I see three points to have vectors in RAM: 1) RAM is faster than FLASH (specifically for random access). The MAM cannot help since it does not expect the...
Hi Group OK well In the absence of anything else, I would like to try: Turning the digital voltage on and off and see if that helps to resurrect my LCD Ref...
Hi, I have downloaded LPC2000 flash utility software from NXP, but my device (lpc2468) is not listed in the Device List of the Software utility. I am building...
You could try flash magic? http://www.flashmagictool.com/ Dev. _____ From: lpc2000@yahoogroups.com [mailto:lpc2000@yahoogroups.com] On Behalf Of Ravi Shankar...
I'm trying to make a led blink using interrupts and timers, already did with delay but now I need to be able to control the times. I'm using crossworks in my...
You’re calling your own ISR constantly in your main loop! (which resets interrupts!) Don’t do that. Also, you have to reprogram your timer, once it goes...
In systems that have a secondary boot loader and application co- resident in flash, being able to remap the vectors to RAM is a must. I did a project with a...
Good afternoon Rowley people I hope you continue well As I continue my baptism into all things ARM-7 ish I am getting more and more confused about the...
Hello, do you now how I can use the flash magic tool with commando lines?? Greetings, Michael Von: lpc2000@yahoogroups.com [mailto:lpc2000@yahoogroups.com] Im...
Hi Michael, afaik, such an option exists but it might not be free of charge. Using FM with command lines and in batch programming makes it a production tool. ...
I have a program that is running fine on a LPC2378 without interrupts. I've put a break point at 0x14 (irq vector) and also tried putting it at the first...
John storm@... ... If you are in user mode you cannot switch out in this fashion. Check what mode your startup leaves you in. I can think of no reason...
it leaves startup in system mode = 0x1f i only tried user mode because i was running out of ideas for why i'm not seeing interrupts. ... Check what ... modify...
Hi all, For a project using a LPC2148 I need my FIQ to be as fast as possible. When I look at the FIQ interrupt handler generated by arm-elf-gcc I see that it...
Write your FIQ ISR in assembler! It's short anyway, right? ;-) ~ Paul Claessen From: lpc2000@yahoogroups.com [mailto:lpc2000@yahoogroups.com] On Behalf Of ...
Yes, it is short, this is my FIQ code: void FIQ_Routine (void) __attribute__ ((interrupt("FIQ"), section(".ram"))); void FIQ_Routine(void) { // read data...
Yes, I understood what you were asking, and although I don't know the answer, I doubt very much that you can force the compiler to use different registers. ...
... Hi John The interrupt controller seems correct - all it really needs is the interrupt enable bits set (you are enabling CAN, USB, UART1 and TIMER0). Then...
Sorry but I didnt understand...you saying that I need to remove the while(1) from the main function so the interrupt don't repeat? Only the inicialization is...
Hello All, I have two questions: 1 - What is the LPC21xx Flash programming speed? I am thinking about using the a portion of the interal flash for "mode...
Do we need to monitor the core voltage too? The reference designs that I saw show reset supervisor only on the peripheral voltage. Is there a good application...
... Like Paul said, why are you calling the interrupt handler continually in main()? That just kills the interrupt and lights your LED at half-brightness as...
... Yes, add -ffixed-r0 ... -ffixed-r7 to the CFLAGS for the FIQ code. I tried it with your posted code and it looks good. Though, I'd suggest to go Paul's...
rimster6969, You really do need at least some basic knowledge before you start programming embedded systems. If you don't understand basic concepts like...
Hi Jim, You need to install the LPC2880 CPU support package and the Nohau LPC2800 Board support package. The Nohau board support package supports (some of) the...
