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By the way, how do you redirect an interrupt ? through a kernel function like sceKernelRegisterIntr/sceKernelRegisterSubIntr ? Yep, this is what i'm doing while experimenting by now...is it wrong? of course if you have an example of non-trivial code where the thread switch is the main performance i...

Very nice! Anyway, the idea of a barcode battler "port"....think about it!!! :) As far as I know we can't use the FIFO at all with the homebrew toolchain That's all i needed to hear. Then the best solution is to reproduce it in software like i'm trying to do. How if we make an "offici...

@tyranid I don't see how using an interrupt is going to save you much in the way of time I rely on the fact that a wait-for-flag function is always more or less a poll-and-wait, something like while(!isFlagSet(flag)) sleep(); while interrupt handlers a...

no idea what the equivalent is for audio but I question your need for using one :) well, there are TONS of motivations to drill down on interrupt usage...to be coherent with my initial post, i could mention a faster audio manager. Speaking on the base of my pc programming experience, i think PSP_AU...

I'm trying to figure out the usage of some PSP interrupts. I searched and found only examples on the SIO port. To be clearer, I do know how to set up an handler , but i don't know how to manage the rest - i'm referring to the part /* Read out the interrupt state and clear it */ u32 stat = _lw&#4...

AHAH!!! Nice name for a fiter! Anyway, after some experimenting, i can say that this is not enough for me. I think my problem rely etirely on the odd behaviour of the built-in FIFO buffer. I CANNOT filter like you do, because at my baud rate the "bullshit" does corrupt the last data byte o...

Thank you for reply! I suppose my problem comes from many causes combined together...Anyway I workarounded it by implementing a circular FIFO buffer in the interrupt handler...so the reading loop is tight enough, and some logic is deferred to another thread... I'm sure that if i would have posted co...

I managed to investigate on the unexpected behaviour i've descripted in the last post; it sounds weird, but it seems to depend from HOW MUCH i use pspDebugScreenPrintf (i suspect that ANY more or less time consuming action would take to the same situation). In short, if i do ch = sioReadChar&#40...

Hi all, i would like to thank you all for all the support you give to me, because even if i'm programming on PSP since a year, this is my first post! I'm developing a serious serial console as a starting point to create other apps SIO is involved in. The code (i will eventually post soon) is obvious...