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ADS1247寄存器中文翻译

2016-03-28 20:26 281 查看
 

 
ADS1247与ADS1248的寄存器列表
 
ADDRESS
REGISTER
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
00h
MUX0
BCS1
BCS0
MUX_SP2
MUX_SP1
MUX_SP0
MUX_SN2
MUX_SN1
MUX_SN0
01h
VBIAS
VBIAS7
VBIAS6
VBIAS5
VBIAS4
VBIAS3
VBIAS2
VBIAS1
VBIAS0
02h
MUX1
CLKSTAT
VREFCON1
VREFCON0
REFSELT1
REFSELT0
MUXCAL2
MUXCAL1
MUXCAL0
03h
SYS0
0
PGA2
PGA1
PGA0
DR3
DR2
DR1
DR0
04h
OFC0
OFC7
OFC6
OFC5
OFC4
OFC3
OFC2
OFC1
OFC0
05h
OFC1
OFC15
OFC14
OFC13
OFC12
OFC11
OFC10
OFC9
OFC8
06h
OFC2
OFC23
OFC22
OFC21
OFC20
OFC19
OFC18
OFC17
OFC16
07h
FSC0
FSC7
FSC6
FSC5
FSC4
FSC3
FSC2
FSC1
FSC0
08h
FSC1
FSC15
FSC14
FSC13
FSC12
FSC11
FSC10
FSC9
FSC8
09h
FSC2
FSC23
FSC22
FSC21
FSC20
FSC19
FSC18
FSC17
FSC16
 
0Ah
 
IDAC0
 
ID3
 
ID2
 
ID1
 
ID0
DRDY MODE
 
IMAG2
 
IMAG1
 
IMAG0
0Bh
IDAC1
I1DIR3
I1DIR2
I1DIR1
I1DIR0
I2DIR3
I2DIR2
I2DIR1
I2DIR0
0Ch
GPIOCFG
IOCFG7
IOCFG6
IOCFG5
IOCFG4
IOCFG3
IOCFG2
IOCFG1
IOCFG0
0Dh
GPIODIR
IODIR7
IODIR6
IODIR5
IODIR4
IODIR3
IODIR2
IODIR1
IODIR0
0Eh
GPIODAT
IODAT7
IODAT6
IODAT5
IODAT4
IODAT3
IODAT2
IODAT1
IODAT0
 
 
 
 
ADS1247 and ADS1248 寄存器定义
MUX0多路控制开关0。此寄存器可以任意组合的差分输入选择的任何输入通道。请注意，此设置可以通过muxcal和VBIAS位取代。
MUX0  地址00H                                                                                         RESET VALUE = 01h
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
BCS1
BCS0
MUX_SP2
MUX_SP1
MUX_SP0
MUX_SN2
MUX_SN1
MUX_SN0
Bits 7:6   BCS1:0          电流源电流大小设置
00 =关闭电流源（默认）
01 = 0.5uA
10 = 2uA
11 = 10uA
Bits 5:3          MUX_SP2:0  正输入通道选择
000 = AIN0 (default)
001 = AIN1
010 = AIN2
011 = AIN3
100 = AIN4 (ADS1248only)
101 = AIN5 (ADS1248only)
110 = AIN6 (ADS1248only)
111 = AIN7 (ADS1248only)
Bits 2:0       MUX_SN2:0 负输入通道选择
000 = AIN0
001 = AIN1 (default)
010 = AIN2
011 = AIN3
100 = AIN4 (ADS1248only)
101 = AIN5 (ADS1248only)
110 = AIN6 (ADS1248only)
111 = AIN7 (ADS1248only)
 

VBIAS—偏执电压设置寄存器
 
VBIAS – 地址 01h                                                                                                                                                         RESET VALUE = 00h
DEVICE
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
ADS1248
VBIAS7
VBIAS6
VBIAS5
VBIAS4
VBIAS3
VBIAS2
VBIAS1
VBIAS0
ADS1247
0
0
0
0
VBIAS3
VBIAS2
VBIAS1
VBIAS0
Bits 7:0       VBIAS7:0 设置偏压(AVDD + AVSS)/2到选择的模拟输入
0 = 关闭偏执电压 (default)
1 = 开启偏执电压到对应的输入 (bit 0 对应到AIN0,依次类推.).
 
MUX1—多路开关控制器1
 
MUX1 - ADDRESS 02h                                                                                                                                                   RESET VALUE = 00h
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
CLKSTAT
VREFCON1
VREFCON0
REFSELT1
REFSELT0
MUXCAL2
MUXCAL1
MUXCAL0
Bit 7           CLKSTAT  此位为只读，并表示内部或外部振荡器是否正在使用。
0 = 内部时钟正在使用
1 = 外部时钟正在使用
Bits 6:5       VREFCON1:0  控制内部电压基准。这些位允许引用完全打开或关闭，或允许引用状态跟随设备的状态。注意内部参考为IDAC功能操作要求。
00 =关闭基准fault)
01 = 一直开启基准
10 or 11 =转换完成后或关机操作后关闭基准（跟随相关状态自动开启或关闭）
Bits 4:3       REFSELT1:0 ADC参考选择
00 =使用REF0作为基准输入(default)
01 =使用REF1作为基准输入(只支持ADS1248)
10 =选择内部基准
11 =在内部连接到参考选择REF0输入对（不知道干嘛的）
Bits 2:0       MUXCAL2:0这些位用于选择一个测量方式（选择的测量方式将取代MUX_SP, MUX_SN,  and VBIAS）
000 =正常运行 (default)
001 =偏移测量
010 =增益测量
011 =内部温度测量
100 = 外部 REF1 测量(ADS1248 only)
101 = 外部REF0测量
110 = AVDD 测量
111 = DVDD 测量
MUXCAL 设置
 
MUXCAL[2:0]
PGA GAIN 设置
ADC INPUT
000
通过SYS0设置
正常模式

001
通过SYS0设置
输入接到 (AVDD + AVSS)/2
010
强制设置为1 1
VREFP – VREFN (full-scale)

011
强制设置为1
内部温度测量
100
强制设置为1
(VREFP1 – VREFN1)/4

101
强制设置为1
(VREFP0 – VREFN0)/4

110
强制设置为1
(AVDD – AVSS)/4

111
强制设置为1
(DVDD – DVSS)/4

 
设置会修改PGA，恢复正常模式后PGA由SYS0控制

 

 

SYS0—系统控制寄存器 0
 
SYS0 - ADDRESS 03h                                                                                                                                                    RESET VALUE = 00h
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
0
PGA2
PGA1
PGA0
DOR3
DOR2
DOR1
DOR0
Bit 7           必须一直为 '0'
Bits 6:4       PGA2:0  PGA增益设置
000 = 1 (default)
001 = 2
010 = 4
011 = 8
100 = 16
101 = 32
110 = 64
111 = 128
Bits 3:0       DOR3:0  ADC采集速率设置 最大设置为1001，选择2000sps
0000 = 5SPS (default)
0001 = 10SPS
0010 = 20SPS
0011 = 40SPS
0100 = 80SPS
0101 = 160SPS
0110 = 320SPS
0111 = 640SPS
1000 = 1000SPS
1001 to 1111 = 2000SPS
 
OFC23:0    ADS1248偏移校准系数寄存器.
 
OFC0—偏移校正系数寄存器0
 
OFC0 - ADDRESS 04h                                                                                                                                           RESET VALUE = 000000h
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
OFC7
OFC6
OFC5
OFC4
OFC3
OFC2
OFC1
OFC0
 
OFC1—偏移校正系数寄存器1
 
OFC1 - ADDRESS 05h                                                                                                                                           RESET VALUE = 000000h
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
OFC15
OFC14
OFC13
OFC12
OFC11
OFC10
OFC9
OFC8
 
OFC2—偏移校正系数寄存器2
 
OFC2 - ADDRESS 06h                                                                                                                                           RESET VALUE = 000000h
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
OFC23
OFC22
OFC21
OFC20
OFC19
OFC18
OFC17
OFC16
 
 
FSC23:0 满量程校准系数寄存器（复位后恢复出厂校准值）.
 
FSC0—满量程校准寄存器0
 
FSC0 - ADDRESS 07h                                                                                                                      RESET VALUE IS PGA DEPENDENT (1)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
FSC7
FSC6
FSC5
FSC4
FSC3
FSC2
FSC1
FSC0
 
 
FSC1—满量程校准寄存器1
 
FSC1 - ADDRESS 08h                                                                                                                      RESET VALUE IS PGA DEPENDENT (1)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
FSC15
FSC14
FSC13
FSC12
FSC11
FSC10
FSC9
FSC8
 
FSC2—满量程校准寄存器2
 
FSC2 - ADDRESS 09h                                                                                                                      RESET VALUE IS PGA DEPENDENT (1)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
FSC23
FSC22
FSC21
FSC20
FSC19
FSC18
FSC17
FSC16
 
 
 
IDAC0 可编程电流源控制寄存器 0
 
IDAC0 - ADDRESS 0Ah                                                                                                                                                  RESET VALUE = x0h
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
ID3
ID2
ID1
ID0
DRDY MODE
IMAG2
IMAG1
IMAG0
Bits 7:4       ID3:0
只读只读，工厂编程位，用于识别修改版本。
Bit 3           DRDY MODE  用于设置DOUT/DRDY输出数据准备就绪状态，低电平有效
0 = DOUT/DRDY仅作为数据输出(default)
1 = DOUT/DRDY引脚功能既作为数据输出和数据准备，低电平有效
Bits 2:0  IMAG2:0   ADS1247/8有两个可编程电流源DAC可用于传感器激励。这几位控制激励电流的大小。IDAC要求内部基准源必须开启.
000 = off (default)
001 = 50mA
010 = 100mA
011 = 250mA
100 = 500mA
101 = 750mA
110 = 1000mA
111 = 1500mA
 
 
IDAC1 可编程电流源控制寄存器1
 
IDAC1 - ADDRESS 0Bh                                                                                                                                                 RESET VALUE = FFh
DEVICE
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
ADS1248
I1DIR3
I1DIR2
I1DIR1
I1DIR0
I2DIR3
I2DIR2
I2DIR1
I2DIR0
ADS1247
0
0
I1DIR1
I1DIR0
0
0
I2DIR1
I2DIR0
 
ADS1247/8有2路IDAC，可以连接到IEXC1，IEXC2或任意模拟输入。
 
Bits 7:4       I1DIR3:0 这些位选择第一电流源DAC输出引脚。
0000 = AIN0
0001 = AIN1
0010 = AIN2
0011 = AIN3
0100 = AIN4 (ADS1248only)
0101 = AIN5 (ADS1248only)
0110 = AIN6 (ADS1248only)
0111 = AIN7 (ADS1248only)
10x0 = IEXT1 (ADS1248only)
10x1 = IEXT2 (ADS1248only)
11xx = 关闭(default)
Bits 3:0       I2DIR3:0 这些位选择了第二电流源DAC的输出引脚
0000 = AIN0
0001 = AIN1
0010 = AIN2
0011 = AIN3
0100 = AIN4 (ADS1248only)
0101 = AIN5 (ADS1248only)
0110 = AIN6 (ADS1248only)
0111 = AIN7 (ADS1248only)
10x0 = IEXT1 (ADS1248only)
10x1 = IEXT2 (ADS1248only)
11xx = 关闭(default)
 
 
GPIOCFG—GPIO 配置寄存器，用于配置GPIO与模拟输入引脚复用功能
GPIO0 复用 REFP0

GPIO1 复用 REFN0

GPIO2 复用 AIN2

GPIO3 复用 AIN3

GPIO4复用 AIN4 (ADS1248)

GPIO5复用 AIN5 (ADS1248)

GPIO6复用 AIN6 (ADS1248)

GPIO7复用 AIN7 (ADS1248)

 
GPIOCFG - ADDRESS 0Ch                                                                                                                                           RESET VALUE = 00h
DEVICE
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
ADS1248
IOCFG7
IOCFG6
IOCFG5
IOCFG4
IOCFG3
IOCFG2
IOCFG1
IOCFG0
ADS1247
0
0
0
0
IOCFG3
IOCFG2
IOCFG1
IOCFG0
Bits 7:0       IOCFG7:0 GPIO与模拟输入复用设置，注意ADS1248支持所有GPIO，但是ADS1247只支持GPIO1-GPIO3，也就是BIT0-BIT3
0 = 该引脚用作模拟输入(default)
1 = 该引脚用作 GPIO pin
 
 
GPIODIR—GPIO方向寄存器
GPIODIR - ADDRESS 0Dh                                                                                                                                             RESET VALUE = 00h
DEVICE
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
ADS1248
IODIR7
IODIR6
IODIR5
IODIR4
IODIR3
IODIR2
IODIR1
IODIR0
ADS1247
0
0
0
0
IODIR3
IODIR2
IODIR1
IODIR0
Bits 7:0       IODIR7:0 用于控制GPIO方向，注意ADS1248支持所有GPIO，但是ADS1247只支持GPIO1-GPIO3，也就是BIT0-BIT3
0 = GPIO输出模式 (default)
1 = GPIO  输入模式
 
 
GPIODAT—GPIO数据寄存器
 
GPIODAT - ADDRESS 0Eh                                                                                                                                            RESET VALUE = 00h
DEVICE
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
ADS1248
IODAT7
IODAT6
IODAT5
IODAT4
IODAT3
IODAT2
IODAT1
IODAT0
ADS1247
0
0
0
0
IODAT3
IODAT2
IODAT1
IODAT0
Bits 7:0       IODAT7:0 如果对应GPIO设置为输出，则写入对应bit会输出到相应引脚，如果对应GPIO设置为输入，则读取对应bit对应输入值，注意ADS1248支持所有GPIO，但是ADS1247只支持GPIO1-GPIO3，也就是BIT0-BIT3

SPI 命令
 
一些指令是独立的命令（例如，复位），而另一些则需要额外的字节（例如，写命令需要计数和数据字节）

 
 
操作数说明:

n =读写寄存器的数量(要读取的字节 – 1)
r = 寄存器 (0 to 15)
x = 不关心
 
SPI 命令列表
 
COMMAND TYPE
COMMAND
DESCRIPTION
1st COMMAND BYTE
2nd COMMAND BYTE
 
 
 
System Control
WAKEUP
退出睡眠模式
0000 000x (00h, 01h)
 
SLEEP
进入睡眠模式
0000 001x (02h, 03h)
 
SYNC
同步AD转换
0000 010x (04h, 05h)
0000-010x (04,05h)
RESET
复位
0000 011x (06h, 07h)
 
NOP
             空指令
1111 1111 (FFh)
 
 
 
Data Read
RDATA
读取数据
0001 001x (12h, 13h)
 
RDATAC
连续读取数据
0001 010x (14h, 15h)
 
SDATAC
停止读取数据
0001 011x (16h, 17h)
 
Read Register
RREG
读寄存器 rrrr
0010 rrrr (2xh)
0000_nnnn
Write Register
WREG
写寄存器rrrr
0100 rrrr (4xh)
0000_nnnn
 
 
Calibration
SYSOCAL
系统失调校准
0110 0000 (60h)
 
SYSGCAL
系统增益校准
0110 0001 (61h)
 
SELFOCAL
自校正
0110 0010 (62h)
 
 

 

 
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标签：  ADS1247 ADS1246 ADS1248
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