Author Topic: Programming off the shelf CSR8635 module  (Read 50853 times)

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Offline sirtet

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  • Posts: 4
  • Country: ch
Re: Programming off the shelf CSR8635 module
« Reply #125 on: January 22, 2018, 11:37:50 AM »
OK, my module announces itself as Beomaster 1900 now...
(as i will place it inside a Vintage Bang&Olufson Receiver   :))
 I did it with PStools and the DIY LPT programmer, hooked up according to my pinout-image above.
After a first fail, i had to modify the programmer a bit, as i found out the LPT on my Laptop Outputs only 3.3v  ^-^
So I used 6k8 and 5k6 resistors in the voltage dividers and 3.3v as vcc.
For MISO i made a level shifter with 2 transistors, as seen here:
Pin 29 I pulled directly to a 1.8V supply.

Thanks to all who provided all the different bits here and there...

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