seniordesign-firmware Changeset - 9716361162e0

Changeset - 9716361162e0

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ethanzonca@CL-SEC241-08.cedarville.edu - 12 years ago 2012-11-08 15:40:33
ethanzonca@CL-SEC241-08.cedarville.edu

ax25 implementation complete (compiles)

5 files changed with 27 insertions and 6 deletions:

master/master/config.h

master/master/lib/afsk.c

master/master/lib/afsk.h

master/master/lib/ax25.c

master/master/lib/ax25.h

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master/master/config.h

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@@ @@ -3,13 +3,25 @@ @@
+ *
  * Created: 10/25/2012 3:28:22 PM
  *  Author: ethanzonca
  */
 #ifndef CONFIG_H_
 #define CONFIG_H_
 #define F_CPU 11059200
 #define MODULE_ID '1'
 // --------------------------------------------------------------------------
 // AX.25 config (ax25.c)
 // --------------------------------------------------------------------------
 // TX delay in milliseconds
 #define TX_DELAY      300
 // Maximum packet delay
 #define MAX_PACKET_LEN 512  // bytes
 #endif /* CONFIG_H_ */
@@ \ No newline at end of file @@

master/master/lib/afsk.c

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 /*
  * fsk.c
+ *
  * Created: 10/29/2012 7:40:34 PM
  *  Author: ethanzonca
  */
 #define F_CPU 11059200
 #include "../config.h"
 #include <stdint.h>
 #include <stdbool.h>
 #include <avr/io.h>
 #include <avr/interrupt.h>
 #include <util/delay.h>
 #include <avr/pgmspace.h>
 PROGMEM extern const uint8_t afsk_sine_table[512] = {
 , 129, 130, 132, 133, 135, 136, 138, 139, 141, 143, 144, 146, 147, 149, 150, 152, 153, 155, 156, 158,
 , 161, 163, 164, 166, 167, 168, 170, 171, 173, 174, 176, 177, 179, 180, 182, 183, 184, 186, 187, 188,

master/master/lib/afsk.h

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 /*
  * afsk.h
+ *
  * Created: 10/29/2012 7:43:03 PM
  *  Author: ethanzonca
  */
 #ifndef AFSK_H_
 #define AFSK_H_
 // Private
 void afsk_output_sample(uint8_t s);
 void afsk_timer_stop();
 // Public
 void afsk_setup();
 void afsk_test();
 void afsk_send(const uint8_t *buffer, int len);
 int afsk_busy();
 void afsk_start();
 #endif /* AFSK_H_ */
@@ \ No newline at end of file @@

master/master/lib/ax25.c

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 /*
  * ax25.c
+ *
  * Created: 10/30/2012 12:16:41 PM
  *  Author: ethanzonca
  */
-/*
 #include <inttypes.h>
 #include "../config.h"
 #include "ax25.h"
 #include "afsk.h"
 // Module constants
 #define MAX_PACKET_LEN 512  // bytes
 // Module globals
 static uint16_t crc;
 static uint8_t ones_in_a_row;
 static uint8_t packet[MAX_PACKET_LEN];
 static unsigned int packet_size;
 // Module functions
 void update_crc(uint8_t a_bit)
+{
 	crc ^= a_bit;
 	if (crc & 1)
 	crc = (crc >> 1) ^ 0x8408;  // X-modem CRC poly
@@ @@ -125,13 +124,12 @@ void ax25_send_footer() @@
 	send_byte(~(final_crc & 0xff));
 	// Signal the end of frame
 	ax25_send_flag();
+}
 void ax25_flush_frame()
+{
 	// Key the transmitter and send the frame
 	afsk_send(packet, packet_size);
 	afsk_start();
+}
 */
@@ \ No newline at end of file @@

master/master/lib/ax25.h

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 /*
  * ax25.h
+ *
  * Created: 10/30/2012 12:14:05 PM
  *  Author: ethanzonca
  */
 #ifndef AX25_H_
 #define AX25_H_
 struct s_address {
 	char callsign[7];
 	unsigned char ssid;
 };
 void ax25_send_byte(uint8_t a_byte);
 void ax25_send_flag();
 void ax25_send_string(const char *string);
 void ax25_send_header(const struct s_address *addresses, int num_addresses);
 void ax25_send_footer();
 void ax25_flush_frame();
 #endif /* AX25_H_ */
@@ \ No newline at end of file @@

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