ponyprog
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Bug fix: disable I2C mode when I2CBus is closed
This PR fixes the following issue.
Issue description
Hardware: PonyProgFT
Scenario 1:
- open PonyProg
- flash an SPI EEPROM (25xxx)
Result: everything OK, nEN_BUS
always high.
Scenario 2:
- open PonyProg
- flash an I2C EEPROM (24xxx)
- flash an SPI EEPROM (25xxx)
Result: issue -> nEN_BUS
always low during programming.