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Elecrow GSM/GPRS/EDGE SIM5360E 3G Shield for Arduino
Post 303042894 by Neo on Thursday 9th of January 2020 10:37:09 PM
01-09-2020
Administrator
Update:
Elecrow customer service contacted me and confirmed this device is defective if it cannot read / recognize a local, unlocked, working 3/4G SIM card.
They also confirmed that all of their boards should ship with the required jumpers, and they kindly apologized that this one did not come with the required jumpers (not a "big deal" but of course, their quality control team should insure this does not happen).
Elecrow also kindly refunded the cost of this device and mentioned to me they would let me know when an updated version is ready and offered to send the updated version to me when available, so I can retest.
When I get the time, I will send this device back to Elecrow so they can run their own tests on it; or I will try to find time to work with Elecrow engineers to debug this device (from here) when I get back to this project in a few weeks.
For now, I'm moving on to other "mail bag" project ....
Elecrow customer service contacted me and confirmed this device is defective if it cannot read / recognize a local, unlocked, working 3/4G SIM card.
They also confirmed that all of their boards should ship with the required jumpers, and they kindly apologized that this one did not come with the required jumpers (not a "big deal" but of course, their quality control team should insure this does not happen).
Elecrow also kindly refunded the cost of this device and mentioned to me they would let me know when an updated version is ready and offered to send the updated version to me when available, so I can retest.
When I get the time, I will send this device back to Elecrow so they can run their own tests on it; or I will try to find time to work with Elecrow engineers to debug this device (from here) when I get back to this project in a few weeks.
For now, I'm moving on to other "mail bag" project ....
This User Gave Thanks to Neo For This Post:
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LEARN ABOUT DEBIAN
rc
RC(4) BSD Kernel Interfaces Manual RC(4) NAME
rc -- RISCom/8 multiport card SYNOPSIS
device isa device rc DESCRIPTION
The RISCom/8 is an eight port ISA RS-232C communications multiplexer with a built in RISC processor. It uses a block of sixteen I/O ports in the range 0x200 to 0x3f0 selectable by on-board switches or jumpers. The block must be aligned on a sixteen port boundary. The jumper- selectable hardware interrupt level may be set to be detected during system initialization using settings found in the /boot/device.hints file. This driver is mostly based on the Cirrus Logic CL-CD180 driver. HARDWARE
The rc driver provides support for the SDL Communications RISCom/8 boards. DIAGNOSTICS
The following driver specific error messages may be reported: rc%d channel%d: interrupt-level buffer overflow An internal buffer overflow error has occurred on the listed channel. The rc driver will need to be reloaded to correct this. rc%d: Bad char chan %d The channel has obtained a bad set of characters. rc%d: Got extra chars chan %d The rc driver got more characters than expected on the channel shown. rc%d: data mismatch chan %d ptr %d (%d != %d) Data sent from channel %d to the rx buffer was different then expected. rc%d: channel %d command timeout, rc.c line: %d A command timeout has occurred on the channel, the src/sys/dev/rc/rc.c file can be consulted for more information. SEE ALSO
tty(1), ttyname(3), sio(4), tty(4), device.hints(5), comcontrol(8), getty(8), mutex(9), splx(9) http://www.sdlcomm.com HISTORY
The rc driver first appeared in FreeBSD 2.0.5. This manual page first appeared in FreeBSD 5.3. AUTHORS
This manual page was written by Tom Rhodes <trhodes@FreeBSD.org>. BUGS
The rc driver code still uses the spl(9) functions. These should be replaced by mutex(9) functions. The various ttyld_*() functions should be documented. BSD
March 18, 2005 BSD