I have problem with implementing MAX6662 chip. I have already interfaced ds1306 rtc with 3wire serial interface and it works. The problem is that the max6662 uses non usual spi interface. There are no mosi/miso pin instead of this there is one bi-directional pin DQ for data transfers. Can this chip be interfaced to this microcontroller ? How to do that (mayby use tri-state buffer`s) ? For first i connected mosi and miso line from uC together and use this code:



And the code for gathering temp:



This is not working. Second problem is that ds1306 uses two data lines and do not respond when lines is connected with each other.

Is there work around ? Or somebody know some spi temp. chip with normal spi interface ?

sorry for my broken
English
Lukasz Bajger