A test of creating custom classes for control over RPC. Creates an LED class with member functions callable over serial.
Diff: LED.h
- Revision:
- 4:840f6002b8c2
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/LED.h Wed Sep 29 01:48:43 2010 +0000 @@ -0,0 +1,66 @@ +/* Test of custom RPC classes. An introduction to the RPC environment. + +Based heavily off of code from iva2k +http://mbed.org/users/iva2k/programs/pub_iva2k_ethrpc/gpdz3x +in turn based off of servo library +http://mbed.org/projects/cookbook/svn/Servo/trunk/Servo.h +http://mbed.org/projects/cookbook/svn/Servo/trunk/Servo.cpp + +This code features heavy copy-pasting, so I take little credit for the content. My goal was not to create original code, but to put together a basic introduction +to help myself and others understand how to implement custom classes in RPC. + +This code creates a custom RPC class called LED. The LED class contains two member functions, toggle and blink. +Normally when compiling a program the original names of the objects are lost. In order to be able to call these functions by name after compiling, we must save the name in a string. +The name of our object and necessary arguments for the initialization function are saved using the get_rpc_class() function. The name of each member function and their arguments must also be +registered using get_rpc_methods(). + + + + +From: http://mbed.org/cookbook/Interfacing-Using-RPC + +RPC Commands are in the format: "/<Object name>/<Method name> <Arguments separated by spaces> +If you send just "/" mbed will return a list of objects that can be used +If you send "/<object name>/" then mbed will return the methods which can be used on this object. + +I haven't finished digging through this yet, but I think most of the documentation for the RPC functions is in the files: +http://mbed.org/projects/libraries/svn/mbed/trunk/Base.h +http://mbed.org/projects/libraries/svn/mbed/trunk/rpc.h + + +*/ +/** Includes + +* +*/ +#include "mbed.h" +#include "rpc.h" + + +/**Class: LED +* +*attached to an LED pin, contains simple blink functionality over serial +*/ +class LED :public Base { //make sure to define the class with inheritance from the Base RPC class. +public: + /** + *Constructor + */ + LED(PinName mypin, const char *name=NULL); + /**Blink LED*/ + void blink(int n); + /** switch state of LED*/ + int toggle(); + /** pin LED is attached to*/ + DigitalOut LEDpin; + /**state of LED + */ + int state; + +#ifdef MBED_RPC //this code will not compile unless we have included the rpc.h file. So this class can also be used without RPC. + /**Defines the methods available over RPC*/ + virtual const struct rpc_method *get_rpc_methods(); + /**Defines the RPC class*/ + static struct rpc_class *get_rpc_class(); +#endif // MBED_RPC +}; \ No newline at end of file