Naim CDX2 PMD200 sometimes has problem

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chansiukwing

Member
Joined 2009
Below is my evaluation:
PIC12F629
pin 1 connected to VDD
pin 2 connected to PMD200 pin 18 SPI/I2C
pin 3 tied HIGH connected to PMD200 pin 26 SCL
pin 4 seems no connection
pin 5 connected to GND
pin 6 tied HIGH connected toPMD200 pin 25 SDA
pin 7 tied LOW connected to PMD200 pin 29 RESET
pin 8 connected to GND

Pulse waveforms can be observed on pin 3, 4, 6 and 7.
PIC12F629 is always working and does not go to sleep.
So that PMD200 is not properly set up at all.

Can anybody help me fix this problem?
 
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