56F807 DSP failures

Started by Bende Georg in Freescale DSPs15 years ago 4 replies

Hello all, Recently we have started some test production, and on about 1% of the units claimed to be defective by our test...

Hello all, Recently we have started some test production, and on about 1% of the units claimed to be defective by our test software. I took a closer look on these units and I have noticed a huge offset on 1 or 2 of the ADC channels. At 0V level it showed the same value as the


pc master crash

Started by Anonymous in Freescale DSPs15 years ago 1 reply

hi, I'm using PC Master (by Motorola) on windows 98 to communicate with a DSP 56F807. When I change panel in PCMaster from...

hi, I'm using PC Master (by Motorola) on windows 98 to communicate with a DSP 56F807. When I change panel in PCMaster from the tree, the programm's crashing and the serial port leaves opened. So I need to restart PC to reopen the PCMaster Project. When I'm using a


JTAG loses connection with target and flash problem.

Started by embeddeddes in Freescale DSPs15 years ago 1 reply

Hi everyone, This is a two part question but I believe they may be related. I have a board designed around the 56F807...

Hi everyone, This is a two part question but I believe they may be related. I have a board designed around the 56F807 using the evm as a reference. The board has the same external memory configuration as the evm and we program it using Codewarrior IDE 5.1.1 with


Register mapping at 56F807

Started by michaelknop in Freescale DSPs16 years ago 2 replies

Hello, I'm looking for a method to map some peripheral registers to the last 64 locations in memory. Right now I'm using...

Hello, I'm looking for a method to map some peripheral registers to the last 64 locations in memory. Right now I'm using statements like bfset #PWM_LOAD_OK_BIT_ON_MASK,X:PWMA_PMCTL_ADDR where #define PWMA_PMCTL_ADDR 0x1200 /*PWM Control Register*/ and #define


C COMPILERS FOR 16 BIT DSP 56F807

Started by somanchi srinivas in Freescale DSPs16 years ago 1 reply

hi, I would like to know if there are any compilers avaiable for C ,as we are trying to program a 16-bit DSP56F807 ...

hi, I would like to know if there are any compilers avaiable for C ,as we are trying to program a 16-bit DSP56F807 microprocessor any one can suggest any compiler , the compiler can be free of cost or we are even ready to buy it. I hope some one will repond back. thanks


Re: Codewarrior does not erase boot flash 56F807

Started by MW Ron in Freescale DSPs16 years ago

Wim de Haan wrote: > Thank you for your mail and explanation. > However what you describe is a (usefull) work-around, but the...

Wim de Haan wrote: > Thank you for your mail and explanation. > However what you describe is a (usefull) work-around, but the bug is > present. > The program "flash_over_jtag.exe" (from the SDK) erases and programs the > addresses P:0x0000 to P:0


motor control

Started by micrologix_embedded in Freescale DSPs14 years ago

we are facing problem while using PE in algorithm for bldc motor with Hall sensor output .where will i get the correct ...

we are facing problem while using PE in algorithm for bldc motor with Hall sensor output .where will i get the correct library functons for 56f807 evm board and 56f801 processor?. plz tell me that how will use the 56f807evm board connections) note :quadatu


CodeWarrior for DSP 5.1 Upgrade

Started by Litinas, Terry in Freescale DSPs16 years ago 12 replies

Hi, I am currently using CodeWarrior for DSP 5.05 with SDK 2.5 for 56F807 development. I would like to upgrade to 5.1 and...

Hi, I am currently using CodeWarrior for DSP 5.05 with SDK 2.5 for 56F807 development. I would like to upgrade to 5.1 and wonder what pitfalls there might be. Are there any changes required to my current 5.05 projects or code? Is SDK 2.5 compatible with CodeWarrior 5.1 or is i


IRQA problem

Started by max_mont in Freescale DSPs15 years ago 1 reply

Hi, On my board with 56F807, a signal at 2 Hz comes on IRQA pin which must provocate an ISR every 500 ms. When I debug, the...

Hi, On my board with 56F807, a signal at 2 Hz comes on IRQA pin which must provocate an ISR every 500 ms. When I debug, the program goes in ISRA only one time and the others ISR are disable (SCI, timer, ...) I don't know what is the problem. I set IRQA on rising ed


SCI baud rate/9 bit protocol

Started by aaronedsinger in Freescale DSPs16 years ago

Hello. I'm trying to use the SCI1 on my 56F807 to do a simple 9-bit protocol address-wakeup communication. However, I seem to be...

Hello. I'm trying to use the SCI1 on my 56F807 to do a simple 9-bit protocol address-wakeup communication. However, I seem to be having problems with getting the baud rate correct. With the following code: ---------------- SciConfig.SciCntl = SCI_CNTL_WORD_9BIT | SCI_CNTL_PARI


breakpoint warning

Started by max_mont in Freescale DSPs15 years ago 1 reply

Hi everybody, I'm developing a software for DSP 56F807 without external RAM. I'm trying to debug in RAM. The code can be loaded...

Hi everybody, I'm developing a software for DSP 56F807 without external RAM. I'm trying to debug in RAM. The code can be loaded but a message appears "Warning Breakpoint" and I can't run the program. Have you got an idea ??? Many thanks in advance


Hardware develoment tools for DSP 56F80X serie

Started by Anonymous in Freescale DSPs17 years ago 1 reply

Hi, We paln to use 56F807 and 56F803 in our new designs. We ordered EVM56F807 to became familiar with DSP and Codewarior. Both...

Hi, We paln to use 56F807 and 56F803 in our new designs. We ordered EVM56F807 to became familiar with DSP and Codewarior. Both of them look like perfect. My only problem is program download speed to the falsh. I the program is big the download time is more than 1 minutes.


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


DSP hang up with EMC disturbance

Started by mvigano in Freescale DSPs16 years ago 4 replies

We use 56F807 with internal watchdog (COP) enabled but we experienced a stop of the DSP when we apply EMC disturbance like fast...

We use 56F807 with internal watchdog (COP) enabled but we experienced a stop of the DSP when we apply EMC disturbance like fast transient or elettrostatic discharge. Our application is an high reliability one so we cannot simply reset it with an external watchdog.


external oscillator

Started by esecece in Freescale DSPs15 years ago 2 replies

I want use an external oscillator with 56F807, to avoid problems with the internal one at low temperatures. DSP56f801-7 user's...

I want use an external oscillator with 56F807, to avoid problems with the internal one at low temperatures. DSP56f801-7 user's manual recommends to drive the xtal input and ground extal (when using external oscillator). But it says that also is possible to drive extal and left unconn


AW: 56F807 DSP failures

Started by Bende Georg in Freescale DSPs15 years ago 2 replies

Nachricht Yes, I have the same effect. The voltage is about 0,15V and I get values around 32000 in the ADC register. Seems...

Nachricht Yes, I have the same effect. The voltage is about 0,15V and I get values around 32000 in the ADC register. Seems this isn't the bevhaviou


speed measurement w/ encoder & TimerA

Started by Erik Limpaecher in Freescale DSPs16 years ago

I'm trying to get speed measurement working with the 56F807 timers, at both low speeds where there is a long time between encoder ...

I'm trying to get speed measurement working with the 56F807 timers, at both low speeds where there is a long time between encoder quadrature edges and at high speeds where very accurate measurement of pulse width is necessary. Pages 95-99 of the following designer reference manual de


Diffarence B/W Program RAM and Data RAM

Started by Suresh Kavula in Freescale DSPs15 years ago

Hi everybody, I'm developing a software for DSP 56F807. In these series of DSPs what is the specific advantage of Program RAM? What...

Hi everybody, I'm developing a software for DSP 56F807. In these series of DSPs what is the specific advantage of Program RAM? What is the difference between Program RAM and Data RAM. Many thanks in advance Kavula. Suresh Kumar.


PWM to ADC sync pulse

Started by Roelof Oelofsen in Freescale DSPs17 years ago 1 reply

Good morning, I am using the PWM on the 56f807 to send out voice band signals and the ADC to sample these signals. At the...

Good morning, I am using the PWM on the 56f807 to send out voice band signals and the ADC to sample these signals. At the moment I am sending it out at 32k samples/sec. I only want to read it at 8k samples/sec though. Is there any way that I can divide the sync pulse that come


DSP 56F807 EVM SCI sending byte.

Started by skyf...@MIT.EDU in Freescale DSPs14 years ago 1 reply

Hello.. I am start to woking with DSP EVM with flash app. I want to send more than 8 bytes at once but my teminal just showed 8...

Hello.. I am start to woking with DSP EVM with flash app. I want to send more than 8 bytes at once but my teminal just showed 8 bytes. For example if I send "abcdefghi" then, my terminal just printed out "abcdedfg". Is there any data limit for the flash app? Or is there any problem to the my code? Here's my co