Are there any LPC board with audio CODEC??? > Newbie question

Started by Simao in LPC20004 years ago 4 replies

Hi! First time here posting. I´m looking for a LPC board with audio codec, I just want to play around generating I & Q signals and...

Hi! First time here posting. I´m looking for a LPC board with audio codec, I just want to play around generating I & Q signals and some basic digital filtering for a SDR radio project. Thanks a lot in advance. Simão ------------------------------------ Yahoo Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/lpc2000/ Your e


lpc21isp v160

Started by Xiaofan Chen in LPC20004 years ago 5 replies

Somehow I could not get lpc21isp to build under Ubuntu 8.04. mcuee@Ubuntu804:~/Desktop/arm/lpc21isp_160$ make gcc -D__FREEBSD__ -c -o...

Somehow I could not get lpc21isp to build under Ubuntu 8.04. mcuee@Ubuntu804:~/Desktop/arm/lpc21isp_160$ make gcc -D__FREEBSD__ -c -o adprog.o adprog.c gcc -D__FREEBSD__ -c -o lpcprog.o lpcprog.c gcc -D__FREEBSD__ -c -o lpcterm.o lpcterm.c gcc -D__FREEBSD__ -o lpc21isp lpc21isp.c adprog.o lpcprog.o lpcterm.o lpc21isp.c:244: error: static declaration of 'debug_level' follows non-static...


USB mouse code for lpc1769 as host

Started by nikita_linux in LPC20004 years ago 2 replies

Hi, I am in need of usb mouse source code for lpc1769 LPCXpresso board , The sample codes have keyboard with LPC board as host but not for...

Hi, I am in need of usb mouse source code for lpc1769 LPCXpresso board , The sample codes have keyboard with LPC board as host but not for mouse,the code simply takes input from joystick at GPIO pins and send it to PC host. What changes do I need to use keyboard_host program for mouse ? I also want to use usb hub with LPCXpresso board, Any other suggestions.. Waiting for rep...


Is it possible to invert PWM output on LPC1114?

Started by bobryanmm in LPC20004 years ago 8 replies
PWM

I am trying to drive a servo using the following function and I've messed with the EMR register but I think the values are basically ignored...

I am trying to drive a servo using the following function and I've messed with the EMR register but I think the values are basically ignored because I've got PWM output enabled for MR0/MR1. The datasheet says we need to read a set of rules that apply when PWM mode is used. I know I can get around this by triggering interrupts with the timers/compare modules then toggling the IO pins in the interru...


LPC1769 USB interface

Started by nikita_linux in LPC20004 years ago 3 replies

Hi, I am new in this area. I need to interface lpc1769 with usb mass storage device (pendrive) , HID(mouse and keyboard). I could not get any...

Hi, I am new in this area. I need to interface lpc1769 with usb mass storage device (pendrive) , HID(mouse and keyboard). I could not get any sample code on lpc site .Where can I find it. ------------------------------------


LPC2129 - Altered board design, T0 ISR not working as expected?

Started by sieg...@gmail.com in LPC20004 years ago 3 replies

Hi all, I have a design we've used for a number of years with an LPC2129/01. We recently made a few changes to the board, and now our...

Hi all, I have a design we've used for a number of years with an LPC2129/01. We recently made a few changes to the board, and now our Timer0 isn't trigger the ISR as it should (FreeRTOS's 'vTaskDelayUntil' never returns). On our old design (batch CW5025), the compiled binary works great - tasks loop properly, all the processing gets done, etc. On our new design (batc...


lpc 2148 based pc oscilloscope

Started by anik...@yahoo.in in LPC20004 years ago 3 replies

Hello i trying to make pc oscilloscope using lpc 2148.. 1)what would be the maximum 'digital signal' frequency i can apply at the...

Hello i trying to make pc oscilloscope using lpc 2148.. 1)what would be the maximum 'digital signal' frequency i can apply at the inputs of lpc 2148 for proper processing? 2)As said in datasheet, for 10 bit ADC max sampling rate is 400 kSPS so what sampling rate should i take for proper regeneration of input 'analog signals' on display? or if i set the sampling rate at ...


RE: lpc 2148 based pc oscilloscope

Started by lpc2...@slomotion.nl in LPC20004 years ago 3 replies

1) the maximum frequency that can be applied to the gpio's will probably be stated somewhere in the datasheet. 2) The maximum frequency of...

1) the maximum frequency that can be applied to the gpio's will probably be stated somewhere in the datasheet. 2) The maximum frequency of an analog signal depends on what you want to see and your external filters. The more samples you have per full oscillation of your analog signal the better the image will get. But suffice it to say your max input frequency will be "low", less th


LPC1764 SPI assistance with 25LC512 EEPROM

Started by Nick in LPC20004 years ago 17 replies

Hey guys, I'm in a bit of a bind. I am using an LPC1764 with LPCexpresso version 5.2.6 with an LPC-Link 2. The problem is that I'm not...

Hey guys, I'm in a bit of a bind. I am using an LPC1764 with LPCexpresso version 5.2.6 with an LPC-Link 2. The problem is that I'm not sure if my connections are right or if my software is configured correctly. Here is a simple layout of the connections: http://i188.photobucket.com/albums/z265/fac7orx/eepromARMpic_zpsdc524e83.png Here is a link to the EEPROM datasheet: http://ww...


LPC2132FBD4 RS485 polling problem: random resets

Started by chad...@bigpond.com in LPC20004 years ago 15 replies

I have an interesting issue with a product thats been in production for 7 years that now uses an LPC2134FBD64/01 it was originally designed using...

I have an interesting issue with a product thats been in production for 7 years that now uses an LPC2134FBD64/01 it was originally designed using an LPC2132FBD64 before the /01 parts where released, but the LPC2134FBD64/01 device has been used for years without any issues. The product is polled from a PC via an Aten RS232 to RS485 converter and for years this setup worked fine with very f...


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