Hi Raquel, Thanks for the suggestions. I looked through the example code and it was informative. What interested me was the following functions, as I am trying to do something similar with my code: gtt_setup_region() // sets up a touch region, should default to 'active on completion' according to th...

Hello, I have a GTT70A and am communicating with it over I2C. Since I2C is a master driven protocol and my microcontroller is the master and the LCD is the slave, what query or command do I need to send to fetch any touch events that may have happened from the LCD? I can see that in the protocol man...

Hi Raquel, Success! I was able to use the I2C bus decoding feature of my oscilloscope software to decode quickly and concisely the transactions going on and I have it mostly working....well enough I guess. This plot shows the {254, 55} command to fetch the module ID. I thought it should be 37636 dec...

I am having difficulty with my I2C master interface getting it to respond for a read operation after reading your last post and attempting to follow it carefully. 1. I can set the communications channel to I2C with 254 5 2 as you pointed out and get an ACK. 2. I can follow this up with a write scrat...

Hi Raquel, Thank you for your help, I did some further testing on the I2C bus and tried the following commands which resulted in an ACK, but no response on the I2C bus: {254, 0}; // get module protocol revision {254, 55}; // get module type, should be 37636d = 1001 0011 0000 0100 The second command ...

Hi Raquel, I will try to turn off flow control with 254 58 0 as you suggest. I tried using the I2C interface and didn't receive an ack bit (asserted low) as I would have expected when doing a read or a write request. I have attached a screen shot of SDA and SCL lines during this transaction. As you ...

Hello, I am having trouble getting any return message out of my GTT70A-TPC-BLM-B0-H1-CT-V5. I can send text to the display and it displays it, but when I attempt to use the echo command (254 255) or the get protocol revision (254 0) I get only a constant 3.3V high activity on the Tx line coming from...