View source for AOM-DB3500 M.2 B Key——4G/5G


=== '''AOM-3821 supports three PCIE ports.'''&nbsp;<br/> Using the PCIE disk (SQF-C8BV2-128G-EDE) to test the M.2_B-Key PCIE interface.<br/> Using the WIFI module (EWM-W179M201E) to test the M.2_E-Key PCIE interface.<br/> Using NVMe (UGREEN KB-SA0093-A1 + JZ-SSD256G-5) to test PCIEX4 interface. ===

=== '''M.2_B Key Pin define''' ===

{| border="1" cellpadding="1" cellspacing="1" style="width: 879px;"
|-
| colspan="4" style="width: 869px;" | '''M.2_B&nbsp; M.2_B Connector Pin Definition'''
|-
| style="width: 47px;" | '''Pin'''
| style="width: 130px;" | '''Signal&nbsp;'''
| style="width: 35px;" | '''1/O'''
| style="width: 620px;" | '''Description'''
|-
| style="width: 47px;" | 1
| style="width: 130px;" | GND(Default NC)
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Ground
|-
| style="width: 47px;" | 2
| style="width: 130px;" | +V3.3B_M.2
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | 3.3V source
|-
| style="width: 47px;" | 3
| style="width: 130px;" | GND
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Ground
|-
| style="width: 47px;" | 4
| style="width: 130px;" | +V3.3B_M.2
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | 3.3V source
|-
| style="width: 47px;" | 5
| style="width: 130px;" | GND
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Ground
|-
| style="width: 47px;" | 6
| style="width: 130px;" | BKEY_PWR_Z_OFF
| style="width: 35px;" | I
| style="width: 620px;" | Active Low. A single control to turn Off WWAN solution
|-
| style="width: 47px;" | 7
| style="width: 130px;" | BKEY_USB_D+
| style="width: 35px;" | O
| style="width: 620px;" | USB Data + Differential Signal.
|-
| style="width: 47px;" | 8
| style="width: 130px;" | BKEY_W_DISABLE1#
| style="width: 35px;" | O
| style="width: 620px;" | Aactive Low,when applied by the system it will disable radio operation on the Adapter that implement radio frequency applications.
|-
| style="width: 47px;" | 9
| style="width: 130px;" | BKEY_USB_D-
| style="width: 35px;" | I/O
| style="width: 620px;" | USB Data - Differential Signal.
|-
| style="width: 47px;" | 10
| style="width: 130px;" | LED1#_M2_B
| style="width: 35px;" | O
| style="width: 620px;" | The Adapters’ status indicators via LED devices.
|-
| style="width: 47px;" | 11
| style="width: 130px;" | GND
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Ground
|-
| style="width: 47px;" | 12-19
| style="width: 130px;" | Moudle Key
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Moudle Key
|-
| style="width: 47px;" | 20
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 21
| style="width: 130px;" | GND
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Ground
|-
| style="width: 47px;" | 22
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 23
| style="width: 130px;" | BKEY_WOWWAN#_GPIO
| style="width: 35px;" | O
| style="width: 620px;" | Used to wake the Platform by the WWAN device
|-
| style="width: 47px;" | 24
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 25
| style="width: 130px;" | BKEY_DPR_1.8
| style="width: 35px;" | O
| style="width: 620px;" | This signal is an input directly to the WWAN Adapter from a suitable SAR sensor.
|-
| style="width: 47px;" | 26
| style="width: 130px;" | BKEY_W_DISABLE2#
| style="width: 35px;" | O
| style="width: 620px;" | Aactive Low,when applied by the system it will disable radio operation on the Adapter that implement radio frequency applications.
|-
| style="width: 47px;" | 27
| style="width: 130px;" | GND
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Ground
|-
| style="width: 47px;" | 28
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 29
| style="width: 130px;" | BKEY_USB3.0_RX-
| style="width: 35px;" | I/O
| style="width: 620px;" | USB3.0 RX - Differential signal.
|-
| style="width: 47px;" | 30
| style="width: 130px;" | UIM_RESET
| style="width: 35px;" | I
| style="width: 620px;" | UIM reset signal.
|-
| style="width: 47px;" | 31
| style="width: 130px;" | BKEY_USB3.0_RX+
| style="width: 35px;" | I/O
| style="width: 620px;" | USB3.0 RX+ Differential signal.
|-
| style="width: 47px;" | 32
| style="width: 130px;" | UIM_CLK
| style="width: 35px;" | I
| style="width: 620px;" | UIM clock signal.
|-
| style="width: 47px;" | 33
| style="width: 130px;" | GND
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Ground
|-
| style="width: 47px;" | 34
| style="width: 130px;" | UIM_DATA
| style="width: 35px;" | I/O
| style="width: 620px;" | UIM data signal.
|-
| style="width: 47px;" | 35
| style="width: 130px;" | BKEY_USB3.0_TX-
| style="width: 35px;" | I/O
| style="width: 620px;" | USB3.0 TX - Differential signal.
|-
| style="width: 47px;" | 36
| style="width: 130px;" | UIM_VCC
| style="width: 35px;" | I
| style="width: 620px;" | Power source for the UIM.
|-
| style="width: 47px;" | 37
| style="width: 130px;" | BKEY_USB3.0_TX+
| style="width: 35px;" | I/O
| style="width: 620px;" | USB3.0 TX + Differential signal.
|-
| style="width: 47px;" | 38
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 39
| style="width: 130px;" | GND
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Ground
|-
| style="width: 47px;" | 40
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 41
| style="width: 130px;" | BKEY_PERN0
| style="width: 35px;" | O
| style="width: 620px;" | PCIe RX - Differential signal.
|-
| style="width: 47px;" | 42
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 43
| style="width: 130px;" | BKEY_PERP0
| style="width: 35px;" | O
| style="width: 620px;" | PCIe RX + Differential signal.
|-
| style="width: 47px;" | 44
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 45
| style="width: 130px;" | GND
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Ground
|-
| style="width: 47px;" | 46
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 47
| style="width: 130px;" | BKEY_PETN0
| style="width: 35px;" | I
| style="width: 620px;" | PCIe TX - Differential signal.
|-
| style="width: 47px;" | 48
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 49
| style="width: 130px;" | BKEY_PETP0
| style="width: 35px;" | I
| style="width: 620px;" | PCIe TX + Differential signal.
|-
| style="width: 47px;" | 50
| style="width: 130px;" | BKEY_PERST#
| style="width: 35px;" | I
| style="width: 620px;" | Active Low.PCIe Reset is a functional reset to the card.
|-
| style="width: 47px;" | 51
| style="width: 130px;" | GND
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Ground
|-
| style="width: 47px;" | 52
| style="width: 130px;" | BKEY_CLKREQ#
| style="width: 35px;" | I/O
| style="width: 620px;" | Active Low.PCIe Clock Request is a reference clock request signal.
|-
| style="width: 47px;" | 53
| style="width: 130px;" | BKEY_PCIE_CLK-
| style="width: 35px;" | I
| style="width: 620px;" | PCIe Reference Clock signals (100 MHz)
|-
| style="width: 47px;" | 54
| style="width: 130px;" | BKEY_PEWAKE#
| style="width: 35px;" | I/O
| style="width: 620px;" | 
Active Low.&nbsp;When the Adapter supports wakeup, this signal is used to request that the system return from asleep/suspend state to service a&nbsp; function-initiated wake event.

|-
| style="width: 47px;" | 55
| style="width: 130px;" | BKEY_PCIE_CLK+
| style="width: 35px;" | I
| style="width: 620px;" | PCIe Reference Clock signals (100 MHz)
|-
| style="width: 47px;" | 56
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 57
| style="width: 130px;" | GND
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Ground
|-
| style="width: 47px;" | 58
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 59
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 60
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 61
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 62
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 63
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 64
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 65
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 66
| style="width: 130px;" | N/A
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Not Applicable
|-
| style="width: 47px;" | 67
| style="width: 130px;" | BKEY_RESET#
| style="width: 35px;" | I
| style="width: 620px;" | Active Low.The single control to Reset the WWAN solution.
|-
| style="width: 47px;" | 68
| style="width: 130px;" | BKEY_CLK
| style="width: 35px;" | I
| style="width: 620px;" | 32.768 kHz clock supply input that is provided by the Platform chipset to reduce power and cost for the Adapter.
|-
| style="width: 47px;" | 69
| style="width: 130px;" | GND(Default NC)
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Ground
|-
| style="width: 47px;" | 70
| style="width: 130px;" | +V3.3B_M.2
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | 3.3 V source
|-
| style="width: 47px;" | 71
| style="width: 130px;" | GND
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Ground
|-
| style="width: 47px;" | 72
| style="width: 130px;" | +V3.3B_M.2
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | 3.3 V source
|-
| style="width: 47px;" | 73
| style="width: 130px;" | GND
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Ground
|-
| style="width: 47px;" | 74
| style="width: 130px;" | +V3.3B_M.2
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | 3.3 V source
|-
| style="width: 47px;" | 75
| style="width: 130px;" | GND(Default NC)
| style="width: 35px;" | &nbsp;
| style="width: 620px;" | Ground
|}

[[File:AOM-DB3500 M.2 B key.png|RTENOTITLE]][[File:AOM-DB3500 M.2 B key pin define.png|RTENOTITLE]]

=== '''J10 M.2_B Power Setting''' ===

{| border="1" cellpadding="1" cellspacing="1" style="width: 500px;"
|-
| '''Pin'''
| '''Function'''
|-
| J10（1-2）
| M.2_B power 3.3V (Default)
|-
| J10（2-3）
| M.2_B power 3.8V
|}

[[File:AOM-DB3500 J10.png|600x300px|AOM-DB3500 J10.png]]

&nbsp;

=== '''4G/5G''' ===

'''AOM-3821 supports EM05CNFD-128-SGAS and RM520NGLAA.'''

'''STEP 1:''' Power on the device, Click network connection icon then choose "New Mobile Broadband connection".

[[File:AFE-E630 4G EC20 1.png|RTENOTITLE]]

[[File:AFE-E630 4G EC20 2.png|RTENOTITLE]]

&nbsp;

then you will see the following window, click "Next" button to the next step.

[[File:RK3288 Debian 4G setup.png|550px|RTENOTITLE]]

'''STEP 2&nbsp;:''' Choose Provider's country or region of the SIM card you insert in STEP 0.

[[File:RK3288 Debian 4G Provider Country.png|550px|RTENOTITLE]]

'''STEP 3&nbsp;:''' Choose or Set the Provider's name.

[[File:ROM-6881 4G Providers name.png|550x300px|ROM-6881 4G Providers name.png]]

'''STEP 4&nbsp;: '''Choose or Set APN.

[[File:ROM-6881 4G APN.png|550x300px|ROM-6881 4G APN.png]]

'''STEP 5&nbsp;: '''Confirm your configuration and finish.

[[File:ROM-6881 4G finish.png|550x300px|ROM-6881 4G finish.png]]

After connection, 4Gwill create a net point “wwan0”

[[File:AFE-E630 4G EC20 3.png|RTENOTITLE]]
<pre># ping –I wwan0 www.advantech.com</pre>

=== '''M.2_B-KEY PCIE TEST Preparation:''' ===

*'''List disk information''' 
<pre># fdisk -l /dev/nvme0n1
Disk /dev/nvme0n1: 119.24 GiB, 128035676160 bytes, 250069680 sectors 
Disk model: SQF-C3AV1-128GDEDE
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x217a69bc

Device         Boot Start  End   Sectors   Size Id Type
/dev/nvme0n1p1 2048    250069679 250067632 119.2G 83 Linux
</pre>

*'''Check mount point''' 
<pre># mount | grep nvme
/dev/nvme0n1p1 on /run/media/nvme0n1p1 type ext4 (rw,relatime)
</pre>

*'''Speed Test''' 

&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; – Read Speed
<pre># echo 3 > /proc/sys/vm/drop_caches
# dd if=/dev/nvme0n1 of=/dev/zero bs=1M count=400
400+0 records in
400+0 records out
419430400 bytes (419 MB, 400 MiB) copied, 0.728982 s, 575 MB/s</pre>

&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;– Write Speed
<pre># echo 3 > /proc/sys/vm/drop_caches
# dd if=/dev/zero of=/dev/nvme0n1 bs=1M count=400
400+0 records in
400+0 records out
419430400 bytes (419 MB, 400 MiB) copied, 0.915896 s, 458 MB/s</pre>