Other Parts Discussed in Thread: SYSBIOS, AM3352
Tool/software: Code Composer Studio
As much as I hate to ask "teach me" questions, I am at the end of my rope. I struggled with this my entire Christmas vacation, and threw up my arms saying "there is no good support" . I'm back at it again, and still getting nowhere after three days.
All I want to do it learn GPIO on the Beagle Bone Black. (for now). And do it with Sysbios. Not Linux.
I tried this: e2e.ti.com/.../448904 and got a bunch of undefined and then unresolved.... But it aslo uses "StarterWare", which seems to be something to move AWAY from, not toward. However a some CCS package installed it in C:\ti\pdk_am335x_1_0_5\packages\ti\starterware
I found several example projects on other web sites. They either don't compile, or crash. But they are from postings that are two years ago or so.
I did find one example, inside a PDK. It works, but there is no explanation of anything. Just hundreds of lines of copyright statements.
My questions are philosophical.:
In the example I found GPIO_LedBlick_bbbAM335x_armTestProject uder the package "C:\ti\pdk_am335x_1_0_5\packages\MyExampleProjects" (factory install)
It uses Sysbios, and calls "BIOS_Start()" - But there are no "tasks" ...
I go through Eric Wilburs videos to learn SysBios and tasks, then examples don't use it, or try to mask how it's implemented.
Where is the Task_create() called?
Where is the actual task?
As for accessing IO pins, where is any doc on the API collection that uses all those GPIO_xxxx calls?
I understand that there are complexities in doing this kind of access in an ARM device (I came across little dibbles of information about clocking and synchronization), but isn't there a step by step tutorial? Like other suppliers?
Please! Can someone offer a stating point and path to follow?
-Scott Weber
