IONI hardware revisions

List IONI drive hardware revisions and changes.

Release date	Models	PCB version	Component configuration	Changes
2015	IONI, IONI Pro, IONI Pro HC	V26	Initial version	Initial release
1.2017	IONI, IONI Pro	V26	V6	Changed voltage sense resistor value to have equal value with other models No practical effect for end user Changed GPI1,2,3 series resistors from 220 ohm to 68 ohm Improve clock signal strength with BiSS and SSI encoders
1.2017	IONI Pro HC	V26	V6	Changed GPI1,2,3 series resistors from 220 ohm to 68 ohm Improve clock signal strength with BiSS and SSI encoders
1.2017	IONI, IONI Pro, IONI Pro HC	V29	V6	New PCB revision with reduced encoder to current sense crosstalk In high inductance motors may reduced motor audible noise Crosstalk is reduced by approximately 10 dB Added 3300 ohm pull-up resistor to GPI5 input

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