can any one tell me the way to burn at89s52 micro controller with the help of a proload software. the hardware model number of the programmer that i am using is 1001 3456.
I have tried to interface LCD JHD 162A to 89S52. but nothing is being displayed on LCD. only square boxes are being displayed on the 2nd row of LCD. when i checked the programmer, it is showing that 153 bytes are written. actually my hex file is 449 bytes long. so, i thought that there must be something wrong with the programmer.
org 000
mov p1,#00h
mov p2,#00h
mov a,#38h
acall cmdwrite
mov a,#0fh
acall cmdwrite
mov a,#01h
acall cmdwrite
mov a,#06h
acall cmdwrite
mov a,#80h
acall cmdwrite
mov A,#'R'
acall datawrite
mov a,#'a'
acall datawrite
mov a,#'j'
acall datawrite
mov a,'e'
acall datawrite
sjmp last
i have connected the LCD data port to the port 1. en to p2.1,Rs to p2.2,R/W to p2.3. i have connecetd crystal to 18 and 19 pins of 89s52 with capacitors. finally Vcc to 5 volts and Gnd to ground.
i have connected the LCD data port to the port 1. en to p2.1,Rs to p2.2,R/W to p2.3. i have connecetd crystal to 18 and 19 pins of 89s52 with capacitors. finally Vcc to 5 volts and Gnd to ground. Is there any other pins to be cnnected?
Pin 9 needs to be grounded with 10K resistor and 10Mfd to Vcc which forms the reset circuit. Mention which crystal is used at pin 18 and 19? Usually 12 Mhz will work ok for most of the programs. The pin 40 and 31 need connected to Vcc 5V+ and 20 pin to Gnd.
As your chip is 89S52, the **broken link removed** which is a USB programmer, may be used to program the hex file.
Cheers
Pin 9 needs to be grounded with 10K resistor and 10Mfd to Vcc which forms the reset circuit. Mention which crystal is used at pin 18 and 19? Usually 12 Mhz will work ok for most of the programs. The pin 40 and 31 need connected to Vcc 5V+ and 20 pin to Gnd.
As your chip is 89S52, the **broken link removed** which is a USB programmer, may be used to program the hex file.
Cheers
Yes..the reset circuit is mandatory to reset the microcontroller at every powerup. May work without the 31 pin connected. But it is required as per the datasheet.
Cheers