i am confused.
my question is, --> is any bootloader file required to be burned into the Atmel 89s52 chip before it can be used as the serial programmable ..?
if its required,
1> please send me that bootloader file in "c" (asm will also do) if some one have it.
2> any schematics available, also well come.
plz help friends. i am trying to make a trainer kit.
rony.
no reason to be confused, it's very clear from the manual: No bootloader needed,
only an operational clock source either crystal or external and the ISP interface as documented.
unlike newer processors (PIC, ATmega), 89S52 has no option for flash self-programming, thus no bootloader and UART download is possible. Only serial (ISP) or parallel programming. There are many ISP programmer options, personally I know free Ponyprog software (http://www.LancOS.com). It can work with a simple selfmade adapter from printer or serial port, schematic is documented with the software. Other solutions are most likely present at EDAboard.com if you search it.