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SPI software

Hi All, i am developing SPI interface for DSC 56F805 using CodeWarrior IDE and Processor Expert. I am planning to use "SW_SPI" bean and use the methods "Send_Char", "Recv_Ch...

embedded SDK download   [2 Articles]

Hi Guys, i am new to dsp 56f805 microcontroller programming. I have installed CodeWarrior for DSC56800/E. Please suggest me whether to use Processor Expert or Freescale's em...

R: watch dog on 56f807

The given informations are not sufficient to find the problem. Anyway, in general, I can suggest you to be careful with variables shared from interrupts and the other code. When...

Using C-declared Variables in Assembly Code   [2 Articles]

Hi, I'm currently working on a project on the 56F8013 DSP. I have implemented all my codes in C to make code sharing and maintenance easier. However, I would like to use...

Using flash program memory for non-volatile storage in 56/F800E family   [2 Articles]

Hi all, If possible, I would like to get some help with the following issue: I'm using the DEMO56F8014 EVM board, which is shipped with an 56F8014 DSC, CodeWarrior 5.6 and Proc...

Re: DSP56F805 Synchronous sampling twice per PWM period

Hi! Interesting enough I work with similar app with the DSP 56F8013. I have a very similar setup as you. My PWM is center aligned at 27KHz. I have had a lot of trouble using com...

56F800DEMO problem with FIR Filter

Hi, I'm Mateo We are Trying to implement a FIR Filter with a 56F800DEMO Board, outputing the signal via PWM, in audio band. The timer C2 is set for 8Khz, so the ADC is sampl...

Re: 56F803 MSCAN correct bit timings @ 50 kbps

Hello George, I recall having a problem on the 56F807 where the MSCAN module would go dead. It seemed to be directly related to EMI. I had a 100kHz square wave comming onto my...

Code for Sine PWM?

Hi all, I am new to DSP. Can any body help me to get Sine PWM code in 56F8013 DCS ...

Clock rate for 8013   [2 Articles]

Under 56F8013AVFE bean, there are two places to specify the clock frequency. One is Oscillator Frequency default at 8MHz and another is System Clock which can be set to 32MH...

Help sqrt?

Hello friends, I am using a 56F8014 and I need to do the square root of a number. I do: #include "math.h" double x=1, y=1; y = sqrt (x); And ...

Variable conversion!

Respected Gentlemen, I am using CW7.3 to program a DSP 56F8014 of Freescale. In my code i have two variables: unsigned char x=125; ...

56F8013 debug problem

Hello group, I'm having a weird problem with a 56F8013 evaluation board. The problem is that on some computers, the debugger won't work; the code can be run but execution w...

PCMaster problem   [4 Articles]

Hi all, I’m programming the 56F803 and I’m using PCMaster to see the DSP’s variables, but there's a problem: most time, the DSP doesn't transmit anything (I saw that in ...

Re: 56F807: Any Recommedations on The Vref Chips?

I'm using AD780. It's a cool little chip that does not require too many external components. BTW, where do you buy 56F807? It seems to be out of stock everywhere! ...

mscan from scratch

Hi all, I am trying to connect the CAN bus of the 56F807 to other devices that has CANopen. I just need to get some basic status and send some signals to reset these nodes. ...

counting a LOT of quadrature inputs with 56F807   [2 Articles]

Hi, I'm trying to build a board with 56F807, which can count 7 different quadrature inputs if I use quad timers and quad decoders. But I would like to have an option to count fr...

56F8013 and flash_over_jtag

Hello group, I use 56F8013 and CodeWarrior 56800/E 7.2 Flashing is from Development environment. I need to flash 56F8013 with ready .S files using simple program like “fla...

simple I/O access (non-indexed) for 568000 parts using codewarrior   [2 Articles]

OK, I have tried to get a simple answer for this, but I'll try here... I am trying to access I/O and peripherals in X: memory in C on, in this case, a 56F8014 demo board. I c...

codewarrior and 56f8xxx

Anybody know exactly how to get a linked and LOCATED listing (combination source/asm .LST)output from codewarrior for the 56F800E software ? I can get non-located outp...

Re: How to config for IOSCTL register on Processor Expert Bean for Freescale 56F

There is no special Processor Expert property for adjusting the IOSCTL register (it wouldn't be very useful). The IOSCTL register is adjusted after the reset with the val...

test_app_56F801x.S or .MCP anyone ?

In the bootloader documentation .PDF file, 56F801x it mentions a bootloader test program that checks memory and stuff, called test_app_56F801x.S and supposedly the .cmp...

How to change the Baud Rate in CodeWarior for DSP56F801 Demo Serial Bootloader?

Dear who concern I have tried to load DSP56F801F80 Serial Bootloader from CodeWarior Processor Expert Stationary Example into my developed board with DSP56F801, 80MHz. T...

Floating sine link error

I am programming my 56F805 using Metrowerks CodeWarrior. Apparently I have a problem linking with the floating point sine method in the math library. I have included the fol...

56F8013 and DSP_MEM manager   [5 Articles]

Hello group, Using 56F8013 for simple voice processing, I need include SW bean VoiceActivityDetect. It on turn needs MemoryManager bean. I have Heap size set, but calls...

calculation errors ?   [2 Articles]

Hello everyone I am working with CodeWarrior 5.0.5 for DSP56800 and I experience strange calculation errors : 1. I can't use the float library. Most of the time it...

fastest PWM clock source in 56F805   [2 Articles]

It appears that the only clock source for the PWM unit is the IPBUS, which is always 1/2 the chip operating frequency (section 11.5.2). My chip is running at 80 MHz, so I ge...

Download to flash with Codewarrior   [3 Articles]

Hello people, I am downloading my software with the debug button in codewarrior. The target is a 56F800DEMO board (56F801). Codewarrior indicates 782 bytes of code ...

PWM vs PWMMC   [2 Articles]

I'm using 56F805 to control a number of DC controllers. The DSP is hooked up to a separate H-bridge, which receives two digital signals for direction, and one PWM for curren...

Flash and RAM memories   [2 Articles]

Hi Guys: Please bear with my dumb questions. I am trying to understand how the FALSH and RAM memories are used in a DSP chip. My understanding is that the FLASH is...

1-wire and I/O switching   [2 Articles]

Hello everyone, It seems I have ran into a wall or I'm missing an EE type deal with my lack of electral engineering knowledege for an 56f805. I have programmed my DSP to...

Question regarding JTAG AND DSP 8013   [3 Articles]

Hello, all   I am currently developing a temperature control using 56F8013, and i have a problem. i have programed all IOs that are not being used a...

Re: 56F8013 software for motor control

Apparently, you have to submit a form: "Submit this form to request permission to download this item. The download is free but does require that you register with us and...

ADC DSP56F801

hello I trying to get signals trought 56F801 ADC in demo board, I need to take 128 samples, and It´s until 30 samples, after that the ADC don´t take samples. can...

Re: assembly language for mc56f8013   [2 Articles]

802 is based on 56800 core and 56F8013 is based on 56800E core ( enhanced core). So some MOVE instructions are different between two cores. 56800 is pure 16bit core. But 5...

New Member's Hello --   [3 Articles]

Hello Group -- I am an experienced embedded controller developer who has been using the 68HC11, 68332, and 68HC08/05 family devices. I'm looking for more up-to-date con...

#pragma interrupt error   [4 Articles]

Hi! I've urgent problem with "#pragma interrupt" directive compilation. Although compiled function uses Y0 register compiler don't save it. Can anyone explain this? And ca...

GUI Version 56800E Flash Programmer - looking for 56F807 configuration file

Hello, I have sucessfully tested GUI Vesion 56800E Flash Programmer.exe on a 56F8365 based board. I also need to program 56F807 and I can't find the configuration f...

new member   [3 Articles]

Hello all, my name is edriano, i am an electronic engineer and i am starting to work with these DSP 56F8013, i am used to work with codewarrior for microcontrolers, but wo...

flash based memory

I'm using a 56f803. I am wondering is there a certain range I can go to in debug mode to see if I am correctly puting words into flash memory space? It is not a special fe...