at89c52 bootloader
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From: Tim Mitchell on 4 Feb 2005 08:15 In article <ctvkf0$gj0$1(a)online.de>, Tilmann Reh <tilmannreh(a)despammed.com> writes >Tim Mitchell schrieb: > >>>I am looking for Atmel89c52 bootloader so that i can do in-system >>>programming. I searched the net, but could not find any site regarding >>>this. Any help will be appreciated. >>> >> You can't in-system program an 89C52. It needs an external parallel >> programmer. > >Its successor, 89S52, has ISP capability (using a few port pins for >SPI). The software is free for download, the cable consists of a >single buffer IC and a few passives. > The request for a boot loader sounded like he was wanting it to program itself. Even the 89S52 can't do that. The AT89C51RD2 can reprogram itself and is pin compatible with 89C52. It has a built in boot loader which allows you to program it directly from a PC serial port. (with a max232 or something) -- Tim Mitchell
From: Tilmann Reh on 4 Feb 2005 12:12
Tim Mitchell schrieb: >>>>I am looking for Atmel89c52 bootloader so that i can do in-system >>>>programming. I searched the net, but could not find any site regarding >>>>this. Any help will be appreciated. >>>> >>> You can't in-system program an 89C52. It needs an external parallel >>> programmer. >> >>Its successor, 89S52, has ISP capability (using a few port pins for >>SPI). The software is free for download, the cable consists of a >>single buffer IC and a few passives. >> > The request for a boot loader sounded like he was wanting it to program > itself. Even the 89S52 can't do that. > > The AT89C51RD2 can reprogram itself and is pin compatible with 89C52. It > has a built in boot loader which allows you to program it directly from > a PC serial port. (with a max232 or something) I know. We are using both types in current products and developments. :-) I simply overlooked the "bootloader" when answering your statement mentioning the need of parallel programming. -- Dipl.-Ing. Tilmann Reh http://www.autometer.de - Elektronik nach Maý |