Using a P89LPC932, 3, 4, or 5, when Timer 1 overflow (Timer 1 in Mode 2) is used as the source for I2C SCL (CRSEL = 1), TH1 determines I2C SCL rate. I have...
Hello, I am starting a small project on LPC932. There seems to be quite a few toolchain options out there: Keil Rigel Raisonance IAR SDCC (open-source) Which...
Hi, there are two options from Keil. A free 4k version called LPC-Studio and a low cost 16k version for NXP LPC900 only. This version can be found here:...
I noticed that the User manual (UM10116.pdf Rev. 02 — 9 June 2005) states that the IAP functions return an error when the Carry Flag is set. But the ISP boot...
Dear John, I had a look at the LPC2_ISP_8K_V04.a51, and it is the F0 flag in PSW. You are right that the IAP function returns error when the Carry Flag is set,...
I don't believe that F0 is the PSW flag bit since I can't find a definition (like: F0 EQU D0) in the file. This would mean the assembler would interpret it as...
Dear John, FO bit is PSW only. You can also look at header(.h) file or include(.inc) file In LPC9xx.h ---> sbit F0 = PSW^5; In LPC9xx.INC ---> F0 BIT...
I did not include either of those header files. In fact, the 'LPC2_ISP_8K_V04.a51' compiles without adding any other files to the project. I compiled...
Ok let me know which crosss compiler are you using ? If you are using Keil then by default SFR definition is of 8051 standard SFR definition. Nilesh john...
OK, I see what you guys mean. The uVision IDE try's to be too smart for it's own good and adds the definitions (somewhere?) for the standard 8051 by default....
Hi, just found this one on Digikey. http://www.teamfdi.com/products/downloads/support/brochures/LCD%20Demo% 20Brochure%20Rev1.pdf It is a demokit for LPC900 +...
Hi, I'm using a P89LPC936 with a 12MHz crystal (SMD case HC49/4H) The uC doesn't always start. It seems that oscillation level is too small (0.5V to 1.6V with...
Hi, i have a problem with the output ports of the LPC930. I try to switch a FET by toggling a port pin. Works just fine, but if I set the output = LOW in the...
denverone@...
Aug 3, 2007 1:41 pm
445
You must set it high during initialization as this overrides toggeling (I'm assuming that you are open drain or weak pull-up mode) John W. Poore, Principal...
At another pin I have a LED and there it is working, even if I set the pin LOW during the initialization....
denverone@...
Aug 6, 2007 6:40 am
447
Hi -- I just joined this group and am looking for some feedback. A) To program (write programs for) the LPC9XX which compiler do you find better 1) SDCC or 2)...
I used both, and I can say that depends on your knoledge an target: if you want to hava a free tool, you have to choose SDCC and will have also a lot of ather...
Hi! The LPC935 has two DAC outputs. I thought it would be nice to use those DACs in a new design. I've done some testing with DAC and it works... well, in some...
. . . ... . . . Hi! Thanks for your reply! It was a configuration problem. The digital output driver was still active. I wrote to the wrong register :-( It's...
... I reply myself: ID2 = 7AH sometimes reading the manual helps... ;-) ... I reply myself here, too: 1K sectors. The ISP protocol has commands for 16 sectors...
For LPC954, the MFGID = 15H, ID1 = DDH and ID2 = 7AH. And sector size for LPC954 is 1K. Good Luck. Finn To: lpc900_users@yahoogroups.com From: faumarz@... ...
Dear sir, I want to join lpc_900 group.presently i am working on lpc924 controller. I am facing problem during ISP programming.first time when i give supply...
i am facing problem in ISP programing in lpc924 controller.First time when i gave supply to controller in flash magic then it was automatic detact the...
Dear Chetan, First time you able to program becuase of Factory defualt ISP. At that time BSB bit is set from Factory. Once you program the Microcontroller...
Thanks Nilesh for giving me very useful information. But in hardware activation method what type of haraware addition is required.please give me schematic of...
