Hi I am running this on Windows 7.
I am trying to set up a dual communication towards an external serial
device on COM1.
What happens is that I will only receive (fs.read) the first incoming
character.
Before I receive that character I am not able to send any character,
but after receiving, I can send over and over again. But not receive
any more.
Here is the code:
var fs = require('fs');
var fd;
var Buffer = require('buffer').Buffer;
var buffer = new Buffer(100);
fs.open("\\\\.\\COM1", "w+", function(status, _fd){
fd = _fd;
if(status){
console.log(status.message);
return;
}
fs.read(fd, buffer, 0, 100, null, function(e,l,b){
console.log("Read " + l + " bytes.");
return;
});
});
var buf = new Buffer('BBBB\n');
var stdin = process.openStdin();
stdin.on('data', function(chunk) {
// For now I just send the four Bs when [Enter] is pressed.
fs.write(fd, buf, 0, buf.length, null, function(err,written){
if(err)throw err;
console.log(written + " characters written.");
});
});
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