MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 201
MCBSTM32EXL
Manufacturer Part Number
MCBSTM32EXL
Description
BOARD EVALUATION FOR STM32F103ZE
Manufacturer
Keil
Specifications of MCBSTM32EXL
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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RM0008
11.3.1
11.3.2
11.3.3
Table 60.
ADC on-off control
The ADC can be powered-on by setting the ADON bit in the ADC_CR2 register. When the
ADON bit is set for the first time, it wakes up the ADC from Power Down mode.
Conversion starts when ADON bit is set for a second time by software after ADC power-up
time (t
You can stop conversion and put the ADC in power down mode by resetting the ADON bit. In
this mode the ADC consumes almost no power (only a few µA).
ADC clock
The ADCCLK clock provided by the Clock Controller is synchronous with the PCLK2 (APB2
clock). The RCC controller has a dedicated programmable prescaler for the ADC clock, refer
to
details.
Channel selection
There are 16 multiplexed channels. It is possible to organize the conversions in two groups:
regular and injected. A group consists of a sequence of conversions which can be done on
any channel and in any order. For instance, it is possible to do the conversion in the
following order: Ch3, Ch8, Ch2, Ch2, Ch0, Ch2, Ch2, Ch15.
●
●
If the ADC_SQRx or ADC_JSQR registers are modified during a conversion, the current
conversion is reset and a new start pulse is sent to the ADC to convert the new chosen
group.
V
V
V
V
ADCx_IN[15:0]
REF+
DDA
REF-
SSA
Low-, medium- and high-density reset and clock control (RCC) on page 74
The regular group is composed of up to 16 conversions. The regular channels and
their order in the conversion sequence must be selected in the ADC_SQRx registers.
The total number of conversions in the regular group must be written in the L[3:0] bits in
the ADC_SQR1 register.
The injected group is composed of up to 4 conversions. The injected channels and
their order in the conversion sequence must be selected in the ADC_JSQR register.
The total number of conversions in the injected group must be written in the L[1:0] bits
in the ADC_JSQR register.
Name
STAB
).
ADC pins
Input, analog reference
positive
Input, analog supply
Input, analog reference
negative
Input, analog supply
ground
Analog input signals
Signal type
Doc ID 13902 Rev 9
The higher/positive reference voltage for the ADC,
2.4 V
Analog power supply equal to V
2.4 V
The lower/negative reference voltage for the ADC,
V
Ground for analog power supply equal to V
16 analog input channels
REF-
= V
V
V
REF+
DDA
SSA
Analog-to-digital converter (ADC)
V
V
DD
DDA
(3.6 V)
Remarks
DD
and
for more
SS
201/995
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