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LPC2378 , RTC issue   [2 Articles]

Hi there, Iam trying to read from RTC_SEC register and update the same value to the LED's which are connected to the LED's that are interfaced to P2.0 to P2.7(Keil MCB2300 eval....

Re: Will it be a problem with GCC compiler ?

--- In l...@yahoogroups.com, "raju_nem" wrote: > Here is the flow of code. > > Main() > { > > /*UART0 interrupts occures*/ > } > UART0_isr() > { > > ...

Re: Re: interrupts of RTC

> here i am able to download the zip file inside the Folder(folder name is > RTC(rtc interrupt)).Have u installed "winrar" which can zip or unzip the > files. > Downloa...

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

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 be configured as inputs (they are th...

Life Expectancy of CR2032 Battery w/RTC   [14 Articles]

I was wondering if anyone here has any concrete experience with how long you can expect a (decent quality) CR2032 to work connected to RTXC/VBAT on something like a 2148? I was us...

Re: LPC2148 uart problem

Stijn, Here's my $0.01 worth of advice: - follow Richard's advice on writing your own %$#@_f I/O routines based on K&R examples - here's my version for an scanf-like rou...

Problem of RTC when power is off ?   [3 Articles]

RTC is working fine as long as power is on.When remove the power and take time and again giving power,RTC is started running with time where i remove the power.It means not sho...

RTC problem of LPC2148 using gcc   [3 Articles]

This is the code for RTC,i am trying to printing the HOURS,minutes and seconds by reading the HOUR,MIN and SEC time counters of RTC.I am getting zero even i am setting the time by ...

Re: interrupts of RTC   [22 Articles]

i am using only one isr_routine that is RTC,no other isr routines in my code.Even with this isr routine also,is not called.At this initialization part only struck up.I am posting t...

WOrking of RTC in LPC2148   [7 Articles]

HI i need to use rtc of lpc2148.For every sec, i need to send the time to Hyperterminal.I am using gcc compiler.i searched sample codes.Those are not working.Any one wo...

Re: LPC2103 RTC and battery backed up variables

Not exactly the same topic but still RTC related. I am wondering what is the difference between the following count increment interrupts? - day of week - day of month - day o...

RTCK on lpc1313 (Up? Down? Does it matter?)   [3 Articles]

I should get a few samples of the LPC1313 and LPC1343 tommorow from Digikey, and was just finishing off a simple board to test them out. I've added JTAG, and broke out most of the...

Problem with EINT3   [3 Articles]

Hi I'm probably missing something subtle here, but inmy application I have a keypad controller IC (MAX7359) with it's interrupt output connected to EINT3 on my processor (LPC214...

RTC doubt with LPC2368   [7 Articles]

Hi everybody. I'm Wagner, I'm from Brazil. This is my first post here, I'm starting w= ith ARM7 (I bought a board from ETT -Thailand with LPC2368) and I amazed wi= th this...

Stability of 32khz PLL source for LPC24xx devices   [2 Articles]

I am using the LPC2478 device which has the ability to use the RTC xtal as the PLL input to derive all the clocks, as opposed to using a separate external osc. Is there any downsid...

Restore PLL after wake up from Power Down   [4 Articles]

Hi, I'm writing some code to make use of Power Down mode and wake up using RTC alarm interruptions (with INTWAKE bit 15 set), but came across a little problem. After waking up, a...

Re: OpenOCD in Windows Vista 64?

I managed to get everything working on my Vista 64 machine. It took a few sorta painful days working with the openocd.cfg and gdb init scripts but now I'm able to remotely debug, s...

Re: LPC2103 Power Consumption (@ 24-36MHz)   [2 Articles]

--- In l...@yahoogroups.com, jtd wrote: > > On Thursday 10 September 2009, kevin_townsend2 wrote: > > I was working on a solar power supply that will switch to battery ba...

RTC LOCK   [2 Articles]

Hello guys, I have a doubt in RTC driver of LPC2368 . After the Setting the Date and Time is there any provision for Locking up the Registers of RTC so that no one can change th...

RTC current consumption   [3 Articles]

This issue was partially covered Nov 3, 2008 8:48 pm but I have further questions: In the errata sheet, the PCONP register is mentioned and I'm supposed to clear the PCRTC bit ...

RTCK high or low on LPC2103?   [7 Articles]

I've been looking at a variety of schematics for an LPC2103 board I was working on, and it I've seen RTCK on the JTAG port pulled both high and low on different schematics. I pull...

Re: Driving LEDs directly from LPC2378   [5 Articles]

Hi: Note that the bit 3 of PINSEL10 is read from RTCK signal in the JTAG connector at reset time, and that is recommended to have a 10k pull-up resistor on this pin. This could ...

Re: LPC2132/01 ISP issue

The LPC2132 datasheet itself says: "If the RTC is used, VBAT must be connected to either pin V3 or an independent power supply (external battery). Otherwise, VBAT should be tied...

RTC in LPC2129   [7 Articles]

Hi all I was just wondering why there is no VBAT pin and Crystal inputs in LPC2129. If there in RTC on chip then Battery backup and crystal is a must. Can you pls help me understa...

RTC in LPC2129

Hi all I was just wondering why there is no VBAT pin and Crystal inputs in LPC2129. If there in RTC on chip then the Battery backup and crystal is a must. Can someone pls help m...

RTC and power consumption   [3 Articles]

Hello everybody, I'm interested in LPC24xx and i'm currently working on RTC feature. My aim = is to keep RTC running when my system is plugged off, so i need to determin= e ba...

Fwd: I2C Issue   [3 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 ...

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 ...

LPC2378 external crystal problem

Hi I am developing a board using the LPC2378 ARM microcontroller.I am using the Keil Uvision3 as the compiler. The whole system works perfectly with internal 4Mhz all UART's,...

LPC2378 external crystal problem

Hi I am developing a board using the LPC2378 ARM microcontroller.I am using the Keil Uvision3 as the compiler. The whole system works perfectly with internal 4Mhz all UART's,...

LPC2106B (old), JTAG disables P0.18-31???   [5 Articles]

Olimex says, in their LPC2106 board document "Important: when JTAG is enabled P0.18-P1.31 ports take their JTAG alternative function no matter of PINSEL register value, so during...

My new board   [3 Articles]

A word of thanks for the suggestions for the problems with the board. It wasn't the chip, and OCDRemote was already running at -s7. The DBG link on the OLIMEX board was made,...

RTC value jumps if battery RAM location is written with some value   [3 Articles]

=A0 Hello all, =A0 I am using LPC2468 in my application wherein i wanted to initialize my RTC = during the application startup. Before initializing the RTC i must check wh...

RTC on LPC2478   [3 Articles]

Hi all, I got a RTC issue on the LPC2478, when the device resets the time and date is ok, when power is cycled the time is still ok but date is corrupt, data sheet for RTC sa...

LPC2378 Battery RAM area   [3 Articles]

I'm trying to used the Battery RAM area to save data during power off. I have Vbat connection and RTC works fine, but the Battery RAM does not hold the data. Area is 0xE0084000 - 0...

LPC 2368 RTC values reset to zero   [3 Articles]

Hi i am working with LPC 2368 and using 32k external crystal for RTC and cell as RTC power supply. RTC is working fine, i can set and read RTC successfully, but some times it r...

RTC values reset to zero   [2 Articles]

Hi i am working with LPC 2368 and using 32k external crystal for RTC and cell as RTC power supply. RTC is working fine, i can set and read RTC successfully, but some times it res...

=?koi8-r?Q?Re=3A__Re=3A_Power_Down_mode_for_LPC2368?=

Greetings, Alex. Excuse that did not answer, left far. Coming back to our talk on RTC wakeup has made the following: I start RTC RTC_ILR=0x03; RTC_CCR=0x11; RTC_CI...

Incorrect RTC Alarm(23:59:59) Issue in LPC2101   [6 Articles]

Hi all, I am working on LPC2101 for past 4 months. I am facing one unexpected behavior when put LPC in to Powerdown mode long time and wakeup using RTC Alarm. Sample c...