Simple ARM ISP

Started by Mihai Andrei Stanimir in LPC200011 years ago 9 replies

Hi all, After successfully programming Atmel uC, I am now moving to LPCs. I'm a DYI guy and after successfully destroying my parallel PC...

Hi all, After successfully programming Atmel uC, I am now moving to LPCs. I'm a DYI guy and after successfully destroying my parallel PC interface trying different adapters, I find myself forced to look for a USB or serial (JTAG) programmer. I'm not sure what I need as I'm just starting to understand ARM, and never used JTAG before. What I'm looking for is a very simple schematic of an a...


Delay Function

Started by acetoel in LPC200015 years ago 2 replies

Hello folks does anybody have or know the best way to make a little function in a C ompiler to make a delay with a LPC2106?...

Hello folks does anybody have or know the best way to make a little function in a C ompiler to make a delay with a LPC2106? Let's say 10mSeg... My clock is 60Mhz... I'll update a Zip file full of C code for Atmel AVR... It has drivers for Compact Flash, Har


Re: Atmel dataflash

Started by md23ch in LPC20008 years ago 3 replies

Dear Experts, I have the LPC1768 base board equipped with the AT45DBxxxx. Do you have some code example how to deal with the data flash. I...

Dear Experts, I have the LPC1768 base board equipped with the AT45DBxxxx. Do you have some code example how to deal with the data flash. I will appreciate it very much. Thank you in advance md23ch --- In l...@yahoogroups.com, "Tim Mitchell" wrote: > > Hardware SSEL pin is for when the LPC is an SPI slave. > It isn't used when LPC is an SPI master, just use GPIO as the o


SRAM loader?

Started by david_z_lawson in LPC200015 years ago 1 reply

I just received the MCB2130 and was able to get a program to load and run via JTAG. Is there a program that will let you load a...

I just received the MCB2130 and was able to get a program to load and run via JTAG. Is there a program that will let you load a program into sram through the serial port and is there a way to execute it after loading it? I'm running on windows xp. Eg, atmel has a program called


LPC2368 GPIO Interrupts

Started by da_fatkid in LPC200011 years ago 2 replies

Noob here, I'm just starting out with the LPC2368 using the Keil compiler software. I've come from using Atmel chips and the way of defining...

Noob here, I'm just starting out with the LPC2368 using the Keil compiler software. I've come from using Atmel chips and the way of defining interrupts on pins was somewhat easier... I was wondering if anyone out there could give a short tutorial on how to define one of the GPIO pins, say P2.15 as a falling edge interrupt? I've been beating my head against a wall trying to get it to work....


AT91SAM7 Yahoo! group

Started by Rick Collins in LPC200015 years ago 5 replies

I saw that there were people posting questions about the Atmel SAM7 ARM chips in other Yahoo! groups. So I thought I would start...

I saw that there were people posting questions about the Atmel SAM7 ARM chips in other Yahoo! groups. So I thought I would start a group just for these chips. If you have an interest, please join. I hope it can be half as sucessful as the LPC2000 group.


ARM / GCC newbie

Started by c_hall2001 in LPC200015 years ago 2 replies

I'm just starting out with the ARM controllers and GCC. Currently I am using the Atmel ATmega128 with the Codevision compiler. ...

I'm just starting out with the ARM controllers and GCC. Currently I am using the Atmel ATmega128 with the Codevision compiler. Codevision hides all the details of linking and all the other details that you need to deal with in GCC + ld. My question is this-- Is there


limited host functionality w/ 2148?

Started by leon545b in LPC200014 years ago 2 replies

Hello - Does anyone know if the 2148 USB i/f could be used as a host in a=20 limited way? We need to be able to connect to a keyboard or a...

Hello - Does anyone know if the 2148 USB i/f could be used as a host in a=20 limited way? We need to be able to connect to a keyboard or a printer=20 (as a host), and to a PC (as a device). All the separate host/OTG chip=20 solutions I've seen discussed here (Atmel, Cypress, and Pillips) are=20 overkill for our application.=20=20 I haven't delved into the 2148's capabilities enough to ...


pin schematic for lpc17xx

Started by Tim Mitchell in LPC20008 years ago 3 replies

Has anyone seen anywhere a GPIO pin schematic for the LPC17xx devices, i.e. the circuitry inside the pin. I have a feeling I have seen it in the...

Has anyone seen anywhere a GPIO pin schematic for the LPC17xx devices, i.e. the circuitry inside the pin. I have a feeling I have seen it in the datasheet/user manual but now cannot find it. Or I might be thinking of Atmel AVR. I really just want to know what protection diodes are on the pins and how they are connected - I am curious about what happens when you put 5V on the 5V tolerant pins an...


Re: New LPC3200 ARM926 MCUs with Ethernet, LCD, USB

Started by dpbevin2k in LPC200012 years ago 2 replies

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...

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 to ARM + peripherals... and it seems that NXP have finally found it for me. My research has shown that (previously) ARM9 processors by the likes of NXP, Cirrus Logic and Atmel all had one key component missing - suc...


Other ARM email lists?

Started by Brett Delmage in LPC200015 years ago 2 replies

Can anyone provide pointers to email lists like this one for other ARM families, like Atmel or OKI, or ARM manufacturer-agnostic? I...

Can anyone provide pointers to email lists like this one for other ARM families, like Atmel or OKI, or ARM manufacturer-agnostic? I am aware of the comp.sys.arm newsgroup This list appears to be an incredible resource and I am very much considering an LPC2292 for my next proje


Need help on LPC2142

Started by SohaIb Qammar in LPC200011 years ago 13 replies

Hi Forum Members I am Electrical Engineer(majors in Computer Science). I have worked on Atmel controller AT89S52 (8051 family) about...

Hi Forum Members I am Electrical Engineer(majors in Computer Science). I have worked on Atmel controller AT89S52 (8051 family) about 2.5 years. I have done projects with it mainly motor controllers & ADC interface, display interface, also done my final year project with AT89S52 on Robotics. Now i got the internship where i have to work on LPC2142 controller, i have done progr...


I2C on LPC2148

Started by Sutton Mehaffey in LPC200014 years ago 9 replies

I'm back on my I2C problems since I was pulled off the project for a month or so. I'm still having some problems. The problem I thought was I...

I'm back on my I2C problems since I was pulled off the project for a month or so. I'm still having some problems. The problem I thought was I was trying to address a 5V RAM instead of a 3.3V RAM. I have now a couple of ATMEL 256K serial RAM - 2.7V to 5V. I am still having trouble with understanding the status of the I2C bus. It appears I am getting the correct status, but even when the R...


ARM7 in all GPS modules....

Started by medwar19 in LPC200012 years ago 3 replies

Hi All, I've developed a few GPS logger solutions around the LPCs and it's frustrating that most GPS modules have an ARM7 core inside...

Hi All, I've developed a few GPS logger solutions around the LPCs and it's frustrating that most GPS modules have an ARM7 core inside already. The latest u-blox modules have SPI, RS232 and USB ports right off the GPS module which is everything I need but I still have to bolt on another LPC to do a little file system stuff and add a few sensors. Atmel just announced a new micro with...


Re: Is it possible to port uCLinux in LPC2106

Started by Boris Estudiez in LPC200014 years ago

01/10/2005 - 12:30 AFAIK, You need >2MB program storage so Flash-based MCUs are out, also is necessary a MMU (Memory Management Unit). ...

01/10/2005 - 12:30 AFAIK, You need >2MB program storage so Flash-based MCUs are out, also is necessary a MMU (Memory Management Unit). The Atmel AT91R40008 is a very popular device for running uCLinux. There is a project that support uCLinux for ARM-7 based devices without MMU, look here:


Writing 8 bits on the IO port

Started by acetoel in LPC200015 years ago 3 replies

Hello, I making a little protocol to interfase between a LPC2106 and an Atmel 8bits MCU. My idea is to use an 8bit data bus (P0.14 to...

Hello, I making a little protocol to interfase between a LPC2106 and an Atmel 8bits MCU. My idea is to use an 8bit data bus (P0.14 to P0.21) for sending and receiving bytes, and then a few control lines (Busy/Ready, Clock, Enable, Command/Data). How can I write a byte variable (char) to that 8bit port? and how can I read that data port, and s


I2C ?

Started by Sutton Mehaffey in LPC200014 years ago

I have an I2C question that has been bugging me for a month now. Any time I issue a SLA+R to read from a particular address from any chip, I...

I have an I2C question that has been bugging me for a month now. Any time I issue a SLA+R to read from a particular address from any chip, I have to wait one extra cycle before the data is ready on the bus. This is both for an EPSON RTC and an ATMEL RAM chip. Is this normal operation for those who have done I2C? I can't find in any datasheet that you must wait this extra cycle, but I have...


LPC1114 - SPI Clock speed

Started by nico...@gmail.com in LPC200010 years ago 5 replies

Hello all! I'm having some problems setting up ssp clock speed on a LPC1114. I want to set it to 15 MHz to communicate with an ATMEL AT45DB011D...

Hello all! I'm having some problems setting up ssp clock speed on a LPC1114. I want to set it to 15 MHz to communicate with an ATMEL AT45DB011D flash memory, but only get 3, no matter what I do, and I'm sure it's not a software problem since I already have this working with an LPC2368 at 15 MHz peripheral clock. On the other hand, AT45DB011D electrical specifications does not specify a minimum ...


Bootloader minor enhancment suggestion

Started by John Heenan in LPC200014 years ago 6 replies

I suggest a formal request be made to Philips with regard to their bootloader for the following minor enhancements. None of these suggestions...

I suggest a formal request be made to Philips with regard to their bootloader for the following minor enhancements. None of these suggestions are strictly necessasry. The suggestions would simply make working with the LPC slightly easier. The suggestions are to enable a programmable flash space and interrupt remap location modelled on the ATMEL AVR system while retaining their current...


LPC2148 with SPI EEPROM

Started by Sutton Mehaffey in LPC200014 years ago 2 replies

Anyone used the ATMEL EEPROMs? Just a curiousity question. I was wondering why the 8 byte write limitation on a single write (page)? Not...

Anyone used the ATMEL EEPROMs? Just a curiousity question. I was wondering why the 8 byte write limitation on a single write (page)? Not only that, if you write somewhere in the middle of the 8 byte page, you have to end the write at the end of the page and issue another write at the beginning of the next, even though the addresses are sequential. The Read has no such restriction. Why i...