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New version of Jumentum BASIC for LPC released

Hello, I have been writing Jumentum, a BASIC interpreter for the LPC series microcontrollers for about 2 years now which is for easily prototyping micrcontroller applications. ...

LPC 2144 I2C Slave

Hi, I wrote this function to inizialize the i2c0 devices but i think that is not correct init function because the i2c interrupt is not activeted. _BOOL init_i2c_0(void) { ...

LPC 2144 I2C Slave   [2 Articles]

I have a problem with i2c slave because I not have the correct inizialize procedure. I have used this procedure: _BOOL init_i2c_0(void) { I2CSlaveState = I2C_IDLE; I2CS_...

Problem with I2C initialization   [2 Articles]

Hi all! I've been trying to set up an I2C link between a LPC2368 and a device. > From this group's own "files" section, I've been adapting Owen Mooney's "i2c_w_error.c" file f...

Re: LPC2103 P0.2 and P0.3 problem   [3 Articles]

mjbcswitzerland wrote: > Hi All > > I have just build 3 boards with the LPC2103 on them and found the following problem (identical on all 3 boards): > - P0.2 and P0.3 can ...

Question about Keil debug peripheral for LPC2103.   [2 Articles]

Hello everyone, I am debugging some programs with Keil Real View and found that the simulated peripheral is a bit weird: It only has one I2C displayed. When I check the Pin ...

LPC2103 Power Consumption (@ 24-36MHz)   [4 Articles]

I was working on a solar power supply that will switch to battery backup when solar is insufficient, powering an lpc2103 and a couple sensors. Unfortunately, I haven't been able t...

Regarding I2C Interrupts back in track.   [3 Articles]

Hello Guys, I was able to accomplish the I2C Interrupts ; When I created a separate project for I2C Interrupts I was able to read all the data on req addresses but later when I ...

Interfacing 5v I2C circuit to Olimex-h2148   [8 Articles]

Hi all I have ATMEGA08-16 based circuit that I want to command from my Olimex-h2148 board using I2C protocol. The Atmel based circuit operates on 5v. LPC2148 I2C pins are 5v t...

Thanks a lot People !

Hello People , I got my I2C Interrupts working finally after setting the NACK bit before I stop the Communication between Master and Slave . Looking Forward, Samjith -----...

A curious thing (LPC2131)   [9 Articles]

How does one effectively use P0.14 (SDA) if it is also used to select bootload? Surely the necessary pull-up required to make the I2C line work also forces bootload mode? Ha...

Reg:Doubts in your code

Hello Ananda, In your code where have you specified the I2C Read End Address ? Regards, Samjith ------------------------------------ ...

I2C Interrupt Modification

Dear Sir, with the feedback given by you I was able to re-structure my I2C Interrupt routine.Interrupt is invoking properly everytime, but I am not able to get the desired result. ...

Interrupt re-constructed as you told Sir !   [6 Articles]

Dear Sir, with the feedback given by you I was able to re-structure my I2C Interrupt routine.Interrupt is invoking properly everytime, but I am not able to get the desired result. ...

I2C Interrupt problem in LPC2368   [3 Articles]

Hey ppl, I have a just got a small problem with I2C Interrupt . The I2DAT Register is reading only one memory location 0x00 from my slave always. My slave has data from 0x00...

Re: lpc2xxx serial number

Hi Francesco, > When we connect with our jlink we get > a unique serial number back so it IS present somewhere. Unfortunately NXP > remains silent to our question how to re...

New OPEN HARDWARE boards for the ARM Cortex-M3 LPC175x, from Opendous (the same guy from AVRopendous)

Hello :-) I am happy to announce the "Cortopendous" boards, Open Hardware. The person responsible for them is Matt, the guy behind the successful AVRopendous boards (also Open...

Re: Re: new SD code transfer to LPC2148 not quite working   [5 Articles]

This is I2C serial flash, not onboard RAM. rtstofer wrote: > > > --- In l...@yahoogroups.com , > Sutton Mehaffey wrote: > > > > 1. No. The bootloader is ...

SPI1 on LPC2148   [2 Articles]

It seems as though all registers for SPI can't be accessed or set unless SPI bit is turned on in PCONP. However, that doesn't seem to be the case for I2C. -- Sutton -----...

Reg: Feedbacks got for I2C Interrupt.

Hey ppl, with all your valuable and positive feedback i was able to establish the I2C Interrupt protocol . I have a just got a small problem with I2C Interrupt . The I2DAT Regi...

Unable to retrive the data from EEPROM   [4 Articles]

Hi, I am Kishore, I am using a renesas controller (R8C/1B4) . I have interfaced external EEPROM(AT 24C 256 & AT 24C 256 ) to the R8C1B4 using I2C. while I am doing with ...

Frequency of lpc2119 problem with MLX90614

Hi I have a problem with the frequency of the I2C pin of my lpc2119. I tried to communicate with a MLX90614, a temperature sensor, its working with SMBUS but I can use it with ...

LPC2368 Peripheral Clock Register Data Abort   [2 Articles]

I'm trying to change the peripheral clock dividers for all I2C channels (PCLKSEL0 @ 0xE01FC1A8 & PCLKSEL1 @ 0xE01FC1AC) but I get a Data Abort Exception whenever I try to change t...

sc16is752 - SPI-UART

Hi all, Is anybody is having Linux driver for sc16is752 through SPI.Actually this driver is there with me but that is through I2C. Pls help me in this regard.. Thanks in ...

Bootloader - cont'd

> Posted by: "Sutton Mehaffey" > I'm using an intermediate serial flash to hold the new firmware code > from the SD card. Anybody see a problem with not having any SD card...

Bootloader - cont'd   [3 Articles]

I'm using an intermediate serial flash to hold the new firmware code from the SD card. Anybody see a problem with not having any SD card functionality in my secondary bootload...

lpc2119 I2C Problem with SRF02   [5 Articles]

Hi all im trying to communicate with my sensor which is the SRF02. Ive got a LPC2119 with the eval board. Can someone help me ?? #define STA 0x20 //100000 #define SIC ...

Fwd: I2C Issue   [4 Articles]

The I2C Protocol which you have sent is fine , Coming to the Vectored Interrupt Controller Initializations , I have compared the init part of your coding with mine . Just ...

Re: LPC2148 I2C interface with AT24C256B IEEPROM   [10 Articles]

I use another Atmel chip, but are you reading a block or individual locations? I've noted over the years that between I2C commands, particular on RAM or Flash that some chips ...

I2C Issue

The I2C Protocol which you have sent is fine , Coming to the Vectored Interrupt Controller Initializations , I have compared the init part of your coding with mine . Just Check ...

Regarding I2C problem in LPC2368   [6 Articles]

I was able to configure and work with I2C interface in LPC2368 using Polling Method.There was no problem with the polling method. Now i am forced to use I2C using Interrupt Rout...

LPC2101: I2c init,Transmit & receive data when the processor is in Master mode

I am new to LPC.I want to delevelop a code in Keil microvision to operate I2c as a Master and an accelerometer(LIS302DL) as Slave. I just want to know how to initialize ,send and r...

LPC21xx gotchas   [2 Articles]

I wasted several hours on a simple use of GPIO bits. Could not figure out why my code would not output a high on P0.3 or 2, but can on other pins. Google found someone from NXP...

I2C in LPC2368   [6 Articles]

Is it possible to develop I2C without Interrupt Service Routines (ISR) ? ------------------------------------ ...

RE: Re: Working around LPC flash updates and endurance

Girish Pundlik Wrote > The upper limit of the LPC I2C interface is 400kHz, that gives approximately 40K=20 > bytes/second. A block of 256 bytes will actually entail 280 bytes of...

Re: Working around LPC flash updates and endurance   [3 Articles]

Hi Martin, It would make sense to use small size memory for cost concerns. So even using a 32Kb memory, that has a page size of 32 bytes (Microchip 24AA32A) will need 8 iteratio...

I2C and 'fast mode plus'

Hello, did anybody ever try to run a 'fast mode plus' I2C device at a clock rate of 1MHz with LPC2xxx? As the protocol is identical to 'fast mode', I wonder if it can be used w...

Re: Slave-host bus interface   [2 Articles]

--- In l...@yahoogroups.com, "Randy M. Dumse" wrote: > > Anyone know if there are slave-host bus interfaces on any of the > newer LPC offerings. So the ARM can sit as a pe...

Re: firmware upgrade using I2C only   [2 Articles]

Hi, > I would like to program the lpc2138 flash (on board) to a new firmware by using only the i2c. > > Can it be done? Should I use the IAR-EW “intel-extended” output...

Interrupt question   [7 Articles]

I am working with an I2C ISR and I was wondering what would cause the program to jump directly to the ISR when the I20Conset register is changed to start. I though the software in...