SPI Communication Rate of ESP32
Posted: Wed Mar 06, 2019 2:34 pm
Hi everyone,
I am currently using ESP32-thing from Sparkfun and I wonder whether this microcontroller can handle upto 20MHz of SPI clock speed without any modification?
The project is that I need to daisy chain 4 DDC232's from TI together. This ADC chip has 32 input channels at 20-bit resolution. The data can be streamed as a single string of 32x20 bit of data at 500Hz through the SPI bus.
Is my microcontroller fast enough to handle this data? Can SPI master API support this long string of data?
Thanks,
Khoi Ly
I am currently using ESP32-thing from Sparkfun and I wonder whether this microcontroller can handle upto 20MHz of SPI clock speed without any modification?
The project is that I need to daisy chain 4 DDC232's from TI together. This ADC chip has 32 input channels at 20-bit resolution. The data can be streamed as a single string of 32x20 bit of data at 500Hz through the SPI bus.
Is my microcontroller fast enough to handle this data? Can SPI master API support this long string of data?
Thanks,
Khoi Ly