Comments (6)
rasendubi
commented on May 24, 2024
We should also switch to using I2C_GetLastEvent instead of I2C_GetFlagStatus because the former allows checking for errors.
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forGGe
commented on May 24, 2024
@rasendubi Makes sense.
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forGGe
commented on May 24, 2024
@Dubland : check #19 (comment)
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forGGe
commented on May 24, 2024
Function usage is described in stm32 i2c source.
Checks like these https://github.com/forGGe/theCore/blob/develop/platform/stm32/export/aux/i2c_bus.hpp#L586 must be re-implemented using I2C_GetFlagStatus.
Error can be reported using bus event:
https://github.com/forGGe/theCore/blob/develop/platform/common/export/common/bus.hpp#L26
After that, soft_reset can try to repeat xfer if necessary:
https://github.com/forGGe/theCore/blob/develop/dev/sensor/htu21d/export/dev/sensor/htu21d.hpp#L177
Talk to @vadimol for more details of how i2c driver works if something unclear.
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rasendubi
commented on May 24, 2024
A small correction: checks must be re-implemented using I2C_GetLastEvent.
I2C_GetFlagStatus resets some status flags so is not appropriate to call multiple times in a row.
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forGGe
commented on May 24, 2024
Implemented as a part of #279 Thanks to @Dubland !
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