Rainer Raul / atterm

Communicate to bluetooth devices or wifi per at-commands

Dependents:   Nucleo_bt

at.cpp@1:ce7fb335aa1b, 2018-08-16 (annotated)

Committer:
rainerraul
Date:
Thu Aug 16 21:09:12 2018 +0000
Revision:
1:ce7fb335aa1b
Parent:
0:413f3c13a00a
Child:
2:b8d28a4f6b02
timed buffer

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rainerraul 0:413f3c13a00a 1
rainerraul 0:413f3c13a00a 2 #include "mbed.h"
rainerraul 0:413f3c13a00a 3 #include "at.h"
rainerraul 0:413f3c13a00a 4
rainerraul 0:413f3c13a00a 5 #define TX PA_9
rainerraul 0:413f3c13a00a 6 #define RX PA_10
rainerraul 0:413f3c13a00a 7
rainerraul 0:413f3c13a00a 8 #define TX1 PC_6
rainerraul 0:413f3c13a00a 9 #define RX1 PC_7
rainerraul 0:413f3c13a00a 10
rainerraul 0:413f3c13a00a 11 Serial atserial0(TX, RX); //UART1
rainerraul 0:413f3c13a00a 12 Serial atserial1(TX1, RX1); //UART6
rainerraul 0:413f3c13a00a 13
rainerraul 0:413f3c13a00a 14 atterm at0;
rainerraul 0:413f3c13a00a 15 atterm at1;
rainerraul 1:ce7fb335aa1b 16 Timer t;
rainerraul 0:413f3c13a00a 17
rainerraul 0:413f3c13a00a 18 void CallBack0()
rainerraul 0:413f3c13a00a 19 {
rainerraul 0:413f3c13a00a 20 at0.sign = atserial0.getc();
rainerraul 0:413f3c13a00a 21
rainerraul 0:413f3c13a00a 22
rainerraul 0:413f3c13a00a 23 if(at0.sign != '\r') { //with no linefeed and carriage return, string is written in buffer
rainerraul 0:413f3c13a00a 24 at0.buffer[at0.a] = at0.sign;
rainerraul 0:413f3c13a00a 25 at0.a ++;
rainerraul 0:413f3c13a00a 26 } else { //if user typed in cr and lf, the content of buffer is send to atcommand device
rainerraul 0:413f3c13a00a 27
rainerraul 0:413f3c13a00a 28 if(at0.off == 0) {
rainerraul 0:413f3c13a00a 29 atserial0.printf("Read: %s\r\n", at0.buffer); // via printf formatted as string for debug use
rainerraul 0:413f3c13a00a 30 }
rainerraul 0:413f3c13a00a 31
rainerraul 0:413f3c13a00a 32 }
rainerraul 0:413f3c13a00a 33 }
rainerraul 0:413f3c13a00a 34
rainerraul 0:413f3c13a00a 35 void CallBack1()
rainerraul 0:413f3c13a00a 36 {
rainerraul 0:413f3c13a00a 37 at1.sign = atserial1.getc();
rainerraul 0:413f3c13a00a 38
rainerraul 0:413f3c13a00a 39
rainerraul 0:413f3c13a00a 40 if(at1.sign != '\r') { //with no linefeed and carriage return, string is written in buffer
rainerraul 0:413f3c13a00a 41 at1.buffer[at1.a] = at1.sign;
rainerraul 0:413f3c13a00a 42 at1.a ++;
rainerraul 0:413f3c13a00a 43 } else { //if user typed in cr and lf, the content of buffer is send to atcommand device
rainerraul 0:413f3c13a00a 44
rainerraul 0:413f3c13a00a 45 if(at1.off == 0) {
rainerraul 0:413f3c13a00a 46 atserial1.printf("Read: %s\r\n", at1.buffer); // via printf formatted as string for debug use
rainerraul 0:413f3c13a00a 47 }
rainerraul 0:413f3c13a00a 48
rainerraul 0:413f3c13a00a 49 }
rainerraul 0:413f3c13a00a 50 }
rainerraul 0:413f3c13a00a 51
rainerraul 0:413f3c13a00a 52 void atterm::debug_off(bool l)
rainerraul 0:413f3c13a00a 53 {
rainerraul 0:413f3c13a00a 54 if(l) atterm::off = 1;
rainerraul 0:413f3c13a00a 55 if(!l) atterm::off = 0;
rainerraul 0:413f3c13a00a 56 }
rainerraul 0:413f3c13a00a 57
rainerraul 0:413f3c13a00a 58 void atterm::at_send(char *format, char *buf)
rainerraul 0:413f3c13a00a 59 {
rainerraul 0:413f3c13a00a 60 atserial0.printf(format, buf);
rainerraul 0:413f3c13a00a 61 }
rainerraul 0:413f3c13a00a 62
rainerraul 0:413f3c13a00a 63 void atterm::clear()
rainerraul 0:413f3c13a00a 64 {
rainerraul 0:413f3c13a00a 65 memset(atterm::buffer, 0, sizeof(atterm::buffer)); //set buffer to 0, for next clean read
rainerraul 0:413f3c13a00a 66 atterm::a = 0; //index pointer to zero
rainerraul 0:413f3c13a00a 67
rainerraul 0:413f3c13a00a 68 }
rainerraul 0:413f3c13a00a 69
rainerraul 1:ce7fb335aa1b 70 void atterm::device_init(unsigned long baud, _IRQ interrupt)
rainerraul 0:413f3c13a00a 71 {
rainerraul 0:413f3c13a00a 72 atterm::debug_off(1);
rainerraul 1:ce7fb335aa1b 73 if(interrupt == ON) atserial0.attach(&CallBack0);
rainerraul 0:413f3c13a00a 74 atserial0.baud(baud);
rainerraul 1:ce7fb335aa1b 75
rainerraul 0:413f3c13a00a 76 }
rainerraul 0:413f3c13a00a 77
rainerraul 0:413f3c13a00a 78 void atterm::at_send1(char *format, char *buf)
rainerraul 0:413f3c13a00a 79 {
rainerraul 0:413f3c13a00a 80 atserial1.printf(format, buf);
rainerraul 0:413f3c13a00a 81 }
rainerraul 0:413f3c13a00a 82
rainerraul 0:413f3c13a00a 83
rainerraul 0:413f3c13a00a 84
rainerraul 1:ce7fb335aa1b 85 void atterm::device_init1(unsigned long baud, _IRQ interrupt)
rainerraul 0:413f3c13a00a 86 {
rainerraul 0:413f3c13a00a 87 atterm::debug_off(1);
rainerraul 1:ce7fb335aa1b 88 if(interrupt == ON) atserial1.attach(&CallBack1);
rainerraul 0:413f3c13a00a 89 atserial1.baud(baud);
rainerraul 1:ce7fb335aa1b 90 at1.at_send1("AT\r\n", "");
rainerraul 1:ce7fb335aa1b 91
rainerraul 1:ce7fb335aa1b 92 }
rainerraul 1:ce7fb335aa1b 93
rainerraul 1:ce7fb335aa1b 94 char *atterm::getAnswer(uint32_t timeout)
rainerraul 1:ce7fb335aa1b 95 {
rainerraul 1:ce7fb335aa1b 96 int b = 0;
rainerraul 1:ce7fb335aa1b 97 int t_time = 0;
rainerraul 1:ce7fb335aa1b 98 char sign, sign1;
rainerraul 1:ce7fb335aa1b 99
rainerraul 1:ce7fb335aa1b 100 memset(read_timed_buffer, 0, sizeof(read_timed_buffer));
rainerraul 1:ce7fb335aa1b 101
rainerraul 1:ce7fb335aa1b 102 t.start();
rainerraul 1:ce7fb335aa1b 103 t_time = t.read();
rainerraul 0:413f3c13a00a 104
rainerraul 1:ce7fb335aa1b 105 while(1) {
rainerraul 1:ce7fb335aa1b 106 if(atserial0.readable()) {
rainerraul 1:ce7fb335aa1b 107 sign = atserial0.getc();
rainerraul 1:ce7fb335aa1b 108 read_timed_buffer[b] = sign;
rainerraul 1:ce7fb335aa1b 109 b ++;
rainerraul 1:ce7fb335aa1b 110 }
rainerraul 0:413f3c13a00a 111
rainerraul 1:ce7fb335aa1b 112 else if(atserial1.readable()) {
rainerraul 1:ce7fb335aa1b 113 sign1 = atserial1.getc();
rainerraul 1:ce7fb335aa1b 114 read_timed_buffer[b] = sign1;
rainerraul 1:ce7fb335aa1b 115 b ++;
rainerraul 1:ce7fb335aa1b 116 }
rainerraul 1:ce7fb335aa1b 117 if((t.read() - t_time) > timeout) {
rainerraul 1:ce7fb335aa1b 118 t.stop();
rainerraul 1:ce7fb335aa1b 119 t.reset();
rainerraul 1:ce7fb335aa1b 120 break;
rainerraul 1:ce7fb335aa1b 121
rainerraul 1:ce7fb335aa1b 122 }
rainerraul 1:ce7fb335aa1b 123
rainerraul 1:ce7fb335aa1b 124 }
rainerraul 1:ce7fb335aa1b 125 return read_timed_buffer;
rainerraul 0:413f3c13a00a 126 }