Dear all,
I am trying to talk with an external device via ioio-otg twi ports. I would
like to write and read data to/from the registers of my external device.
Here are samples from my code:
byte[] request=new byte[]{0x01}; //data that I want to write
byte[] response = new byte[13];
In setup()( function:
i2c=ioio_.openTwiMaster(2, TwiMaster.Rate.RATE_100KHz, false);
In loop() function:
if(i2c.writeRead(0x63, false, request, request.length, null, 0)) { //Here, I
only want to write
if (i2c.writeRead(0x63, false, null, 0, response, response.length))// Here, I
only want to read
{
for (int i = 0; i < 13; i++) {
pw.print(String.format("%02X", response[i]));
pw.print(" ");
}
}
Both writeRead() functions return true.
However, the data 0x01 in request array is interpreted as an internal address
of a register in the device. I could not get 0x01 interpreted as data and
written into external device register.
This may not be very clear, but maybe there are some people who can already
spot the problem.
Thank you in advance,
Regards.
--
You received this message because you are subscribed to the Google Groups
"ioio-users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at https://groups.google.com/group/ioio-users.
For more options, visit https://groups.google.com/d/optout.
