test/radio.c
deleted file mode 100644
index f5d98c8..0000000
--- a/rf_test/radio.c
+++ /dev/null
@@ -1,212 +0,0 @@
-#include <stdlib.h>
-
-#include <avr/io.h>
-#include <util/delay.h>
-
-#include "radio.h"
-#include "serial.h"
-
-#define SPI_SS PB2
-#define SPI_SCK PB5
-#define SPI_MISO PB4
-#define SPI_MOSI PB3
-#define SPI_DDR DDRB
-#define SPI_PORT PORTB
-
-#define RF69_OPMODE_RX 0x10
-#define RF69_OPMODE_TX 0x0C
-#define RF69_OPMODE_STDBY 0x04
-
-#define RF69_REG_FIFO 0x01
-#define RF69_REG_OPMODE 0x01
-#define RF69_REG_PALEVEL 0x11
-#define RF69_REG_TESTPA1 0x5A
-#define RF69_REG_TESTPA2 0x5C
-#define RF69_REG_IRQFLAGS1 0x27
-#define RF69_REG_IRQFLAGS2 0x28
-#define RF69_REG_DIOMAPPING1 0x25
-
-#define RF69_PALEVEL_PA1 0x40
-#define RF69_PALEVEL_PA2 0x20
-#define RF69_TESTPA1_BOOST 0x5D
-#define RF69_TESTPA2_BOOST 0x7C
-#define RF69_TESTPA1_NORMAL 0x55
-#define RF69_TESTPA2_NORMAL 0x70
-#define RF69_DIOMAPPING1_PACKET_SENT 0x00
-#define RF69_DIOMAPPING1_PAYLOAD_READY 0x40
-
-static int8_t power = 0;
-static uint8_t opmode = 0;
-
-static inline uint8_t read_reg(uint8_t reg)
-{
- SPI_PORT &= ~(1 << SPI_SS);
- SPDR = reg & 0x7F;
- while (!(SPSR & (1 << SPIF)))
- ;
- SPDR = 0;
- while (!(SPSR & (1 << SPIF)))
- ;
- SPI_PORT |= (1 << SPI_SS);
- return SPDR;
-}
-
-static inline void write_reg(uint8_t reg, uint8_t val)
-{
- SPI_PORT &= ~(1 << SPI_SS);
- SPDR = reg | 0x80;
- while (!(SPSR & (1 << SPIF)))
- ;
- SPDR = val;
- while (!(SPSR & (1 << SPIF)))
- ;
- SPI_PORT |= (1 << SPI_SS);
-}
-
-static inline void set_mode(uint8_t mode)
-{
- uint8_t val;
-
- if (opmode != mode) {
- if (mode == RF69_OPMODE_TX) {
- if (power >= 18) {
- write_reg(RF69_REG_TESTPA1, RF69_TESTPA1_BOOST);
- write_reg(RF69_REG_TESTPA2, RF69_TESTPA2_BOOST);
- }
- write_reg(RF69_REG_DIOMAPPING1, RF69_DIOMAPPING1_PACKET_SENT);
- } else {
- if (power >= 18) {
- write_reg(RF69_REG_TESTPA1, RF69_TESTPA1_NORMAL);
- write_reg(RF69_REG_TESTPA2, RF69_TESTPA2_NORMAL);
- }
- if (mode == RF69_OPMODE_RX)
- write_reg(RF69_REG_DIOMAPPING1, RF69_DIOMAPPING1_PAYLOAD_READY);
- }
-
- val = read_reg(RF69_REG_OPMODE);
- val &= ~0x1C;
- val |= (mode & 0x1C);
-
- write_reg(RF69_REG_OPMODE, val);
- while (!(read_reg(RF69_REG_IRQFLAGS1) & 0x80))
- ;
-
- opmode = mode;
- }
-}
-
-void radio_set_tx_power(int8_t val)
-{
- uint8_t pa;
-
- power = val;
-
- if (power < -2)
- power = -2;
-
- if (power <= 13)
- pa = (RF69_PALEVEL_PA1 | ((power + 18) & 0x1F));
- else if (power >= 18)
- pa = (RF69_PALEVEL_PA1 | RF69_PALEVEL_PA2 | ((power + 11) & 0x1F));
- else
- pa = (RF69_PALEVEL_PA1 | RF69_PALEVEL_PA2 | ((power + 14) & 0x1F));
-
- write_reg(RF69_REG_PALEVEL, pa);
-}
-
-void radio_send(const char *data, uint8_t n)
-{
- uint8_t i, mode;
-
- mode = opmode;
- set_mode(RF69_OPMODE_STDBY);
-
- SPI_PORT &= ~(1 << SPI_SS);
-
- SPDR = RF69_REG_FIFO | 0x80;
- while (!(SPSR & (1 << SPIF)))
- ;
-
- for (i = 0; i < n; i++) {
- SPDR = data[i];
- while (!(SPSR & (1 << SPIF)))
- ;
- }
-
- SPI_PORT |= (1 << SPI_SS);
-
- set_mode(RF69_OPMODE_TX);
- while (!(read_reg(RF69_REG_IRQFLAGS2) & 0x08))
- ;
-
- set_mode(mode);
-}
-
-uint8_t radio_recv(char *buf, uint8_t n)
-{
- uint8_t read_len, mode;
-
- read_len = 0;
- mode = opmode;
-
- set_mode(RF69_OPMODE_STDBY);
-
- SPI_PORT &= ~(1 << SPI_SS);
-
- SPDR = RF69_REG_FIFO | 0x7F;
- while (!(SPSR & (1 << SPIF)))
- ;
-
- while (read_len < n) {
- SPDR = 0;
- while (!(SPSR & (1 << SPIF)))
- ;
- buf[read_len++] = SPDR;
- }
-
- SPI_PORT |= (1 << SPI_SS);
-
- set_mode(mode);
- return read_len;
-}
-
-void radio_listen(void)
-{
- set_mode(RF69_OPMODE_RX);
-}
-
-void radio_init(const struct radio_cfg *cfg)
-{
- SPI_DDR |= (1 << SPI_SS) | (1 << SPI_SCK) | (1 << SPI_MOSI);
- SPI_PORT |= (1 << SPI_SS);
- SPCR |= (1 << SPE) | (1 << MSTR);
-
- set_mode(RF69_OPMODE_STDBY);
-
- // LNA, AFC and RXBW settings
- write_reg(0x18, 0x88);
- write_reg(0x19, 0x55);
- write_reg(0x1A, 0x8B);
-
- // DIO mappings: IRQ on DIO0
- write_reg(0x25, 0x40);
- write_reg(0x26, 0x07);
-
- // RSSI threshold
- write_reg(0x29, 0xE4);
-
- // sync config
- write_reg(0x2E, 0x80);
- write_reg(0x2F, cfg->netid);
-
- // packet config
- write_reg(0x37, 0x10);
- write_reg(0x38, cfg->payload_len);
- write_reg(0x39, cfg->nodeid);
-
- // fifo config
- write_reg(0x3C, 0x8F);
-
- // DAGC config
- write_reg(0x6F, 0x30);
-}
diff --git a/rf_test/radio.h b/rf_test/radio.h
deleted file mode 100644
index 924da2d..0000000
--- a/rf_test/radio.h
+++ /dev/null
@@ -1,22 +0,0 @@
-#ifndef RADIO_H
-#define RADIO_H
-
-#include <stdint.h>
-
-struct radio_cfg {
- uint8_t netid;
- uint8_t nodeid;
- uint8_t payload_len;
-};
-
-void radio_init(const struct radio_cfg *cfg);
-
-void radio_set_tx_power(int8_t val);
-
-void radio_listen(void);
-
-void radio_send(const char *data, uint8_t n);
-
-uint8_t radio_recv(char *buf, uint8_t n);
-
-#endif
diff --git a/rf_test/recv.c b/rf_test/recv.c
deleted file mode 100644
index 1c6ac0f..0000000
--- a/rf_test/recv.c
+++ /dev/null
@@ -1,64 +0,0 @@
-#include <avr/io.h>
-#include <avr/interrupt.h>
-
-#include "radio.h"
-#include "serial.h"
-
-#define RX_PIN PD7
-#define RX_DDR DDRD
-#define RX_PORT PORTD
-#define RX_PCIE PCIE2
-#define RX_PCINT PCINT23
-#define RX_PCMSK PCMSK2
-#define RX_PCINTVEC PCINT2_vect
-
-#define MAX_PAYLOAD_LEN 60
-
-static char *s = "hello, world!";
-static uint8_t slen = 13;
-
-int main(void)
-{
- struct radio_cfg cfg;
-
- cfg.netid = 0x01;
- cfg.nodeid = 0x01;
- cfg.payload_len = slen;
-
- RX_DDR &= ~(1 << RX_PIN);
- RX_PORT &= ~(1 << RX_PIN);
- PCICR |= (1 << RX_PCIE);
- RX_PCMSK |= (1 << RX_PCINT);
-
- serial_init();
-
- radio_init(&cfg);
- radio_listen();
-
- sei();
-
- for (;;)
- ;
-
- return 0;
-}
-
-ISR(RX_PCINTVEC)
-{
- uint8_t i, n;
- char buf[MAX_PAYLOAD_LEN];
-
- cli();
-
- serial_write_line("Detected pin change IRQ");
-
- n = radio_recv(buf, MAX_PAYLOAD_LEN - 1);
- buf[n] = '\0';
-
- for (i = 0; i < n; i++)
- serial_write(buf[i]);
- serial_write('\r');
- serial_write('\n');
-
- sei();
-}
diff --git a/rf_test/send.c b/rf_test/send.c
deleted file mode 100644
index b390cf3..0000000
--- a/rf_test/send.c
+++ /dev/null
@@ -1,34 +0,0 @@
-#include <stdlib.h>
-#include <string.h>
-
-#include <avr/io.h>
-#include <avr/interrupt.h>
-#include <util/delay.h>
-
-#include "radio.h"
-#include "serial.h"
-
-int main(void)
-{
- uint8_t n;
- struct radio_cfg cfg;
- const char *s = "hello, world!";
-
- n = strlen(s);
-
- cfg.netid = 0x01;
- cfg.nodeid = 0x02;
- cfg.payload_len = n;
-
- serial_init();
- radio_init(&cfg);
- radio_set_tx_power(18);
-
- for (;;) {
- radio_send(s, n);
- serial_write_line("sent");
- _delay_ms(1500);
- }
-
- return 0;
-}
diff --git a/rf_test/serial.c b/rf_test/serial.c
deleted file mode 100644
index 782e848..0000000
--- a/rf_test/serial.c
+++ /dev/null
@@ -1,33 +0,0 @@
-#include <avr/io.h>
-#include <util/setbaud.h>
-
-#include "serial.h"
-
-void serial_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);
-}
-
-void serial_write(char data)
-{
- while (!(UCSR0A & (1 << UDRE0)))
- ;
- UDR0 = data;
-}
-
-void serial_write_line(const char *s)
-{
- for (; *s; s++)
- serial_write(*s);
-
- serial_write('\r');
- serial_write('\n');
-}
diff --git a/rf_test/serial.h b/rf_test/serial.h
deleted file mode 100644
index 0f9415b..0000000
--- a/rf_test/serial.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef SA_SERIAL_H
-#define SA_SERIAL_H
-
-void serial_init(void);
-void serial_write(char data);
-void serial_write_line(const char *s);
-
-#endif /* SA_SERIAL_H */