Stephen Dickey / Mbed 2 deprecated C027_CANInterfaceComm

This tests the CAN interface between two LISA C027 MBED Boards. By connecting the two boards, pins 1,2,3 respectively on the CAN interface, and loading and executing this code on BOTH boards, CAN messages will be received, and printed, on the PC-USB console interface of both devices.

Dependencies:   C027-REVB UbloxUSBModem mbed

Fork of C027_ModemTransparentUSBCDC_revb by Stephen Dickey

main.cpp@0:92ab4f4846f8, 2013-12-13 (annotated)

Committer:
dixter1
Date:
Fri Dec 13 00:40:55 2013 +0000
Revision:
0:92ab4f4846f8
Child:
1:15b5edb4a91f
RevB Version of TransparentUSBCDC.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dixter1 0:92ab4f4846f8 1 #include "mbed.h"
dixter1 0:92ab4f4846f8 2 #include "C027.h"
dixter1 0:92ab4f4846f8 3 #include "WANDongle.h"
dixter1 0:92ab4f4846f8 4 #include "USBSerialStream.h"
dixter1 0:92ab4f4846f8 5 #include "UbloxCDMAModemInitializer.h"
dixter1 0:92ab4f4846f8 6 #include "UbloxGSMModemInitializer.h"
dixter1 0:92ab4f4846f8 7
dixter1 0:92ab4f4846f8 8 DigitalOut mdm_activity(LED);
dixter1 0:92ab4f4846f8 9
dixter1 0:92ab4f4846f8 10 int main()
dixter1 0:92ab4f4846f8 11 {
dixter1 0:92ab4f4846f8 12 int led_toggle_count = 5;
dixter1 0:92ab4f4846f8 13
dixter1 0:92ab4f4846f8 14 // the instantiation of the type, calls C027::C027
dixter1 0:92ab4f4846f8 15 C027 c027;
dixter1 0:92ab4f4846f8 16
dixter1 0:92ab4f4846f8 17 c027.mdmPower(true);
dixter1 0:92ab4f4846f8 18
dixter1 0:92ab4f4846f8 19 #if 0
dixter1 0:92ab4f4846f8 20 while(1) {
dixter1 0:92ab4f4846f8 21 mdm_activity = !mdm_activity;
dixter1 0:92ab4f4846f8 22 wait(0.2);
dixter1 0:92ab4f4846f8 23 }
dixter1 0:92ab4f4846f8 24 #else
dixter1 0:92ab4f4846f8 25 while( led_toggle_count-- > 0 )
dixter1 0:92ab4f4846f8 26 {
dixter1 0:92ab4f4846f8 27 mdm_activity = !mdm_activity;
dixter1 0:92ab4f4846f8 28 wait(0.2);
dixter1 0:92ab4f4846f8 29 }
dixter1 0:92ab4f4846f8 30 #endif
dixter1 0:92ab4f4846f8 31
dixter1 0:92ab4f4846f8 32 // open the mdm serial port
dixter1 0:92ab4f4846f8 33 WANDongle mdmDongle;
dixter1 0:92ab4f4846f8 34 USBSerialStream mdmStream(mdmDongle.getSerial(1/* the CDC usually 0 or 1, LISA-C requires CDC1*/));
dixter1 0:92ab4f4846f8 35 USBHost* host = USBHost::getHostInst();
dixter1 0:92ab4f4846f8 36 mdmDongle.addInitializer(new UbloxCDMAModemInitializer(host));
dixter1 0:92ab4f4846f8 37 mdmDongle.addInitializer(new UbloxGSMModemInitializer(host));
dixter1 0:92ab4f4846f8 38
dixter1 0:92ab4f4846f8 39 // open the PC serial port and (use the same baudrate)
dixter1 0:92ab4f4846f8 40 Serial pc(USBTX, USBRX);
dixter1 0:92ab4f4846f8 41 pc.baud(MDMBAUD);
dixter1 0:92ab4f4846f8 42
dixter1 0:92ab4f4846f8 43 while (1)
dixter1 0:92ab4f4846f8 44 {
dixter1 0:92ab4f4846f8 45 uint8_t buf[64];
dixter1 0:92ab4f4846f8 46 size_t len;
dixter1 0:92ab4f4846f8 47 int i;
dixter1 0:92ab4f4846f8 48
dixter1 0:92ab4f4846f8 49 if (!mdmDongle.connected())
dixter1 0:92ab4f4846f8 50 {
dixter1 0:92ab4f4846f8 51 mdmDongle.tryConnect();
dixter1 0:92ab4f4846f8 52 }
dixter1 0:92ab4f4846f8 53 else
dixter1 0:92ab4f4846f8 54 {
dixter1 0:92ab4f4846f8 55
dixter1 0:92ab4f4846f8 56 // transfer data from pc to modem
dixter1 0:92ab4f4846f8 57 len = mdmStream.space();
dixter1 0:92ab4f4846f8 58 if (len>0)
dixter1 0:92ab4f4846f8 59 {
dixter1 0:92ab4f4846f8 60 if (len > sizeof(buf))
dixter1 0:92ab4f4846f8 61 len = sizeof(buf);
dixter1 0:92ab4f4846f8 62 for (i = 0; (i < len) && pc.readable(); )
dixter1 0:92ab4f4846f8 63 buf[i++] = pc.getc();
dixter1 0:92ab4f4846f8 64 if (OK == mdmStream.write(buf, i))
dixter1 0:92ab4f4846f8 65 /* do something? */;
dixter1 0:92ab4f4846f8 66 }
dixter1 0:92ab4f4846f8 67 // transfer data from modem to pc
dixter1 0:92ab4f4846f8 68 len = mdmStream.available();
dixter1 0:92ab4f4846f8 69 if ((len>0) && pc.writeable())
dixter1 0:92ab4f4846f8 70 {
dixter1 0:92ab4f4846f8 71 if (len > sizeof(buf))
dixter1 0:92ab4f4846f8 72 len = sizeof(buf);
dixter1 0:92ab4f4846f8 73 if (OK == mdmStream.read(buf, &len, len))
dixter1 0:92ab4f4846f8 74 {
dixter1 0:92ab4f4846f8 75 for (i = 0; (i < len); )
dixter1 0:92ab4f4846f8 76 {
dixter1 0:92ab4f4846f8 77 mdm_activity=!mdm_activity;
dixter1 0:92ab4f4846f8 78 pc.putc(buf[i++]);
dixter1 0:92ab4f4846f8 79 }
dixter1 0:92ab4f4846f8 80
dixter1 0:92ab4f4846f8 81 // default the led to off
dixter1 0:92ab4f4846f8 82 mdm_activity=0;
dixter1 0:92ab4f4846f8 83 }
dixter1 0:92ab4f4846f8 84 }
dixter1 0:92ab4f4846f8 85 }
dixter1 0:92ab4f4846f8 86 }
dixter1 0:92ab4f4846f8 87 }