Here is the BC95 AT Commands Manual I am working with; but frankly speaking I am having trouble setting many of the commands to return data. I'm wondering if some of the functionality of the chip has been disabled?
Here are a few photos I took today.
The actual shield I am using for testing:
The actual shield I am using for testing showing Arduino underneath the shield:
dear experts
i want to install java install shield on solaris
but first i want to read more information and help about it
can anyone gives me some links or guids that helps me (0 Replies)
In my further exploration of Arduino, today I decided to install the arduino-cli on my mac today.
https://github.com/arduino/arduino-cli
I followed the instructions for macOS but when I got to this part:
arduino-cli board list
I got the dreaded "Unknown" Fully Qualified Board Name... (1 Reply)
Just finished a quick Python script to send the current unix time over to the Arduino from macOS, so in the absence of GPS or some other way to get the unix timestamp (epoch time) to the Arduino, I can get my macOS and Arduino UNO synced to within a second.
Normally, when the Arduino starts... (9 Replies)
My favorite projects are always related to the "latest" tech in command and control, networking and network communications. This Elecrow GSM/GPRS/EDGE SIM5360E 3G Shield seems to be the "latest and the greatest" as far as 3G and GPS, as far as I can see so far, but I has it drawbacks for sure.... (6 Replies)
Normally I have very good experiences buying from AliExpress, but in this case with Elecrow, I'm disappointed.
After confirming with Elecrow on AliExpress that their Elecrow GSM/GPRS/EDGE SIM5360E 3G Shield for Arduino would work with 3G SIM cards in Thailand, I purchased one. My plan was to... (1 Reply)
This post describes a "work in progress" project I started today. Here is the High Level Overview:
Currently, this project sits on my desk as an Arduino UNO (on the bottom), an NB-IoT Shield (sandwiched in the middle), a Sensor Shield (on top) with a HM-10 BLE Module (in the little... (13 Replies)
Discussion started by: Neo
13 Replies
LEARN ABOUT NETBSD
hifn
HIFN(4) BSD Kernel Interfaces Manual HIFN(4)NAME
hifn -- Hifn 7751/7951/7811/7955/7956 crypto accelerator
SYNOPSIS
hifn* at pci? dev ? function ?
DESCRIPTION
The hifn driver supports various cards containing the Hifn 7751, 7951, 7811, 7955, and 7956 chipsets, such as
Invertex AEON No longer being made. Came as 128KB SRAM model, or 2MB DRAM model.
Hifn 7751 Reference board with 512KB SRAM.
PowerCrypt See http://www.powercrypt.com/. Comes with 512KB SRAM.
XL-Crypt See http://www.powercrypt.com/. Only board based on 7811 (which is faster than 7751 and has a random number genera-
tor).
NetSec 7751 See http://www.netsec.net/. Supports the most IPsec sessions, with 1MB SRAM.
Soekris Engineering vpn1201 and vpn1211
See http://www.soekris.com/. Contains a 7951 and supports symmetric and random number operations.
Soekris Engineering vpn1401 and vpn1411
See http://www.soekris.com/. Contains a 7955 and supports symmetric and random number operations.
The hifn driver registers itself to accelerate DES, Triple-DES, AES (7955 and 7956 only), ARC4, MD5, MD5-HMAC, SHA1, and SHA1-HMAC operations
for opencrypto(9), and thus for fast_ipsec(4) and crypto(4).
The Hifn 7951, 7811, 7955, and 7956 may also supply data to the kernel rnd(4) subsystem.
SEE ALSO crypto(4), fast_ipsec(4), intro(4), rnd(4), opencrypto(9)HISTORY
The hifn device driver appeared in OpenBSD 2.7. The hifn device driver was imported to FreeBSD 5.0, back-ported to FreeBSD 4.8, and subse-
quently imported into NetBSD 2.0.
CAVEATS
The Hifn 9751 shares the same PCI ID. This chip is basically a 7751, but with the cryptographic functions missing. Instead, the 9751 is
only capable of doing compression. Since we do not currently attempt to use any of these chips to do compression, the 9751-based cards are
not useful.
Support for the 7955 and 7956 is incomplete; the asymmetric crypto facilities are to be added and the performance is suboptimal.
Supplying data to the kernel rnd(4) subsystem has been disabled, pending verification that the on-chip RNG is statistically adequate.
BUGS
The 7751 chip starts out at initialization by only supporting compression. A proprietary algorithm, which has been reverse engineered, is
required to unlock the cryptographic functionality of the chip. It is possible for vendors to make boards which have a lock ID not known to
the driver, but all vendors currently just use the obvious ID which is 13 bytes of 0.
BSD October 8, 2003 BSD