Changes between Version 1 and Version 2 of ICSPBlaster


Ignore:
Timestamp:
Sep 5, 2012, 9:21:34 PM (12 years ago)
Author:
pulkomandy
Comment:

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  • ICSPBlaster

    v1 v2  
    1212The ICSP protocol requires the data line to be bidirectional. The USB Blaster does not allow that. So we have to tie one output and one input pin on the same data pin to be able to read and write, likely adding some resistors in the mix.
    1313
     14== Pinout ==
     15
     16The connector pinout is as follows:
     17<pre>
     181 3 5 7 9
     192 4 6 8 A
     20</pre>
     21
     221 - PGC (TCK)
     232 - GND
     243 - PGD out (TDO)
     254 - VCC
     265 - MCLR and PGM (TMS)
     276 - (N/C)
     287 - (N/C)
     298 - (N/C)
     309 - PGD in (TDI)
     31A - GND
     32
    1433= The software =
    1534The software is based on libftdi to send data to the device. There is nothing really complicated (yet).