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ELECTRONICS
PG8952
89C51/89C52/89C55 Programmer - Intel Hex serial
DISTINCTIVE CHARACTERISTICS
• Erases, Programs & Verifies Atmel 40 pin micros
• 89C51/52 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 PG8952 is a development programmer for the ATMEL
AT89C51 family, - Referred to as the 89C51. References
made here to the 89C51 apply equally to the 89C52/55.
The PG8952 allows testing, erasure, programming, verifi-
cation and security protection of 89C51 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 PG8952 can be used stand-alone by inserting an
89C51 and pushing the Manual test switch, in this mode it
PG8952 LAYOUT
Dip Switch
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
- Dipswitch selectable
• One Step program operation, as set by dipswitch
- Download starts Test/Erase/Program/Verify
• No special PC software required
• Programs 89C51, 89C52, 89C55, 89LV51,
89LV52, 89C55
• Fast operation - programs 4kbytes in 12 sec (typ)
• Powered by DC plug pack (supplied)
indicates Tested, Blank and Verified checksum conditions.
In normal use device programming consists of:
• Insert an 89C51
• Download intel hex file
• Watch LEDs
The speed of programming is limited by the speed of
download, and for a 4 kilobyte file - the capacity of the
The
89C51 - this will typically be 12 seconds. 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 89C51 should be inserted into the programmer with
pin 1 at the top left position of the socket.
Indication
LEDs
Test Switch
Internet: stevenm@zeta.org.au
PG8952
V1.01
ELECTRONICS
(Manual Test if desired)
(Causes programming)
(Indicates success or failure)
Pin 1 on
Device
Device
Socket
Data/Fax (2) 9925-0297
Tel (2) 9925-0325
1

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Summary of Contents for AirBorn ELECTRONICS PG8952

  • Page 1 - Tests for blank chip without PC download - Reads & Verifies chip data against last checksum GENERAL DESCRIPTION The PG8952 is a development programmer for the ATMEL indicates Tested, Blank and Verified checksum conditions. AT89C51 family, - Referred to as the 89C51. References made here to the 89C51 apply equally to the 89C52/55.
  • Page 2 DB9 male. The cable required from a PC to 2) should be connected if possible for future upgradeability. the PG8952 is DB9 female to DB9 male straight through - Signal level should be compliant with the EIA232 standard.
  • Page 3 When this dipswitch is ON, the 89C51 will be erased when (May be verified) the start of an Intel Hex file is recieved by the PG8952. This readies the 89C51 for programming. If the ERASE dipswitch The illustrated dipswitch settings are suitable for normal...
  • Page 4 An LED tester will show no signal Using a terminal emulator set to 9600,N,8,2 as specified from the PG8952 - this is normal - COMs to the PG8952 under SERIAL PROTOCOL, transmit a single colon charac- is one way.