Thingmagic Mercury API v1.23.0 Instrukcja Użytkownika Pobierz pdf (Strona 109)

Custom Serial Transport Naming

Advanced Customization 109

Changes Required for C

Starting with version 1.23.0 of the MercuryAPI SDK, we have added a serial transport

dispatch table to store the transport scheme name and factory init functions.

We have also modified the TMR_create() to use the dispatch table for serial readers.

So in order to use a new transport layer, the user needs to touch the Mercury C API in

one place only: In TMR_Serial_transport.h, you will need to add the prototype of the

factory init function.

typedef TMR_Status (*TMR_TransportNativeInit)(TMR_SR_SerialTransport

*transport, TMR_SR_SerialPortNativeContext *context, const char

*device);

TMR_Status TMR_setSerialTransport(char* scheme,

TMR_TransportNativeInit nativeInit);

main ()

{

……

ret = TMR_setSerialTransport(“Custom scheme name”, &”reference to

the factory init func”);

}

In the “c\src\samples” directory, there is source code for this example,

readcustomtransport.c, which shows how to enable reading over a “tcp” custom serial

transport layer (created by serial_transport_tcp_win32.c and serial_transport_tcp_posix.c

in the c\src\api directory).

1 2 ... 104 105 106 107 108 109 110 111 112 113 114 ... 127 128

Brak uwag

Thingmagic Mercury API v1.23.0 Instrukcja Użytkownika Strona 109