7 Threads found on edaboard.com: 8051 Idle
I Need help, I have connected IR module with P89v51RD2. I have written C code I am just testing that IR sensor is working or not
MCU : P89v51RD2
compiler : Keil
If output of IR sensor is high turn ON LED
If output of IR sensor is low turn OFF LED
Pin 1 is the output connected with P0.0
Pin 2 is ground
Microcontrollers :: 10-10-2015 23:53 :: vead :: Replies: 3 :: Views: 334
-> I want to interface serial communication between 89s52 and hyper terminal..
-> I have made circuit like this...
-> I am making P3_2 pin high before sending frame and after sent making it low.
-> Is this right procedure? if not then tell me the right procedure for communication to computer.
-> Please help me t
Microcontrollers :: 12-27-2012 05:31 :: Briez :: Replies: 1 :: Views: 627
I want my 8051 to go to idle mode but i don't know what are the advantages over power down mode,
Can you please show me the advantage ( and actual meaning of it! though i went through the datasheet i still cannot get the whole figure) and how to implement it?
I am using KEIL C
Microcontrollers :: 09-12-2011 11:03 :: ucsam :: Replies: 9 :: Views: 7049
I have an RTC chip (DS12887) that periodically asserts the IRQ line which is connected to the INT0 line of my AT89S52.
I have seen that if my micro is in idle mode, the ISR for INT0 gets called periodically, without any intervention.
However, if my micro is in power down mode, the ISR does not get called. In power down mode the only wa
Hobby Circuits and Small Projects Problems :: 03-25-2008 16:37 :: seemanta :: Replies: 17 :: Views: 4240
Based on the advice in my earlier post to create a battery powered AT89S52 based device, I have added some code for idle mode into my digital clock.
Unfortunately, after the micro goes to idle and it receives an interrupt from the RTC, it does not 'wake up'.
So I created a test program which handles the INT1 interrupt and displays a sing
Hobby Circuits and Small Projects Problems :: 02-29-2008 16:35 :: seemanta :: Replies: 2 :: Views: 3881
how can we calculate the life of the battery connected to the 8051 system
if we connect an 89c51 which consumes 20 mA at 12 mhz clk,to a 3v 1000mAh
battery,how many days will the system work?
we know we can increase the battery life using the idle mode.can anyone provide how to do the same?. is there any other ways to increase the ba
Microcontrollers :: 02-15-2008 09:41 :: microlab :: Replies: 1 :: Views: 918
i need everything about 8051's power down mode and idle mode in detail.
Microcontrollers :: 08-10-2007 11:46 :: hemant2007 :: Replies: 1 :: Views: 1991