GP32 Interrupts A.b.c

[M-.-n]

Hello again,

I'm pretty fine in the development of my tracker's UI so now I'm going to head in the audio part. I got a few samples from here and there but I'd like to dig more into the basic principle and first get a grip on the interrupt mechanism. As far as I can tell I'm going to need a few of them:

+ I'm using already one through the gp_RTC() routines (for basic timestamping of events)
+ Use one for tempo based operation (to go to next pattern, see if next note should be played and so on). If my calcs are correct; I'll need something that runs at at least 10 msecs for sustaining 24 ticks/beat at 200 BPM
+ I guess one for feeding the wav buffer (but haven't looked yet how the sample code worked)

Although I found some talks about interrupts on the board, I haven't found any detailed information on what's available, dependency on CPU speed; what is used by the system, etc...

Would someone be kind enough to point me to the right direction ?

Many thanks
M-.-n

 

[WhiteFalcon]

Even though I dont know much about the interrupts of the GP32 yet, I am sure everyone here would point you the the GP32 section of Mr. Spiv's pages. So go there, go into the download - documents section and get this file: um_s3c2400x_rev1.1.pdf

http://www.deadcoderssociety.tk/

It covers lots of stuff including interrupts.

 

[M-.-n]

Thanks ! I was not aware of that doc.;; looks like heavy reading but everything seems to be in there