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glenjoy
Joined: 01 Jan 2004
Posts: 1028
Helped: 47
Location: Philippines
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 02 Jan 2004 15:50 ds89c420 programmer |
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This is the PCB top view layout, just resize it. I will explain it later or jus post here.
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glenjoy
Joined: 01 Jan 2004
Posts: 1028
Helped: 47
Location: Philippines
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02 Jan 2004 16:08 ds5000 programmer |
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I forgot, this one uses a low drop out regulator LM1084, MAX233 RS232 IC and 74LS367 IC for the control.
Crystal is 11.0592 Mhz.
DB9 Female, one pin was removed in the DB9 and the two support PINs for the DB9 must me soldered to shor the grounds.
LED is Resistor LED (5V).
Capacitors can ne 33pF or 22 pF.
Molex Connectors were used.
Wall jack power connector.
A jumper to connect the Vcc of the Micro.
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glenjoy
Joined: 01 Jan 2004
Posts: 1028
Helped: 47
Location: Philippines
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02 Jan 2004 16:12 ds5000 board |
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This one is compatible to both Hyperterminal or Dallas' Software Loader.
You can make also your own loader because this micro has its own bootloader.
Please just refer to the databook at Maxim's Website for the microcntrollers specs.
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james
Joined: 14 Sep 2003
Posts: 99
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02 Jan 2004 17:00 t programmer |
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glenjoy,
You have uploaded two files with the same name.
Result: the last one has overwritten the first. So, both files show the same pcb layout while, I think, you should post schematic and silkscreen in order to complete the job successfully.
Don't you agree ? 
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Google
AdSense
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02 Jan 2004 17:00 Ads |
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Zenner
Joined: 19 Sep 2001
Posts: 200
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03 Jan 2004 0:04 programming a dallas ds5000 |
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f t p://ftp.dalsemi.com/pub/microcontroller/dev_tool_software/loader420/Loader420.zip
schematic(loader420.hlp) and software.
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glenjoy
Joined: 01 Jan 2004
Posts: 1028
Helped: 47
Location: Philippines
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03 Jan 2004 1:19 ds89c420 progammer circuit |
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| The schematic in the help file is incomplete and confusing, the design was simplified and some pins were already pulled high/down to facilitate the in Circuit programming.
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Arsalan Uddin
Joined: 26 May 2009
Posts: 1
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26 May 2009 14:23 glenjoy ds89c420 programmer+loader |
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dear friend,
I make programmer DS89C4*0 by the reference of microcontroller by mazidi. i am not getting the conectivity on PC by hyper terminal. Loader can not be detected.
when i download program by keil software, it programmed but timed out when verify.
In nutshell, programmer is not connecting properly to PC. I checked the connection of MAX232 and all about but problem not solved.
Kindly help me.
Arsalan Uddin
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Mar9976
Joined: 23 Sep 2009
Posts: 1
Location: Philippines
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23 Sep 2009 9:08 isp programmer for ds89c420 |
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i would like to address this inquiry to Glenjoy or other people who knows it.
Question:
1. How to use Hyperterminal in loading my compiled programs?.. i already forget this one. i already used this many years ago, just want to refresh.
p.s. i have used this ds50000 programmer by glenjoy already, almost 5-years ago.
thank you very much for your help in advance.
| glenjoy wrote: |
This one is compatible to both Hyperterminal or Dallas' Software Loader.
You can make also your own loader because this micro has its own bootloader.
Please just refer to the databook at Maxim's Website for the microcntrollers specs. |
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