ELECTRONICS
PG2051
89C2051/89C1051 Programmer - Fast serial download
DISTINCTIVE CHARACTERISTICS
• Erases, Programs & Verifies 89C2051 & 89C1051
• 89C2051 Devices use FLASH program memory
- Can be reprogrammed 1000 times per chip
- 10ms electronic erasure, vs. 30 minute UV
• Programmer interface is PC serial compatible
- 9600 Baud, 8 data, 2 stop bits, no parity
- Accepts standard Intel Hex files
- Programs on the fly - during serial download
• Stand-alone test switch
- Allows chip operating test without PC download
- Tests for blank chip without PC download
- Reads & Verifies chip data against last checksum
GENERAL DESCRIPTION
The PG2051 is a development programmer for the ATMEL
AT89C2051 (Referred to as the 89C2051) and the
AT89C1051. The PG2051 allows testing, erasure, pro-
gramming, verification and security protection of 89C2051
devices. The programmer is fast, small and simple to use.
The Programmer may be connected to a PC or other host
by a serial cable.
The data to be downloaded to the
programmer is transmitted in Intel Hex format.
programmer will erase & program, verify, write protect and
security protect as it receives the file, according to the
settings on its Dip switches.
The PG2051 can be used stand-alone by inserting an
89C2051 and pushing the Manual test switch, in this mode
it indicates Tested, Blank and Verified checksum conditions.
PG2051 LAYOUT
Power
Supply
DB9 Serial
Connector
ELECTRONICS
Suite 201, 19-21 Berry Street, P O Box 1491,
North Sydney, NSW 2060, Australia
Reissue: 17 October 2008
• Green/Red Indicator LEDs
• Programs Security bits, if required
• One Step program operation, as set by dipswitch
• No special PC software required
• Fast operation - programs a chip in 6 seconds (typ)
• Powered by DC plug pack (supplied)
In normal use device programming consists of:
• Insert an 89C2051
• Download intel hex file
• Watch LEDs
The speed of programming is limited by the speed of
Download, and for a full 2 kilobyte file - the maximum
capacity of the 89C2051 - this will typically be 6 seconds.
The
Shorter programs will complete more quickly. The PC serial
should be run at 9600 Baud, no parity, 8 data bits, 2 stop
bits - do not using other settings when downloading data.
The 89C2051 should be inserted into the programmer with
pin 1 at the top left position of the socket.
Indication
LEDs
Test Switch
PG2051
ELECTRONICS
- Dipswitch selectable
- Download starts Test/Erase/Program/Verify
(Manual Test if desired)
(Causes programming)
(Indicates success or failure)
Internet: stevenm@zeta.org.au
Dip Switch
Data/Fax (2) 9925-0297
Tel (2) 9925-0325
V1.01
Pin 1 on
Device
Device
Socket
1
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