Analog input on xdot

[Martin Pelletier]

i want to use one analog input on the xdot -> (pin 12)
i got mdot-library 3.0.0 and mbed-os 5.4.7

AnalogIn Temperature(SPI_MISO)

And i used Temperature.read_u16();
But i always got 0x0000.
Is it something i forgot?

thx!

[Martin Pelletier]

i found something posted by Lucian Corduneanu 20 Jul 2017.

Concerning the analog input does not work after a sleep(). It is about the ADC clock …

I put this code just after the sleep function and it works!!
// Enable the HSI (to clock the ADC)
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
HAL_RCC_OscConfig(&RCC_OscInitStruct);

[Leon Lindenfelser]

Hi Martin,

This fix was added as of mbed-os-5.5.2. I expect a new stable library release sometime in Q1 of 2018.

Kind regards,
Leon

[Martin Pelletier]

Ok
thx for the info 🙂

Best regards,
Martin

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