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Power electronic control   [13 Articles]

Dear group I am planning a high efficiency 3-phase inverter, but having problems selecting the control platform. I am currently stuck between the LPC ARM7, Freescale, and T...

NXP LPC176x Cortex-M3 family.   [3 Articles]

NXP has posted a datasheet for the new Cortex-M3 family of MCU, the=20 LPC176x. These parts are pin-for-pin compatible with the LPC236x=20 series of ARM7 controllers.=20=20 K...

AW: Using PWM on an LPC2101

Hi ?, > // Configure P0.8 > PINSEL0 &=3D ~(3 < PINSEL0 |=3D 2 < =20 > T2TCR =3D 1 < T2PR =3D 5; // Prescaling > T2MCR =3D 1 < PWM0CON =3D 1 < T2EMR =3D 1 < ...

Using PWM on an LPC2101   [4 Articles]

Hey there, unfortunately I have quite some troubles when trying to use PWM on pin P0.8 (MAT2.1) of my LPC2101 controller (without the use of interrupts). The following code i...

Dead time insertion - LPC213XX PWM   [22 Articles]

Dear All, I have created 3 PWM sine wave outputs on LPC2136. Any idea how to create 3 more complimentary output with dead time insertion from driving a 3 phase MOSFET bridge? ...

Re: Evaluation Boards (what about Olimex?)   [2 Articles]

I need to jump in and recommend another alternative here...=20=20 Don't forget the Olimex boards. These are usually the most feature rich for the price. Both boards below u...

Re: Re: 3 phase AC drive using LPC2136

dear Mukund Deshmukh, But you would be using a resource to understand the algorithm and and to implement it. I was asking abt that so that i could clarify some of my doubts wit...

Re: Re: 3 phase AC drive using LPC2136

No, I am not using PIC reference, but developing my own. Warm Regards, Mukund Deshmukh, Beta Computronics Pvt Ltd. 10/1 IT Park, Parsodi, Nagpur -440022 India. Web site - h...

Re: Re: 3 phase AC drive using LPC2136

hello Mukund Deshmukh, I had some doubts in the caculation part of the algorithm. Can i know which application datasheet have you been using for you code development. I've be...

Re: Re: 3 phase AC drive using LPC2136

I have decided to use LPC938 and not LPC2136, because of PCB space and cost. Warm Regards, Mukund Deshmukh, Beta Computronics Pvt Ltd. 10/1 IT Park, Parsodi, Nagpur -440022 ...

multiple frequencies generation   [6 Articles]

Hi, I'm working on a stepper motor control application with six motors. I need to generate independent step signals for each motor within 0 - 100khz. There is a way to generate ...

error while compiling pwm.c

Hi, I am trying to compile pwm.c and I am getting few errors in the nested interuppt region. Please see the picture under album pwm_error for a list of errors. The code fo...

Re: PWM glitch possible when setting new duty-cycle value?

could i jus go through your motor control code Raj ----- Original Message ---- From: joconradt To: l...@yahoogroups.com Sent: Friday, May 23, 2008 1:53:38 AM Subject: [...

Re: 3 phase AC drive using LPC2136   [9 Articles]

Dear Mr Deshmukh, Are u going to generate PWM pulses with LPC2136? Ravi On Tue, 24 Jun 2008 Mukund Deshmukh wrote : > Dear All, > Just wondering if LPC2136 has any issues ...

Re: Sanity check with incr. quad. encoder   [2 Articles]

Are you writing to IOCLR or IOSET, when you really meant to be writing to IOPIN? Coming from older style micros, I did that kind of stuff a few times. If you enabled fast IO,...

PWM output behaviour

Aloha, I'm pwm oto drive 3 led's (RGB). I'm using PWM1, PWM2 and PWM5 output of an lpc2148. The pwm outputs work well, but only if the pwmmr value is not equal to 0 or to...

PWM6 on LPC2148 does not work   [2 Articles]

Hi, I'm using a Olimex LPC2148 board, and have a problem with the pwm output on PWM6. PWM on all other channels works fine, only the pin 0.9 PWM6 does not work. My code con...

Re: CLKOUT on an LPC2378?

--- In l...@yahoogroups.com, "steve gallagher" wrote: > > Hi, > > I'd like to clock an external peripheral (at ~20 MHz) from a 2378. > Any ideas how to do this? > ...

PWM glitch possible when setting new duty-cycle value?   [4 Articles]

Hi LPC users, I am programming LPC2103 in a motor control application using PWM on timer0. I have set T0_MR3 to specify the cycle length (let's say 1000 timer ticks) and I am ...

PWM Duty Cycle   [13 Articles]

Hi all, I'm working on LPC2148 for PWM generation. Below is part of code used for setting of PWM module. PWMPCR =3D 0x00001000; //Enable single edge controlled PWM4 PWMMCR =3...

PWM dutyCyle

 Hi all,I'm working on LPC2148 for PWM generation.below is part of code used for configuration/setting of PWM modulePWMPCR = 0x00001000; //Enable single edge controlled PWM4PWMMCR ...

Re: New LPC3200 ARM926 MCUs with Ethernet, LCD, USB   [3 Articles]

At last! An ARM controller with all of the peripherals I need (with the possible exception of CAN). For the last 18 months I have been in search of the holy grail when it comes t...

RE: Reading state of a capture pin

Yes, I've already configured it to give me an interrupt for either edge. When I get the interrupt, I don't know which edge has occurred. I believe I have found the answer to m...

ADC & PWM

Hi all CPU=3DLPC2148 crystal =3D 12 Mhz PLL =3D 4 Following pgm I wrote to get PWM freq 1.2 Khz, but it is generating=20 1.5 Khz, with correct duty cycle of 50%. I want ADC...

PWM for the NXP LPC2368   [2 Articles]

I am hoping that someone could help me to understanding how to generate a PWM Clock ouput. In short: I am attempting to generate a 1Mhz output using PWM1_5 of the LPC2368 ...

Looking for a good book on how to use the ARM processor   [4 Articles]

I am looking for a good book that discusses how to use the many features of the ARM processor with some samples in C. What I have found are that most books go way overboard...

RapidiTTy Lite 1.5 - FREE IDE for LPC2000

TTE Systems have just released a new version of RapidiTTy Lite (v1.5). The tool provides extensive support for system development (code compilation and debug) using LPC2000 de...

RE: ARM Recorder

ARM'S A/D and PWM To: l...@yahoogroups.comFrom: r...@yahoo.com.brDate: Mon, 17 Mar = 2008 11:13:10 +0000Subject: [lpc2000] ARM Recorder Hi folks,I've started to develop my gr...

Re: ARM Recorder

Rodrigo Cavaleiro wrote: > Does somebody have an electrical schematic to > produce an recorder? See: http://www.tte-systems.com/books.php Chapter A9 shows you how to car...

RD-RES book project: New code examples   [2 Articles]

After a long delay (sorry ...), we have begun the next round of updates on the RD-RES book project. A new code example (speech playback using PWM) has just been uploaded to th...

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sorry ,i can't login the web , so i have some questions about why i can't = post my email ,i need somebody help me about lwip =0D =0D ------------------ =D4=AD=CA=BC=D3=CA=B...

Help with LPC2148 PWM?   [2 Articles]

I'm trying to get PWM working, and obviously missing something. I want to use PWM5 as the output, and have it run continuously at a 50% duty cycle. The rate is unimportant at ...

Re: Digest Number 3046   [2 Articles]

> > Anyone knows if I can operate the two ADC interlevaded or in parallel > > to achieve 800KHz sampling? > > We use a LPC213x with 200 KHz sampling for a DAC interleve...

Re: ARM with 12-bit ADC

--- In l...@yahoogroups.com, "Victor Suarez" wrote: > > I need to achieve 400Khz sampling (one channel) with an LPC2138. I can > do pooling and any sort of tricks, but I...

R: RE: RE: PWM

Well, I've not do such application but if I've understand you like to change the duty-cycle of the PWM output wave accordling to some sinewave rule. If this is your work I can t...

PWM

Dear all, Processor:LPC2148 IDE:WinARM Can any one please explain me how to generate PWM with sinewave and trangular wave. Do I need to make sinewave lookup table. It has bee...

Re: Re: RE: RE: PWM   [3 Articles]

Hi Do I need to make ISr like below: static i=3D0; PWMMR1 =3D 0; //first edge at the start of pulse cycle void PWMISR (void)=20=20 { if(i> =3DLookupLength)//SineLookup array...

Re: RE: RE: PWM

I could able to generate PWM of constant width, but then how to modulate the width with sine wave amplitude ? whether I have to make PWMMR1 =3D sinewave amplitude in ISR routine?...

Re: RE: PWM   [2 Articles]

Hi Paul, My question is how to use single edge/double edge controlled feature of PWM modulator to generate PWM? Ravi =A0 On Tue, 12 Feb 2008 Paul Curtis wrote : > Hi, > >...

RE: PWM

Hi, > Dear all, > Processor:LPC2148 > IDE:WinARM > Can any one please explain me how to generate PWM > with sinewave and trangular wave. > Do I need to make sinewave ...