树莓派硬件原理图（Pi-3-B）

raspberry

硬件原理图

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D D

C C

B B

A A

~0V

POWER OK

"PWR" LED

STATUS

"ACT" LED

(GPIO_GEN2)

(GPIO_GCLK)

(SCL1)

(SDA1)

(GPIO_GEN0)

(GPIO_GEN3)

(SPI_MOSI)

(SPI_MISO)

(SPI_SCLK)

(TXD0)

(RXD0)

(GPIO_GEN1)

(GPIO_GEN4)

(GPIO_GEN5)

(GPIO_GEN6)

(SPI_CE0_N)

(SPI_CE1_N)

ID_SD and ID_SC PINS:

These pins are reserved for HAT ID EEPROM.

At boot time this I2C interface will be

interrogated to look for an EEPROM

that identifes the attached board and

allows automagic setup of the GPIOs

(and optionally, Linux drivers).

DO NOT USE these pins for anything other

than attaching an I2C ID EEPROM. Leave

unconnected if ID EEPROM not required.

HDMI

CAMERA DISPLAY

GPIO EXPANSION

A/V

RUN

POWER IN

XTAL_N

XTAL_P

PLL_VDD

RUN

SDRAM_LDO_EN

RUN

CAM1_DN0

CAM1_DP0

CAM1_DN1

CAM1_DP1

CAM1_CN

CAM1_CP

SCL0

SDA0

SCL0

SDA0

DSI1_DN1

DSI1_DP1

DSI1_CN

DSI1_CP

DSI1_DN0

DSI1_DP0

GPIO2

GPIO3

GPIO4

GPIO17

GPIO22

GPIO10

GPIO9

GPIO11

GPIO14

GPIO15

GPIO18

GPIO23

GPIO24

GPIO8

GPIO7

ID_SD

GPIO2

GPIO3

ID_SC

GPIO4

GPIO8

GPIO7

GPIO10

GPIO9

GPIO11

GPIO5

GPIO6

GPIO12

GPIO13

GPIO14

GPIO15

GPIO25

GPIO18

GPIO23

GPIO24

GPIO17

GPIO22

GPIO26

GPIO27

GPIO19

GPIO20

GPIO21

GPIO16

GPIO20

GPIO21

GPIO27

GPIO25

ID_SD ID_SC

GPIO5

GPIO6 GPIO12

GPIO13

GPIO19 GPIO16

GPIO26

HDMI_T2P

HDMI_T2N

HDMI_T1P

HDMI_T1N

HDMI_T0P

HDMI_T0N

HDMI_CKP

HDMI_CKN

HDMI_HPD

HDMI_CEC

HDMI_SCL

HDMI_SDA

COMPVID

AUDIO_L

AUDIO_R

AUD_PW M0

AUD_PW M1

3V3

1V8

5V_CORE

VDD_CORE

5V_CORE

1V8

3V3

1V8

VDD_CORE

3V3

VDD_CORE

3V3 3V3

3V3 5V

3V3

H5V

AUD_3V3

RUN

SDRAM_LDO_EN

INT_SCL

INT_SDA

STATUS_LED

PW R_LOW_N

CAM_GPIO0

SCL0

SDA0

CAM_GPIO1

Title

Size Ref

Rev

Date: Sheet of

www.raspberrypi.org

Drawn By

James Adams

RPI-3B 1.2

Raspberry Pi 3 Model B (Reduced Schematics)

1 1Monday, April 04, 2016

Title

Size Ref

Rev

Date: Sheet of

www.raspberrypi.org

Drawn By

James Adams

RPI-3B 1.2

Raspberry Pi 3 Model B (Reduced Schematics)

1 1Monday, April 04, 2016

Title

Size Ref

Rev

Date: Sheet of

www.raspberrypi.org

Drawn By

James Adams

RPI-3B 1.2

Raspberry Pi 3 Model B (Reduced Schematics)

1 1Monday, April 04, 2016

1005

SMBJ5.0A

C59

100n

1005

R67

47K

1005

PP6

R20

470R

1005

PP9

PP2

C10

18p

1005

R16

220R

1005

R69

10K

1005

L1 4.7u

SRN4018-4R7M

U16

RT8088AW SC

PVIN

SW1

PGND

PVIN

SW2

PGND

PVIN

PGND

AVIN

SDA

AGND

SCL

DMG1012T

40W 0.1" PIN HDR

27 28

C67

220n

1005

47151-1051

R60

1.8K

1005

10u

2012

C164

220n

1005

100K

1005

R17

100R

1005

PP26

PP1

C12

1005

MMBT3904T

BCM2837

U1N

PLL_1V8

PLL_VDD_OUT

PLL_VDD

RUN

F18

XOSC_VDD

XTALN

XTALP

AGND_13

W16

AGND_14

W18

R71

18K

1005

PP35

C11

18p

1005

R18

220R

1005

PP7

PP21

PP10

C13

220n

1005

470R

1005

PP4

47u

3216

C163

47u

3216

10103594-0001LF

RT9741CGV

GND

OUT

220n

1005

19.2MHz

PP13

DMG2305UX

2 3

100n

1005

R61

1.8K

1005

1-1734248-5

R68

10K

1005

C65

100n

1005

R24

1.8K

1005

C54

100n

1005

PP5

R23

1.8K

1005

C56

100n

1005

C58

47u

3216

10u

2012

PAM2306AYPKE

VIN2

LX2

GND

FB1

NC1

EN1

VIN1

LX1

GND

FB2

NC2

EN2

PAD

R79 47K

1005 1%

10K

1005

Q3 DMG2305UX

L2 4.7u

SRN4018-4R7M

PP58

10u

2012

C61

100n

1005

10u

2012

C188

220n

1005

MF-MSMF250/X

1 2

U14

BCM857BS

3 4

470R

1005

1-1734248-5

R70

8.2K

1005

C161

1005

470n

C64

100n

1005

APX803-46SAG

GND

RST

VCC

R55

1005

47K

1005

GREEN

1611

DMG1012T

C60

47u

3216

PP8

100n

1005

C162

10u

2012

BCM2837

U1C

GPIO0

GPIO1

B11

GPIO2

GPIO3

GPIO4

GPIO5

GPIO6

GPIO7

GPIO8

GPIO9

B10

GPIO10

GPIO11

GPIO12

GPIO13

GPIO14

GPIO15

GPIO16

GPIO17

GPIO18

GPIO19

GPIO20

GPIO21

GPIO22

GPIO23

GPIO24

GPIO25

GPIO26

GPIO27

VDDIO2_1

VDDIO2_2

PP20

C62

100n

1005

R19

100R

1005

RED

1611

2W PIN HEADER

PP3 R56

1005

C165

100n

1005

10K

1005

U11

NC7WZ16

GND

VCC

PP25

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class Solution { public: ListNode* deleteDuplicates(ListNode* head) { ListNode pi = head; while (pi && pi->next) { if (pi->val == pi->next->val) { ListNode del = pi->next; pi->next = pi->next->next; delete del; } else { pi = pi->next; } } return head; } };解释这段代码

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