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hello!
sir,
sequential random read is not done .
but sir i am doing everything according to the i2c bus frame like page write in 3 memory location then sequential random read but still it is not working.
when i am read the value only it is show in (2 * 16 lcd )the first location value and...
Hello sir,
byte write and random read both are done . problem is in byte write acknowledge but now it is rectify.
- - - Updated - - -
sir,
1. In sequential random read when data out is done . A acknowledge send from master to slave in this acknowledge sda is low and what is the clock signal...
sir,
this my random read code
here i am not display read value but give led indication.
SCL BIT P3.6
SDA BIT P3.7
RS BIT P0.1
EN BIT P0.0
LED BIT P0.4
ORG 00H
MOV R0,#30H
; ACALL LCD
ACALL DELAY...
Hello sir!
According your second point i am using led indication in every step.
in write operation when accumulator value move to carry at that time i am using led indication so that i know which value in store in which location.
example- RLC A ;accumulator value move...
Hi,
1. at89s52 micro-controller read value [random read] from 24c16 eeprom.
2. Microcontroller is done write [byte write] operation
3. Microcontroller read always even number value .
4. Example - eeprom store 31 value in 00 memory location .when microcontroller read value and display in...
IN RANDOM READ
THE I2C FRAME WHEN MICROCONTROLLER SEND NOACK THEN STOP THE FRAME
IN BETWEEN NOACK AND STOP FRAME A SINGLE BIT IS READ .SO THAT ALWAYS READ EVEN NUMBER
WHAT CAN I DO SO THAT AFTER NOACK FRAME IS STOP ? :bang:
1. In hardware reset -when press the reset button at that time the watchdog timer value is overflow but
2. In software when the watch dog timer value is overflow according to program execution in that time reset is done.
how to configuration xbee (s2) in x-ctu software and
2.how to update firmware in xbee [except dtr and rts pin not connected vcc tx,rx,gnd are connected in max 232]
1. AT89S52 FREQUENCY IS 11.0592Mhz.
2. FIRST YOU ENABLE THE HARDWARE INTERRUPT [MOV IE,#1000010B]
3. THEN CLEAR THE PORT 3 BECAUSE LED IS CONNECT INTERRUPT PIN IS P3.2 AND P3.3 [MOV P3,#00H]
N:B-WHEN MICROCONTROLLER IS START ALL THE PIN IS FFH SO WE CLEAR THE PIN WHERE LED IS CONNECT...
first send AT+CMGF=1 PRESS ENTER(0DH)
THEN TYPE AT+CMGS="+9800220107" PRESS ENTER (0DH) YOU SHOULD BE GIVE + SYMBOL BEFORE 10 DIGIT MOBILE NUMBER
THEN WRITE SMS
THEN PRESS <CTRL+Z>
for industrial demand automation is required but in working automation sector we need healthy knowledge in embedded system ,because automation start from embedded .
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