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Problem of the output data rate of SDADC1 at STM32F373 MCU

Question asked by renchin shr on Jan 15, 2018

Greetings everyone,


I have a problem about the output data rate of SDADC1 at STM32F373 MCU.


I use the STM32CubeMX to configure the SDADC1 with single channel, and generate code for Keil uVision 5, I notice that the data output rate is 16.6 kHz under 6 MHz sampling rate,but according to  the specification,  the data output rate should be 6 MHz/120 = 50 kHz.


If I change to use SDADC2 channel with the same setting, the data output rate can reach 50 kHz correctly, so I think there may be a bug with the HAL driver, did anyone encounter the same problem?


My software version:

STM32CubeMx Version 4.23.0

Keil uVision