查看“MYZR-I.MX8Mmini hardware introduction”的源代码

=='''Interface overview'''==
----
=='''Front view'''==
[[File:IMX8MM-EK240frontB.png|1000px]]

='''Back view'''=
[[File:IMX8MM-EK240backB.png|1000px]]

=='''Dimensional drawing '''==
                       [[File: MYZR-I.MX8Mmini-CB240size.PNG|642px]]


='''Interface function'''=
----
=='''WIFI/BT antenna'''==
Silkscreen: ANT
Pins and signals are defined as follows:
[[File:8mmANT.PNG|642px]]

=='''TF card'''==
Silkscreen: J10
Pins and signals are defined as follows:

[[File:TF_CARD.PNG|642px]]

=='''Debug serial port'''==
Silkscreen: J12
Pins and signals are defined as follows:
[[File:DEBUG_SERIAL8mm.PNG|642px]]

{| class="wikitable"
|-
!Pin used || Function
|-
!UART4_TXD || MCU debug serial port data output
|-
!UART2_TXD || CPU debug serial port data output
|-
!UART4_RXD || MCU debug serial port data reception
|-
!UART2_RXD || CPU debug serial port data reception
|}


=='''MIPI_DSI interface'''==
Silkscreen: J2
The pins and signals are defined as follows:
[[File:imx8mmMIPI_DSI.PNG|642px]]

{| class="wikitable"
|-
!Pin || signal || description || pin || signal || description

|-
!J2-1 ||rowspan=3 | DCDC_5V || rowspan=3 |5V output || J2-16 || DSI_DN0 || DSI differential data 0
|-
!J2-2 || J2-17 || GND || Digital Ground
|-
!J2-3 || J2-18 || DSI_CKP || DSI differential clock
|-
!J2-4 ||rowspan=2| VDD_3V3 ||rowspan=2| 3.3V output || J2-19 || DSI_CKN || DSI differential clock
|-
!J2-5 || J2-20 || GND || Digital ground
|-
! J2-6 ||rowspan=2| VDD_1V8 ||rowspan=2| 1.8V output || J2-21 || DSI_DP1 || DSI differential data 1
|-
! J2-7 || J2-22 || DSI_DN1 || DSI differential data 1
|-
! J2-8 || SDIO_WAKE || GPIO control || J2-23 || GND || Digital ground
|-
! J2-9 || DSI_EN || GPIO control || J2-24 || DSI_DP3 || DSI differential data 3
|-
! J2-10 || DSI_BL_PWM || GPIO control || J2-25 || DSI_DN3 || DSI differential data 3
|-
! J2-11 || GND || Digital Ground || J2-26 || GND || Digital Ground
|-
! J2-12 || DSI_DP2 || DSI differential data 2 || J2-27 || I2C3_SCL || Touch I2C signal
|-
! J2-13 || DSI_DN2 || DSI differential data 2 || J2-28 || I2C3_SDA || Touch I2C signal
|-
! J2-14 || GND || Digital ground || J2-29 || DSI_TS_nINT || GPIO control
|-
! J2-15 || DSI_DP0 || DSI differential data 0 || J2-30 || DSI_TS_nRST || GPIO control
|}






=='''MIPI_CSI interface'''==
Silkscreen: J1
Pins and signals are defined as follows:
[[File:8mmMIPI CSI.PNG|642px]]

{| class="wikitable"

|-
! Pin || Signal || Description || Pin || Signal || Description
|-
! J3-1 || DCDC_5V || 5V input || J3-16 || CSI_P1_DP3 || CSI differential data 3
|-
! J3-2 || --- || --- || J3-17 || CSI_P1_DN3 || CSI differential data 3
|-
! J3-3 || VDD_1V8 || 1.8V input || J3-18 || GND || Digital ground
|-
! J3-4 || --- || --- || J3-19 || CSI_P1_DP2 || CSI differential data 2
|-
! J3-5 || VDD_3V3 || 3.3V input || J3-20 || CSI_P1_DN2 || CSI differential data 2
|-
! J3-6 || --- || --- || J3-21 || GND || Digital Ground
|-
! J3-7 || GND || Digital ground || J3-22 || CSI_P1_DP1 || CSI differential data 1
|-
! J3-8 || GND || Digital ground || J3-23 || CSI_P1_DN1 || CSI differential data 1
|-
! J3-9 || I2C1_SDA_1V8 || I2C signal, 1.8V || J3-24 || GND || Digital ground
|-
! J3-10 || I2C1_SCL_1V8 || I2C signal, 1.8V || J3-25 || CSI_P1_CKP || CSI differential clock
|-
! J3-11 || CSI_nRST || GPIO control || J3-26 || CSI_P1_CKN || CSI differential clock
|-
! J3-12 || CSI_P1_PWDN || GPIO control || J3-27 || GND || Digital ground
|-
! J3-13 || GND || Digital ground || J3-28 || CSI_P1_DP0 || CSI differential data 0
|-
! J3-14 || CSI1_CLK || CSI clock || J3-29 || CSI_P1_DN0 || CSI differential data 0
|-
! J3-15 || GND || Digital Ground || J3-30 || GND || Digital Ground
|}
Pins and signals are defined as follows:


==''' MINI_PCIe/4G&SIM card'''==
{| class="wikitable"
|-
! Name || Silkscreen || Interface attributes
|-
! mini-PCIE/4G || J6 || miniPCIE standard interface, PCIe 2.0 standard, support 4G module
|-
! SIM card holder || CON1 || 4G SIM card holder
|}

Pins and signals are defined as follows:
[[File:MINI_PCIe4G.PNG|642px]]

{| class="wikitable"

!Pin || signal || description || pin || signal || description
|-
!J6-1 || SD2_WP || GPIO control || J6-2 || 3.3V_1 || 3.3V power supply
|-
!J6-3 || NC || --- || J6-4 || GND7 || GND
|-
!J6-5 || NC || --- || J6-6 || 1.5V_1 || 1.5V power supply
|-
!J6-7 || PCIE2_nCLKREQ || PCIE clock request || J6-8 || PCIe_UIM_PWR || PCIe_UIM_PWR
|-
!J6-9 || GND1 || GND || J6-10 || PCIe_UIM_DATA || PCIe_UIM_DATA
|-
!J6-11 || PCIE2_REF_CLKN_CN || PCIE reference clock || J6-12 || PCI3_UIM_CLK || PCI3_UIM_CLK
|-
!J6-13 || PCIE2_REF_CLKP_CN || PCIE reference clock || J6-14 || PCIe_UIM_RST || PCIe_UIM_RST
|-
!J6-15 || GND2 || GND || J6-16 || PCIe_UIM_VPP || PCIe_UIM_VPP
|-
!J6-17 || NC || --- || J6-18 || GND8 || GND
|-
!J6-19 || NC || --- || J6-20 || PCIe_nDIS || PCIE prohibition control
|-
!J6-21 || GND3 || GND || J6-22 || PCIe_nRST || PCIE total
|-
!J6-23 || PCIE_RXN || PCIE data receiving || J6-24 || +3.3Vaux || 3.3V power supply
|-
!J6-25 || PCIE_RXP || PCIE data receiving || J6-26 || GND9 || GND
|-
!J6-27 || GND4 || GND || J6-28 || 1.5V_2 || 1.5V power supply
|-
!J6-29 || GND5 || GND || J6-30 || I2C2_SCL_3V3 || I2C signal
|-
!J6-31 || PCIE_TXN || PCIE data output || J6-32 || I2C2_SDA_3V3 || I2C signal
|-
!J6-33 || PCIE_TXP || PCIE data output || J6-34 || GND10 || GND
|-
!J6-35 || GND6 || GND || J6-36 || 4G_USBDM || USB differential signal
|-
!J6-37 || Reserved3 || connect to GND || J6-38 || 4G_USBDP || USB differential signal
|-
!J6-39 || Reserved4 || connect to 3.3V || J6-40 || GND11 || GND
|-
!J6-41 || Reserved5 || connect to 3.3V || J6-42 || LED_WWAN_B || LED indicator
|-
!J6-43 || Reserved6 || connect to GND || J6-44 || LED_WLAN_B || LED indicator
|-
!J6-45 || Reserved7 || NC || J6-46 || LED_WPAN_B || LED indicator
|-
!J6-47 || Reserved8 || NC || J6-48 || 1.5V_3 || 1.5V power supply
|-
!J6-49 || Reserved9 || NC || J6-50 || GND12 || GND
|-
!J6-51 || Reserved10 || NC || J6-52 || 3.3V_2 || 3.3V power supply
    
|}


=='''Audio interface'''==
Silkscreen: P4
Pins and signals are defined as follows:
[[File:8mmAudio.PNG|642px]]

{| class="wikitable"
! Pin used ||Function
|-
! SAI3_MCLK ||Master clock
|-
! SAI3_TXC ||Digital Audio Bit Clock
|-
! SAI3_TXFS ||Digital audio left/right clock
|-
! SAI3_TXD ||Digital audio data output
|-
! AUD_nMUTE ||Mute enable
|}

=='''BOOT MODE switch'''==
Silkscreen: SW2
Pins and signals are defined as follows:

[[File:8mmBOOT MODE.png|642px]]

{| class="wikitable"
|-
! Mode control || 1 bit || 2 bit
|-
! Programming mode || 0 || 1
|-
! Start mode || 1 || 0
|}
=='''Reset switch'''==
Silkscreen: SW1
Function: Press to reset
Pins and signals are defined as follows:
[[File:8mmRESET.PNG|642px]]


=='''Extended IO interface'''==
Silkscreen: J7
Pins and signals are defined as follows:
[[File:8mmEXP CN.PNG|642px]]


{| class="wikitable"
|-
! Pin || Signal || Pin || Signal
|-
! J7-1 || rowspan=2|VSYS || J7-2 || UART3_RXD
|-
! J7-3 || J7-4 || UART3_TXD
|-
! J7-5 || WL_REG_ON || J7-6 || UART1_RXD
|-
! J7-7 || SD1_STROBE || J7-8 || UART1_TXD
|-
! J7-9 || SD1_DATA2 || J7-10 || I2C4_SDA
|-
! J7-11 || SD1_DATA3 || J7-12 || ECSPI2_MOSI
|-
! J7-13 || BT_REG_ON || J7-14 || ECSPI2_MISO
|-
! J7-15 || GPIO1_IO08 || J7-16 || ECSPI2_SS0
|-
! J7-17 || SD1_CMD || J7-18 || ECSPI2_SCLK
|-
! J7-19 || SD1_CLK || J7-20 || rowspan=2|3.3V
|-
! J7-21 || BT_WAKE_HOST || J7-22
|-
! J7-23 || WL_WAKE_HOST || J7-24 || JTAG_nTRST
|-
! J7-25 || SD1_DATA0 || J7-26 || JTAG_TDO
|-
! J7-27 || SD1_DATA1 || J7-28 || JTAG_TDI
|-
! J7-29 || QSPIA_DATA2 || J7-30 || JTAG_TCK
|-
! J7-31 || QSPIA_DATA1 || J7-32 || JTAG_TMS
|-
! J7-33 || QSPIA_nSS0 || J7-34 || rowspan=4|5V
|-
! J7-35 || QSPIA_DATA3 || J7-36
|-
! J7-37 || GND || J7-38
|-
! J7-39 || QSPIA_SCLK || J7-40
|-
! J7-41 || GND || J7-42 || EXP_IO8
|-
! J7-43 || QSPIA_DATA0 || J7-44 || EXP_IO9
|-
! J7-45 || I2C1_SCL || J7-46 || EXP_IO10
|-
! J7-47 || I2C1_SDA || J7-48 || EXP_IO11
|-
! J7-49 || GND || J7-50 || EXP_IO12
|-
! J7-51 || GND || J7-52 || EXP_IO13
|-
! J7-53 || NC || J7-54 || EXP_IO14
|-
! J7-55 || NC || J12-56 || rowspan=12|GND
|-
! J7-57 || PGOOD || J12-58
|-
! J7-59 || PWM2 || J12-60
|-
! J7-61 || PWM4 || J12-62
|-
! J7-63 || GND || J12-64
|-
! J7-65 || WDOG_B || J12-66
|-
! J7-67 || REF_CLK_32K || J12-68
|-
! J7-69 || GND || J12-70
|-
! J7-71 || GND || J12-72
|-
! J7-73 || SAI5_RXC || J12-74
|-
! J7-75 || SAI5_RXD0 || J12-76
|-
! J7-77 || SAI5_RXD1 || J12-78
|-
! J7-79 || SAI5_RXD2 || J12-80 || SAI5_RXD3

|}


=='''Main power switch'''==
Silkscreen: SW3
Pins and signals are defined as follows:

[[File:8mmPOWER SW.PNG|642px]]

Main power input
Silkscreen: J11
Interface attributes: internal positive and external negative jacks, 12V voltage
Pins and signals are defined as follows:
[[File:8mmPOWER IN.PNG|642px]]


=='''Bootloader interface'''==
Silkscreen: J3
Pins and signals are defined as follows:
[[File:8mmBOOTLOADER.PNG|642px]]

{| class="wikitable"
|-
! Pin used || Function
|-
! USB1_VBUS || VBUS detection
|-
! USB1_DN || USB differential data
|-
! USB1_DP || USB differential data
|-
! USB1_ID || NC

|}
=='''USB extended serial port RS-485&RS-232'''==
Silkscreen: J4
Pins and signals are defined as follows:
[[File:8mmUART.PNG|642px]]

{| class="wikitable"
|-
! Pin || Signal || Pin || Signal
|-
! RS232_TX1 || RS-232 signal output || RS232_RX1 || RS-232 signal receiving
|-
! RS232_TX2 || RS-232 signal output || RS232_RX2 || RS-233 signal receiving
|-
! RS482_A1 || RS-485 differential signal + || RS482_B1 || RS-485 differential signal-
|-
! RS482_A2 || RS-485 differential signal + || RS482_B2 || RS-485 differential signal-

|}





=='''USB extension USB HOST'''==
Silkscreen: J5
Interface attributes: USB2 extended USB2.0
Pins and signals are defined as follows:
[[File:8mmUSB.PNG|642px]]

=='''Ethernet interface'''==
Silkscreen: J9
Interface attributes: RGMII, support 10/100/1000M
引脚及信号定义如下：
[[文件:8mmETH.PNG|642px]]