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Summary of Contents for DIY PICmicro K149
- Page 1 K149 PICmicro® Programmer DIY Electronics (HK) Ltd PO Box 88458, Sham Shui Po, Hong Kong http://www.kitsrus.com mailto: peter@kitsrus.com Last Modified March 3 2003...
- Page 2 Board Construction The board is quite easy to construct and it is advisable to read through these notes before starting. The USB chip is quite tiny and should be mounted on the underside of the PCB ready for use. WARNING Be aware that the premounted USB chip is sensitive to static electricity discharge and could be damaged by mishandling of the PCB.
- Page 3 Starting The first thing to do is inspect the PCB for shorted or open tracks or other damage. Be aware of the static warning when doing this check. When you are satisfied that all is well, then you can proceed. Start with the flattest parts first, which are the resistors.
- Page 4 There are five transistors supplied. Four of them are PNP type BC558, and one is an NPN BC547. Do not mix them up and mount them as shown on the PCB overlay. Now solder the 9 pin RS232 socket, the USB socket and the power jack on to the board followed by the 7805 and 78L08 regulators, again carefully checking orientation.
- Page 5 Go over the PCB again and check thoroughly for incorrectly placed components, shorts or open circuit joints. If all is well, turn off the power again. Next, mount the 7406 hex open collector inverter, U4, and the ICL232 chip, U3, taking care of chip orientation as it is very hard to remove these chips once soldered.
- Page 6 Click [File] -> Port or double click the COM x label on screen to bring up the COM port window. Select the COM port that you will use for serial communications, then [OK]. Re-check the power and PC connections and turn on the programmer board. You should see Board connected appear on screen.
- Page 7 For example you would download... AN232-03 for Win 98 AN232-05 for Win2000 Download the PDF file into the USB driver directory listed above. Open and follow the simple directions given in the PDF file. This should only take a few minutes to do. When the driver installation is completed, connect a USB cable from the PC to the programmer board.
- Page 9 In Circuit Serial Programming This programmer is capable of doing In Circuit Serial Programming (ICSP). ICSP allows you to program a PICmicro® that is already plugged into it’s target circuit. That is, the chip does not need to be in the programmer socket to program it.
- Page 10 ICSP PROGRAMMING EXAMPLES...
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Page 11: Parts List
PARTS LIST Used Part Type Designators Description SEMICONDUCTORS 74LS06 OC Hex Inverter ICL232 RS232 transiever PIC16F628 PIC Processor FT232BM 78L08 Regulator 7805 Regulator 4MHz Crystal 6MHz Crystal BC558 TR1 TR2 TR3 TR5 PNP Transistor BC547 NPN Transistor IN4004 Diode IN4148 D1 D3 Diode 3mm LED... - Page 12 BC558 BC558 BC558 78L08 SKT1 VccP PROGRAMMER Vout VPP1 DATA CLOCK IN4004 7805 VPP2 VccP Vout DATA CLOCK VccP VccP DATA CLOCK 18VDC VPP2 VccP CLOCK DATA VccP 100N 47uF 10uF VPP1 VPP2 VCCP USBPWR THIS LINK IS SOLDERED BC547 IN POSITION AFTER THE POWER CHECKS HAVE BEEN MADE 470R...
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