uC in Orbic RC400L and datasheet?

[garyn87048]

Hi!

What uC is in the Orbic RC400L or, if there are a variety, how do I determine which one is in mine?

A link to the datasheets, please! I looked for Qualcomm MDM9x07 and MDM9650 (rumored these were the uCs) but did not find either.

THANK YOU!!

Gary

[stu-spp]

The EMI shield is soldered, so I haven't inspected the actual chip package yet, but I believe it's an mdm9607. Here is some on target information:

uname:

bash-4.3$ uname -a
Linux mdm9607 3.18.48 #1 PREEMPT Thu Oct 8 21:40:29 CST 2020 armv7l GNU/Linux
bash-4.3$

cpuinfo:

bash-4.3$ cat /proc/cpuinfo
processor	: 0
model name	: ARMv7 Processor rev 5 (v7l)
BogoMIPS	: 38.40
Features	: half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae
CPU implementer	: 0x41
CPU architecture: 7
CPU variant	: 0x0
CPU part	: 0xc07
CPU revision	: 5

Hardware	: Qualcomm Technologies, Inc MDM9207
Revision	: 0000
Serial		: 0000000000000000
Processor	: ARMv7 Processor rev 5 (v7l)
bash-4.3$

various procfs / sysfs:

bash-4.3$ hexdump -C /proc/device-tree/compatible
00000000  71 63 6f 6d 2c 6d 64 6d  39 36 30 37 2d 6d 74 70  |qcom,mdm9607-mtp|
00000010  00 71 63 6f 6d 2c 6d 64  6d 39 36 30 37 00 71 63  |.qcom,mdm9607.qc|
00000020  6f 6d 2c 6d 74 70 00                              |om,mtp.|
00000027
bash-4.3$ hexdump -C /proc/device-tree/model
00000000  51 75 61 6c 63 6f 6d 6d  20 54 65 63 68 6e 6f 6c  |Qualcomm Technol|
00000010  6f 67 69 65 73 2c 20 49  6e 63 2e 20 4d 44 4d 20  |ogies, Inc. MDM |
00000020  39 36 30 37 20 4d 54 50  00                       |9607 MTP.|
00000029
bash-4.3$ hexdump -C /sys/devices/soc0/soc_id
00000000  32 39 37 0a                                       |297.|
00000004
bash-4.3$ hexdump -C /sys/devices/soc0/image_variant
00000000  4c 41 41 54 41 4e 41 5a  41 0a                    |LAATANAZA.|
0000000a
bash-4.3$ hexdump -C /sys/devices/soc0/machine
00000000  4d 44 4d 39 32 30 37 0a                           |MDM9207.|
00000008
bash-4.3$ hexdump -C /sys/devices/soc0/build_id
00000000  39 78 30 37 41 2d 4c 41  41 54 41 4e 41 5a 41 2d  |9x07A-LAATANAZA-|
00000010  34 30 30 30 30 30 30 30  0a                       |40000000.|
00000019
bash-4.3

Official datasheets are under NDA, but the pinephone device tree can serve as a functional datasheet:

https://osmocom.org/projects/quectel-modems/wiki/Pine64_Pinephone

[garyn87048]

thank you!

[untitaker]

it's a mdm9207 and I believe the FCC report would contain this information

EDIT here are internal photos https://fcc.report/FCC-ID/2ABGH-RC400L/4714662

[garyn87048]

wow! Nice teardown! And, thank you too!