ctt-dump

Texas Instrument's Clock Tree Tool(CTT) is an interesting visualization tool for various internal clock tree instances.

http://omappedia.org/wiki/CTT has more details on how to use the tool.

One of the best debug facility is the ability of CTT to read-in register values to visualize Clock tree for most available TI platforms. This tends to be the same as the read-out of registers.

To see the platforms for which CTT is available, see: http://focus.ti.com/general/docs/wtbu/wtbudocumentcenter.tsp?templateId=6123&navigationId=12667

Obviously, due to licensing constraints, we may not include the appropriate platform's CTT in this repository.

HOWTO BUILD

• make - to build a binary
• make clean - to cleanup
• make sandbox - testing binary build (no register access done)

NOTE: Also depends on 'CROSS_COMPILE' variable for compiler choice.

HOWTO USE

However, a simple utility provided by ctt-dump is used as follows for any of the supported platforms:

• download CTT tool appropriate for your platform
• startup CTT and generate a read-out (menu-> Register Dump -> Dump-out) -> This generates, what we call a rd1 file - example: use test.rd1
• copy the test.rd1 file to the target platform
• Run:

ctt-dump -i test.rd1 -o output.rd1

This generates an output.rd1 which can then be imported to CTT.

OR

ctt-dump -i test.rd1

This outputs to console the rd1 output file which could be copied into a file for import into CTT.

• In CTT, (menu-> Register Dump -> Read-In) - the output from ctt-dump and once you setup the sysclks needed, you should ideally have the appropriate clock tree for visualization

WARNING

• ctt-dump is a userspace utility - there are no hooks to control clock mutexes, or other OS specific details. So if the register configurations change while the utility runs, there is nothing much one can do.
• CTT data ASSUMES that the CTT is mature enough, remember that CTT for certain platforms may be hand generated and could have errorneous data. - in such cases, please provide feedback to CTT, this tool tries to remain simple.

HOWTO CONTRIBUTE

• just send me github pull requests/use the github portal to file defects.