SPI SSN pin

[bob2399]

Posted on January 14, 2008 at 13:39

SPI SSN pin

[bob2399]

Posted on January 07, 2008 at 16:52

hello everyone! i am currently looking into using the SPI port on the STR712FR2T6 part. i noticed that the SSN pin is always show as pulled HIGH when the uC is the Master. am i to assume that this SSN pin cannot be used as a PORT0 output pin? It cannot be used as the chip select to an SPI EEPROM? so its wasted during Master mode? thanks for any info.

Bob Zeranski

[christophe239955_st]

Posted on January 14, 2008 at 13:39

The SS on the master must be deasserted high :o You have to use another GPIO pin drive the EEPROM chip select line .

Chris.