#pragma interrupt

Started by Roger Flor in Freescale DSPs17 years ago 1 reply

Hello! I have a question on #pragma interrupt In the Isr_led example for the DSP56F805, all the #pragma interrupt ...

Hello! I have a question on #pragma interrupt In the Isr_led example for the DSP56F805, all the #pragma interrupt directives (#pragma interrupt, pragma interrupt called, #pragma interrupt saveall) were written outside of functions (just before the function


A/D interrupt

Started by Elefante Alessandro in Freescale DSPs16 years ago 1 reply

HI, I work with DSP56F807.I sample two signals with two different A/D (T-sample=2us). Is it possible to minimize C code...

HI, I work with DSP56F807.I sample two signals with two different A/D (T-sample=2us). Is it possible to minimize C code that control the A/D interrupt routine( to read the FIFO) in order to manage interrupt priority( and the interrupt time)?


Help with fast interrupt: CW/PE on 56f8232

Started by robatacp in Freescale DSPs16 years ago 3 replies

Hi, I'm using Processor Expert under CW for a 56F8323 project and could use some help implementing the fast interrupt capability...

Hi, I'm using Processor Expert under CW for a 56F8323 project and could use some help implementing the fast interrupt capability of the 56800E processor. I'm trying to convert a working high priority interrupt to the Fast Interrupt mechanism to lower processing overhead


Unhandled interrupt message?

Started by Nitin Madhukar Yewale in Freescale DSPs17 years ago 8 replies

Hi, I am using Quad timers and doing floating point calculation. [56F827] I am getting following message while debugging my...

Hi, I am using Quad timers and doing floating point calculation. [56F827] I am getting following message while debugging my code. how to know which interrupt is not handled? if divide by zero interrupt occurs then how will I know about the same?


GPIO interrupts in DSP56F827

Started by atid2 in Freescale DSPs17 years ago 2 replies

Hi, I am trying to use the GPIO interrupt mechanism but I have a problem: Immediately after I enable the pin interrupt - the...

Hi, I am trying to use the GPIO interrupt mechanism but I have a problem: Immediately after I enable the pin interrupt - the interrupt occurs. It happens every time I try it, no matter what the polarity is or any other parameters I configured (I think I tried them all).


DSP56F807 interrupts

Started by rotronics2001 in Freescale DSPs16 years ago

hello, can someone explain me how can i do to interrupt an interrupt subrootine? With "pragma interrupt" it doesn't work. ...

hello, can someone explain me how can i do to interrupt an interrupt subrootine? With "pragma interrupt" it doesn't work. Thank you.


Interrupt Concept

Started by praveen in Freescale DSPs15 years ago

Hi all, I am trying to run a small interrupt program using IRQA(DSP56F801)but the interrupt action is not occuring when i...

Hi all, I am trying to run a small interrupt program using IRQA(DSP56F801)but the interrupt action is not occuring when i press IRQA button . The following is the code void main() { int x,y; // STEP 1 : To take care I1 and I0 Bits


DSP56F827 - Un-handled Interrupt: finding source??

Started by bmbmz123 in Freescale DSPs16 years ago

Hello all, It seems I'm getting Unhandled Interrupt from some source. I get to archUnhandledInterrupt() in arch.c file. ...

Hello all, It seems I'm getting Unhandled Interrupt from some source. I get to archUnhandledInterrupt() in arch.c file. How can I find the source of this interrupt when I reach this routine? I am not THAT familiar with the ITCN registers and operation.


Re: Interrupts on the 56303

Started by Graeme Fisher in Freescale DSPs17 years ago 3 replies

Hi all Does anyone know how long in clock cycles it takes for an interrupt to be serviced form the time that the interrupt...

Hi all Does anyone know how long in clock cycles it takes for an interrupt to be serviced form the time that the interrupt occurs? I have set up one of my host port pins as an output and am using the timer1 compare interrupt to toggle that pin. If I set the reload value


Service interrupt during DFlash erase on 56F805 and 56F8345

Started by Anonymous in Freescale DSPs14 years ago

Hi, I want to know if it's possible to continue to service interrupt during page erase or word program on Data Flash. I have a periodical...

Hi, I want to know if it's possible to continue to service interrupt during page erase or word program on Data Flash. I have a periodical timer interrupt (about 150 us) that stop when I erase a page of Data Flash. As I read in the DSP user's manual, it takes 40ms to do a page erase and I can't let the interrupt disable for that long. Thanks Bruno


IRQA interrupt handling....; Art Johnson

Started by Nitin Madhukar Yewale in Freescale DSPs17 years ago 1 reply

Hi, I am using 56F826 for my project. I have configured IRQA interrupt as edge triggred and it is connected to external ADC. After...

Hi, I am using 56F826 for my project. I have configured IRQA interrupt as edge triggred and it is connected to external ADC. After EOC (4.1 micro seconds) it will generate interrupt and I will have to read digital value. But I can see that IRQA pin is generating interrup


RE: HW stack

Started by Art Johnson in Freescale DSPs17 years ago

Hi Dan, What we do here to get around this problem, is to use the Motorola SDK Interrupt Dispatcher and a "Normal" interrupt....

Hi Dan, What we do here to get around this problem, is to use the Motorola SDK Interrupt Dispatcher and a "Normal" interrupt. How to do this is described in several of my earlier postings to the motoroladsp discussion group. The SDK Interrupt Dispatcher saves and res


unexpected interrupt, dsp56858

Started by cwolfatwork in Freescale DSPs17 years ago

This one's not earth shaking, but it is a puzzle. I'm using a dsp56858 evm, without all the SDK 'fog'. As a simple test, I wrote a ...

This one's not earth shaking, but it is a puzzle. I'm using a dsp56858 evm, without all the SDK 'fog'. As a simple test, I wrote a handler for the IRQB interrupt, which is generated by a pushbutton on the eval board. I made the interrupt be edge-triggered. The handler just sets a boo


RE: fopen() problem

Started by Art Johnson in Freescale DSPs17 years ago

What is happening is that the fopen() call is generating an interrupt, and there is no interrupt vector defined for that interrupt....

What is happening is that the fopen() call is generating an interrupt, and there is no interrupt vector defined for that interrupt. If you are using the Motorola SDK, you need to add the following #define to the file "appconfig.h" (I have attached a sample appconfig.h file):


Normal, Fast and Super Fast interrupt on 56805

Started by Bruno Tremblay in Freescale DSPs16 years ago

Hi, I want to speed up the response of my interrupt on the input 1 of timerA and after reading the Embedded SDK...

Hi, I want to speed up the response of my interrupt on the input 1 of timerA and after reading the Embedded SDK Programmer's Guide I'm still confuse on how can I specify this interrupt as Fast or Super Fast. I know with a Super Fast ISR I must manage the context


UCOS-II and separate stack for interrupt

Started by Anonymous in Freescale DSPs17 years ago

I'm trying UCOS-II for 56800. RAM usage is a problem for my application. Does anyone is interest or have develop a separate stack...

I'm trying UCOS-II for 56800. RAM usage is a problem for my application. Does anyone is interest or have develop a separate stack for interrupt level code feature ? This for reduce tasks stack size when interrupt use a lot of RAM. Regards, Giuliano


Small C: SCI interrupt-driven receive example

Started by David D in Freescale DSPs17 years ago

I've hacked at the SCI echo example in the original release of the Small C port so that the SCI receive portion is interrupt...

I've hacked at the SCI echo example in the original release of the Small C port so that the SCI receive portion is interrupt driven. The resultant assembly output of the compiler needs to be edited so that the interrupt service routine ends with an RTI instruction instea


GPIO interrupt callback?

Started by drmapl in Freescale DSPs17 years ago 5 replies

Hi all, using a 56F805 I want to use the level sensitive interrupt input on a GPIO line. While I find all sorts of high level...

Hi all, using a 56F805 I want to use the level sensitive interrupt input on a GPIO line. While I find all sorts of high level routines to set various operation parameters I don't know how to set the interrupt callback function. How can I set this callback function? Do I have to


SCI interrupt

Started by jongsooatyh in Freescale DSPs17 years ago

Hi, all. Does anyone know how to construct interrupt driven SCI? I am using SDK for DSP56F805 with C. JS ...

Hi, all. Does anyone know how to construct interrupt driven SCI? I am using SDK for DSP56F805 with C. JS


AW: DSP56F807 interrupts

Started by Bende Georg in Freescale DSPs16 years ago

You habe to enable the interrupt(s) when entering one interrupt which is interruptable. Georg Bende Softwareentwickler ...

You habe to enable the interrupt(s) when entering one interrupt which is interruptable. Georg Bende Softwareentwickler Abteilung Elektronik Dr. Fritz Faulhaber GmbH & Co KG Daimlerstr. 23 71101 Sch?naich Tel: +49 7031 638294 >