How to blink LED on LPC1788

Started by ezharkov in LPC20005 years ago 10 replies

I'm a software guy. New to ARMs. Not new to software in general or embedded in particular. Need something that would drive a 7" TFT. Not much...

I'm a software guy. New to ARMs. Not new to software in general or embedded in particular. Need something that would drive a 7" TFT. Not much besides the LCD, maybe a USART or two. Looking at this kit to start with: http://www.digikey.com/product-detail/en/UEZGUI-1788-70WVT/622-1058-ND/3202483 The kit seems to come with some sort of eUZ GUI library, which seems to use the Rowley Crossworks co...


NXP include files - where to get them?

Started by ezharkov in LPC20005 years ago 1 reply

OK, I'm playing Embedded Artists 1788 kit. They have a number of samples for it. The samples, among other things, come with files like...

OK, I'm playing Embedded Artists 1788 kit. They have a number of samples for it. The samples, among other things, come with files like LPC177x_8x.h. At the top of that file we read: * @author NXP MCU SW Application Team * Copyright(C) 2011, NXP Semiconductor So, Embedded Artists seems to be using the NXP files? But where do these files come from in the first place? Can I download them...


LPC2368 and LCD display, strange behaviour when main code is relocated

Started by Gabriele in LPC20005 years ago 3 replies

Hello everyone, I'm writing code for an LPC2368 where I'm using SD card file system in order to load the new firmware when needed. I'm...

Hello everyone, I'm writing code for an LPC2368 where I'm using SD card file system in order to load the new firmware when needed. I'm following the indication reported in the application note 10835 from NXP and I'm able to load and update the code. My Board use a 6963LCD plus a 4W touchScreen as input panel. I'm experiencing a strange behaviour when I run my relocated code. The LCD s...


LPC2129 - reading/writing char array to flash

Started by lawzaz in LPC20005 years ago 1 reply

I have appnote 11008 open right now and this seems like overkill for what I want (and I'm confused as to how I would extend for char arrays). I...

I have appnote 11008 open right now and this seems like overkill for what I want (and I'm confused as to how I would extend for char arrays). I have a board that reads a configuration file from an SD memory card. Sometimes, that card is unreadable and a value is needed regardless. The boards are tuned for different devices, so a single default will not work. Since I have tons of flash memory...


lpc1788 real time clock problem

Started by firmware111 in LPC20005 years ago 2 replies
RTC

Hi Guys, We have a product that uses the real time clock of the lpc1788. When the RTC is enabled it normally starts counting seconds then...

Hi Guys, We have a product that uses the real time clock of the lpc1788. When the RTC is enabled it normally starts counting seconds then minutes, hours and so on. But recently we got several lpc1788's that count all of those at once. So the seconds, minutes, hours, days, months and years are increment by 1 each second. A few days ago we got about 20 PCB's and 14 are working ok, but 6 of...


LPC2458 SPI_MISO setup time?

Started by dherity in LPC20005 years ago 2 replies
SPI

The LPC2458 Data Sheet gives a typical value of 11ns SPI_MISO setup time in Table 10 on page 52, but not a minimum. Does anyone know the minimum...

The LPC2458 Data Sheet gives a typical value of 11ns SPI_MISO setup time in Table 10 on page 52, but not a minimum. Does anyone know the minimum setup time? Without this information, a reliable SPI interface can't be designed. FYI, the LPC178x data sheet states a minimum of 14.8ns for the corresponding interface. ------------------------------------


Power Down LPC11A14

Started by Shashank Maheshwari in LPC20005 years ago 23 replies

Hi Has anybody used Power Down mode in LPC11A14. Apparently it only has a Sleep Mode and to use the power down mode one needs to shut down the...

Hi Has anybody used Power Down mode in LPC11A14. Apparently it only has a Sleep Mode and to use the power down mode one needs to shut down the PLL. I have set up external interrupts and then I shut down the PLL. I have programmed in a way that the PLL turns on in the ISR.However this does not happen and once it shuts down it does not start again. Has anyone worked on this ? Can someone...


switch from arm-elf to arm-eabi makes newlib malloc incompatible?!

Started by paloalgodon in LPC20005 years ago 1 reply

lpc2148. yeah, that makes me a dinosaur now, I know. Anyway, I've been through startup.S, syscalls.c and LPC2148ROM.ld about a thousand times...

lpc2148. yeah, that makes me a dinosaur now, I know. Anyway, I've been through startup.S, syscalls.c and LPC2148ROM.ld about a thousand times now. If I link with dlmalloc 2.6.4 which is from the arm-elf era, everything is fine. If I rely on newlib's malloc, or the latest dlmalloc (2.8.6) from a recent summon-arm-toolchain build, I never get any serial terminal output from my lpc2148 board. Look...


Cortex M3, DMA and JTAG

Started by misterhershel in LPC20005 years ago 2 replies

I'm using DMA to transfer data from memory through an SSP interface on a LPC1759. Everything works fine if I power up the chip, with the JTAG...

I'm using DMA to transfer data from memory through an SSP interface on a LPC1759. Everything works fine if I power up the chip, with the JTAG interface connected (IAR Jlink). However, with no JTAG connection, I get data errors during the transfer. It doesn't matter if I'm debugging with the Jlink or not, just that it's connected. The right amount of data is transferred, but about the last half ...


link to NXP LPC 11xx std peripheral device driver (CMSIS)

Started by Milind Kakati in LPC20005 years ago 2 replies

Hi All, =A0Could some one please point me to the NXP LPC 11xx peripheral drivers (C= MSIS)...

Hi All, =A0Could some one please point me to the NXP LPC 11xx peripheral drivers (C= MSIS) link. Thanks, Milind ------------------------------------


Ask a Question to the EmbeddedRelated community

To significantly increase your chances of receiving answers, please make sure to:

  1. Use a meaningful title
  2. Express your question clearly and well
  3. Do not use this forum to promote your product, service or business
  4. Write in clear, grammatical, correctly-spelled language
  5. Do not post content that violates a copyright