Restart condition is not issued about softwire HOT 5 CLOSED

I was encountering a similar problem with 2.0.7 getting the WHO_AM_I register from an NXP FXOS8700 sensor, and after applying this patch my problem has been fixed. Thanks for fixing this.

Thanks for reporting - I'll close this issue now I have confirmation it is fixed.

from softwire.

That looks like a bug as the repeated start condition is not sent. I need to find some time to look into this in more detail and remind myself of what is supposed to happen.

Can you please post a code snippet showing how you call the SoftWire constructor and setup the RX and TX buffers?

Nice logic traces - what did you use to capture them?

from softwire.

Thank you for the reply. I'm using the following setups.

// in the global scope
SoftWire sw(SDA, SCL);
char swTxBuffer[64];
char swRxBuffer[64];

// in the setup()
sw.setTxBuffer(swTxBuffer, sizeof(swTxBuffer));
sw.setRxBuffer(swRxBuffer, sizeof(swRxBuffer));
sw.setDelay_us(5);
sw.begin();

The entire code is here, and you can reproduce the problem by activating this line instead of the next one.

I'm using Logic Pro 16. It's a super easy and useful one :)

from softwire.

I finally found the time to investigate this properly. I believe it is fixed in v2.0.8. I wasn't able to test with the same I2C device as you, so I used a Microchip MCP79410 real-time clock. This is the logic analyzer trace obtained by writing to and then reading from that device.

from softwire.

I was encountering a similar problem with 2.0.7 getting the WHO_AM_I register from an NXP FXOS8700 sensor, and after applying this patch my problem has been fixed. Thanks for fixing this.

from softwire.