Hai there,
we migrating from PicoCOM2 to PicoCom4.
Our application is working with the PicoCOM2 but makes SPI communication problems with the PicoCOM4 modul.
Our SPI driver version is V3.2.
.
We operate in SPI mode 3, that means data is valid on the second rising edge.
It also means that the data is latshed on each falling edge of the clock signal.
See documentation
QuoteNSPI Driver, Native SPI Support, V3.1 (2011-11-14), page 6, Figure 10: SPI_Mode_3
Unfortunatley the signal is not conform with specification because the data on the PicoCOM4 is not latched on the falling edge but instead on the rising edge. this chauses a malfunction of our SPI chip MCP4822 application.
Please help us to solve the problem quickly.