Hello, On BeagleBone Black. I can play with digital gpios without issue.
On an I2C bus, i connected 1 DS1621, 1 DS1631, 1 arduino and 1 BBB with 2 pull up resistors (2x 4.7 Kohms) >From the arduino, via an I2C scanner, OK, we can see 2 different addresses: DS1621 = 0x48 DS1631 = 0x49 >From the BBB, we do not see anything ! On BBB : I2C1_SCL (P9 pin 17 / gpio0_5) I2C1_SDA (P9 pin 18 / gpio0_4) Logs : droopy# dmesg | grep iic tiiic0 at simplebus0 rev 0.11 iic0 at tiiic0 "ti,tps65217" at iic0 addr 0x24 not configured "atmel,24c256" at iic0 addr 0x50 not configured nxphdmi0 at iic0 addr 0x70: rev 0x0301 tiiic1 at simplebus0 rev 0.11 iic1 at tiiic1 "atmel,24c256" at iic1 addr 0x54 not configured "atmel,24c256" at iic1 addr 0x55 not configured "atmel,24c256" at iic1 addr 0x56 not configured "atmel,24c256" at iic1 addr 0x57 not configured What is wrong ? Olivier.
