TS-TPC-7990 TWI: Difference between revisions
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Revision as of 16:15, 27 October 2016
The i.MX6 supports standard I2C at 100khz, or using fast mode for 400khz operation. The CPU has 2 I2C buses used on the TS-7990.
I2C 0 is used for many onboard peripherals only, but I2C 1 is unused and brought out to the DIO header pins 1/3.
| Address | Device |
|---|---|
| 0x0a | SGTL5000 audio codec |
| 0x1c | #Accelerometer |
| 0x28-0x2f | #FPGA |
| 0x5c [1] | Capacitive Touch Controller |
| 0x68 | #RTC |
| 0x6b | #Silabs |
- ↑ LXD option only
The kernel makes the I2C available at /dev/i2c-#. You can use the i2c-tools (i2cdetect, i2cget, i2cset), or you can write your own client.