Multiple 8051 chip detection

Started by mik3ca 2 months ago1 replylatest reply 2 months ago38 views
So far I have made software for the same hardware that can detect whether an AT89S52 or an AT89LP52 is inserted into it because the introductory bytes required to...

Sensing beams in strict timeframes - 8051

Started by mik3ca 2 months ago25 views
I currently made a board in which a 4-sensor unit is multiplexed into one output connected to P3.0 of an AT89C4051 microcontroller. The sensor is selected via P3.4...

Fastest way to increment a 4-bit value in a register - 8051

Started by mik3ca 2 months ago3 replieslatest reply 2 months ago36 views
I own multiple AT89C4051's, its a basic 8051 with flash rom and 128 bytes of ram of which most is used by other resources. I have just enough free to store 40 bytes...

Is an additional 8051 microcontroller necessary?

Started by mik3ca 2 months ago2 replieslatest reply 2 months ago25 views
I ran into an interesting situation as I'm developing my large system.As it stands now, the server continuously addresses each client with 11 bytes of data, mostly...

Handling low-speed devices with high speed microcontroller

Started by mik3ca 2 months ago15 replieslatest reply 2 months ago64 views
Currently I own a few AT89S52's and AT89LP52's and I run them with 22.1184Mhz crystals.The difference between the two is that the AT89LP52 processes code 10x faster,...

16-bit number to LCD digits

Started by mik3ca 2 months ago6 replieslatest reply 2 months ago68 views
I'm trying to figure out the fastest way to convert a 16-bit number to 4 digits for an LCD display. I did adopt the use of the fast 16-bit division on another thread...

Arranging data packet between micros for optimal speed

Started by mik3ca 2 months ago5 replieslatest reply 2 months ago47 views
Ok, I managed to get the microcontrollers (AT89LP52 and AT89S52) to execute code, but now I need a way to optimize my data flow. I have one controller setup as...

Following atmels AT89LP52's instructions to make the chip work is like....

Started by mik3ca 2 months ago12 replieslatest reply 2 months ago54 views
...almost winning the lottery. Ok. So I used the AT89S52 numerous times on my target board as well as in my programmer and things are successful. So now I choose...

AT89S52 signature detected but AT89LP52 fails

Started by mik3ca 2 months ago1 replylatest reply 2 months ago16 views
This week my local supplier ordered some AT89LP52's for me and I bought them today and they all arrived in a plastic anti-static package which makes me think they...

RB8 bit in serial mode 1 of 8051

Started by mik3ca 3 months ago2 replieslatest reply 2 months ago43 views
I primarily refer to the following source for the 8051 programming information: http://8052mcu.com/ But it says nothing about the operation of the RB8 bit in serial...

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