Am Freitag, 25. September 2015 15:00:01 UTC+2 schrieb hllpc: > > You mean, FreeBasic? :D:D >
Some languages are beginners friendly, other are not. You wasted a lot of time before you dropped cross compiling. You'll find further optimization potential in replacing PuTTy by an SSH client with X-server emulation, which makes it possible to get grafics output (ie. from example Oszi) from BBB on your PC screen. Or replacing wodniws by LINUX on your PC will skip all this installation issues, you can focus on your custom targets. Anyway, it's up to you to manage you progress speed. > Thank's for the clarification, the 'funny' thing was that in my pc I > dawnloaded the new version of libpruio for reference, but in the bbb I > installed the old one. > Can I ask something else about a function of the library? I've troubles > understand how pruio_config(io, Samp, Mask,Tmr, Mds) work in rb mode, in > particular the mask parameter. > Let's say that I want to sample 2 channel, AIN-1 and AIN-2 (Mask =0b110), > Samp is the buffer size in term of sampling set so 2(channel)x(sample per > channel that I want to 'collect' in the buffer, say 50), Tmr =1e6 ns and > Mds= 4. > > The Value array will be something like: > Value[0] | 1. sample AIN-1 > Value[1] | 1. sample AIN-2 > Value[2] | 2. sample AIN-1 > Value[3] | 2. sample AIN-2 > ... > Value[98] | 50. sample AIN-1 > Value[99] | 50. sample AIN-2 > > What's the difference between this and Single mode? or which I have: > > Value[1] | sample AIN-1 > Value[2] | sample AIN-2 > > In this case Samp=1 as the comments in pruio.bas says or 50 (samples per > channel that I want to 'collect' in the buffer) and then I'll have 25 > samples per channel? > > > > > > > > > > > The documentation is your friend. - Mask is not a channel mask, it's a step mask. - Bit-0 enables the charge step - Bit-1 enables step 1, ..., bit-16 enables step 16 - Setting bit 1 in mask does not mean measuring AIN-1. It means enabling step 1, which is measuring AIN-0 by default in libpruio. - You can either use default configuration and mask step 2 (AIN-1) and step 3 (AIN-2) as Mask = 1 << 3 | 1 << 2 or define new steps (range 9 to 16) or override default steps (range 1 to 8) with your custom configuration by calling pruio_adc_setStep() and then mask those customized steps with pruio_config(). In single mode you have one value per active step. This value gets updated continously. All IO (GPIO, ADC, CAP, PWM) is controlled at the same priority. This means you may see some latency in the ADC samples (a few ns). In contrast the ADC has priority in MM and RB mode. The starts of the ADC measurements are performed with accurate timing. No further IO (GPIO, CAP and PWM) in version 0.2 (and further IO with lower priority in next versions). BR -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
