Using DSPCOMMPARALLEL

Started by Lionel Degoutte in Freescale DSPs17 years ago 2 replies

I have The evaluation board DSP56F807 EVM-1 with codewarrior 5.0. The communication between the computer and the evaluation board is...

I have The evaluation board DSP56F807 EVM-1 with codewarrior 5.0. The communication between the computer and the evaluation board is very slow when I want to run or stop the program. Moreover I can put only on breakpoint in the program. Can someone tell me if there is the same limita


access paths for different DSPs (803 vs. 807)

Started by Corey, Rick in Freescale DSPs17 years ago 2 replies

Hello I'm trying to move my code from a project for a DSP56F803 to DSP56F807. I've worked with the 803 for several months, and...

Hello I'm trying to move my code from a project for a DSP56F803 to DSP56F807. I've worked with the 803 for several months, and this is my first attempt to create a new project with SDK-56807 stationary instead of SDK-56803 stationary. When I opened the project, se


807 SCI1/GPIOD problems

Started by BJ Opp in Freescale DSPs17 years ago

I'm trying to setup SCI1 as a communications port (using the DSP56f807 EVM), but am running into difficulty with it. I have ...

I'm trying to setup SCI1 as a communications port (using the DSP56f807 EVM), but am running into difficulty with it. I have already setup SCI0 and verified it to be working so I know that i'm on the right track for sampling data. I have initialized both ports the same way, 9600 baud,


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)?


DSP56F807 interrupts

Started by rotronics2001 in Freescale DSPs17 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.


Question about timers of 56F807

Started by swaroop in Freescale DSPs17 years ago 3 replies

hi Iam working with the ADCs and DAC of a DSP56F807 EVM. I want to use two Quadrature timers for the 2 ADCs to retrieve the ...

hi Iam working with the ADCs and DAC of a DSP56F807 EVM. I want to use two Quadrature timers for the 2 ADCs to retrieve the samples through the conversion complete callback functions .....n two auxillary timers for giving the digtal signal to the DAC to two different channels t


TTCAN for DSP56F807

Started by belightednow in Freescale DSPs17 years ago

Hello, I want to use the MSCAN Module of the DSP56807 for a hart real-time application with periodic transmission of messages in a...

Hello, I want to use the MSCAN Module of the DSP56807 for a hart real-time application with periodic transmission of messages in a fix time slot. The automatic retransmission of messages produce an undesired delay in time. Therefore I want to know if it is possible to suppress


RE: DSP56F827: Condensing Strings, two 8bit cha rs into 16bits

Started by Wim de Haan in Freescale DSPs16 years ago

Hello Boaz, I had the same problem at DSP56F807 with Codewarrior. The only way for me to solve it, was to put all strings in...

Hello Boaz, I had the same problem at DSP56F807 with Codewarrior. The only way for me to solve it, was to put all strings in assembly: Assembly: global Fbatt_type Fbatt_type dcb 'Battery type',0 ; you must append the trailing 0 yourself C-code:


page erasing DFLASH ON DSP56F807

Started by Roberts Paul in Freescale DSPs17 years ago

I'm having difficulties page erasing the data flash unit. I've followed all steps for intelligent erasing on 5-15 of the...

I'm having difficulties page erasing the data flash unit. I've followed all steps for intelligent erasing on 5-15 of the User's manual. I can only mass erase with no problem, and get immediate feedback in the Metrowerks IDE's debugger. Addresses 0x2000 through 0x3fff only era


RE: DSP56F807&Codewarrior " Breakpoint Warnings"

Started by vmiramont in Freescale DSPs18 years ago 1 reply

Hello All, I am having troble with breakpoint warnings after switching from a flash configuration back to an external ram...

Hello All, I am having troble with breakpoint warnings after switching from a flash configuration back to an external ram application. The console window that used to pop up to display all my printf statements is gone and I can no longer step through my code. Does anybody know


Compressed characters for Metrowerks Codewarrior for DSP56F807

Started by Wim de Haan in Freescale DSPs17 years ago 4 replies

Hello, I'm looking for a method to store 2 characters in 1 word, because I have not enough data flash memory. Normally you...

Hello, I'm looking for a method to store 2 characters in 1 word, because I have not enough data flash memory. Normally you use: char *line1={"AaBbCc"}; // 1 character in 1 word This is possible: struct bytes { unsigned low_byte: 8;


DSP56F807 PWM Automatic Fault Clearing

Started by frankbertling in Freescale DSPs17 years ago

Dear All, In contradiction to the behaviour described in the User?s Manual (DSP56F801-7UM/D - Rev. 3.0, Chapter 11.5.8.2), we...

Dear All, In contradiction to the behaviour described in the User?s Manual (DSP56F801-7UM/D - Rev. 3.0, Chapter 11.5.8.2), we observe PWM outputs being re-enabled within a PWM cycle as soon as the Fault input (configured for automatic fault clearing) returns to zero.


Using Parallel Interface Cable with flash_over_Jtag

Started by Jean-Philippe Arbic in Freescale DSPs16 years ago 1 reply

I am curently working on a DSP56F807. I'm wondering how is it possible to directly upload my s-record in the DSP without using a...

I am curently working on a DSP56F807. I'm wondering how is it possible to directly upload my s-record in the DSP without using a EVM. I tried to use a Parallel Interface Cable as described in this document: http://e-ww


DSP56F807 application write to FLASH

Started by Bill Schintler in Freescale DSPs16 years ago 2 replies

How does an application, which resides in FLASH, write non-volatile data to data (or program) FLASH? Is this even possible? I...

How does an application, which resides in FLASH, write non-volatile data to data (or program) FLASH? Is this even possible? I am developing under CW 5.1. Thanks in advance - Bill Schintler


Need manual....

Started by sureshsureddi in Freescale DSPs17 years ago 1 reply

Hello, We are working on DSP56F807 evaluation board.As we are using evaluation board we don't have SDK support for CAN driver.I...

Hello, We are working on DSP56F807 evaluation board.As we are using evaluation board we don't have SDK support for CAN driver.I would like to write the driver for the same.I'm looking for manual which details register addresses etc.I'm looking for complete hardware user manual.


Occasional code restart.

Started by Roberto Bonacina in Freescale DSPs15 years ago 2 replies

On DSP56F807, I found a condition on which occasional code restart happens. The code in execution when the code restarting occurs is the...

On DSP56F807, I found a condition on which occasional code restart happens. The code in execution when the code restarting occurs is the following (C code and relative disassembly): // CAN Rx interrupt disabled during queue counter manipulation. periphBitClear(CANRXFIE, &ArchIO.CAN.RxIntEnableReg); P:00003471: 80F411850001 bfclr #0x1,X:0x1


CodeWarrior lastest version

Started by Oscar Jaramillo in Freescale DSPs16 years ago

Greetings. Where I can download the lastest version of CodeWarrior for DSP56F807?   Regards. Cordialmete, Oscar...

Greetings. Where I can download the lastest version of CodeWarrior for DSP56F807?   Regards. Cordialmete, Oscar Javier Tadeo Jaramillo Galeano. Nit: 98665185-4 Telefono. (+57)300-779-60-62 ?C?m


DSP56F807 - Mutual exclusion using IPL 0 masking

Started by Aaron Needles in Freescale DSPs17 years ago

Hi, I need a mutual exclusion mechanism that allows access to two global variables as an atomic unit. To prevent code within an...

Hi, I need a mutual exclusion mechanism that allows access to two global variables as an atomic unit. To prevent code within an ISR from accessing one of the variables during this short period, I would like to mask IPL 0 interrupts while I access the pair and then unmask IPL 0


Use of clock_gettime() on DSP56F807

Started by Aaron Needles in Freescale DSPs17 years ago 6 replies

Hi, I'm attempting to use the "Real Time Clock" feature in Motorola's DSP but am getting inconsistent time values returned when I...

Hi, I'm attempting to use the "Real Time Clock" feature in Motorola's DSP but am getting inconsistent time values returned when I call clock_gettime() successively. The code below was added to a project created with "Embedded SDK Stationary" and only


dsp56f807 and stdio without external ram

Started by igttom in Freescale DSPs17 years ago 3 replies

I have problem to make a printf with a project compiled for internal flash and internal ram. When I compile for external ram like...

I have problem to make a printf with a project compiled for internal flash and internal ram. When I compile for external ram like the evaluation board all is working fine. The 807 has 8k x 16 of internal Ram, so this should be enough to use a stdio function like printf or sprintf. Do