Lot of pushing done

- Debug Infrastructure Pushed
- Pipelined Memory Pushed
- Will do heart beat tomorrow

Daily Snippey

Debugger program with cdc in done
H2u firmware with cdc debug done with timing errors. But it works. Worked really hard on it but did not meet timing.
Memory pipelining done for all encoding quality.
Today (Saturday) we have a Church outing so I will fix everything and commit them on Sunday.
Cheers!

EDIT: The title was a typo because I was using my tab. But it sounds cool.

Daily Snippet

Video Link

Daily snippet

Oops missed yesterday's blog.
- Heart beat feature completed
- Sent debug data out of cdc
- working on debugger program
- major changes to debug module

HDMI2USB Serial Controller Port

When we connect HDMI2USB to host, two CDC are enumerated. One is for UVC(ACM0) and the other is for controller port(ACM1).
The controller port can be used to control certain features of HDMI2USB and also display status of USB, jpeg encoder etc.
To access this use any serial terminal program like gtkterm. The commands send to the control port is in ASCII. The ascii commands are two byte, first is the address(like U or u for USB TOP) and the second is the command you want to send to that address (like S or s for status). So if you send US, it will return the status of the USB Top module. Since the terminal I am using allows only hexadecimal commands, so I have to convert the ASCII commands to their hex equivalent (which is irritating).

While creating the debug infrastructure, I completely neglected that there is already a lot of infrastructure already built in due to the control port. Some feature that I have added like frame rate etc can be exposed via the control port. Then we can have a debugger using the control port. Plus it can be used to control features of firmware which is even more awesome. What say mithro/shenki?

Controller Port

I fixed up Heart Beat module as Karl required it. Mithro asked me to add functionality to turn it off/on using controller port. To do that I dug through the code of how data is send through the second ACM port that is enumerated via HDMI2USB. I was finally able to do it.

Daily Snippet

Instead of two encoder, I tried changing the state machine to drop frames as low as possible but it didn't work. Will try to work on it tomorrow.
Also I changed the code of the heart beat feature I had implemented long ago. I did not have atlys board when I implemented it so came to know about a bug in the code when I ran it on the board. Eventually was able to fix it and improved the code to use lesser number of flops.
Also mithro added me to the TimVideos Hardware hacker team. It felt nice, actually very nice. It actually felt like this:

So can I now update my linkedin profile? But before that let me learn Git coz when shenki talks about stuff like bisecting, rebase I am like this