Writing UCFG1 with IAP routines?

Started by markvanelst in LPC90016 years ago 2 replies

Hello, I am writing a bootloader for the P89LPC922. I use IAP lite to write to the program memory and this works fine. I want to...

Hello, I am writing a bootloader for the P89LPC922. I use IAP lite to write to the program memory and this works fine. I want to reprogram UCFG1 (RPE) before updating the firmware to prevent unwanted reset requests during updating. How can I program UCFG1 with IAP? I tried the IAP sources on www.esacademy.com, but they don't seem to work :(


UART/PWM output with open drain?

Started by markvanelst in LPC90016 years ago 2 replies

Hello, I want to use the PWM to dim a LED. This led is connected with a 470 Ohm resistor to 5VDC. The controller is running on 3VDC. I...

Hello, I want to use the PWM to dim a LED. This led is connected with a 470 Ohm resistor to 5VDC. The controller is running on 3VDC. I want to set the output of the PWM (T0) in open drain mode (set P1M1 and P1M2 bit). Somehow this doesn't work. The same problem occurs with bi-directional async communication. I have connected RxD and TxD with each


LadderWORK for 8051 Automation Software

Started by mshadow65 in LPC90016 years ago

Dear Sirs, We want to introduce LadderWORK for 8051 Automation Software LadderWORK allow you to transform a generic 8051 processor...

Dear Sirs, We want to introduce LadderWORK for 8051 Automation Software LadderWORK allow you to transform a generic 8051 processor into a PLC (Programmable Logic Controller) drawing LADDER/RELAY LOGIC diagrams. Download a functional demo software at: < http://www.microshadow.com/l


LPC902 programming

Started by Kashyap Deepak in LPC90016 years ago 2 replies

Hello everyone, I am Deepak here. Though I am not very new to 8051 I have never used LPC's. I intend to use it in an application...

Hello everyone, I am Deepak here. Though I am not very new to 8051 I have never used LPC's. I intend to use it in an application requiring two comparators. I feel LPC 902 will be good for my application ,but I would like to know how different is the programming than traditional 8051 programming also will I need a isp-icp bridge to program it?


LPC900 family ICP and ISP programmer

Started by Fausto Marzoli in LPC90016 years ago

I've developed and made an hardware/software kit that allows to program any Philips LPC900 Family Microcontroller derivate. It's named...

I've developed and made an hardware/software kit that allows to program any Philips LPC900 Family Microcontroller derivate. It's named "LPC900icp" and works both in ICP and ISP modes. The hardware (USB based) is going to be for sale, but the software is for free (GPL) and I think it can be used also with other hardware using the ISP ori


ISP for the LPC935

Started by rodboyce70 in LPC90016 years ago 9 replies

All, I have just written and am using some code to program an LPC935. Would any vody else be interested it works on Linux and...

All, I have just written and am using some code to program an LPC935. Would any vody else be interested it works on Linux and Windows compiles with Mingw on Windows and GCC under Linux. If so I tar it up and post it here? I would be interested in comments and bug fixes if anybody else starts using it. Rod


LPC932-Hangs During Startup

Started by dot2cell in LPC90016 years ago 7 replies

Hi I had a problem during startup. LPC932 Hangs during startup whenever there is a Mains power failure or while switch on the device....

Hi I had a problem during startup. LPC932 Hangs during startup whenever there is a Mains power failure or while switch on the device. This happens 2 out of 10 occations. I am new to this embedded field. I hope I will get support from the group. Thanks for reading my mail. With Best regards. Dot Bala


My ISR_RTC is loosing milliseconds every second

Started by sodele288 in LPC90016 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 LPC90016 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


Version 1.8 ICP specs

Started by Fausto Marzoli in LPC90017 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


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