YTM32B1MD1 ADC Selftest

[nguyan2]

Hello everyone,

Does the YTM32B1MD1 have a built-in ADC self-test feature?

I need to implement an ADC self-test without modifying the hardware, so I’m looking for an alternative solution. However, I couldn’t find any related information in the Reference Manual.

Has anyone here tried this before or found a way to achieve it?

Thanks!

[houjun_xiao]

The ADC hardware does not support a built-in self-test function. However, you can implement the ADC self-test through software, using the internal ADC channel (PMC VREF) provided by the MCU.

[nguyan2]

houjun_xiao 在 YTM32B1MD1 ADC Selftest 中说：

The ADC hardware does not support a built-in self-test function. However, you can implement the ADC self-test through software, using the internal ADC channel (PMC VREF) provided by the MCU.

Thanks for your reply.

Does the PMC VREF internally connected to any external channel like the Temperature Sensor was internally connected to the external channel 31 (ADC0_SE31)?

[houjun_xiao]

The ADC_SEx are the external input channels of the ADC, but the internal temperature sensor and PMC VREF are all internal input channels of the ADC .So they do not need to be connected to ADC_SEx. The PMC VREF can be converted by configuring the corresponding channel number into the ADC[CHSEL] register. The channel number for PMC VREF is 33.