New MC56F8323 user

Started by emespina in Freescale DSPs15 years ago

Hello! I have just acquired my 56F83x Demo Board. Does anyone have some assembly codes for system initializations and ...

Hello! I have just acquired my 56F83x Demo Board. Does anyone have some assembly codes for system initializations and configuring the ADC and PWM Modules? This will certainly help jumpstart my application development. Thanks in advance!


Fw: Clock Calibration / Reading Flash - ALLOW ZIP

Started by Mariano Filippa in Freescale DSPs16 years ago 1 reply

Here is how I did it. If you don't have an oscilloscope, try to get one. Without one, it would be impossible. Use the project...

Here is how I did it. If you don't have an oscilloscope, try to get one. Without one, it would be impossible. Use the project I've included. Take a look at main. There are two tests: one sets a PWM output. You should be able to measure the frequency and adjust the oscillator u


sync PWMs A&B

Started by bergy50us in Freescale DSPs17 years ago

Does anyone know how to sync the PWM's A & B in an '807? I have critical code running on an IRQ from each and I'd like to have ...

Does anyone know how to sync the PWM's A & B in an '807? I have critical code running on an IRQ from each and I'd like to have them occur out-of-phase. I don't see any way to easily do this.


AN1927

Started by Maria in Freescale DSPs16 years ago 1 reply

Hi all! Help me, please Where can I find application AN1927 "DSP56F80x MC PWM Module in Motor Control Applications" pdf format? ...

Hi all! Help me, please Where can I find application AN1927 "DSP56F80x MC PWM Module in Motor Control Applications" pdf format? Thanks. Maria


CUT_AWAY

Started by Mauricio Zambrano in Freescale DSPs14 years ago

Hi, guys =20 I=92m working with DPS56F8323 Demo Board but the pin out voltage is less th= at 3.3v. For instance when I use the TIMER/PWM...

Hi, guys =20 I=92m working with DPS56F8323 Demo Board but the pin out voltage is less th= at 3.3v. For instance when I use the TIMER/PWM port as Out toward LCD the Data pines, RS,RW and ENABLE pins; its voltage is 3.3 on each one. But into Manual Guide there is something that unknown called CUT_AWAY. Some one know how work this? =20 Thanks in advance =20 Mauricio Zambrano ...


ADC question

Started by david wiernicki in Freescale DSPs16 years ago

Hi. I'm new. :P I'm using a DSP56f805 to do a 6-axis motor controller for a motion platform. I grab analog inputs for...

Hi. I'm new. :P I'm using a DSP56f805 to do a 6-axis motor controller for a motion platform. I grab analog inputs for feedback, pulse width input from a PC for control, and PWM output to run the motors. I'm using Code warrior 5 with SDK 2.5.


Problem on use PWM as output on 56807

Started by lisong_yuan in Freescale DSPs14 years ago 3 replies

I want to configure 4 of PWMA pins as output pin. But I can not get the output. The following is my code. Please help asap. Thanks. ...

I want to configure 4 of PWMA pins as output pin. But I can not get the output. The following is my code. Please help asap. Thanks. void initPwmAReg(void) { setPwmAControl(0x00001); // 0x0001 PWMEN Enable setPwmAOutputControl(0x8F0F); setPwmAConfigReg(0x000E ); setPwmAModulo(200); setPwmA_ENHA(); setPwmAChann


Register mapping at 56F807

Started by michaelknop in Freescale DSPs17 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


AW: Re: Measuring PWM with DSP56F80x

Started by Bende Georg in Freescale DSPs16 years ago

Thanks for your comments, at least I'm now sure that it's not my English that isn't enough to understand the Manual. :) What I've...

Thanks for your comments, at least I'm now sure that it's not my English that isn't enough to understand the Manual. :) What I've discovered, that I can't use the same input pin once inverted and once with true polarity. The manual states that "14.7.2.7 Input Polarity Select (IP


audio speaker system code, need help

Started by dperlm22 in Freescale DSPs16 years ago 1 reply

I am using trying to write code for an audio stereo system that samples using the onboard 12 bit a/d and then ouputs three different...

I am using trying to write code for an audio stereo system that samples using the onboard 12 bit a/d and then ouputs three different signals to three different pwm's each delayed with respect to each other by a few milliseconds. I am using the 56F8300 Demonstration board which has a


help reqd for signal generation usgin 56f827

Started by Nitin Madhukar Yewale in Freescale DSPs17 years ago

Hi to All, I am developing an application using 56f827 MCU. I want to generate signals with 1/10 to 1/160 second, spacing...

Hi to All, I am developing an application using 56f827 MCU. I want to generate signals with 1/10 to 1/160 second, spacing between signals varying from 25 uS to 1.5 mS. How can i generate this signals ? [using PWM or anything else TOD] Thanks and Regards, Nit


Errors-DSP56F807EVM

Started by seto_dsp56 in Freescale DSPs17 years ago 1 reply

Hi, While building any example project (adc, pwm etc in DSP56F807EVM) I m getting following errors. ...

Hi, While building any example project (adc, pwm etc in DSP56F807EVM) I m getting following errors. ========================================= Can't write link map "". An unknown error occurred when linking target "tools" for projec


Generating square wave fixed frequencies on 56F8xx

Started by vbcam in Freescale DSPs12 years ago

Hello I am looking for any help on how to generated multiple acurate and fixed square wave frequencies ( over 12 at once ) on the range of 4...

Hello I am looking for any help on how to generated multiple acurate and fixed square wave frequencies ( over 12 at once ) on the range of 4 to 9 Khz within the 56F8xx or 56F8xxxx DSC. I would like not to use the PWM or Timers but loops and software only and getting the outputs on GPIO A and B. Any idea? Thanks


56f807 + SDK + ucos

Started by max_mont in Freescale DSPs16 years ago

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

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 interrupts are disabled, including the OS timer (D0), excluding the PWM reload interrupt. This problem appears,


I need help with Hardware DSP56F8323

Started by omarjaviert in Freescale DSPs13 years ago

Hi I have a problem. I did design a hardware of 36 x 36 mm with the DSP56F8323 and your performance is very good, this debuging and...

Hi I have a problem. I did design a hardware of 36 x 36 mm with the DSP56F8323 and your performance is very good, this debuging and programing. The modules PWM, GPIO and SPI is corect, but the voltage VLO, VMID and VHIGH of the DSP is the same. Then the ADC don't function correctly. The size is very importance, then I don't can do my design more big. I hope answer. Thanks.


How to use Super Fast ISR for nested interrupts

Started by Kohei Matsumaru in Freescale DSPs17 years ago 1 reply

Hi, I don't understand how to implement faster nestable interrupts routine using embedded SDK on DSP56F803. IRQA and IRQB are...

Hi, I don't understand how to implement faster nestable interrupts routine using embedded SDK on DSP56F803. IRQA and IRQB are used for communication with host processor. Also, PWM interrputs are used. First, I used archInstallISR library for IRQA and IRQB. But the


56F8300DSK (Demo board) PWM problem.

Started by mickmonx in Freescale DSPs15 years ago 4 replies

Hello, I'm new to this forum, I recently obtained a 56F8300DSK Demo board (with a 56F8323 on board) and I have been struggling...

Hello, I'm new to this forum, I recently obtained a 56F8300DSK Demo board (with a 56F8323 on board) and I have been struggling to get it up and running. I have managed to write a simple program that toggles an LED (I have also achieved this using the Processor Expert fun


Ynt: Can PWM output be used as Output?

Started by Han Cicimen in Freescale DSPs18 years ago

Thanks for the help. I have SDK version 2.4. I think I have to order 2.4.1. 1. Can we use fault and current sense inputs as...

Thanks for the help. I have SDK version 2.4. I think I have to order 2.4.1. 1. Can we use fault and current sense inputs as normal input? 2. As far as I know we can use quadrature decoder inputs as normal inputs. 3. Can we use quad timer inputs as normal inputs?


Missing ports/pins on Demo Brd (56F8300DEMO)

Started by Nicholas Singh in Freescale DSPs16 years ago 1 reply

Hello, Seems as though this board is missing the PCB-mount DB9 serial port as well as what appears to be some RS-232 logic...

Hello, Seems as though this board is missing the PCB-mount DB9 serial port as well as what appears to be some RS-232 logic level shifting IC(s) and analog parts. Also, the Timer/PWM, ADC and GPIO/SERIAL set of connectors do not have pins. I'm specifically interest


RE: DSP56F807: Synchronization of on chip ADC to PW M

Started by Johnson, Jerry in Freescale DSPs16 years ago

RE: [motoroladsp] DSP56F807: Synchronization of on chip ADC to PWM I put the following at the end of my ISR: ...

RE: [motoroladsp] DSP56F807: Synchronization of on chip ADC to PWM I put the following at the end of my ISR:                 bfse