hi, my first project on uvision but im having trouble making it work. so I'm making a simple POV toy (leds flash and moving it side to side you see a message) using a Atmel AT89S52 microcontroller, with 8 leds connected to its port 2.
i know my programmer and board is working because i made a simple program to toggle leds in port 2 and it work fine.
programmer i using is based on this: http://ikalogic.com/isp.php
im using the latest version of the software and I added leds on it to see if programs work.
;**************SPACE SUBROUTINE**************************** SPACE: MOV P2, #0FFH ;OUTPUT A SPACE ACALL DELAY ;CALL A DELAY BEFORE NEXT ONE RET ;*******************DELAY SUBROUTINE******************* DELAY: MOV R4, #0FFh NEXT: MOV R5, #0FFh AGAIN: DJNZ R5, AGAIN DJNZ R4, NEXT RET ;*********************MESSEGE TO BE SENT OUT********************* ;ONLY CHANGE WHAT IS INSIDE OF THE "", THE 0 IS TO SIGNIFY THE END. MESSEGE: DB "HELLO", 0 ACHAR: DB 11100000B , 10010111B , 01110111B , 10010111B , 11100000B , 01010101B BCHAR: DB 00000000B , 01101110B , 01101110B , 01101110B , 10010001B , 01010101B CCHAR: DB 11000011B , 10111101B , 01111110B , 01111110B , 10111101B , 01010101B DCHAR: DB 00000000B , 01111110B , 01111110B , 10111101B , 11000011B , 01010101B ECHAR: DB 00000000B , 01101110B , 01101110B , 01101110B , 01101110B , 01010101B FCHAR: DB 00000000B , 01101111B , 01101111B , 01101111B , 01101111B , 01010101B GCHAR: DB 10000001B , 01111110B , 01110110B , 01110001B , 10110111B , 01010101B HCHAR: DB 00000000B , 11101111B , 11101111B , 11101111B , 00000000B , 01010101B ICHAR: DB 01111110B , 01111110B , 00000000B , 01111110B , 01111110B , 01010101B JCHAR: DB 01111101B , 01111110B , 00000001B , 01111111B , 01111111B , 01010101B KCHAR: DB 00000000B , 11100111B , 11011011B , 10111101B , 01111110B , 01010101B LCHAR: DB 00000000B , 11111110B , 11111110B , 11111110B , 11111110B , 01010101B MCHAR: DB 00000000B , 10111111B , 11011111B , 10111111B , 00000000B , 01010101B NCHAR: DB 00000000B , 10011111B , 11101111B , 11110011B , 00000000B , 01010101B OCHAR: DB 00000000B , 01111110B , 01111110B , 01111110B , 00000000B , 01010101B PCHAR: DB 00000000B , 01101111B , 01101111B , 01101111B , 00001111B , 01010101B QCHAR: DB 11000011B , 10111100B , 01111010B , 10111101B , 10000010B , 01010101B RCHAR: DB 00000000B , 01100111B , 01101011B , 10101011B , 11011100B , 01010101B SCHAR: DB 10010011B , 01101110B , 01101110B , 01101101B , 10110011B , 01010101B TCHAR: DB 01111111B , 01111111B , 00000000B , 01111111B , 01111111B , 01010101B UCHAR: DB 00000001B , 11111110B , 11111110B , 11111110B , 00000001B , 01010101B VCHAR: DB 00001111B , 00001100B , 11111100B , 11110011B , 00001111B , 01010101B WCHAR: DB 00000001B , 11111100B , 11111011B , 11111100B , 00000001B , 01010101B XCHAR: DB 00011000B , 11100111B , 11111111B , 11100111B , 11100111B , 01010101B YCHAR: DB 01111111B , 10111111B , 11000000B , 10111111B , 01111111B , 01010101B ZCHAR: DB 01111110B , 01111000B , 01100110B , 00011110B , 01111110B , 01010101B END
so im using c51 to output a hex file and the programmer software to flash the chip, but after i flashed it no leds light up it just does nothing.
i made a project and i tried it with and without a start-up code. is there something i have to do with the start up code? it just copied it in the folder and i left it there.
anyway, can any one help me? im soo confused i got no errors or warnings on my code and it works in the simulation but when i flash it, nothing happens.