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at89c52 bootloader

Started by DigitalBug February 4, 2005
Hii all,
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.
Thanks, 
Sharaf

In article <1107501140.945702.172290@z14g2000cwz.googlegroups.com>, 
DigitalBug <sharaf_cool@yahoo.co.in> writes
>Hii all, >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. >Thanks, >Sharaf >
You can't in-system program an 89C52. It needs an external parallel programmer. -- Tim Mitchell
On Fri, 4 Feb 2005 10:01:56 +0000, the renowned Tim Mitchell
<timng@sabretechnology.co.uk> wrote:

>In article <1107501140.945702.172290@z14g2000cwz.googlegroups.com>, >DigitalBug <sharaf_cool@yahoo.co.in> writes >>Hii all, >>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. >>Thanks, >>Sharaf >> >You can't in-system program an 89C52. It needs an external parallel >programmer.
IIRC, Atmel had a schematic showing how it (ISP, not a bootloader) could be done- but it was WAY more trouble than it was worth. Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
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. -- Dipl.-Ing. Tilmann Reh http://www.autometer.de - Elektronik nach Ma&#2013265951;
Tim Mitchell wrote:
> In article <1107501140.945702.172290@z14g2000cwz.googlegroups.com>, > DigitalBug <sharaf_cool@yahoo.co.in> writes > >> Hii all, >> 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. >> Thanks, >> Sharaf >> > You can't in-system program an 89C52. It needs an external parallel > programmer.
But the 89C51RD2 (Atmel or Philips) is ISP and superior to the 89C52 Paul Burke
In article <ctvkf0$gj0$1@online.de>, Tilmann Reh 
<tilmannreh@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
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 Ma&#2013265951;