5.0 SERIAL INTERFACE Three different serial interfaces (OWI, SPI and I2C) are supported in the NSA2860X to configure registers, program EEPROM and
pulling measured data. When register bit ‘OWI_WINDOW’ = 0, the time between 10ms and 80ms after powering up is defined as
the OWI entering window. If a special 24 bits OWI entering pattern is detected via OWI pin in this window, the chip enters OWI
communication mode, otherwise enters I2C or SPI communication mode. Then, CSB pin is used to further select between I2C and
SPI methods, high voltage level or floating indicates the I2C method, low voltage level indicates the SPI method. When
‘OWI_WINDOW’ = 1, the OWI window becomes infinite length.
that's what datasheet says. so, skip first 100ms after power-on reset (or device reset if you use it), then use SPI or I2C. I think, 1wire OWI is not suitable to communicate with such a sophisticated device.
Ralex (Сегодня, 14:01, просмотров: 24) ответил KateFirsova на Could you please tell me how you managed to communicate with the
chip? Mine won’t respond at all—we’ve tried every method, but it
remains completely silent. Is there some kind of secret to it?