Difference between revisions of "ASR-A501 PCIE M.2 E Key"

Revision as of 09:37, 5 June 2025

HW Pin define：

SW Function：

ASR-A501 supports two PCIE ports. Using the PCIE disk (SQF-C8BV2-128GEDE)to test the M.2_B-KEY PCIE interface.

Using the WIFI module (EWM-W179M201E)Wi-Fi functionality to test the M.2_E-KEY PCIE interface.

SQF-C8BV2-128GEDE——Bom Option

List disk information

# fdisk -l /dev/nvme0n1
Disk /dev/nvme0n1: 119.24 GiB, 128035676160 bytes, 250069680 sectors 
Disk model: SQF-C8BV2-128GEDE
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

Check mount point

# mount | grep nvme
/dev/nvme0n1p1 on /run/media/nvme0n1p1 type ext4 (rw,relatime)

Speed Test

 – Read Speed

# 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

 – Write Speed

# 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

EWM-W179M201E——WIFI/BT

WIFI：