Part Number: FPC202
Hi,
We use FPC202 for the SPF signal aggregator and we have met the below issue:
- The communicate mode: Two wires are pulled out from I2C2_SCL and I2C2_SDA, connected to a computer via an I2C-to-USB adapter, and communication is performed using the utools_iic software. The SCL frequency is 100 kHz, and the 7-bit device address is 0F (which is represented as 1E in 8 bits).
- The issue: The communication was unstable, and although it succeeded once with register read/write operations, after power cycling, the device address 0F could be detected again, but register access failed. (Since the chip has already been removed, no screenshots of previous test results were saved, so no result images can be provided.)
- The schematic diagram as below:
