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iam a beginner in c programming , when i type this simple code on keil i found about 15 errors .
here is my code and also here is a list with the types of errors.
void delay(unsigned int)
i have connected my gsm modem with computer using hyper-terminal but here is a problem on windows xp the hyper-terminal when i opened the window when i try to write any command there is no letters wrote on screen..
i.e; if i try to write any thing the screen is white always , so i try another xp...
hi , sorry for my English
i have connected my project (8051 interface with keypad), the keypad output is in decimal,
so by example (if i write 800 using keypad)i want to take this number and then subtract this number from (65535) and then load the counter (TH0 , TL0) with the output result from...
hi, sorry for my English
i want a circuit implementation for a pnp phototransistor
note:i am a beginner in this field so i need all components , i prefer a circuit schematic for this circuit.
please help me in short time.
hi,,,,,,,,,,,,,sorry for my English.
i have a big problem i have build up my project (connect the 89s52 with ds1307) but am facing a big problem , and i am sure of firmware but there is a problem in hardware and i can't determine it , i see a strange thing when i connect the battery i found...
hi,.....sorry for my English
i have build up my own project but there is a problem, always when i power up my circuit the controller doesn't work from the first time it needs a reset button and it hang up more times i don't know why it's hang up i change the controller with another but the...
hello, sorry for my English
i have an ac single phase motor and it turns cw and i want to change it's rotation to rotate ccw all the time ,
so if there is a way to change it's rotation.
please answer me in short time.
hi, sorry for my English
i want to control in DC 5 volt motor so i connected it with tip122 and a micro controller to set the base of transistor to became a switch , but the motors doesn't work here is my circuit i want to know if i connect the tip in right way or in wrong way , please help my...
hi,sorry for my English
i want to interface gsm modem with 8051 using serial communication , but first i want to know if (GPRS/GSM-Modem
SINAUT MD720-3) must connect first to rs232 circuit or it has already inside it a rs232 circuit because on websites i read that not all modems needs to rs232...
hi, i have build my own program (interfacing 8051 with ds1307) but i want to do this steps:
lets say that the day now is 21/5/2011 so i want from ds1307 to get the micro controller a pulse output from rtc after 3 days
i.e: at day 24 i want to get pulse from rtc how can i do it using square...
first sorry for my English language.
from start, i was making a balance robot circuit using 555 ic , and we all know that it's available on a lot of websites but this circuit need a servo motor
(3 terminals), but i can't find this motor so i decided to build this circuit and design it again...
hi , sorry for my English.....
i have already build my own firmware for interfacing serial eeprom with 8051 but am facing i problem and i can't know it , i made the HEX file but on simulation if i store (ex:#05h) the out put then after storing this reading inside the eeprom and read it again...
Can I construct the 89SXX ISP Programmer using USB to Serial converter cable and program the uC using the USB port?
i know that the FT232RL chip already exist inside the serial converter cable to usb but i need the schematic diagram for this circuit .
first sorry for my English language ,,,,,,,
i have already connect my circuit which consists of (LCD,8051,25C040)
and i get the code from a web site but i can't understand all of subroutines such as(out_com , ackpol ) please i need help yo understand this code and this is the code ...
i made a 89 series programmer for sunrom , but i face a problem ,
the (proload ) read the programmer but it didn't erasing , i want to know what is the problem i gussied that the problem in the zinner (5.6 , 12 v) but please i wanna to know what is the voltage in the nomial case befrore erasing...