HydraFW ADC guide

HydraFW ADC (Analog to Digital Converter)

This guide is updated towards firmware release HydraFW v0.10 and later

Input: 0 to 3.3V
Resolution: 12bits

ADC configuration syntax description:

• Usage: adc <adc1/tempsensor/vrefint/vbat> [period (nb ms)] [samples (nb sample)/continuous]
• adc1 is mapped on PA1 pin
• tempsensor Temperature sensor (mapped internally in MCU)
• vrefint Internal reference voltage (mapped internally in MCU)
• vbat VBAT voltage (mapped internally in MCU)

Syntax:

• adc1, tempsensor, vrefint or vbat to choose one or more ADC device

  • Return value in Volt

• period Delay between samples (msec) (support k, m suffix or no suffix)

• sample Number of samples (support k, m suffix or no suffix)

• trigger Set trigger bounds

  • low ADC trigger lower bound
  • high ADC trigger higher bound
  • delay ADC trigger delay (uS)
  • start Start trigger

• continuous Read continuously

ADC example:

> adc adc1
ADC1
0.8050

> adc tempsensor
Temp
0.7978

> adc vrefint
VREF
1.2192

> adc vbat
VBAT
1.6512

> adc adc1 tempsensor vrefint vbat
ADC1    Temp    VREF    VBAT
0.6841  0.7873  1.2192  1.6512

> adc adc1 tempsensor vrefint vbat samples 5
ADC1    Temp    VREF    VBAT
0.6720  0.7873  1.2192  1.6512
0.7059  0.7873  1.2192  1.6504
0.7075  0.7873  1.2192  1.6512
0.7027  0.7873  1.2192  1.6504
0.6720  0.7889  1.2192  1.6512