Hi,
I'm building my own board with a BMI323. I tripple checked the connections, everything seams fine. I've tried resoldering 3 different BMI323 all with the same result. I'm using the latest offical bmi3 github drivers and all the three BMI323 answeres the correct chip ID but fails when soft-resetting and trying to start the feature engine.
BMI323 CAD:ed like this:
I've taken some I2C logs where I ignore the BMI3_E_FEATURE_ENGINE_STATUS error so I can also configure and read the acc+gyro both with a 0x8000 response on all axis:
write to 0x68 ack data: 0x7E
write to 0x68 ack data: 0xAF 0xDE
write to 0x68 ack data: 0x12
write to 0x68 ack data: 0x2C 0x01
write to 0x68 ack data: 0x14
write to 0x68 ack data: 0x01 0x00
write to 0x68 ack data: 0x40
write to 0x68 ack data: 0x01 0x00
write to 0x68 ack data: 0x11
read to 0x68 ack data: 0x00 0x00 0x00 0x00
write to 0x68 ack data: 0x11
read to 0x68 ack data: 0x00 0x00 0x00 0x00
write to 0x68 ack data: 0x11
read to 0x68 ack data: 0x00 0x00 0x00 0x00
write to 0x68 ack data: 0x11
read to 0x68 ack data: 0x00 0x00 0x00 0x00
write to 0x68 ack data: 0x11
read to 0x68 ack data: 0x00 0x00 0x00 0x00
write to 0x68 ack data: 0x11
read to 0x68 ack data: 0x00 0x00 0x00 0x00
write to 0x68 ack data: 0x11
read to 0x68 ack data: 0x00 0x00 0x00 0x00
write to 0x68 ack data: 0x11
read to 0x68 ack data: 0x00 0x00 0x00 0x00
write to 0x68 ack data: 0x11
read to 0x68 ack data: 0x00 0x00 0x00 0x00
write to 0x68 ack data: 0x11
read to 0x68 ack data: 0x00 0x00 0x00 0x00
write to 0x68 ack data: 0x00
read to 0x68 ack data: 0x00 0x00 0x43 0x11
write to 0x68 ack data: 0x41
write to 0x68 ack data: 0x05 0x00
write to 0x68 ack data: 0x42
write to 0x68 ack data: 0x08 0x10 0x05 0x00 0xFA 0xA0
write to 0x68 ack data: 0x41
write to 0x68 ack data: 0x08 0x00
write to 0x68 ack data: 0x42
write to 0x68 ack data: 0x1E 0x10 0x03 0x00 0xFA 0xA0
write to 0x68 ack data: 0x41
write to 0x68 ack data: 0x1E 0x00
write to 0x68 ack data: 0x42
write to 0x68 ack data: 0xB6 0x00 0xFA 0x64 0x64 0x68
write to 0x68 ack data: 0x41
write to 0x68 ack data: 0x10 0x00
write to 0x68 ack data: 0x42
write to 0x68 ack data: 0x00 0x00 0x33 0x01 0xEC 0xF1 0x50 0x00 0x9A 0xD9 0x7E 0xF6 0x66 0xE6 0x14 0x20 0x0F 0x0E 0xC3 0xF3 0x96 0xA0 0x57 0x0D
write to 0x68 ack data: 0x41
write to 0x68 ack data: 0x0D 0x00
write to 0x68 ack data: 0x42
write to 0x68 ack data: 0xFA 0x00 0x96 0x20 0x53 0x46
write to 0x68 ack data: 0x41
write to 0x68 ack data: 0x1C 0x00
write to 0x68 ack data: 0x42
write to 0x68 ack data: 0xD8 0x54 0x32 0x20
write to 0x68 ack data: 0x21
read to 0x68 ack data: 0x00 0x00 0x48 0x00
write to 0x68 ack data: 0x3A
read to 0x68 ack data: 0x00 0x00 0x00 0x00 0x00 0x00
write to 0x68 ack data: 0x3A
write to 0x68 ack data: 0x00 0x00 0x00 0x01
write to 0x68 ack data: 0x21
write to 0x68 ack data: 0x48 0x40
write to 0x68 ack data: 0x03
read to 0x68 ack data: 0x00 0x00 0x00 0x80 0x00 0x80 0x00 0x80 0x00 0x80 0x00 0x80 0x00 0x80 0x00 0x80 0x14 0x07 0x00 0x00 0x00 0x00
I2C communication looks fine:
What am I doing wrong?