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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! ...

56F807 opcodes

Hi! Does someone know where can i find the instruction´s opcodes for a motorola 56F807? Thanks Luis Togo ...

Manufacturer of 128K SRAM for 56f807?   [2 Articles]

Hi, I want to know the names of Manufacturer of 128k SRAM (44 pin 2MB 10 nS)for 56f807. The URL of GStechnology says that SRAM GS72116Tp - 10(TSOP) is not reco...

DSP56F807 and motor servo application   [4 Articles]

I am considering the '56F807 for an application to control 4 DC motors, using a position PID control loop for each motor, with encoder feedback. I would need to t...

56F807: Any Recommedations on The Vref Chips?   [2 Articles]

Hi , I read the datasheet of the 56F807. The reference voltage of the ADCs are needed. The datasheet said that it would be better to use the 3.0v reference. ...

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...

Equates for 56F807   [2 Articles]

Hi. I need the 56F807 Equates file. if someone can send it to me, I´d appreciate it.   It's the file where you find the memory addresses for every register in t...

56F807 expected life cycle   [3 Articles]

Dear Members, For evaluation purposes i would like to have (independent !) information of the expected availability of the 56F807 DSP in the future. We ha...

A/d sdk driver for 56f807 question   [2 Articles]

Hi group, I just started to explore the A/D SDK driver for the 56f807. My question is this: If I set the A/D up in loop sequential mode, the conversion complet...

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...

stepper motor control with 56f807

I am intrested in stepper motor control with 56F807. I want to generate pulses for stepper motor indexer. When I look at manuals, there are some timer options...

using SDK in 56F807   [2 Articles]

Hi, I have a few newbie questions. I am using the SDK on the 56F807 evaluation module. If I create an Flash_Application from SDK stationary, the default project wor...

56f807 + SDK + ucos

Hi, I'm developing an application on the 56f807 with SDK and ucos II. The application is running very well. But when it runs during a long time, all the interr...

56F807's SPI can't access X5043   [3 Articles]

Hi EVeryone! X5043 is Xicor's uP Supervisor with 4k bit EEprom. the interface of X5043 is SPI. But if you want to write one byte to an address of X5043. You...

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. ...

Where can I buy LQFP 56F807???

This chips seems to be out of stock everywhere. Mouser has the non-ROHS compliant version, but I'd prefer the ROHS compliant one, since it is spec'ed for higher heat tolerance, ...

Strange 56F807 SPI Control Register (SPSCR) Behavior

Hi All, I am working with the 56F807, CodeWarrior 5.1.1, and SDK 3.0 and have noticed that when writing to the COPCTL register (address $1330), the data in the...

Codewarrior does not erase boot flash 56F807   [13 Articles]

Hi, Some members have problems with erasing/programming boot flash of DSP56F807 The bug is, that Codewarrior does not erase the boot flash of DSP56F807 (adress...

56f807 clock

Good morning, Did any of you try to run the 56f80x off an 8,192MHz crystal? If so how high can one go before the DSP starts to fall out of the bus. Accordin...

breakpoint warning   [2 Articles]

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 ...

pc master crash   [2 Articles]

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 ...

IRQA problem   [2 Articles]

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 ...

mscan example

Hello. I am just getting started using the MSCAN on my 56F807 evaluation board. I haven't been able to find any sample code for this yet (mscan initialization, inte...

motor control

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 b...

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...

external oscillator   [3 Articles]

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 i...

About CAN's least Baudrate !   [2 Articles]

Hi everybody; I am using the CAN bus. To be compatible with old communication products. I need the to run the CAN at 5-100k baudrate. But with the IPBUS clock, t...

Problem with SPI in DSP 56F807.   [2 Articles]

Hi, everyone!. First of all I've gotta say that this is my first post in this interesting Motorola DSP Group, so I hope you will understand and forgive me whether I'm a...

C COMPILERS FOR 16 BIT DSP 56F807   [2 Articles]

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...

CodeWarrior for DSP 5.1 Upgrade   [9 Articles]

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. ...

recommended LQFP board pad layout for 56F807

I guess Freescale provides the mechanical package dimensions, but not the recommended board dimensions. Does anyone know where to obtain a recommended pad dimensions for 160-pin...

AN1933 timer question   [2 Articles]

The Motorola ap note AN1933 references TMRC2_CTRL (in figure 5-5) bit 6 which it calls "Count repeatedly" and suggests setting it to 0 (in order to only count once)...

PWM to ADC sync pulse   [2 Articles]

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 sam...

Sending a CAN message   [2 Articles]

Hi folks, I'm trying to set up a 56F807 to send out and receive CAN messages. I'm new to CAN (apart from having read numerous articles about it!) so I'm probably...

56F807 DSP failures   [4 Articles]

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 thes...

Register mapping at 56F807   [3 Articles]

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_...

Question about timers of 56F807   [4 Articles]

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 complet...

DSP hang up with EMC disturbance   [4 Articles]

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 disch...

timing

In the following code: _L29: ADD X:(SP-1),B ADD X:(SP-2),B MOVE X:(SP-1),Y0 ADD #$2,Y0 BFTSTH #$2,SR MOVE Y0,X:(SP-1) JCC _L29 I've been trying ...

Diffarence B/W Program RAM and Data RAM

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...