Embedded

A few novice questions
Robert Adsett schreef: In article <a0026cdb-aea2-40e3-b0f0- 095c648e447e(a)r66g2000hsg.googlegroups.com>, Tom�s � h�ilidhe says... One of my lecturers told me today that 74HCT hasn't been used for about the last 10 years, and that the 4000 family hasn't been used since maybe the 60's. That seems ... 6 May 2008 23:24

Anyone out there using Ada ?
Didi wrote: .... snip ... I think too much importance is given to the used language. Good programmers have been through a number of languages and if needed could quickly adjust to any other one; those really good would have settled to a certain language for a reason which might prove worth enoug... 6 May 2008 23:24

Microcontroller USB interface chip
"www.interfacebus.com" <Interfacebus.Engineer(a)gmail.com> skrev i meddelandet news:c6648f12-e2c5-453a-9c84-cbd7d8de4fbe(a)k37g2000hsf.googlegroups.com... On May 1, 7:00 pm, mach7 <mach7so...(a)gmail.com> wrote: I know very little about USB, so excuse the naive question. I'm looking for an IC that I can interface wi... 6 May 2008 22:20

Had an interview
On 2008-05-02, Robert Adsett <sub2(a)aeolusdevelopment.com> wrote: Changing a 2 to a 1 and a 1 to a two obviously ;) I have noted though that besides trying for the most obscure code to prove their worthiness to program no-one has actually verfied the inputs are in range. <rant> And? I don't know ab... 7 May 2008 08:31

Inputs left floating at the very start
Tom�s � h�ilidhe wrote: On May 3, 3:19 pm, rickman <gnu...(a)gmail.com> wrote: Why can't you just measure it? As soon as the CPU start executing code, toggle a pin from low to high to low. No matter what state the pin was before initialization, you will get an edge from this sequence. My s... 6 May 2008 21:26

Power Quicc 3 problem HW/SW ??
Moti Cohen wrote: Our MPC8548E is having problems loading the DDR2 memory (boot) from the driver burned on the flash. By driver, I assume you mean the boot loader? The DDR interface and flash interface (LBC) were tested stand alone and found to be working properly. DDR SDRAM is "fun" to configure. Y... 6 May 2008 21:26

Loss of synchronisation: Are the chips reliable?
In article <4a022b33-2119-4a50-a20f-5bf963cb1365@ 25g2000hsx.googlegroups.com>, Tom�s � h�ilidhe says... For my own project board, I went with the one-pin method. I left the board on overnight for three nights in a row and I never lost sync (don't ask me how many million times the display flashed). That re... 6 May 2008 21:26

Integer Square Root Algorithm for Processor with MUL, DIV
Paul E. Bennett wrote: ... <quote> A classical Forth puzzle is: What does the following do? : ???? -1 TUCK DO 2 + DUP +LOOP 2/ ; It is a standard method of calculating square root by summing the odd integers. It works for all unsigned integers from 0 to FFFFFFFF (or FFFF). </quot... 7 May 2008 10:57

Choosing Bi-port Ethernet Chip
I've searched the web and I've only found two chips that can interface with 2 ethernet ports. They are: AX88742 AX88783 On the manufacturer's website, they describe the 42 variant as: 32-bit PCI 2-Port 10/100M Fast Ethernet Controller And the 83 variant as: Non-PCI 8/16/32-bit 2-Port ... 7 May 2008 00:21

AVR Assembler (Mega8) - Test if a value has changed more than a given amount
Can someone please offer a suggestion for a way to check if a value has changed up or down by at least some threshold. It doesn't matter how long it takes but code size and register use are important. I'm not sure how to handle values lower than ChangeThreshold or higher then 255 - ChangeThreshold. ..equ Chang... 7 May 2008 01:08