I'm work in a project that I need to create a code for a TEXAS DSP (TMS320F28335) that this code will make a sigma boot.
For start to do it the first thing that I did is read the pdf "SigmaStudio Basic uC Integration Tutorial.pdf"
After read it I did the same program at Sigma Studio Like This.
This work fine....I can program My sigma and listen the beep!.
To understand the I2C communication I plugged My Oscilloscope at pin 1 SCL and pin 2 SDA and I click at box mute in Sigma Studio and I saw this!
I know that is so beautiful..
Now I saw what I need to do with My uC to make a mute in my sigma.
and I try to create the same waveform, and I did some thing similar!
My waveforme without plug at sigma!
At this picture you can see that I dont have the ACK because I did plugged the SCl and the SCL!
Now I thought the is the time to plug the uC at the sigma and I tried to did it!
At First point I write my program at EPROM and now I don't need the SigmaStudio to listen the beep, I just need to change the S5 to EPROM and turned on the Sigmakit (EVAL-ADAU1701MINIZ).
After I did it I plugged the SDA and the SCL at J8 connector at pin 1 and 3 and I did my uC write the 0x68 at sigma!
But I dont have the ack again!!!
My question is:
Is correct to plug my SDA and SCL at J8 and the switch S5 for the EPROM side?
Do you know If I need to plug another wire At the J8?
Is possible Do it, make the boot with the EPROM and after try to write a address by I2C to change some parameter?
Do you know if I was missing something?
Thanks For all
and sorry about my English!