Hi Expert,
In GCv2, the online editor gives a boilerplate for implementing custom codec as
CustomCodec.prototype.encode = function(target, jsonObj) {
this.txPktCtr++;
/* TODO: Rework the following example code as required for your app:
// The following example code shows how to encode property values from the GUI into
// a JSON formatted string. You would use this if you wanted to intercept data from the GUI
// and rework it before passing it on to the target device.
try{
this.txMsgCtr++;
if (this.txMsgCtr % 256){
gc.console.log("CustomCodec","Number of tx messages to target: "+this.txMsgCtr);
}
var strToSend = ""; //JSON.stringify(jsonObj) +"\n";
// send the string to the target
target(strToSend);
}
catch(ex){
gc.console.log("CustomCodec","CustomCodec.encode (to target): exception="+ex);
}
*/
};
and I was able to modify it for my custom procotol over uart.
However, things seem getting different in GCv3, there is also a boilerplate but it is for json data as below, I am not clear how to adapt it.
My questions are:
1. For the decode function, is that I just read the characters in variable data, packet the information I needed and send it by invoking "this.targetDecoder.decode"? Is there any other things should be carried out for data binding?
2. I will packet float number as four bytes in the uart stream, and there will be many float numbers, so I need efficient decoding method to restore floats from the bytes. I notice the ArrayBuffer would be a nice way to cast the bytes to float as in C. Can I change the variable data to ArrayBuffer here?
3. Is it possible to dealing with ~2Mbps uart stream with GUI composer?
Many thanks!
