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66 Threads found on edaboard.com: Solution 8051
The usual solution is to use inverted logic (active low) for 8051 outputs.
I presume Intouch has a driver for serial devices with user specific protocols, but the best solution in terms of automation standards would be to implement serial MODBUS protocol in your 8051 device. See for the full specification.
You didn't yet mention 8051. It has open drain outputs with weak pull-ups instead of regular push-pull outputs. As a simple solution, you can place strong (e.g. 1k) pull-ups. If you also want safe reset behaviour, an inverting driver (like 74HC04) between 8051 and MOSFET is suggested.
Look this link, very good choice for start... if you need complete solution regards
I suggest, you try for yourself first. Then post your code here in the forum. Others can the help you towards a solution. The forum is not meant to do the work for you
hi, sir i want to interface stepper motor with 8051 microcontroller... at present i dont have the idea of building up the driver circuit of stepper motor which can hold the torque of 5kg,,, plz suggest me to build driver circuit. i want to control this stepper motor with zigbee controller... both should work on 8051 platform.. plz suggest me the co
Hi, My 8051 programmer is giving "CHIP ENABLE PROGRAM ERROR". Hence, I cannot read,write or erase the chip, AT89S52. Do any body know the solution for this problem.
there are lot of solution available what is your budget
I searched but could not find the solution for PIC32. Actually the pseudocode/flow is ok, I have done this in c but on 8051. PIC is new to me and that too PIC32, I need some demo code to try and build my confidance.
CC110L is a second generation transceiver, a companion of CC1101 with slightly reduced functionality. Both are pin compatible. Like first generation CC1000, it has no microcontroller. A SoC version (CC1101 RF part + 8051 processor) is available as CC1120. It may be interesting for a minimum part count sensor solution. But the processor interface of
Use GSM Module (GSM 850/900 1800/1900) with AT command set and RS232 interface on CMOS level. This GSM wireless data module is the ready a solution for remote wireless applications, machine to machine or user to machine and remote data
The only solution is to buy the software or port the code to another free IDE. Alex
For short duration power failure, a battery backup is the easiest solution, capabilities of microcontroller allow sizable durations.
hi, please help me to find the solution for displaying 2 lines of 2*16 lcd at a time.(embedded c code) Aim: move a string towards right direction in first line,and at the same time move another string towards left direction in second line. ###### this much i tryied###### #include sbit KEY1=P0^0; sbit KEY2=P0^1;
you have circuit diagram and code for 8051, AVR and PIC in the forum. if you search you will get complete solution.
I am using Atmel 89S51 microcontroller. The applicaion has to save some 800 bytes (say 1KB) of data during operation. What is the easiest way to save this data. I prefer working in assembly. A non volatile memory solution will also work but I am not acquainted with NVRAM / EEPROM read write process and usage. Any suggestion about memory compon
As the most simple solution, you can connect 8 I/O pins of your ?P, presuming it has fully controllable pins, not like the "poor-mans" output pins of a 8051. I don't understand why you are considering about "inverting" feature of the tri-state drivers? As far as you reported, you want to be able to set the output to L, H, and Z, which is actually p
the AT89c52 does not have the hardware pwm, spi & i2c. i recommend to use the similar version of AT89c51AC2 which has an inbuilt PWM. the solution is to implement software PWM, spi & i2c 8051 PWM example implementation I2c and SPI tutorial
in 8051 , mode1 overflows at the rate of 65536*internal timer clock. though , 22mhz clock , it may start in comaptibility mode of maxm 12mhz. another thing , if you are very particular about timing issues , only solution is assembly level programming and not c. you can make use of inline asm.
The easy way is to use delay(s), more advanced (and more accurate) solution will involve timers and interrupts .. So, just to give you something to start with, here is an example of the first approach: ? CLR P1.X ; X is your output pin ? MOV B, #0FFh DJNZ B, $ ; 256 cycles delay, time will depend on your clock .. ; this ca
hi iam sathish, iam doing a project on 8051 1 want to aquire the data serially and save the data on an excel sheet pls help in getting an solution thank u
One possible solution (attached, from a Proteus example):
mazidi itself is a solution by itself.....if you read it properly....i dont think there is a solution guide for a guide itself........
Hi... I would suggest you to read a TWI/I2C tutorial... There you could find some solution & you would get some additional information as well... Disecting & rectifying own code will improve ur knowledge further... Here is 1 tutorial for TWI/I2C I2C / TWI tutorial: Index : 8051 Microcontrolle
my problem get reverse the led connection As expectable. You would have used this solution from the start, if reading the 8051 datasheet thoroughly.
do a search in the forum before you post any thread... these have been addressed and solutions provided from many years.......
74HCT family logic gates (with 5V supply) are a simple solution for 3.3V to 5V level conversion. Hopefully some types are available at your site.
dont be generic by telling 8051, as after the solution then you will tell the controller make and part number..... Assuming it is 89c series.. set the timer1 to 8 bit autoreload mode. set the baud rate as 9600 bymake scon as 0x50, start the timer1 putting 0xfd into SCON register. then the values got from ADC is stored in SBUF and then whi
hi please try the solution i mentioned, it will be solved ml
Maybe you have to think abou microcontroled solution, because most microcontrollers have built-in needed modules ( A/D , PWM, etc... ) First step is define the platform ( PIC, 8051, etc... ) +++
hi, i need solution Manual of The 8051 Microcontrollers by mazidi 2nd edition.
I don't know which version of the 8051 you are using but the original Intel version was rubbish at sourcing current: 80uA with 2.4V output. The ULN2003 would want nearly 400uA at 2.4V so my guess is that poor old micro cannot drive enough current out of the output pins. One solution would be to put a pullup resistor from the micro output pins to
Yes, it's a straightforward solution considering the limited hardware capabilities of the basic 8051. Assuming IO_GET evaluates to a simple bit addressing macro, it achieves a timing uncertainty of 2x2 cycles (= 4 ?s for a standard 12 MHz clocked 8051), which seems acceptable to measure 1 ms. Without external gating hardware, a (...)
Interface 7 Segment, LED, LCD, SD Card, CAN, SPI, I2C, UART, Keypad to demonstrate some solution to problems ~~
A small FPGA with built-in configuration memory can be used as single-chip solution (excluding clock source and power supply). But the costs will be considerably higher than for simple uC in any case.
Ajishgopair has the solution, below is example driver. #include #include "delay.h" sbit LCD_RS =P1^0; // Register select sbit LCD_E =P1^1; // Enable #define LCD_STROBE ((LCD_E = 1),(LCD_E=0)) // Time in Milliseconds void DelayMs(unsigned char cnt) { cnt=2*cnt; do {DelayUs(500);} while(--cnt != 0); }
Hi, As a part of my project I need to send a field data (Ex: pressure) to control room which is almost 1KM away. I feel I can go for wireless solution. And I do googling find out CC1110 a RF transceiver with 8051. But I have few questions whether using this chip can I transmit data to >1KM. Please provide your comment and guide me to select a rig
el.naderi Connecting two 8051 is extremely easy, it needs tow max 232 IC's at both the ends. If you have specific problem, may be I will be able to suggest a viable solution. Raoof
most simple solution is go and buy a good RS232 to USB converter and this will create virtual COM rest as u want
Hello everyone, I have participated in a project. We need to send the data from 32-channels to PC using ethernet interface. Now I am seeking for the best solution to implement the interface. I have been searching for two days for the MCUs which have ethernet capability and found some useful ones. One of them are AX11XX series SoC (System-on-chip
Hello, Please have a look at the below link.. In the case of smoke detector, the design of casing and placing of the sensors inside the chamber will be complicated than the electronic circuitry for a better performance.
I think the compiler is the best solution.. KEIL or BS TASKING are very good :-P
Hi, I am interfacing microcontroller with GPRS modem. can i use Sony Ericsson phone instead gprs modem ? something like connecting pc to gprs via Sony Ericsson pc suite , Please help me finding out the solution
Hi, In my system, I need to perform a soft reset for a particular condition from within an interrupt handler. I have multiple interrupt handlers so I have no idea up to how many levels all the interrupt handlers have been nested. However, at all costs, I need to perform the soft reset and restart my system as if it has been just powered up.
Let see your schematic, let us see your program, and by that, we can give you solution. What programmer language did you use? Asm, C? What C? Codevision, winAVR, or... LCD is an easy basic uC course, its the hello world course (the first of first microcontroller course). Anyway, where do you come from?
hi , to all can any body help me how do i interface 8051 to gsm modem and which modem is best and cheaper solution
Easiest solution ever. Use MAX232 from , download the datasheet for h/w connection. Use Timer0 or Timer1 as a baudrate generator (You can find here a good 8051 baudrate calculator ) and start talking to your uC serially. Hope that helps.
CY7C68013 from Cypress is a good solution for USB interface. It has 8051 uC built in whic makes it easy to control any external devices like relay in your case.
There are several options of connecting more than one device to a 8051-derivative via serial port .. First option is purely software solution and creation second UART in software .. Here is one example of software UART: Second option is a hardware soulution: if
thanks i found the solution