Paul Jaeger / YYY_Dragonfly_USBTerminal

Sets Dragonfly into an AT command path via a USB to Serial path. The debug path is selected by default. This also has the commands to send a simple text and set the APN.

Dependencies:   mbed-src

Fork of YYY_Dragonfly_USBTerminal by Paul Jaeger

main.cpp@2:69fe2640298a, 2015-10-29 (annotated)

Committer:
BlueShadow
Date:
Thu Oct 29 09:03:22 2015 +0000
Revision:
2:69fe2640298a
Parent:
1:af87be58749e 
added notes for AT commands via USB cable.  Added at command sequence to program for some debugging and diagnostic info for what's going on.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mfiore 0:46dc3fdbc97e 1 #include "mbed.h"
mfiore 0:46dc3fdbc97e 2
BlueShadow 1:af87be58749e 3 int main()
BlueShadow 1:af87be58749e 4 {
mfiore 0:46dc3fdbc97e 5 // external serial port
BlueShadow 2:69fe2640298a 6 /* Serial ext(USBTX,USBRX ); */ //AT commands via USB port on Dragonfly
BlueShadow 2:69fe2640298a 7 /* Serial ext(dbgTX,dbgRX); */ //AT commands via debug port (same as below but bad reference text
BlueShadow 2:69fe2640298a 8 Serial ext(PB_6, PB_7); //AT commands via debug port that we use for jtag programming also.
BlueShadow 2:69fe2640298a 9 /* Serial ext(PA_2, PA_3); */ //AT commands not sure where they go yet.
BlueShadow 1:af87be58749e 10
mfiore 0:46dc3fdbc97e 11 // internal serial port to radio
BlueShadow 2:69fe2640298a 12 Serial radio(RADIO_TX, RADIO_RX);
BlueShadow 1:af87be58749e 13
BlueShadow 2:69fe2640298a 14 ext.baud(115200); // can be changed to a higher rate, Windows is ok with 115200
BlueShadow 2:69fe2640298a 15 radio.baud(115200); // set by multitech engineers
BlueShadow 1:af87be58749e 16
BlueShadow 2:69fe2640298a 17 while (true) { // push in data to In radio
mfiore 0:46dc3fdbc97e 18 if (ext.readable())
mfiore 0:46dc3fdbc97e 19 radio.putc(ext.getc());
BlueShadow 2:69fe2640298a 20 if (radio.readable()) //push jout data from radio to out radio
mfiore 0:46dc3fdbc97e 21 ext.putc(radio.getc());
mfiore 0:46dc3fdbc97e 22 }
BlueShadow 2:69fe2640298a 23 }
BlueShadow 2:69fe2640298a 24
BlueShadow 2:69fe2640298a 25
BlueShadow 2:69fe2640298a 26 /*
BlueShadow 2:69fe2640298a 27 Below are the AT commands that will
BlueShadow 2:69fe2640298a 28
BlueShadow 2:69fe2640298a 29 Foot notes for class
BlueShadow 2:69fe2640298a 30 NOTE: BACKSPACE will cause the instructions to FAIL. Just hit enter and re-type
BlueShadow 2:69fe2640298a 31
BlueShadow 2:69fe2640298a 32 at [if working, command responds with “OK”]
BlueShadow 2:69fe2640298a 33 at+cpin? [Check SIM is detected] READY
BlueShadow 2:69fe2640298a 34 at+cgdcont=1,”IP”,”xxxxxxxxxxxxxxxxxx” [Enter the carrier SIM APN into modem]
BlueShadow 2:69fe2640298a 35 at+cgdcont? [verify APN is correct]
BlueShadow 2:69fe2640298a 36 at+csq [Check signal strength >10, but 8 will still work]
BlueShadow 2:69fe2640298a 37 at+creg? [Check for successful network registration] +CREG:0,1 or +CREG:0,5
BlueShadow 2:69fe2640298a 38 at+cnmi=2,2,0,1,0 [Configure to route received SMS text direct to serial interface]
BlueShadow 2:69fe2640298a 39 at+cmgf=1 [text mode for SMS]
BlueShadow 2:69fe2640298a 40 at+cmgs=”1##########”<cr> [enter phone number # to send SMS text message] >type sms message at greater than prompt<Control-Z> to send
BlueShadow 2:69fe2640298a 41 Verify SMS is received. On phone that received SMS, respond by sending SMS back to modem number.
BlueShadow 2:69fe2640298a 42
BlueShadow 2:69fe2640298a 43
BlueShadow 2:69fe2640298a 44 AT+creg? Responses
BlueShadow 2:69fe2640298a 45 ------------------------- +CREG: 0,2 not registered to a network but looking (device hasn’t established a link to the carrier yet)
BlueShadow 2:69fe2640298a 46 +CREG: 0,1 registered on the home network
BlueShadow 2:69fe2640298a 47 +CREG: 0,5 registered but roaming
BlueShadow 2:69fe2640298a 48 +CREG: 0,3 unknown (bad)
BlueShadow 2:69fe2640298a 49 +CREG: 0,4 unknown (bad)
BlueShadow 2:69fe2640298a 50 +CREG: 0,0 unregistered and not looking (sim isn’t: installed, inplace correctly , functional, active)
BlueShadow 2:69fe2640298a 51
BlueShadow 2:69fe2640298a 52 AT+csq: >10 is better but it will function at lower levels.
BlueShadow 2:69fe2640298a 53 Reference Signal Levels
BlueShadow 2:69fe2640298a 54 0 = -113 dBm, 1 = -111 dBm, 2 = -109 dBm, 3 = -107 dBm, 4 = -105 dBm
BlueShadow 2:69fe2640298a 55 5 = -103 dBm, 6 = -101 dBm, 7 = -99 dBm, 8 = -97 dBm, 9 = -95 dBm
BlueShadow 2:69fe2640298a 56 10 = -93 dBm, 11 = -91 dBm, 12 = -89 dBm, 13 = -87 dBm, 14 = -85 dBm
BlueShadow 2:69fe2640298a 57 15 = -83 dBm, 16 = -81 dBm, 17 = -79 dBm, 18 = -77 dBm, 19 = -75 dBm
BlueShadow 2:69fe2640298a 58 20 = -73 dBm, 21 = -71 dBm, 22 = -69 dBm, 23 = -67 dBm, 24 = -65 dBm
BlueShadow 2:69fe2640298a 59 25 = -63 dBm, 26 = -61 dBm, 27 = -59 dBm, 28 = -57 dBm, 29 = -55 dBm
BlueShadow 2:69fe2640298a 60 30 = -53 dBm, 31 = -51 dBm
BlueShadow 2:69fe2640298a 61 */