ADS1247寄存器中文翻譯

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ADS1247與ADS1248的寄存器列表

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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

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0Ah

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IDAC0

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ID3

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ID2

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ID1

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ID0

DRDY MODE

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IMAG2

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IMAG1

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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

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ADS1247 and ADS1248 寄存器定義

MUX0多路控制開關0。此寄存器可以任意組合的差分輸入選擇的任何輸入通道。請注意，此設置可以通過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????????? 電流源電流大小設置

00 =關閉電流源（默認）

01 = 0.5uA

10 = 2uA

11 = 10uA

Bits 5:3????????? MUX_SP2:0? 正輸入通道選擇

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 負輸入通道選擇

000 = AIN0

001 = AIN1 (default)

010 = AIN2

011 = AIN3

100 = AIN4 (ADS1248only)

101 = AIN5 (ADS1248only)

110 = AIN6 (ADS1248only)

111 = AIN7 (ADS1248only)

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VBIAS—偏執(zhí)電壓設置寄存器

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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 設置偏壓(AVDD + AVSS)/2到選擇的模擬輸入

0 = 關閉偏執(zhí)電壓 (default)

1 = 開啟偏執(zhí)電壓到對應的輸入 (bit 0 對應到AIN0,依次類推.).

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MUX1—多路開關控制器1

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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? 此位為只讀，并表示內(nèi)部或外部振蕩器是否正在使用。

0 = 內(nèi)部時鐘正在使用

1 = 外部時鐘正在使用

Bits 6:5?????? VREFCON1:0? 控制內(nèi)部電壓基準。這些位允許引用完全打開或關閉，或允許引用狀態(tài)跟隨設備的狀態(tài)。注意內(nèi)部參考為IDAC功能操作要求。

00 =關閉基準fault)

01 = 一直開啟基準

10 or 11 =轉(zhuǎn)換完成后或關機操作后關閉基準（跟隨相關狀態(tài)自動開啟或關閉）

Bits 4:3?????? REFSELT1:0 ADC參考選擇

00 =使用REF0作為基準輸入(default)

01 =使用REF1作為基準輸入(只支持ADS1248)

10 =選擇內(nèi)部基準

11 =在內(nèi)部連接到參考選擇REF0輸入對（不知道干嘛的）

Bits 2:0?????? MUXCAL2:0這些位用于選擇一個測量方式（選擇的測量方式將取代MUX_SP, MUX_SN, ?and VBIAS）

000 =正常運行 (default)

001 =偏移測量

010 =增益測量

011 =內(nèi)部溫度測量

100 = 外部 REF1 測量(ADS1248 only)

101 = 外部REF0測量

110 = AVDD 測量

111 = DVDD 測量

MUXCAL 設置

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MUXCAL[2:0]

PGA GAIN 設置

ADC INPUT

000

通過SYS0設置

正常模式

001

通過SYS0設置

輸入接到 (AVDD + AVSS)/2

010

強制設置為1 1

VREFP – VREFN (full-scale)

011

強制設置為1

內(nèi)部溫度測量

100

強制設置為1

(VREFP1 – VREFN1)/4

101

強制設置為1

(VREFP0 – VREFN0)/4

110

強制設置為1

(AVDD – AVSS)/4

111

強制設置為1

(DVDD – DVSS)/4

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設置會修改PGA，恢復正常模式后PGA由SYS0控制

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SYS0—系統(tǒng)控制寄存器?0

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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?????????? 必須一直為 '0'

Bits 6:4?????? PGA2:0 ?PGA增益設置

000 = 1 (default)

001 = 2

010 = 4

011 = 8

100 = 16

101 = 32

110 = 64

111 = 128

Bits 3:0?????? DOR3:0? ADC采集速率設置 最大設置為1001，選擇2000sps

0000 = 5SPS (default)

0001 = 10SPS

0010 = 20SPS

0011 = 40SPS

0100 = 80SPS

0101 = 160SPS

0110 = 320SPS

0111 = 640SPS

1000 = 1000SPS

1001 to 1111 = 2000SPS

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OFC23:0??? ADS1248偏移校準系數(shù)寄存器.

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OFC0—偏移校正系數(shù)寄存器0

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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

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OFC1—偏移校正系數(shù)寄存器1

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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

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OFC2—偏移校正系數(shù)寄存器2

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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

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FSC23:0 滿量程校準系數(shù)寄存器（復位后恢復出廠校準值）.

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FSC0—滿量程校準寄存器0

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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

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FSC1—滿量程校準寄存器1

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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

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FSC2—滿量程校準寄存器2

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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

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IDAC0?可編程電流源控制寄存器?0

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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

只讀只讀，工廠編程位，用于識別修改版本。

Bit 3?????????? DRDY MODE??用于設置DOUT/DRDY輸出數(shù)據(jù)準備就緒狀態(tài)，低電平有效

0 = DOUT/DRDY僅作為數(shù)據(jù)輸出(default)

1 = DOUT/DRDY引腳功能既作為數(shù)據(jù)輸出和數(shù)據(jù)準備，低電平有效

Bits 2:0? IMAG2:0? ?ADS1247/8有兩個可編程電流源DAC可用于傳感器激勵。這幾位控制激勵電流的大小。IDAC要求內(nèi)部基準源必須開啟.

000 = off (default)

001 = 50mA

010 = 100mA

011 = 250mA

100 = 500mA

101 = 750mA

110 = 1000mA

111 = 1500mA

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IDAC1 可編程電流源控制寄存器1

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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

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ADS1247/8有2路IDAC，可以連接到IEXC1，IEXC2或任意模擬輸入。

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Bits 7:4?????? I1DIR3:0 這些位選擇第一電流源DAC輸出引腳。

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 = 關閉(default)

Bits 3:0?????? I2DIR3:0 這些位選擇了第二電流源DAC的輸出引腳

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 = 關閉(default)

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GPIOCFG—GPIO 配置寄存器，用于配置GPIO與模擬輸入引腳復用功能

GPIO0 復用 REFP0

GPIO1 復用 REFN0

GPIO2 復用 AIN2

GPIO3 復用 AIN3

GPIO4復用 AIN4 (ADS1248)

GPIO5復用 AIN5 (ADS1248)

GPIO6復用 AIN6 (ADS1248)

GPIO7復用 AIN7 (ADS1248)

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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與模擬輸入復用設置，注意ADS1248支持所有GPIO，但是ADS1247只支持GPIO1-GPIO3，也就是BIT0-BIT3

0 = 該引腳用作模擬輸入(default)

1 = 該引腳用作 GPIO pin

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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輸出模式 (default)

1 = GPIO ?輸入模式

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GPIODAT—GPIO數(shù)據(jù)寄存器

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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 如果對應GPIO設置為輸出，則寫入對應bit會輸出到相應引腳，如果對應GPIO設置為輸入，則讀取對應bit對應輸入值，注意ADS1248支持所有GPIO，但是ADS1247只支持GPIO1-GPIO3，也就是BIT0-BIT3

SPI 命令

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一些指令是獨立的命令（例如，復位），而另一些則需要額外的字節(jié)（例如，寫命令需要計數(shù)和數(shù)據(jù)字節(jié)）

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操作數(shù)說明:

n =讀寫寄存器的數(shù)量(要讀取的字節(jié) – 1)

r = 寄存器 (0 to 15)

x = 不關心

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SPI 命令列表

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COMMAND TYPE

COMMAND

DESCRIPTION

1st COMMAND BYTE

2nd COMMAND BYTE

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System Control

WAKEUP

退出睡眠模式

0000 000x (00h, 01h)

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SLEEP

進入睡眠模式

0000 001x (02h, 03h)

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SYNC

同步AD轉(zhuǎn)換

0000 010x (04h, 05h)

0000-010x (04,05h)

RESET

復位

0000 011x (06h, 07h)

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NOP

???????????? 空指令

1111 1111 (FFh)

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Data Read

RDATA

讀取數(shù)據(jù)

0001 001x (12h, 13h)

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RDATAC

連續(xù)讀取數(shù)據(jù)

0001 010x (14h, 15h)

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SDATAC

停止讀取數(shù)據(jù)

0001 011x (16h, 17h)

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Read Register

RREG

讀寄存器 rrrr

0010 rrrr (2xh)

0000_nnnn

Write Register

WREG

寫寄存器rrrr

0100 rrrr (4xh)

0000_nnnn

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Calibration

SYSOCAL

系統(tǒng)失調(diào)校準

0110 0000 (60h)

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SYSGCAL

系統(tǒng)增益校準

0110 0001 (61h)

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SELFOCAL

自校正

0110 0010 (62h)

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