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Written by Andreas Krebs
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Thursday, 24 July 2008 16:55 |
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LPC-Programmer
To program the P89LPC922 microcontroller we need a programming adapter. This has a serial port (RS232), a power supply by 9V power adapter, and a programming connector (6 pin connector). This is connected wire by wire with our controller boards over ISP. Additional there is in this variant a socket to programming the LPC on the Programmer board .
The free software "Flash Magic" there on the WWW.
A recurring problem is the availability of 2 versions of the LM317. Has we caught the wrong that makes itself felt by an excessively high output voltage. So you should only measure the voltage before you connect to your server or uses the LPC controller. Is given the error, it must be soldered to the LM 317 rotated 180 °.
In addition to the LM317 you must solder a 2-pole switch. In any case, taking from a push button! These are internally bridged.
And here, for the simple reproduction represents another Reichelt shop basket. The 2-pole switch is not quite ideal, and populate it with something hobbist on the PCB. But this is only required if you want to test it with the programmer self-written software.The switch is not required to flash the microcontroller. Here again only the wiring diagram:

At this point I do not want the layout withheld:

Here's a picture of the finished Programmer:

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Last Updated on Sunday, 07 February 2010 07:01 |