56303 | 563xx | 5680 | 56805 | 5680x | 56F80 | 56F800DEMO | 56F805 | 56f807 | 56F830 | ADC | Bootloader | Codec | CodeWarrior | CW5 | CW6 | Debugger | DSP56303 | DSP56303EVM | DSP563xx | DSP5680 | DSP56800 | DSP56807 | DSP56858 | DSP56858EVM | DSP56F803 | DSP56F805 | DSP56F807 | DSP56F80x | DSP56F826 | DSP56F827 | DSP56F8xx | EVM | FFT | Flash_over_jtag | GPIO | Interrupt | Interrupts | JTAG | LCD | Linker | MCF5307 | Metrowerks | Modulus | MSCAN | PCMaster | PWM | Quad | Rif | RTOS | SDK | SPI

New version of my DSP synth

Dear all, A new version is up, along with a couple of demos... LFO is now routable to all three oscillators and I've made a couple of minor changes to the filt...

Application brief BR1544/D   [3 Articles]

Hi all, In the motorola app. brief to design a class D amplifier, the author states that to work out the PWM value register, the following formula applies: ...

Problems with mailing list

Dear list admin, I've had email bounce back from two people saying;- This is an automatically generated Delivery Status Notification. Unable to deliver m...

Re: Re: Fixed point math!

Bruno, > > I try to use fixed point math function for multiplying and > dividing > > numbers. > > So I tried to verify by hand the results and they don't mat...

Re: Evaluation boards UK availability

Tim, >I'm a newbie here and interested in getting hold of a Motorola DSP evaluation board to play with. >They seem pretty hard to get hold of and from the Moto...

RE: RE: #pragma interrupt / modulus (%) affects int errupts?

Hi William, I think, there is a slip of your keyboard. It must be: In the DSP56800 family: JSR pushes PC & SR on the stack. RTS pops SR & PC from the stac...

56803 PWM duty cycle sweep speed   [4 Articles]

Hi We are presently trying to use the DSP56F803 PWM (channel 4) as a simple independent PWM output. We are sweeping the output duty cycle from 0% to 100% and t...

modulus (%) affects interrupts?   [20 Articles]

Hi Can anyone imagine a way that a modulus operator (%) in the main loop could slow down an ISR? I'm stumped. There's a lot of "div"s in the library functio...

RE: [Bulk E-Mail] RE: RE: modulus (%) affects inte rrupts?

If you use up all available processing power, which can happen very quickly if you use frequent library calls, strange things often happen in your code. ...

Re: large buffer   [4 Articles]

Hello, I only know about the 563xx series, but with those parts you can't access a modular buffer larger than 32768 because of the restricted range of the poin...

PWM module initialization   [2 Articles]

Hello at all, maybe someone can help me: I have some problems with the PWM initialization (I'm not sure at 100%: sometime my IGBT is exploded during the power-on ...

RE: Increase resolution for a high frequency PWM on DSP56803

RE: [motoroladsp] Increase resolution for a high frequency PWM on DSP56803 Section 11.5.2 states that the PWM peripheral runs off the bus clock which is at 40 ...

RE: Unexpected compiler result for maths on a long data type

Hi Dave Is it possible that you have mis-matched declarations? Once I had somewhat similar behavior because I had defined a variable as unsigned long in one fi...