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做网站需要ui设计吗,眉县住房和城乡建设局网站,宿州网站建设设计公司,Wordpress主页不要全部显示VX-3R本身是不带APRS功能的#xff0c;不过可能通过外加TNC实现APRS功能。 有大佬已经用Arduino实现了相应的发射功能#xff1a; https://github.com/handiko/Arduino-APRS 我要做的#xff0c;就是简单修改一下代码#xff0c;做一个转接板。 YEASU官方没有给出VX-3R的音…VX-3R本身是不带APRS功能的不过可能通过外加TNC实现APRS功能。 有大佬已经用Arduino实现了相应的发射功能 https://github.com/handiko/Arduino-APRS 我要做的就是简单修改一下代码做一个转接板。 YEASU官方没有给出VX-3R的音频接口四节定义估计是为了推销自家的CT-44,手册上只有这么一个图 在网上查了一圈pinguide上有这么个图然后提了一句“Pinouts for speaker and mic are reversed on the vx-3r”。但是经我实际验证VX-3R的定义跟网站上是一样的并没有reversed。 转接板原理图如下 实物图如下 值得注意的是VX-3R的PTT是低电平发射。 完整的代码如下 /** Copyright © 2018 - Handiko Gesang - www.github.com/handiko* * This program is free software: you can redistribute it and/or modify* it under the terms of the GNU General Public License as published by* the Free Software Foundation, either version 3 of the License, or* (at your option) any later version.* * This program is distributed in the hope that it will be useful,* but WITHOUT ANY WARRANTY; without even the implied warranty of* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the* GNU General Public License for more details.* * You should have received a copy of the GNU General Public License* along with this program. If not, see https://www.gnu.org/licenses/.*/ #include math.h #include stdio.h// Defines the Square Wave Output Pin #define OUT_PIN 2#define _1200 1 #define _2400 0#define _FLAG 0x7e #define _CTRL_ID 0x03 #define _PID 0xf0 #define _DT_EXP , #define _DT_STATUS
#define _DT_POS !#define _NORMAL 1 #define _BEACON 2#define _FIXPOS 1 #define _STATUS 2 #define _FIXPOS_STATUS 3#define _PTT 5bool nada _2400;/** SQUARE WAVE SIGNAL GENERATION* * baud_adj lets you to adjust or fine tune overall baud rate* by simultaneously adjust the 1200 Hz and 2400 Hz tone,* so that both tone would scales synchronously.* adj_1200 determined the 1200 hz tone adjustment.* tc1200 is the half of the 1200 Hz signal periods.* * ————————- ——-* | | |* | | |* | | |* —- ————————-* * |—— tc1200 ———|—— tc1200 ———|* * adj_2400 determined the 2400 hz tone adjustment.* tc2400 is the half of the 2400 Hz signal periods.* * ———— ———— ——-* | | | | |* | | | | | * | | | | |* —- ———— ————* * |–tc2400–|–tc2400–|–tc2400–|–tc2400–|* */ const float baud_adj 0.975; const float adj_1200 1.0 * baud_adj; const float adj_2400 1.0 * baud_adj; unsigned int tc1200 (unsigned int)(0.5 * adj_1200 * 1000000.0 / 1200.0); unsigned int tc2400 (unsigned int)(0.5 * adj_2400 * 1000000.0 / 2400.0);/** This strings will be used to generate AFSK signals, over and over again.*/ const char *mycall BG7GF; char myssid 7;const char *dest APRS; const char *dest_beacon BEACON;const char *digi WIDE2; char digissid 1;const char *mystatus Hello World, This is a simple Arduino APRS Transmitter !;const char *lat 28XX.09N; const char *lon 112XX.62E; const char sym_ovl H; const char sym_tab a;unsigned int tx_delay 5000; unsigned int str_len 400;char bit_stuff 0; unsigned short crc0xffff;/** */ void set_nada_1200(void); void set_nada_2400(void); void set_nada(bool nada);void send_char_NRZI(unsigned char in_byte, bool enBitStuff); void send_string_len(const char *in_string, int len);void calc_crc(bool in_bit); void send_crc(void);void send_packet(char packet_type, char dest_type); void send_flag(unsigned char flag_len); void send_header(char msg_type); void send_payload(char type);void set_io(void); void print_code_version(void); void print_debug(char type, char dest_type);/** / void set_nada_1200(void) {digitalWrite(OUT_PIN, HIGH);delayMicroseconds(tc1200);digitalWrite(OUT_PIN, LOW);delayMicroseconds(tc1200); }void set_nada_2400(void) {digitalWrite(OUT_PIN, HIGH);delayMicroseconds(tc2400);digitalWrite(OUT_PIN, LOW);delayMicroseconds(tc2400);digitalWrite(OUT_PIN, HIGH);delayMicroseconds(tc2400);digitalWrite(OUT_PIN, LOW);delayMicroseconds(tc2400); }void set_nada(bool nada) {if(nada)set_nada_1200();elseset_nada_2400(); }/** This function will calculate CRC-16 CCITT for the FCS (Frame Check Sequence) as required for the HDLC frame validity check.* * Using 0x1021 as polynomial generator. The CRC registers are initialized with* 0xFFFF*/ void calc_crc(bool in_bit) {unsigned short xor_in;xor_in crc ^ in_bit;crc 1;if(xor_in 0x01)crc ^ 0x8408; }void send_crc(void) {unsigned char crc_lo crc ^ 0xff;unsigned char crc_hi (crc 8) ^ 0xff;send_char_NRZI(crc_lo, HIGH);send_char_NRZI(crc_hi, HIGH); }void send_header(char msg_type) {char temp;/** APRS AX.25 Header * ………………………………………………..* | DEST | SOURCE | DIGI | CTRL FLD | PID |* ——————————————————–* | 7 bytes | 7 bytes | 7 bytes | 0x03 | 0xf0 |* ——————————————————–* * DEST : 6 byte callsign 1 byte ssid* SOURCE : 6 byte your callsign 1 byte ssid* DIGI : 6 byte digi callsign 1 byte ssid* * ALL DEST, SOURCE, DIGI are left shifted 1 bit, ASCII format.* DIGI ssid is left shifted 1 bit 1* * CTRL FLD is 0x03 and not shifted.* PID is 0xf0 and not shifted.//******** DEST ********/if(msg_type _NORMAL){temp strlen(dest);for(int j0; jtemp; j)send_char_NRZI(dest[j] 1, HIGH);}else if(msg_type _BEACON){temp strlen(dest_beacon);for(int j0; jtemp; j)send_char_NRZI(dest_beacon[j] 1, HIGH);}if(temp 6){for(int j0; j(6 - temp); j)send_char_NRZI( 1, HIGH);}send_char_NRZI(0 1, HIGH);/****** SOURCE ******/temp strlen(mycall);for(int j0; jtemp; j)send_char_NRZI(mycall[j] 1, HIGH);if(temp 6){for(int j0; j(6 - temp); j)send_char_NRZI( 1, HIGH);}send_char_NRZI((myssid 0) 1, HIGH);/****** DIGI ********/temp strlen(digi);for(int j0; jtemp; j)send_char_NRZI(digi[j] 1, HIGH);if(temp 6){for(int j0; j(6 - temp); j)send_char_NRZI( 1, HIGH);}send_char_NRZI(((digissid 0) 1) 1, HIGH);/** CTRL FLD PID **/send_char_NRZI(_CTRL_ID, HIGH);send_char_NRZI(_PID, HIGH); }void send_payload(char type) {/ APRS AX.25 Payloads * TYPE : POSITION* ………………………………………………..* |DATA TYPE | LAT |SYMB. OVL.| LON |SYMB. TBL.|* ——————————————————–* | 1 byte | 8 bytes | 1 byte | 9 bytes | 1 byte |* ——————————————————–* * DATA TYPE : !* LAT : ddmm.ssN or ddmm.ssS* LON : dddmm.ssE or dddmm.ssW* * * TYPE : STATUS* …………………………….* |DATA TYPE | STATUS TEXT |* ———————————-* | 1 byte | N bytes |* ———————————-* * DATA TYPE : * STATUS TEXT: Free form text* * * TYPE : POSITION STATUS* ……………………………………………………………………* |DATA TYPE | LAT |SYMB. OVL.| LON |SYMB. TBL.| STATUS TEXT |* ——————————————————————————* | 1 byte | 8 bytes | 1 byte | 9 bytes | 1 byte | N bytes |* ——————————————————————————* * DATA TYPE : !* LAT : ddmm.ssN or ddmm.ssS* LON : dddmm.ssE or dddmm.ssW* STATUS TEXT: Free form text* * * All of the data are sent in the form of ASCII Text, not shifted.* /if(type _FIXPOS){send_char_NRZI(_DT_POS, HIGH);send_string_len(lat, strlen(lat));send_char_NRZI(sym_ovl, HIGH);send_string_len(lon, strlen(lon));send_char_NRZI(sym_tab, HIGH);}else if(type _STATUS){send_char_NRZI(_DT_STATUS, HIGH);send_string_len(mystatus, strlen(mystatus));}else if(type _FIXPOS_STATUS){send_char_NRZI(_DT_POS, HIGH);send_string_len(lat, strlen(lat));send_char_NRZI(sym_ovl, HIGH);send_string_len(lon, strlen(lon));send_char_NRZI(sym_tab, HIGH);send_char_NRZI( , HIGH);send_string_len(mystatus, strlen(mystatus));} }/** This function will send one byte input and convert it into AFSK signal one bit at a time LSB first.* * The encode which used is NRZI (Non Return to Zero, Inverted)* bit 1 : transmitted as no change in tone* bit 0 : transmitted as change in tone*/ void send_char_NRZI(unsigned char in_byte, bool enBitStuff) {bool bits;for(int i 0; i 8; i){bits in_byte 0x01;calc_crc(bits);if(bits){set_nada(nada);bit_stuff;if((enBitStuff) (bit_stuff 5)){nada ^ 1;set_nada(nada);bit_stuff 0;}}else{nada ^ 1;set_nada(nada);bit_stuff 0;}in_byte 1;} }void send_string_len(const char in_string, int len) {for(int j0; jlen; j)send_char_NRZI(in_string[j], HIGH); }void send_flag(unsigned char flag_len) {for(int j0; jflag_len; j)send_char_NRZI(_FLAG, LOW); }/** In this preliminary test, a packet is consists of FLAG(s) and PAYLOAD(s). Standard APRS FLAG is 0x7e character sent over and over again as a packet* delimiter. In this example, 100 flags is used the preamble and 3 flags as* the postamble./ void send_packet(char packet_type, char dest_type) {print_debug(packet_type, dest_type);digitalWrite(LED_BUILTIN, 1);digitalWrite(_PTT, LOW);/** AX25 FRAME * ………………………………………………..* | FLAG(s) | HEADER | PAYLOAD | FCS(CRC) | FLAG(s) |* ——————————————————–* | N bytes | 22 bytes | N bytes | 2 bytes | N bytes |* ——————————————————–* * FLAG(s) : 0x7e* HEADER : see header* PAYLOAD : 1 byte data type N byte info* FCS : 2 bytes calculated from HEADER PAYLOAD/send_flag(100);crc 0xffff;send_header(dest_type);send_payload(packet_type);send_crc();send_flag(3);digitalWrite(_PTT, HIGH);digitalWrite(LED_BUILTIN, 0); }/** Function to randomized the value of a variable with defined low and hi limit value. Used to create random AFSK pulse length.*/ void randomize(unsigned int var, unsigned int low, unsigned int high) {var random(low, high); }/** / void set_io(void) {pinMode(LED_BUILTIN, OUTPUT);pinMode(OUT_PIN, OUTPUT);pinMode(_PTT, OUTPUT);digitalWrite(_PTT, HIGH);Serial.begin(115200); }void print_code_version(void) {Serial.println( );Serial.print(Sketch: ); Serial.println(FILE);Serial.print(Uploaded: ); Serial.println(DATE);Serial.println( );Serial.println(Random String Pulsed AFSK Generator - Started \n); }void print_debug(char type, char dest_type) {/** PROTOCOL DEBUG. * Will outputs the transmitted data to the serial monitor* in the form of TNC2 string format.* * MYCALL-NAPRS,DIGIn-N:PAYLOAD STRING CRLF//****** MYCALL *****/Serial.print(mycall);Serial.print(-);Serial.print(myssid, DEC);Serial.print();/***** DEST *****/if(dest_type _NORMAL){Serial.print(dest);}else if(dest_type _BEACON){Serial.print(dest_beacon);}Serial.print(,);/***** DIGI *****/Serial.print(digi);Serial.print(-);Serial.print(digissid, DEC);Serial.print(:);/*** PAYLOAD ****/if(type _FIXPOS){Serial.print(_DT_POS);Serial.print(lat);Serial.print(sym_ovl);Serial.print(lon);Serial.print(sym_tab);}else if(type _STATUS){Serial.print(_DT_STATUS);Serial.print(mystatus);}else if(type _FIXPOS_STATUS){Serial.print(_DT_POS);Serial.print(lat);Serial.print(sym_ovl);Serial.print(lon);Serial.print(sym_tab);Serial.print( );Serial.print(mystatus);}Serial.println( ); }/ */ void setup() {set_io();print_code_version(); }void loop() {send_packet(random(1,4), random(1,3));delay(tx_delay);randomize(tx_delay, 10, 5000);randomize(str_len, 10, 420); }