MCU
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vinnie - 2009-11-19 15:19:00
> Hi all,
>
> Until now, I thought that superscalar processor design is only of
> interest for the desktop computer. However, since more and more
> transistors can be packed on the same die, I am wondering if
> there are now already the first superscalar processors available
> for the embedd...
Didi - 2009-11-09 22:36:00
On Nov 10, 5:16=A0am, Vladimir Vassilevsky wrote:
> Didi wrote:
> > two 32 bit register accessing a 64 bit free running
> > counter. The way to do it is simple: read the MS-part, then read the
> > LS part, then the MS again; if the two MS reads differ, repeat.
>
> Problem with cycl...
On Wed, 04 Nov 2009 14:14:06 +0000, Mike Fletcher
wrote:
> This is more a marking question but I am wondering if there is somewhere
> an "official" figure that tells how many of the produced microprocessors
> are employed in embedded devices and how many in desktop machines?
Not that...
-vinnie- - 2009-10-26 10:49:47
On Oct 23, 8:18=A0am, "Raddix"
wrote:
> I am looking to drive a 3.5" tft display similar to the one used in the
> following protoboard.
>
> http://olimex.com/dev/lpc-2478stk.html
>
> We were considering using the lpc2478 for awhile with its dedicated lcd
> controller. But I was looki...
Mel - 2009-10-24 19:06:00
Paul E Bennett wrote:
> Firstly, you didn't say which LCD module and EEPROM. Doing so might have
> got a wider response already.
I hate to damn a manufacturer with problems that are probably my own -- see
below.
> Secondly, Logic Analysers are expensive to own and hire so doing the job
...
ql - 2009-10-24 11:53:00
Since this forum mentions my book ("Practical Statecharts in C/C++")
and the website (www.state-machine.com), I'd like to clarify some
misconceptions about state machines, UML, and tools.
For starters, I'd recommend reading a few articles about modern state
machines in embedded systems (see al...
larwe - 2009-10-22 11:48:00
On Oct 22, 11:36=A0am, "Not Really Me"
wrote:
> > microcontrollers/components for this project I would appreciate it
> > very much! Thanks.
>
> Look at TI MSP430. =A0Lot's of low power stuff and I think they have one =
with
> ZigBee support.
But he doesn't really want to design...
Arlet - 2009-10-22 03:54:00
On Thu, 22 Oct 2009 00:38:05 -0700, ajaybgr wrote:
> - I have a Main program running on a PIC18(can be any MC)
> - Apart from that I have another PIC16(can be any MC) with some amount
> of non-volatile memory.
> - a variable "Counter" is stored on the non-volatile memory ie PIC16
> side
...
Un bel giorno Vladimir Vassilevsky digitò:
> We are using M25P32 flash memory in one of the projects. It is used as
> a boot memory; normally, it is written only once or twice. However,
> there is a significant percent of failures; almost 25% of parts quit
> working after several week...
Un bel giorno dawydiuk digitò:
> -CAN bus
> -16 GPIO
> -8 ch 12-14 bit resolution ADC
> -Low cost
If you can get 10 real bits from a MCU's internal ADC (even the ones
specified as 12 or 14 bits), you can congratulate with yourself.
If 10 bits are enough, Luminary has some parts with...
rickee - 2009-10-13 21:00:00
> On Oct 12, 2:41=A0am, "rickee" wrote:
> > Requirement for our Audio system:
> > MP3 decode/WMA decode
> > CD/MP3 CD/WMA CD decode including servo control (it should be DSP)
> > USB/SD interface
> > rich interface just like UART/IIC/GPIO for our externtion.
>
> Why do you need arm ...
Chris H - 2009-09-20 11:11:00
In message , David Brown
writes
> Chris H wrote:
> I don't want to go into the pros and cons of SDCC in this thread
> (unless the OP goes there) - I don't know the specifics of the tools,
> so it would end up in yet another generic argument about the advantages
> and disadvantages of expe...
Mad I.D. - 2009-09-18 04:43:00
Hi.
I designed an ARM7 board with LPC2478 MCU. Unfortunately, JTAG doesn't
work like one would expect.
I can download code to FLASH, I can start debugging, BUT every time it
comes to the first STR instruction I get "Could not stop device"
ERROR. When I don't step the code it goes to some garb...
vorange - 2009-09-15 00:17:00
On Sep 12, 5:27=A0am, Ulf Samuelsson wrote:
>
> The AT91SAM9260 has two USB host ports, but full speed.
> The AT91SAM9G45 has two USB high speed host port.
I too was looking for an mcu that could support high speed host.
I looked at the 9260 but it was full speed only.
I looked at the ...
Sven - 2009-09-10 16:43:00
Hello again
I have solved the problem. I used the FT_GetStatus() right after calling
FT_Write(). That way FT_GetStatus() sayed I had 0 bytes to receive. Now I
simply call FT_Read() after FT_Write() and let it wait for the same amount
of data to read as i wrote. And I also got a lot of junk ...
MK - 2009-09-08 11:04:00
"Bill" wrote in message
news:5gnca5d000ql2jlabkd42od9tv1mcgr9b0@4ax.com...
> Hi,
>
> I'm trying to pull out data from the ADS8320 (a 16-bit ADC by Analog
> Devices. See bottom of page 10 in
> http://focus.ti.com/lit/ds/symlink/ads8320.pdf ) using the SPI in an
> AT91SAM7S256. The ...
Chris Burrows - 2009-09-01 20:03:00
"Johnson" wrote in message
news:h7jenm$1gbq$2@adenine.netfront.net...
> Could anybody please show me a list of popular ARM compilers and their
> approximate costs?
Armaide is a complete integrated development system which includes a
compiler and linker for an ARM7 compiler for the Obe...
larwe - 2009-08-07 12:24:00
On Aug 7, 10:41=A0am, news.tin.it wrote:
> I need some idea to realize a structure like this:
> =A0 =A0 MCU LCD CONTROLLER TFT LCD
Have you considered an FPGA solution?
...
RevAaron - 2009-08-04 11:55:00
Apologies for the necromancy, but what the hell!
> What are the biggest flash microcontrollers available in a DIP format
> in terms of mips, flash size, and ram size? This is for a small
> quantity of devices built on prototype boards.
Have you looked at Parallax's Propeller? No clue if it's...
ubrida - 2009-07-24 16:23:00
I need to build a custom usb to usb bridge. At a high level it is like a
one port hub with custom logic in the middle. So I need 2 usb ports, one
host and one device, and a programable MCU. It needs to support Mass
Storage Devices at USB 2.0 Hi-Speed (480 mbps). I am hoping to use vendor
librari...
bob - 2009-07-24 15:28:00
On Thu, 23 Jul 2009 22:49:22 +0300, Paul Keinanen
wrote:
> On Thu, 23 Jul 2009 19:06:32 +0100, Paul Carpenter
> wrote:
>
> > In article ,
> > nospam@nowhere.com says...
> > >
> > >
> > > Paul Carpenter wrote:
> > >
> > >
> > > > Until someone later wants to monitor...
Vladimir Vassilevsky - 2009-07-23 13:34:00
Paul Carpenter wrote:
> Until someone later wants to monitor what is happening and connects
> a TRUE RS232 device and blows your circuits.
Paul,
I agree that the TTL level signaling is not correct RS-232. However it
works just fine with the true RS-232 transceivers. It is handy t...
ql - 2009-07-23 10:08:00
You can check the recent port of lwIP 1.3.0 to the open source QP RTOS-
like state-machine framework available at . This web-page provides a complete example of DHCP, AUTOIP, UDP,
and an advanced web server with Server-Side Includes (SSI) and Common
Gateway Interface (CGI) capabilities. An exte...
On Jul 17, 12:10=A0pm, "cwillia"
wrote:
> I'm trying to find a micro controller that supports High Speed USB Host
> capabilities and also has at least 4 A/Ds on board as well. Any one know =
of
> something like this?
The LPC314x should pretty much be exactly what you are looking for. I...
Gadi - 2009-07-14 14:42:00
Greetings,
I am looking to get started developing a short range low power device
that will consist of a controller and a device with a motor and
sensors. I would like to use ZigBee as the wireless technology
solution to connect the controller to the device. It meets the price
point and range ...
On Thu, 09 Jul 2009 04:55:11 +0100, Nobody wrote:
> On Thu, 09 Jul 2009 09:57:45 +0800, who where wrote:
>
> > > I'm not expecting them to give away the Hi-Tech product for free.
> >
> > (snip)
> >
> > Why not?
>
> Because they charge $500 for C18, and the Hi-Tech compiler is s...
On Jul 1, 11:12=A0am, ih8s...@yahoo.com wrote:
> On Jul 1, 2:59=A0pm, George Neuner wrote:> Can you=
read it back with no errors?
>
> Yes.
Don't count on it for a long time as you are violating the spec!
> > That you may be violating the specs of the flash memory chip. =A0The
> ...
Tech350 - 2009-06-30 09:54:00
Hello all,
I'm new to this site and this is my first post. I have started a SD card
project where I want to interface the SD card with my MCU. I am using a
PIC18F8520 MCU. Well before I started working with the SD, I worked on the
DAC module successfully (I mentioned this because DAC uses SPI
com...
On Jun 20, 11:37=A0am, "FreeRTOS.org" wrote:
......
> > Why are they calling it 'Atmel Cortex M3' when it's an 'ARM Cortex M3'?
>
> Licensed from ARM, made by Atmel.
>
> These microcontroller.com threads always seem to appear two weeks after t=
he
> parts are originally mentioned.
...
Sivart - 2009-06-15 10:06:00
> On Jun 13, 11:06 am, Mel wrote:
>
> > On a Linux system with a kernel 2.6 or later, or on a BSD system, it
ought
> > to be possible to write udev rules to trigger your choice of actions
when a
> > USB device is found.
>
> Good point. Of course you could argue that this constitutes w...
On Sun, 31 May 2009 21:13:29 +0300, Paul Keinanen
wrote:
> > And I am pretty sure, they use some kind of RTOS inside.
>
> If I had to design a safety critical system, I would avoid any
> complexity as much as possible, this means getting rid of any RTOS.
I am biased but I think using a...
aleksa - 2009-05-31 04:26:00
AT89C51RD2 has 64k flash + 2k ROM.
Can I use all 64k with:
1. FLIP
2. API
or do FLASH and ROM overlap?
My MCU hasn't arrived yet, so I can't check this.
TIA
...
Scanman - 2009-05-15 15:48:00
> Scanman wrote:
> > I am trying to determine the availabilty of parts on an old design.
> >
> > It uses 8751H, 8255 and 8254. All are DIP packages.
> >
> > Can I still by these parts, or should I look for functional
repalcements?
> >
> > If I did go with a different Micro cont. w...
Frank Buss - 2009-05-13 22:59:00
Rohit wrote:
> I am working on a hobby project to generate sound effects with 89c2051
> using PWM. I am able to generate keyboard notes with it by generating
> pwm signals of different frequencies. But I am at loss as how to
> generate
> other effects like car crashing,bird chirping,mach...
Yoreki - 2009-05-13 14:45:00
First of all, sorry for not replying for so long. I was having trouble
logging into the website, and it took a little while to get it sorted out
with the webmaster.
I had meant to reply the day you guys posted, but as I said couldn't.
I've been able to find a solution or two in the meantime:
...
Cyberstein - 2009-05-05 15:18:00
> Hi,
>
> I have to use a 16x2 LCD character module, based on the Hitachi 77480
> controller.
>
> I need to display 21 custom symbols which are not included in the ROM
> so, my only chance is to use the CGRAM. The CGRAM, though, allows the
> user to create up to 8 custom symbols therefore i...
"Joe G (Home)" wrote in message
news:49f402df$0$2602$afc38c87@news.optusnet.com.au...
> "cell" wrote in message
> news:2751397a-58fc-4c7f-bd7f-9100ae8bca85@z16g2000prd.googlegroups.com...
> > Dear all,
> >
> > I want to use MCU to calculate the delay between 2 almost same analog...
Chris H - 2009-04-24 03:32:00
In message , Dave Nadler writes
> On Apr 21, 7:26 pm, Mike Silva wrote:
> > I've been asked to write a tutorial to introduce people who have had a
> > bit of programming experience to embedded hardware and software. I
> > can think of plenty of material for such a tutorial, but I don...
ashu - 2009-04-23 08:43:00
On Apr 22, 4:54=A0pm, Grant Edwards wrote:
> On 2009-04-22, 1swaroopa5 wrote:
>
> > Hii...
>
> > =A0 =A0I need to implement zigbee to IP bridge..this module is to be de=
veloped
> > in computer..IP Stack is already avaliable in linux..but I couldn't fin=
d
> > any resources...
On Sat, 18 Apr 2009 12:50:59 -0700 (PDT), "noone@nowhere.undef"
wrote:
> Hello,
>
> I'm looking for an open source SPCI parser to put in a microcontroller
> project (ATMEL AVR)
> I'd like to communicate with this device using a USB com (using a FTDI
> FT232)
> I see on
> http://compil...
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