User`s manual

Introduction

849 is a new generation of Windows 95/98/ME/NT/2000/XP

based B+K PRECISION specialized programmers.

Programmer is capable to support all today available

Microcontrollers of MCS51 series (up to 40 pins) and AVR

Microcontrollers (8-40 pins) by parallel and serial way. 849 has

been developed in close cooperation with Atmel W&M.,

therefore programmer's hardware is focused to support all

current and future Microcontrollers of Atmel W&M MCS51

family.

849 is little, very fast and powerful portable programmer for

MCS51 series and Atmel AVR microcontrollers. 849 enables

also programming of serial EEPROM with IIC (24Cxx),

Microwire (93Cxx) and SPI (25Cxx) interface types. Using

build-in in-circuit serial programming (ISP) connector

programmer is capable to program MCS51 family

microcontrollers and Atmel AVR microcontrollers in serial way.

849 provides very competitive price but excellent hardware

design for reliable programming. Nice "value for money" in this

class.

849 provides very fast programming due to high-speed FPGA

driven hardware and support of IEEE1284 (ECP/EPP) high-

speed parallel port. It is surely faster than competitors in this

category.

849 interfaces with the IBM PC Pentium compatible or higher,

portable or desktop personal computers. A programmer allows

you to directly connect to your PC through any standard

parallel (printer) port - no special interface card is needed.

849 has 40 powerful TTL pindrivers provide

H/L/pull_up/pull_down and read capability for each pin of

socket. Advanced pindrivers incorporate high-quality high-

speed circuitry to deliver programming without overshoot or

ground bounce for all supported devices. Pin drivers operate

down to 1.8V so you'll be ready to program the full range of

today's advanced low-voltage devices.

The programmer performs device insertion test (wrong or

backward position) and contact check (poor contact pin-to-

socket) before it programs each device. These capabilities,

supported by signature-byte check help prevent chip damage

due to operator error.

Programmer's hardware offers enough resources for selftest,

that control program is any time be able to check pindrivers,