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Comp.Arch.Embedded | 68HC12 | AT91SAM ARM | AVRclub | BasicX | TI C2000 | FPGA-CPU | M68HC11 | LPC2000 | LPC900 | MSP430 | Piclist | Rabbit-Semi | TI ARM Processors MCUs |
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Ethernet causing reboot [2 Articles]
Posted by seecwriter in Rabbit-Semi on May 8 2013
I have another Ethernet issue on an RCM6750. I power up the module with an Ethernet cable
attached, it powers up fine. I then unplug the Ethernet cable, my app correctly detects the
disconnected cable and brings Ethernet down. When the cable is plugged back in, the Net.Lib
crashes and the module reboots.
Here is what I do:
void CheckCable()
if ( !pd_havelink( IF_ETH0 ) ) {
if (ifpend... 
free software 1-wire (DS18x20) library (AVR, ARM)? [9 Articles]
Posted by Ivan Shmakov in Comp.Arch.Embedded on May 8 2013
BTW, is there any good 1-wire "master" interface library (as
used, e. g., to communicate with the DS18B20 temperature
sensors), which happens to be free software?
I'm aware of the Peter Dannegger & Martin Thomas work [1], yet
neither in the code nor on the Web page can I find any
permission whatsoever to reuse the code (or even to run it!)
I've also seen a number of such libraries... Power Gating Devices [8 Articles]
Posted by Luther Blackwood in Comp.Arch.Embedded on May 8 2013
I've been toying around with the idea of using transistors to power gate devices, an SD card for
example. Is there any proper practices when doing this and/or anything to be concerned about?
... Re: Please help with SCI0 interrupt on DEMO9S12NE64
Posted by grec...@lafayette.edu in 68HC12 on May 8 2013
Under DBug-12 SCI0 interrupts are not available. The document
Reference Guide For DâBug12 Version 4.x.x
A Debug Monitor For The MC9S12Dx256, MC9S12A256, MC9S12Dx128, MC9S12H256 &
MC9S12A128 Microcontrollers
Written By Gordon Doughman
Field Applications Engineer
Software Specialist
states on page 11: Note that even though there is an entry in the table for SCI0, replacing the
defaul... how can i start to work with ARM? [5 Articles]
Posted by Sajjad Isapour in LPC2000 on May 8 2013
hello every body,
I'm interested to learn ARM and I want to learn the basic concept and then implement a project
plz help me in this way
tnx
;)
------------------------------------
... Full stop mode with Freescale MAC7121
Posted by Marco T. in Comp.Arch.Embedded on May 7 2013
Hello,
I need some help to activate full stop mode in MAC7121: before I activated
pseudo-stop mode, and it works fine. Now I need to activate full stop mode,
but it doesn't work.
This is the code:
CRG.CLKSEL.B.PLLSEL = 0; // selected oscilator clock
CRG.PLLCTL.B.PLLON = 0; // stop PLL
MCM.MWCR.R=0x80; // activated wakeup on interrupt
#ifdef FULL_STOP
CRG.CLK... Problem in using timers of AT32UC3C0512C
Posted by simp...@hotmail.com in AVRclub on May 7 2013
I have been trying for days now to configure the timers of AT32UC3C0512C to
generate a simple square wave. I am sure that the clock is reaching the timer
module, but there is no output. I am posting my code here. Can someone please
help me on this? Its been a long while since I am doing this and continuously
being unsuccessful. I am trying to generate a left aligned pulse with a
considerable ... Cortex M3, DMA and JTAG [3 Articles]
Posted by misterhershel in LPC2000 on May 6 2013
I'm using DMA to transfer data from memory through an SSP interface on a LPC1759. Everything
works fine if I power up the chip, with the JTAG interface connected (IAR Jlink).
However, with no JTAG connection, I get data errors during the transfer. It doesn't matter if
I'm debugging with the Jlink or not, just that it's connected. The right amount of data is
transferred, but about the last half ... FTDI drivers and OpenOCD
Posted by &quo...@ymail.com" in LPC2000 on May 5 2013
I need to keep my current FTDI drivers for my Olimex USB-JTAG device since I have some historic
program that use Crossworks 1.7
When I use the FTDI drivers with OpenOCD within Eclipse I get the following response:
Error: libusb_get_string_descriptor_ascii() failed with -5
Error: no device found
Error: unable to open ftdi device with vid 15ba, pid 0004, description 'Olimex USB Serial Conver... Smallest embedded processor with built-in bluetooth [7 Articles]
Posted by trueskew in Comp.Arch.Embedded on May 4 2013
I'm hoping to work with an extremely small circuit (half the size of a
dime, and preferably smaller) that needs to talk to a bluetooth host over
SPP. Money isn't an object yet, but it's fair to say that it needs to be
available off the shelf, not a custom chip.
My searches haven't done well, specific size doesn't seem to be part of the
key words. If anyone with experience has suggestions or c...