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Hi C6x, I am using TI6711 DSP with PCM3003 daughter card. And I have used herdware interrupt for interface with input and output signal samples. The program runs in Real-time mode, so I was not able to use ( Printf) function for printing. For this reason , I choose to use Log_printf real-time printing tool for analysis. But I couldn't get what I expect. Since the priority of the hardware interrupt is highest, the Log_printf prints what I need when the hardware interrupt stopped from excution. So I am planning to use Scheduling , put the Log_printf in a Task and make the priority higher than hardware interrupt. This is what I have in mind. But I am not sure it is correct or not. If it is possible , could you give me any useful idea concerning the problem. Thanks in advance. Regards Aziz

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--- Aizezi Abuding <> wrote: > I am using TI6711 DSP with PCM3003 daughter card. > And I have used > herdware interrupt for interface with input and > output signal samples. > The program runs in Real-time mode, so I was not > able to use ( Printf) > function for printing. For this reason , I choose to > use Log_printf > real-time printing tool for analysis. But I couldn't > get what I expect. > Since the priority of the hardware interrupt is > highest, the Log_printf > prints what I need when the hardware interrupt > stopped from excution. > So I am planning to use Scheduling , put the > Log_printf in a Task and make > the priority higher than hardware interrupt. hm... well - I'm not 100% sure about it, but I think it's not possible to set higher priority to the TASK than to the HWI... and that is "by definition" - the point of having HWI, SWI, TSK is to "prioritize" - from what I know all HWI have higher priority than any SWIs and TSKs - also - all SWI have higher priority than TSKs... hm... now you got me thining - is it even possible to call LOG_printf from TSK object? hm... sounds strange to me... > This is what I have in mind. > But I am not sure it is correct or not. If it is > possible , could you give > me any useful idea concerning the problem. hm... I don't really know what was your problem with using LOG_printf, but I'd assume it's "interruptible" - meaning that even if your printing procedure takes longer than the period between interrupts from PCM3003 - it should work fine - unless you're trying to print every single sample or something - because maybe then the LOG_printf is simply too slow - I dont' know... good luck... Wojciech Rewers __________________________________

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