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

Started by mik3ca 1 month ago3 replieslatest reply 1 month ago34 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 1 month ago2 replieslatest reply 1 month ago22 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 1 month ago15 replieslatest reply 1 month ago63 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 1 month ago6 replieslatest reply 1 month ago67 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 1 month ago5 replieslatest reply 1 month 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 1 month ago12 replieslatest reply 1 month ago51 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 1 month ago1 replylatest reply 1 month ago12 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 2 months ago2 replieslatest reply 1 month ago42 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...

Data packet format that transfers at best speed - 8051

Started by mik3ca 2 months ago19 replieslatest reply 1 month ago40 views
After analyzing my own code 500,000 times, I'm starting to learn my serial data format isn't perfect. Currently, my packet is arranged as 11 bytes as follows: Byte...

Why mini-internet system only works when speed is set to slow?

Started by mik3ca 2 months ago10 replieslatest reply 1 month ago48 views
I'm trying to create a system in which one unit acts as a central server to 25 special hardware clients. All devices utilize the same specs that I will explain...

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