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Example using R/C type Servo connected to the quad timer port?

Does anyone have an example of using the Quad Timer to control a servo? Assembly or C or smallC, any would be great :) TIA Dan K ...

Quad Timer ,I/O   [2 Articles]

Hi I am looking for a help in Quad timers (DSp56f801) My questions are: 1. Is it that we have to declare explicitly the Quad timers pins as output p...

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...

Explain timers use in ADC and SPI   [2 Articles]

Hello, The Quad timer is required for the ADC module and the SPI module for generating sync pulses. However, could somebody please explain what the sy...

PWM generation using Quad timer of 827   [4 Articles]

Hi, I am using 56F827 for my project. I want to know about Quad timer. I have configured the Quad timer for PWM generation. Please find the declaration for the ...

56F8365 Help when Configuring peripheral for GPIOC [0:3] using SIM_GPS

Hi, I would like to configure pin 0-1 to PhaseA1/PhaseB1 and pins 2-3 to SCI (MISO and MOSI). However the manual is not clear about if this is possible (reading about the SIM_...

Quad timers and Auxilary timers provided by SDK timer driver   [3 Articles]

Hi , I am using 56F827 in my project. I have gone through the documentation of SDK Programmer's Guide and found that SDK provides API for Timer Services. [Se...

Question on Quad Timer   [4 Articles]

Hi All Anyone Know how the calculation is done in the case of a quad timer. I am using DSP56f801, the IP bus is configured at 40 Mhz. const qt_sState ...

Reloading of on off time for quad timer for PWM mode.

Hi, I have an application for 56F827 processor, in which I am using Quad timer in PWM mode. On and off time for PWM mode of Quad timer will change according...

Understanding quad timer   [2 Articles]

Can someone help me understand how to calculate what frequency is output from the quad timer. After playing around with numbers i eventually came up with the fol...

Usage of COMPARE_AND_LOAG_REGISTER in 827 Quadtimer for PWM configuration

Hi, I have configured one quad timer in variable frequency PWM mode and would like to swap it's on/off time after some time. Please find attached applicatio...

DSP56F807 Quad Timers

Hello! Sorry for my English. :( I read the documentation and I try to determine usefulness of DSP56F807 for our purposes. I have some questions abou...

Capture signal period w/ 5680x timer   [2 Articles]

I'm trying to use a quad timer block to capture the period of an encoder input for velocity calculation. The problem I'm having is that the input period is quite sm...

What is wrong in this quad timer???   [3 Articles]

Hi. to understand working of the quad timer i have written this little software: //code begins(count up with ip bus clock -60mhz-) unsigned int cnt1; void...

do Ineed to use a timer if using the SPI as a slave?   [2 Articles]

I am using the SPI module on the dsp56f827 as a slave. It reads data on the MOSI but doesnt send anything back to the master on the MISO.Do i need to use a quad ...

(No Subject)

Hi! I have couple of questions. First; How can I set up interrupt for index and home signals for an encoder. My encoder signals are connected to Quad decoder...

56F827 ADC SYNC   [3 Articles]

I have been unable to find much information regarding the connection of the quad timer modual to the ADC sync input in the 826/827 users manual. Specificaly, I was ...

RE: DSP56F807 and motor servo application   [3 Articles]

It should be relatively simple to create the two additional quadrature decoder channels in software. Each quadrature decoder channel would use two Timers in the sam...

Dumb question on quad timers   [2 Articles]

I am trying to set up a quad timer (A0) to simply count up from 0 to 3125, then reset to 0 and continue counting up. My code is below; for some reason I can't fi...

Frequency meter to meas square wave signal   [2 Articles]

Hi, everyone does anyone already developed a frequency meter to meas square wave signal with range from 1Hz to 100Hz using "Quad Timer Module" in DSP56805? Tha...

qt_sState structure   [2 Articles]

I am using callbackOnCompare in the qt_sState structure for the quad timer. Could somebody explain how the callbackoncompare works, and also what InitialLoadValu...

Quad Timer Input Question

Hi, Has it always been the case where in order to see the input bit for a given timer channel that the Secondary Count Source has to be set to the counter chan...

How to use the two compare registers at same time?

hello, everybody. I have a question about compare registers of DSP56F805. There are four Quad Timers with four channels. Each Timer has two compare registers. ...

Again what is wrong in this quad timer???   [2 Articles]

Hi! i could’t solve my timer problem... my old message is below.....and now i am sending all project in attachment.is there anybody who can try this code in his/h...

Programming Data Flash on a F805

Hi, I know that is a old subject on this group but I did't found the answers to my questions in the archive. I'm trying to programm data flash on a F805 to sav...

Help receiving 4 dig signals + sending to pc (dsp56f827)

Hello, Can anyone help me with some sample code etc. I am using the dsp56F827EVM and I would like to create a program that receives four digital signals and...

dsp56000 assembler guide   [4 Articles]

Hello, All! I just got DSP56F807EVM.. I have some questions.. 1. From where I can download full dsp56000 assembler guide? 2. How can I read (view in de...

Measuring PWM with DSP56F80x   [3 Articles]

Hello all, I'm trying to measure the duty percentage of a PWM signal in the range of 200Hz-2KHz. I configured 2 timer channels in the following way: /*. ...

Quad Timer question

Here's an example of what I need to do: Suppose there's a motor with a toothed wheel (so you can determine it's exact position) and a user operated pushbutton. I...

DSP56827 Codec   [4 Articles]

I¹m working on a project for school and have been giving a DSP56827. I¹ve installed the Motorola SDK 2.41 and have tried to run the Codec sample project that came w...

ADC sync with PWM   [2 Articles]

Hi, I'm trying to use the synchronization feature of the ADC with PWM on a DSP56F805 and I don't find user manual clear on this subject. Form what I can unders...

Unhandled interrupt message?   [3 Articles]

Hi, I am using Quad timers and doing floating point calculation. [56F827] I am getting following message while debugging my code. how to know which interr...

Prescaler vs. Counter output pin as the primary source   [2 Articles]

Hi, I am using the DSP56858. This question relates to the Quad Timers. What is the difference between a prescaler as a primary source and using a counter oupu...

Design assistance -- JTAG and VREFH   [3 Articles]

I need some help designing a new board using the 56F8323. In looking for the minimum configuration for JTAG debugging I would like to confirm that the JTAG pins ...

Re: GPIO- Timer programming

If you check the FAQs on Motorola's web site (at http://e- www.motorola.com/cgi-bin/faq.cgi?kbase=dsp&prod_default=56800) and search on the key words "simple pe...

Quad timer in Cascaded count Mode

hi all, i am trying to implement a 32 bit syncronous counter using timer D module of dsp56f801a60, timer 2 and timer3 configured as follows timer2 *****...

FW: do Ineed to use a timer if using the SPI as a slave?

-----Original Message----- From: Corey, Rick Sent: Monday, November 17, 2003 3:27 PM To: 'TA1T' Subject: RE: do Ineed to use a timer if using the SPI as a...

Re: 56F801 define memory place in C

I'm not sure I understand your question, but here's my answer. Both peripherals and core registers are in the same X data memory. You can define both the same way....

Normal, Fast and Super Fast interrupt on 56805

Hi, I want to speed up the response of my interrupt on the input 1 of timerA and after reading the Embedded SDK Programmer's Guide I'm still confuse on h...

Quad timer initialization to generate interrupt on/off time (CMP1/CMP2)   [2 Articles]

Hi, I am using 56F827 for my project. I want to generate pulse of 160Hz and width i.e. on time is 0.0015 seconds. To generate the required pulse I have initialize...