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8051 Lookup Table

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13 Threads found on 8051 Lookup Table
Hello. I need to use several lookup tables(DATA,DATA1..) in one program and it should change after some time(like 1s). Is it possible to do it in assembler language with 8051 microcontroler? MAIN: MOV DPTR,#DATA CLR A MOVC A,@A+DPTR MOV R2,A INC DPTR ... ... DATA: DB 36D DB 1D,254D ; DB 22D,233D ...
I want to design a digital signal generator which can generate digital values for the Sine wave using 8051 and then convert it to analog sine wave using DAC0808. But how to compute values for a function x = sin(w n) using 8051 if i want 50 samples per cycle and 100 Hertz frequency of sine wave. I don't want to use lookup (...)
can 8051 microcontroller read in text file like notepad? If can what should I do? I am using C programming language for microcontroller 8051
u can calculate it, i guess ur using 8-bit adc with Vref+ as 5v and Vref- as 0v so the step size is approx 20mv, use two ram location say voltage_msb and voltage_lsb, where the voltage is stored in milli volts in BCD format. decrement the adc reading by 1 and add 20 to it keep repeating this loop till the adc reading becomes 0. This method is m
Here is another example with code and brief explenations: Regards, IanP
I am interfacing LCD module with 8051.When I am executing the program, the data I am sending is just visible in the LCD Module and immediately everything turns complete black.When I am switching the power off the data just visibles again in the LCd for a moment and then everythings go to blank.Can anybody help me in curing my headache. My prog
Instead of using c use assembly language For more detail contact on the following link - 30k -
Dear all, CRC calculation is required to append CRC check with below string to communicate at RS485 Link having modbus protocol. For ex: String is 01H 03H 75H 30H 00H 12H. Actualy i am in need to know the CRC calculation procedure to incorporate the same in 8051 coding (Assembly Language). I have read many data on net but couldn't get
Here is link describing the implementation of lookup tables in 8051 Assembly: How are lookup tables implemented in 8052 assembler? BigDog
I believe Andre is referring to the generation of a lookup table of sine wave values to drive your DAC. A table or array of the values of a sine wave is generated with a fixed time interval between sample points. A timer and the associated interrupt service routine (ISR) can be utilized to fetch the values of the sine wave in sequential (...)
hello, i am using 16X2 LCD with 8051 micro controller. in my c programing i declared a variable(say char a) in which the value 0xAE is stored manually(e.g. a=0xAE;) now when i want to show this value on LCD but when i send on LCD the variable name on lcd data (lcd_data(a);) then it send tha ascii value of variable a rather i want to displ
I Hope the below link will mates your requirements 128x64 graphic LCD routines and tools for KS0108 and HD61202