ANT Forum

Hello,
I'm a newbie to ANT, so there's probably something I'm missing.
I setup my system using Synchronous Serial Interface with Byte control. I am able to get the ANT chip out of reset. I can then Synchronize with the chip and read the Startup Message Response from the ANT.
I then configure any parameter on the chip. (at least, I think I do, because I can read the 0xA5 as the first byte,and I write all my data including the checksum)
I then wait for SEN to go low, but am never successful in seeing that?
What am I doing wrong?

Regards      

Does SEN rise before you send the last byte of the message? Can you obtain a timing diagram showing the reset message and the command you try to send?      

Thanks for the Reply Alejandra,
Actually, I found that the problem was the way I was calculating the checksum.
Using the Interfacing with ant general purpose chipsets and modules document on page 12, it showed how to calculate the checksum, this showed 0xA5 instead of 0xA4.. Once I found that, I was able to correct my code.



Thank you for your quick response.

Regards!