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| author | Brendan Le Foll <brendan.le.foll@intel.com> | 2014-11-07 15:05:23 +0000 |
|---|---|---|
| committer | Brendan Le Foll <brendan.le.foll@intel.com> | 2014-11-07 15:05:23 +0000 |
| commit | fdb11d98ea4c362bf56a5a1179893ad6ad8bd71a (patch) | |
| tree | 81a34d6d09dcefe58dc821aebc5b8fbdc20fbc8f /docs/galileorevh.md | |
| parent | bb3228ad5854b5f289c32737a6a106b139e24a05 (diff) | |
galileorevh.md: add i2c frequency info
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
Diffstat (limited to 'docs/galileorevh.md')
| -rw-r--r-- | docs/galileorevh.md | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/docs/galileorevh.md b/docs/galileorevh.md index a9b3272..0f896bb 100644 --- a/docs/galileorevh.md +++ b/docs/galileorevh.md @@ -6,8 +6,11 @@ Application Processor, a 32-bit Intel Pentium-class system on a chip. The Gen 2 board has the following limitations in libmraa: -- i2c is set at 400Khz speed cannot be changed without reloading kernel module -- i2c bus is shared with multiple devices, scanning it usually fails +- i2c is set at 400Khz speed cannot be changed without reloading kernel module, + the driver is intel_qrk_gip_i2c and the parameter is i2c_std_mode which must + be set to 1 in order to set the i2c bus speed to 100Khz +- i2c bus is shared with multiple devices in kernel space, scanning it usually + fails - pwm period is set globally for all pwm channels, when changed this will halt all pwm channels - adc kernel module will return 12bit number but the ADC itself only has an |