2023-02-07 07:01 AM
Hi ,
We connected STM32F051 to ASM330 over SPI .
The communication works Chip select as a GPIO line the SPI is not able to correctly toggle the Chip select . There is a 10K ohm Pull-Up resistor on the Chip Select Line between STM and ASM . Is this correct ?.
What is the suggested solution for the Chip select line to be controlled with SPI and not to use Chip select as GPIO .
2023-02-07 08:38 AM
Maybe the pullup is in case the MEMs is used only in I2C bus mode and NSS is not connected?
2023-02-10 07:11 AM
Further Chip Select changes between SPI based CHIP SELECT and GPIO Toggling test results
The Left Side Screen shows with Chip Select controlled by SPI , Right Side screen shows Chip Select controlled as GPIO toggling works with ASM330 .
The Chip Select Controlled by SPI does not work where as the Chip Select controlled as GPIO Toggling works with ASM330 .