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Does anyone have any leads or information regarding the upgrade of the older Fluke Combiscopes with the Math+ option? Was this option a hardware upgrade (adding a separate I/O board, etc.) or was it merely a unlock or firmware upgrade?
The Math+ (also called Math Plus) in the manual provides...
Re: How to Reset 8051 Interrupt by NOT Using RETI Instructio
Anyone? Bueller? Bueller? :?:
Here is a code synopsis of what I'm trying to do:
(assume interrupts are enabled, the stack pointer is set @ 25h)
org 0013h
nop
ljmp EX1_Receive
org 0100h
main:
nop
nop
nop
sjmp main...
Re:How to Reset 8051 Interrupt by NOT Using RETI Instruction
This is what I need to do. However, I will ask a dumb question. How is this done? :D Do I need to go through a whole PUSH/POP sequence? Initially at startup, the SP was set above the register/bit area (value of 1Bh moved onto...
For an 8051 microcontroller, is this possible?
My code uses the external interrupt 0 to branch out a main program and go into a lengthy subroutine, then again branching out into an appopriate sub-main program based on values in the accumulator. At this point, the micro is where it should be...
Can you please elaborate on why a digital scope is not good for analog troubleshooting? Is it because a digital scope is too slow and cannot display spikes and noise properly? Is it because the inputs are too noisy in general?
As an EET undergraduate, I used a Philips/Flukeview digital scope...
I am looking at possibly buying a budget-minded DSO for limited digital and analog troubleshooting and design. I don't need speeds greater than 25MHz, so both of these would be ideal.
However, are these complete trash or are they OK for the price? It seems that Atten and Instek models are...
When programming a universal remote, does it transmit the various and different protocols for each manufacturer or will it just transmit different code information?
For example, if I program the universal remote for Sony, it would transmit datain the SIRC protocol. If I programmed the remote...
Re: ac or dc
What the previous guy was saying is to use a digital multimeter to test if either a DC or AC voltage is present. That would be the safest way, especially if you don't know the voltage at the output. Connecting two reverse LEDs may work, but you risk either burning them out in a...
Re: Frustrated: 8051 Timer Problem Has Got Me Scratchin' My
You're right! I know what's happening now...the 16-bit timer was always rolling over back to 00h/00h for TH0/TL0, thus always making the delay about 50ms!
Thanks for the kick in the pants!
First and foremost, I would like to introduce myself to the forums. This is my first post! I mainly signed up for information and help on the older 8051 micros and learning new info on the AVR micros, which seem to be the most popular choice of quality uC's today. I've been messing with the...
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