Tech Support > Computer Hardware > Microprocessors
ULN2803 or equivalent in SMD package? TI's???
Posted on July 25th, 2004 | 10 Comments

I'm having difficulty finding a surface-mount replacement for the venerable ULN2803 (octal Darlington driver, 50V max, 500mA per driver, clamp diodes included). The application is low-speed stepper...

USB non-buspowered GND - what to do
Posted on July 25th, 2004 | 5 Comments

Hi, I'm currently working on a selfpowered USB device and have just a quick question. Maybe I overlooked/missed some info on the datasheets etc. but I am questioning myself what to do with the GND...

Serial Programming, SPI and ATmega
Posted on July 25th, 2004 | 2 Comments

Dear all, I am trying to send commands to a max6952 LED driver via SPI with my microcontroller (ATmega8) which has SPI, however I have never writtern programing for serial communication, and I don't...

Font compression and decompression
Posted on July 25th, 2004 | 8 Comments

Hi, I want to store 16x16 font image in EEProm. My MCU Rom size is 512. So the total number of fonts stored is 512*8/16/16=16. Do anyone know if there exist font compression algorithm in the world...

[req] Need suggestions for a micro
Posted on July 24th, 2004 | 23 Comments

I have a client who is currently using a NEC V-25 at 16 MHz. This micro is no longer adequate for several reasons: (a) it's no longer manufactured, and (b) his expanded application requirements need...

(Novice) Debugging timing-critical code
Posted on July 24th, 2004 | 1 Comments

Regards... I need to code ISO-7816-3 (contact smartcards, data-link layer) in some MCU but I'm still pondering my options. I was thinking of simply using a couple of HC08's I've got handy, but my...

Re: Need help getting started with New Micros 8051 board
Posted on July 24th, 2004 | 1 Comments

Try a post at www.8052.com

Wireless data transfer
Posted on July 24th, 2004 | 1 Comments

Infotech Resources Ltd. has good and cost effective solutions using nordic ICs for Wireless data transfer between two microcontollers / PCs or a microcontroller and PC. u can contact them...

SDIO Pectec Camera
Posted on July 23rd, 2004 | 0 Comments

Does anyone have SDIO technical documents and/or documents for the SD Pectec Camera? I need to find the commands for SDIO and also response types 3, 4, and 5.

germany only: searching for 68K emulator
Posted on July 23rd, 2004 | 1 Comments

Hi, for maintainance of a 68000 PLCC or DIP based board I'm looking to get an emulator or something else to load my code quickly into RAM. Sorry, I can't use any ROM monitor solutions since I don't...

Programming Surface Mount PICs
Posted on July 23rd, 2004 | 5 Comments

Hello All, I am working on a tiny board with a surface mount microcontroller. (PIC16F876A) I have a P16PRO40 programmer, and it works quite well for DIP packaged chips, but there's no easy/good way...

bit error detection
Posted on July 22nd, 2004 | 5 Comments

Can any one point me to some information on detecting bit errors and C or C++ algorithms that do this. I am familiar with CRC algorithms and have used the 16 and 32 bit routines that are in Michael...

Re: Need help getting started with New Micros 8051 board
Posted on July 22nd, 2004 | 2 Comments

Ben wrote: you said you "paste in" the the hex data. what about the checksum? Set up the metalink assembler to generate a hexfile. then use the L command to send the hexfile to the board.

Sydney-X1 FPGA Computer, US$499 introductory price
Posted on July 22nd, 2004 | 1 Comments

BurchED announces the availability of the Sydney-X1 FPGA Computer, for the introductory price of US$499 ! The SYDNEY-X1 FPGA Computer - An educational FPGA development system for...

USB -> SPI interface (FT2232C)
Posted on July 22nd, 2004 | 1 Comments

I pretend to control a PLL(ADF4113 Analog Devices) through the computer USB Port. The PLL has a SPI bus interface and if the IC FT2232C is used the translation from USB to SPI can be done(MPSSE...

PIC Prototyping boards
Posted on July 22nd, 2004 | 0 Comments

We have about 54 prototyping boards left for the PIC16 series of microcontroller. Check them out at: http://www.microwidgets.com We now have a schematic of the board in .jpg format.

Free embedded modems
Posted on July 21st, 2004 | 1 Comments

I have about 30 embedded modems based on the Conexant RC56D/SP. These units have a TTL-level serial interface and run off +5V. The interface is a 34-way 2x17 100mil header, for which I do have...

Linux and priorities within kernel space
Posted on July 21st, 2004 | 1 Comments

I have maybe stupid question. From QNX I know every each driver acts as process having threads. Each thread has schedulinng scheme and it's own priority. How it's in Linux? I mean no user space, but...

Looking for multichannel PID controller IC
Posted on July 21st, 2004 | 10 Comments

is there a PID controller available in an off-the shelf IC package for integration on a PCB? or, what would be the cheapest way to implement 16 channels of PID temperature control (RTD in -> PWM...

Re: Need help getting started with New Micros 8051 board
Posted on July 21st, 2004 | 0 Comments

Ben, "Ben" <Ben@> wrote in message news:7uatf0pnnftdpkmr18frm985dm0r7esr3a@4ax.com... -0031) Are you sure the MetaLink assembler accepts "$MOD51". That directive looks a bit assembler specific to...