DSP56303: max clock speed

Started by GuillaumeDesj in Freescale DSPs16 years ago 1 reply

The DSP56303 user's manual says that ... "The DSP56303 offers 100 million instructions per second (MIPS) performance using an...

The DSP56303 user's manual says that ... "The DSP56303 offers 100 million instructions per second (MIPS) performance using an internal 100 MHz" However if you look at the datasheet (paragraph 2.6.3), the value listed for maximum frequency of the VCO with PLL Enabled


DSP56303 gone wild (PLL configuration)

Started by GuillaumeDesj in Freescale DSPs16 years ago 1 reply

Hi, I recently noticed that when writing the value $745820 to the PCTL (PLL config register), the DSP56303 goes completely...

Hi, I recently noticed that when writing the value $745820 to the PCTL (PLL config register), the DSP56303 goes completely nuts. After loading and executing the program, all of the memory (P/X/Y) contains the value $000089 ! This doesn't happen when i load "s


Problems accessing port A in DSP56303

Started by Hernan Dario Herrera in Freescale DSPs15 years ago 1 reply

Hi, I?m working with the DSP56303 and I?m having trouble when I send data to the port A. If I send, for example, $D12F, and I...

Hi, I?m working with the DSP56303 and I?m having trouble when I send data to the port A. If I send, for example, $D12F, and I receive $D21F, or $C52D and I get $C61E. In the same way, the address lines don?t match the value I have set up, for example: If I want to write


Triple timer module on the DSP56303

Started by GuillaumeDesj in Freescale DSPs16 years ago 2 replies

For some reason, I am having some problems configuring the timer 0 on the Motorola DSP56303 chipset. I have configured the...

For some reason, I am having some problems configuring the timer 0 on the Motorola DSP56303 chipset. I have configured the TLR0, TCPR0, TCSR0 (mode 0, TRM enabled and TIO0 as an output)... when i enable the timer however (by setting the TE bit to 1), the TCR0 register does not


Indirect addressing with offset register on the DSP56303

Started by GuillaumeDesj in Freescale DSPs16 years ago 1 reply

Hi, I would like to use indirect addressing using the offset register on the DSP56303 chipset. However, the simulator...

Hi, I would like to use indirect addressing using the offset register on the DSP56303 chipset. However, the simulator tells me that such an instruction takes 25 clock cycles to execute ! I do not see any reason for it being this high, so i was wondering if this mi


Initialisation of Host port and SCI port for DSP56303

Started by favresse_ced in Freescale DSPs17 years ago 1 reply

Hi, I am looking for example of code to initialize the Host Port and the SCI Port of my DSP56303. Thanks for your help. C?dric. ...

Hi, I am looking for example of code to initialize the Host Port and the SCI Port of my DSP56303. Thanks for your help. C?dric.


can we use ADC of 70-100MHz with dsp56303

Started by gunala sunitha in Freescale DSPs14 years ago

hi, i want to know, is it possible to use ADC of around 70-100MHz sampling frequency with the dsp 56303 by using the digital down...

hi, i want to know, is it possible to use ADC of around 70-100MHz sampling frequency with the dsp 56303 by using the digital down converter in between the ADC and the DSP.  since the ADC of such a sampling frequency come with the parallel output only and the dsp56303 will not sup


Creating hex for download

Started by ukkiwikid in Freescale DSPs16 years ago

Hi, I am trying to create a file for booting a DSP56303 over the SCI port. I was wondering if there were any conversion...

Hi, I am trying to create a file for booting a DSP56303 over the SCI port. I was wondering if there were any conversion utilities around that can convert either srec or hex to the appropriate format. Cheers, Scott.


PC - DSP56303EVM interface

Started by GuillaumeDesj in Freescale DSPs16 years ago

Hi, I was recently looking into setting up a serial interface between a PC and the EVM board, in order to transfer data...

Hi, I was recently looking into setting up a serial interface between a PC and the EVM board, in order to transfer data generated by a PC application to the DSP. However, the DSP56303 datasheet tells me that the minimum clock speed that the SCI interface can handl


SDRAM support for DSP563xx

Started by jesusvillenaroberto in Freescale DSPs17 years ago

Hi all, We are begining a new project with eight DSP56366 as a big version of an existing one with a DSP56303. We need to use...

Hi all, We are begining a new project with eight DSP56366 as a big version of an existing one with a DSP56303. We need to use external DRAM in each DSP. In the first project, the DSP used EDO DRAM because it was available and the DSP supported this memory directly. However now


AW: DSP56303: max clock speed

Started by Bende Georg in Freescale DSPs16 years ago 1 reply

The processor executes one instruction per 2 clock cycles; this makes with 200 MHz 100 MIPS. So both manuals are correct. Best...

The processor executes one instruction per 2 clock cycles; this makes with 200 MHz 100 MIPS. So both manuals are correct. Best regards, Georg Bende Softwareentwickler Abteilung Elektronik Dr. Fritz Faulhaber GmbH & Co KG Daimlerstr. 23 71101 Sch?nai


dsp56303 flash boot

Started by Anonymous in Freescale DSPs15 years ago 1 reply

hi. I'm trying to boot the dsp56303EVM but I don't understand why in the evm manual says that the Flash memory is between $010000...

hi. I'm trying to boot the dsp56303EVM but I don't understand why in the evm manual says that the Flash memory is between $010000 and $01ffff and in the dsp manual says that the flash bootstrap begins at $D00000, so how does it execute the stand-alone code, if the code is in anothe m


how to calculate the maximum rate for serial ports of dsp56002/56303

Started by gunala_sunitha in Freescale DSPs14 years ago

hi-need a small help regarding the calculation of maximum rate that a dsp 56002/56303 can read through the ssiport of...

hi-need a small help regarding the calculation of maximum rate that a dsp 56002/56303 can read through the ssiport of dsp56002.and essi of dsp56303. as i want to interface the A/D chip to these devices.


EVM debugger

Started by Hernan Dario Herrera in Freescale DSPs15 years ago

hi all.   I develop a small development system (D.S.) for the DSP56303PV100 and I want to know if there is any way to...

hi all.   I develop a small development system (D.S.) for the DSP56303PV100 and I want to know if there is any way to download a program to the D.S. through the DSP56303EVM debugger. We tried attaching the DSP56303 JTAG pins in the D.S. to the Command converter pins in


I still have the same problem with the Port A DSP56303

Started by Hernan Dario Herrera in Freescale DSPs15 years ago 4 replies

Hi again   Thanks to you who answer me the last time.   But I still have the same problem. When I send data to the...

Hi again   Thanks to you who answer me the last time.   But I still have the same problem. When I send data to the port A I always get a wrong value. I already set up the AAR 0 to 3 and the BCG registers. But it never works fine.  


Some questions about the old Motorola's dsp56k-gcc compiler and dsp563xx family

Started by Avelino Herrera in Freescale DSPs14 years ago 1 reply

Hi, all. I am a newbie in the Motorola's DSP world and I have modified the well known dsp56k-gcc port of the gcc GNU compiler (made by ...

Hi, all. I am a newbie in the Motorola's DSP world and I have modified the well known dsp56k-gcc port of the gcc GNU compiler (made by Motorola) to use it in actual Linux boxes. I have a dsp56303 but the dsp56k-gcc generates only dsp56000 code - What are the essential differences between dsp56000 and dsp563xx family? - Is the dsp563xx family compatib


JTAG Parallel Port Command Converter

Started by Hernan Dario Herrera in Freescale DSPs15 years ago 3 replies

Hi all.   I have a three DSP56303 system interconected by a JTAG daisy chain. Also, I have attached to the first DSP the...

Hi all.   I have a three DSP56303 system interconected by a JTAG daisy chain. Also, I have attached to the first DSP the parallel port command converter (the one with two 74xx244), that translates voltage from 5V TTL in the paralell port of a host co


Memory switch in DSP56303

Started by pal_ingenieria in Freescale DSPs9 years ago 2 replies

Dear folks, As you know, after a RESET, MS bit in the OMR is 0 by default, so the memory configuration consist of the following: 4K of program...

Dear folks, As you know, after a RESET, MS bit in the OMR is 0 by default, so the memory configuration consist of the following: 4K of program memory (0x0-0xFFF), 2K of X data and 2K of Y data. After RESET, I load the program memory by using the bootloader as usual. After that, my program sets the MS bit (bit 7) in the OMR in order to change the memory configuration to 2K of program memory (0x0...