I've got an interface problem. I want to convert SPI in I2c (a 68hc11 has to communicate on an I2C bus, and its UART is already use.) Is there something like MAX3110 (SPI<--> USART converter), but for SPI<-->I2C ? Do not found it on Maxim website. First: The 68HC11F1 will be the master on the I2C bus , and all slave will be some PICs Why not use SPI for all micros?: because actually there will be 6 micro on the bus, and maybe more in the future. With the SPI, this bus will take about 10 wire, and 3 in I2C. Second: all my PCB are already designed. The app is a 5-axys machine (1X, 2Y, 1Z and one Theta). ____________________ Samuel BOUQUET Sociiti INOV'TRONIK 8/10 rue Emile Sehet ZA des chataigniers 95150 Taverny ____________________ Tel: (33) 1 39 95 29 50 Fax: (33) 1 39 95 74 10 s.bouquet@inovtronik.com -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu