Clarification of errata for Motorola DSP56858

Started by ahchewt in Freescale DSPs16 years ago

Some clarification of the errata for the Motorola DSP56858 is presented below. The Section titled "Chip Revision B Errata...

Some clarification of the errata for the Motorola DSP56858 is presented below. The Section titled "Chip Revision B Errata Information" makes the following statement: The following errata items apply only to Revision A1 DSP56858 devices. These parts are either m


unexpected interrupt, dsp56858

Started by cwolfatwork in Freescale DSPs16 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


Examples needed for DSP56858

Started by Anonymous in Freescale DSPs14 years ago 5 replies

Hi, I was wondering if anyone knows where I can obtain some filtering examples for DSP56858. I have noticed that there are a...

Hi, I was wondering if anyone knows where I can obtain some filtering examples for DSP56858. I have noticed that there are a few threads about it, however the links provided in them lead to motorola's website. As we all know, motorola is now freescale and any links to motorola's website


CW 6 for DSP56858

Started by Kenneth Ciszewski in Freescale DSPs14 years ago 1 reply

I have been working with Metrowerks Codewarrior for MC9S12NE64 recently, and discovered a ".map" file (monitor.map, in this case),...

I have been working with Metrowerks Codewarrior for MC9S12NE64 recently, and discovered a ".map" file (monitor.map, in this case), that shows the dependency of modules (how they are nested or called).   Does CW 6 for DSP56858 have any such feature?  One of my big proble


Crystal Oscillator

Started by Hardeep in Freescale DSPs13 years ago 2 replies

Hi, I am working with the DSP56858. In the CPU bean for my project, I can select a value of crystal from 2MHz to 4MHz. Where in the...

Hi, I am working with the DSP56858. In the CPU bean for my project, I can select a value of crystal from 2MHz to 4MHz. Where in the program is this crystal value being used? Is it being saved as a global variable? If so, in which file would it be? Thanks. Hardeep


embedded OS for 56858

Started by mxlorenzo in Freescale DSPs15 years ago

Hi All, is there an tiny OS that could easily be ported to dsp56858 ? Ucos-11 is around $4k to embed into product. the product is...

Hi All, is there an tiny OS that could easily be ported to dsp56858 ? Ucos-11 is around $4k to embed into product. the product is a low budget one, so any pointers to free rtos would be highly appreciated. Thanks.. *lorenzo*


Different value from same register?

Started by Hardeep in Freescale DSPs14 years ago 1 reply

Hi, I am currently working with ESSI on the DSP56858. When I break in my program and view the Status register (by looking at the...

Hi, I am currently working with ESSI on the DSP56858. When I break in my program and view the Status register (by looking at the Registers in CodeWarrior), it appears that I am getting a different value from when I break after copying the value of the Status register into a variable. Does anyone know why I am receiving two different results from


Disabling EOnCE

Started by Hardeep in Freescale DSPs13 years ago 1 reply

Hi, I am using the DSP56858. Is there a way to turn off the EOnCE module once the board has been programmed? The reason I am asking this is...

Hi, I am using the DSP56858. Is there a way to turn off the EOnCE module once the board has been programmed? The reason I am asking this is to determine whether and/or how much current is being consumed with it on. I have created a project in which I put the DSP into Wait mode (wait for interrupt) with no interrupts enabled (other than the core interrupts that may occur) so that I can...


help related to DSP56858

Started by mxlorenzo in Freescale DSPs15 years ago

Hello ! I'm new to the world of DSP and my new work assignment is to implement voip codecs and other voip components like echo...

Hello ! I'm new to the world of DSP and my new work assignment is to implement voip codecs and other voip components like echo cancellers, voice activity detection etc. I'm presently reading 56858 user manual (600 pages!) and would appreciate if you can help me cl


DSP56858-VoIP

Started by dsp_devil in Freescale DSPs15 years ago 3 replies

I just bought a Motorola 56858 EVM and along with it came the Codewarrior software. I'm trying to implement a VoIP system. However, ...

I just bought a Motorola 56858 EVM and along with it came the Codewarrior software. I'm trying to implement a VoIP system. However, i have not had any prior experience with either the hardware or software. Can anyone give some advice as to a good place to start on such a project. Are


Code Warrior

Started by cwolfatwork in Freescale DSPs16 years ago 2 replies

I'm using Code Warrior, now, on a dsp56852, and, soon, on a dsp56858. So far all of my experience is on the 852, and it's not been...

I'm using Code Warrior, now, on a dsp56852, and, soon, on a dsp56858. So far all of my experience is on the 852, and it's not been a happy experience. The debugger is excruciateingly slow, and the compiler has to be checked all the time to see what code it's generating. So -- does an


Deactivating Debugger

Started by hardeepgida in Freescale DSPs14 years ago 3 replies

Hi, I am using the DSP56858, which has no internal flash. It is using JTAG to communicate/program the board. However, I...

Hi, I am using the DSP56858, which has no internal flash. It is using JTAG to communicate/program the board. However, I need to unplug the JTAG after it has loaded my program into program RAM as I would like to do some current measurements. Everytime I unplug the JTA


Download to 56858 over JTAG without Codewarrior

Started by Alf Katz in Freescale DSPs13 years ago

Hi, I'm looking for a way to download a proprietary bootloader to the DSP56858 over JTAG in a production environment without using ...

Hi, I'm looking for a way to download a proprietary bootloader to the DSP56858 over JTAG in a production environment without using Codewarrior. We use Codewarrior for development, and it's a great tool for that purpose. However, a command line utility that can form part of an automated firmware setup sequence would be more manageable in our productio


ESSI Clock and Chip Select

Started by hardeepgida in Freescale DSPs14 years ago 2 replies

Hi, I am a "newbie" using the ESSI on the DSP56858(programmed by Codewarrior + Processor Expert). In the manual it says...

Hi, I am a "newbie" using the ESSI on the DSP56858(programmed by Codewarrior + Processor Expert). In the manual it says that the serial clock on the ESSI is continous (which i'm assuming means that it is on at all times). However, what I would like it to do


Inserting some delay

Started by Hardeep in Freescale DSPs14 years ago 1 reply

Hi, I am working with the Time of Day module in the DSP56858. This may be a real newbie question, but i'll explain the problem i'm...

Hi, I am working with the Time of Day module in the DSP56858. This may be a real newbie question, but i'll explain the problem i'm having...and I suppose it's more of a programming problem. In my mock program I set the current time, start the time to run and let the program spit out the time(as it progresses). When I use the debugger to step through


Slight dilemma

Started by shockdesignau in Freescale DSPs15 years ago 6 replies

Hi, Just trying to write an assembler function for the DSP56858, based on their example code on the SDK. Now, the...

Hi, Just trying to write an assembler function for the DSP56858, based on their example code on the SDK. Now, the prototype for it is something like long int myfunction(long int a, short int b, short int c) (all signed) and i was wondering with codewa


Recording real time message on Flash

Started by fgholami in Freescale DSPs15 years ago

I am trying to record a real time voice message on serial flash and play it back.I am using read() and write() commands from SDK on ...

I am trying to record a real time voice message on serial flash and play it back.I am using read() and write() commands from SDK on DSP56858 Evaluation board. I am not successful to do so.If you have done simiar applications please let me know. Thanks,


DSP56858, CodeWarrior, Debug break problem

Started by inneralf in Freescale DSPs15 years ago

Hi, I've pretty much copied the JTAG interface from the motorola EVM for the DSP858 onto my own board. Using V6.1.1 of CodeWarrior...

Hi, I've pretty much copied the JTAG interface from the motorola EVM for the DSP858 onto my own board. Using V6.1.1 of CodeWarrior I can download, run, single step, and kill progams no problem, but I can't break. Inserting a breakpoint in a small program that just increm


When I set a breakpoint...

Started by Hardeep in Freescale DSPs14 years ago

Hi, I am using the DSP56858 with CW v.7 (and processor expert). When I set a breakpoint in my program, does the processor stop running...

Hi, I am using the DSP56858 with CW v.7 (and processor expert). When I set a breakpoint in my program, does the processor stop running as well? Do the perpherials stop running? I am a bit confused about the results that I am obtaining when I am stepping through my program. I am using the ESSI with DMA. I have a chunk of memory that stores the


Codewarrior tools for DSP56858 and others

Started by Kenneth Ciszewski in Freescale DSPs15 years ago

This is a general question:  how do you feel about the quality/ease of use of the Codewarrior tools and the SDK?  How has it worked...

This is a general question:  how do you feel about the quality/ease of use of the Codewarrior tools and the SDK?  How has it worked to meet the stated goals of getting a prototype up and running quickly in C, then minimizing it for production use?