STMicroelectronics FlexSPIN: SPI configurable stepper and DC multi motor driver evaluation board EVAL6460 EVAL6460 数据表
产品代码
EVAL6460
L6460
AD converter
Doc ID 17713 Rev 1
81/139
Figure 24.
A2D block diagram
The A2D system is enabled by setting the A2DEnable bit to ‘1’ in the A2DControl register.
The A2DType bit in the A2DConfigX registers selects the A2D active configuration (8-bit
resolution or 9-bit) according to the
resolution or 9-bit) according to the
.
The multiplexer channel to be converted can be chosen by writing the A2DChannel1[4:0] or
A2DChannel2[4:0] bits in the A2DConfigX register; the channel addresses table is reported
in the
A2DChannel2[4:0] bits in the A2DConfigX register; the channel addresses table is reported
in the
.
Table 30.
ADC truth table
A2DEnable
A2DType A2D
operation
0
X
Disabled
1
0
ADC working as a
8-bit
ADC
1
1
ADC working as a
9-bit
ADC
S&H
A2D
To SPI
Analog Mux
V
supply
V
LINmain FB
V
GPIO[0:14]
RefOpAmpX
Current DAC
Temp Sensors
Conversion
Address 0
Address 0
Conversion
Address 1
Address 1
SWDRV_F
B
V
SWmain FB
V
pump
V
3v3
Co
n
ver
sion
Do
n
e 1
Co
n
ve
rs
ion
Re
su
lt
Co
n
ve
rs
ion
Do
n
e
0
A2
DE
n
ab
le
S
elected
A2
DTyp
e
Sa
mp
le
T
ime 0
Sa
m
p
le
Ti
me
1
A2
DTyp
e 0
A2
DTyp
e 1
OutStripStepperPHX