Thomas Cauwelier / Mbed 2 deprecated visible_light_communication

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Dependencies:   SoftSerial SDFileSystem mbed wave_player

main.cpp@10:071b7cc8b0ff, 2017-05-03 (annotated)

Committer:
Thomas Cauwelier
Date:
Wed May 03 09:40:14 2017 +0200
Revision:
10:071b7cc8b0ff
Parent:
9:d95984ce5de9
Child:
11:e462ce7a42b9
add consts to manchester methods

uart thread test force reading 2 bytes

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Desertification 1:6b839581dc9f 1
Desertification 1:6b839581dc9f 2 #include "mbed.h"
Thomas Cauwelier 6:0e1973fdfe28 3 #include "rtos.h"
Thomas Cauwelier 9:d95984ce5de9 4 #include "Manchester.h"
Thomas Cauwelier 6:0e1973fdfe28 5
Thomas Cauwelier 9:d95984ce5de9 6 Serial out(p9, p10, 3200); //p9
Thomas Cauwelier 9:d95984ce5de9 7 Serial in(p13, p14, 3200); //p14
Thomas Cauwelier 6:0e1973fdfe28 8
Thomas Cauwelier 10:071b7cc8b0ff 9 char *read_2_bytes(Serial *serial, char out[2]) {
Thomas Cauwelier 10:071b7cc8b0ff 10 int i = 0;
Thomas Cauwelier 10:071b7cc8b0ff 11 while (true) {
Thomas Cauwelier 10:071b7cc8b0ff 12 while (!serial->readable());
Thomas Cauwelier 10:071b7cc8b0ff 13 char c = (char) serial->getc();
Thomas Cauwelier 10:071b7cc8b0ff 14 if (c == 0b11100011) //no data flag
Thomas Cauwelier 10:071b7cc8b0ff 15 continue;
Thomas Cauwelier 10:071b7cc8b0ff 16 else{
Thomas Cauwelier 10:071b7cc8b0ff 17 out[i] = c;
Thomas Cauwelier 10:071b7cc8b0ff 18 i++;
Thomas Cauwelier 10:071b7cc8b0ff 19 }
Thomas Cauwelier 10:071b7cc8b0ff 20
Thomas Cauwelier 10:071b7cc8b0ff 21 if (i == 2){
Thomas Cauwelier 10:071b7cc8b0ff 22 break;
Thomas Cauwelier 10:071b7cc8b0ff 23 }
Thomas Cauwelier 10:071b7cc8b0ff 24 }
Thomas Cauwelier 10:071b7cc8b0ff 25 return out;
Thomas Cauwelier 10:071b7cc8b0ff 26 }
Thomas Cauwelier 10:071b7cc8b0ff 27
Thomas Cauwelier 6:0e1973fdfe28 28
Thomas Cauwelier 6:0e1973fdfe28 29 void receive_uart() {
Thomas Cauwelier 10:071b7cc8b0ff 30 while (true) {
Thomas Cauwelier 10:071b7cc8b0ff 31 if (in.readable()) {
Thomas Cauwelier 10:071b7cc8b0ff 32 char s[2];
Thomas Cauwelier 10:071b7cc8b0ff 33 read_2_bytes(&in, s);
Thomas Cauwelier 10:071b7cc8b0ff 34 char dec[1];
Thomas Cauwelier 10:071b7cc8b0ff 35 Manchester::decode_manchester(s, 2, dec);
Thomas Cauwelier 9:d95984ce5de9 36
Thomas Cauwelier 9:d95984ce5de9 37 printf(dec);
Thomas Cauwelier 10:071b7cc8b0ff 38 } else {
Thomas Cauwelier 6:0e1973fdfe28 39 Thread::yield();
Thomas Cauwelier 6:0e1973fdfe28 40 }
Thomas Cauwelier 6:0e1973fdfe28 41 }
Thomas Cauwelier 6:0e1973fdfe28 42 }
Desertification 1:6b839581dc9f 43
Desertification 1:6b839581dc9f 44 int main() {
Thomas Cauwelier 7:2b99a26e6a43 45 printf("%s\r\n", "hello, term!");
Thomas Cauwelier 7:2b99a26e6a43 46
Thomas Cauwelier 7:2b99a26e6a43 47 Thread thread;
Thomas Cauwelier 7:2b99a26e6a43 48 thread.start(receive_uart);
Thomas Cauwelier 6:0e1973fdfe28 49
Thomas Cauwelier 10:071b7cc8b0ff 50 while (true) {
Thomas Cauwelier 8:4fcc746968b3 51 while (!out.writeable());
Thomas Cauwelier 9:d95984ce5de9 52
Thomas Cauwelier 9:d95984ce5de9 53 char tosend[28];
Thomas Cauwelier 10:071b7cc8b0ff 54 Manchester::encode_manchester("hello, term\r\n", 14, tosend);
Thomas Cauwelier 9:d95984ce5de9 55 out.printf(tosend);
Thomas Cauwelier 9:d95984ce5de9 56 wait(1);
Thomas Cauwelier 6:0e1973fdfe28 57 }
Thomas Cauwelier 6:0e1973fdfe28 58
thoma@THOMAS-CAUWELIER.khbo.be 4:a07612fbf279 59 }