My ISR_RTC is loosing milliseconds every second

Started by sodele288 in LPC90013 years ago 4 replies

Hi everybody! I'm working on a time sheduler that counts the seconds based on January 1, 2000 in order to represent the actual time...

Hi everybody! I'm working on a time sheduler that counts the seconds based on January 1, 2000 in order to represent the actual time and date using the Keil LPC900 Development Tools MCB900/LPC935, EPM900 Emulator, and uVision3. An external 4.194304 MHz crystal with the divide-by-128 prescaler and a 32768-1 reload value delivers the 1


LPC901 Total Power Down Mode + Keypad Interrupt

Started by ow_tong_peow in LPC90013 years ago 14 replies

Hi, I am using LPC901 with external 32khz watch crystal. After startup, I enable the KBI, and then the uP goes into Total Power Down...

Hi, I am using LPC901 with external 32khz watch crystal. After startup, I enable the KBI, and then the uP goes into Total Power Down mode. It is consuming about 3uA. Then I trigger the Keypad Interrupt, the timing for uP to wake up took about 2 seconds. Then, I test it again with IDLE mode, the uP wakes up almost immedi


lpc935 12MHz or 18MHz

Started by n172tj in LPC90013 years ago 2 replies

Dear philips_apps monitoring, conflicting numbers in docs: in Rev5 Product Data Sheet 2.2 Additional features, middle of page ...

Dear philips_apps monitoring, conflicting numbers in docs: in Rev5 Product Data Sheet 2.2 Additional features, middle of page "Oscillator options support frequencies from 20 kHz to the maximum operating frequency of 18 MHz." but Ordering Options list "0 MHz to 12 MHz" may i or may i not connect 18MHz crystal? jos


Version 1.8 ICP specs

Started by Fausto Marzoli in LPC90013 years ago 2 replies

I've read these new version of the ICP specs. There is still at least one MACROSCOPIC error: I think you will never ICP program...

I've read these new version of the ICP specs. There is still at least one MACROSCOPIC error: I think you will never ICP program anything using this specifications. -- Fausto Marzoli - 8052.it - http://www.8052.it/ Owner, Web Master & Mailing List Moderator


New member of the LPC900 family LPC9102 / 9103

Started by philips_apps in LPC90013 years ago 2 replies

Hi, have you seen the press release today about the newest and smallest members of the LPC900 family. A slightly revised text of...

Hi, have you seen the press release today about the newest and smallest members of the LPC900 family. A slightly revised text of the press release: Tiny new devices in 3 x 3 x 0.85mm package offer double the functionality of competing solutions (PIC10) Philips today introduced two new members of the LPC900 8-bit microcontr


New version of the ISP-ICP bridge code from Philips available (V1.4)

Started by lpctools in LPC90013 years ago 9 replies

Hi, Philips has released a new version of the ISP-ICP bridge code (V1.4). The ISP-ICP bridge code can be used to program LPC900 devices...

Hi, Philips has released a new version of the ISP-ICP bridge code (V1.4). The ISP-ICP bridge code can be used to program LPC900 devices using FlashMagic from ESAcademy, the MCB900 evaluation board from Keil plus the PAB9xx programming adapter boards. The new version of the code can be downloaded here:


Interface for ICP using FLASH MAGIC

Started by warren_smithers in LPC90013 years ago 1 reply

I need a circuit diagram for the interface between computer and LPC to be programmed. Is there anything available that is already ...

I need a circuit diagram for the interface between computer and LPC to be programmed. Is there anything available that is already constructed? Thanks


LPC932 in PLCC/TSSOP

Started by Hitesh Mahant in LPC90013 years ago 2 replies

Hi all, As I wrote before, I am using a self-made programmer. Due to an error on PCB-assembly, I applied 5V to VDD of PLCs I tried to...

Hi all, As I wrote before, I am using a self-made programmer. Due to an error on PCB-assembly, I applied 5V to VDD of PLCs I tried to program a mix of PLCC & TSSOP chips. None got programmed. Then I could guess what's going on. I corrected my programmer fault. Retried to program those chips. TSSOP chips are still no getting programmed, wh


Application Hint LPC935 ADC with Zero interrupt load

Started by philips_apps in LPC90013 years ago

Hi, there is a great feature in the LPC935 ADC which could change the way you do analog to digital conversions. Every input (channel)...

Hi, there is a great feature in the LPC935 ADC which could change the way you do analog to digital conversions. Every input (channel) has a dedicated result register. Also the ADC offers a scan mode, you select which channel are to be converted, start the ADC and all the selected channels are converted. To make this feature even more powerful, there


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