More ISP downloading options:

With complementary software, XLISP programmer represents a great tool. The microcontroller connects to the XLISP programmer via 6 lines, two of which are +5V and GND and others are MOSI, MISO, SCK and MCLR. Unlike programmers whose operation is based on bootloading (and which need to give away part of their memory to a bootload program) XLISP programs the microcontroller externally so that the entire memory is available for the programmer.

Lists of chips it supports:
51MCU:
AT89S51,AT89S52,AT89S53,AT89S8252,AT89LS51,AT89LS52,AT89LS53,AT89LS8252
AVR MCU:
AT90S2323,AT90S2343AT90S4433,AT90S8535ATmega16,ATmega16L,ATmega161,ATmega161L,ATmega163,ATmega32,ATmega32L
ATmega323,ATmega323L,ATmega64,ATmega64LATmega8,ATmega8L,ATmega8515,ATmega8515LATmega8535,ATmega8535L ATtiny12,ATtiny12L,ATtiny13,ATtiny13LATtiny15,ATtiny15L,ATtiny22,ATtiny22L,ATtiny26,ATtiny26L
PIC MCU:
PIC16F870,PIC16F871,PIC16F872,PIC16F873,PIC16F874,PIC16F876,PIC16F877,
PIC16F873A,PIC16F874A,PIC16F876A,PIC16F877A
AT24CXX:
AT24C01,AT24C02,AT24C04,AT24C08,AT24C16,AT24C32,AT24C64,AT24C128,AT24C256,AT24C512

USB 51 tracer debugger simulator

Top ten innovations： 1. It adopts the latest high-tech air-class magnesium alloy case, and imported flannel fabric bag. 2. A large number of devices using the latest technology and all SMT installed. Adopt imported tantalum capacitor. 3. Comprehensive protection to avoid any possible mistakes. The power supply adopts fast-recovery insurance, even if there is a short-circuit, it should be effectively protected. All IO ports are designed with anti-shock resistance and USB port is also designed with electrostatic prevention of the lightning strike. 4. Single USB interface, no extra power supply or serial port, real plug-in peripheral. Convenient for desktop or laptop without RS232 interface. This product adopts 3 chip structure, that is simulation chip + monitor chip + USB chip, which is a real individual simulator. 5. High speed of downloading at 115200bps, compared with the previous version, it is improved by more than 10X. 6. Does not occupy resources, no limit to simulate 32 I/O ports, serial port, T2 etc. 7. Compatible with keilC51 UV2 IDE, support single step, breakpoint, view/modify register, variable, IO and memory data anytime. Support pause during full run, the system will stop at point to the next line to be executed. Support simulation of all kinds of 51family chips, ATMEL, Winbond, INTEL, SST and ST. Support simulation of ALE disable, PCA, double DPTR, and hardware SPI. 8. Multi-frequency crystal options: could select 4/11.0592/12/24 MHz as you wish. Solve the unstable issue caused by long crystal cable. 9. Designed with system self-testing with speaker and LED indicator, convenient for debugging. 10. Designed with long pressing reset button to enter offline running mode, from PC perspective, the simulator works like a real chip on the target board.

Integrated Development Environment to edit, build, download, simulate and debug within the same program.
Debugging of 8051 programs in C, Assembly or mixed level.
Debugged program can be simultaneously viewed in C and Assembly.
Variable window to watch C variable names, values and addresses.
Register window to watch the special function registers including 8051 ports.
Memory window to watch and modify program memory and internal RAM.
Call stack window to view list of function calls that lead to current program line ( traces all jumps and calls )
Terminal window to monitor 8051's serial port
Output Window Debug Tab to watch debug messages
Fully customizable window layout with dock able or floating debug windows.
Stop Debugging button to stop Debugging at any point
Go button to start execution
Step Into and Step Over buttons to single-step through the source code at C or Assembly level
Unlimited number of breakpoints to stop execution at any C or Assembly source line.
Windows 95/98/ME, NT,2000/2003 and XP compatible
Multi-file Editor to create and modify C or Assembly source code while simulating.
Supports Micro C for 8051/52.

The auction includes :
XL600+ DEVELOPMENT Board

51tracer  Emulation debugger
USB cable
AT89S52 Chip*2
Remote control
DIP40 Emulation port
ISP cable
Dupont thread expansion connection 20x wire
CD-ROM (Programmer Driver , English version PDF User manual , Board Schematic , Sample code (C / ASM) .)
Compatible for OS including Windows 98, Windows 2000/NT, Windows XP , Windows 2003 and Vista

System requirement and specification:
WINDOWS98/ME/2000/XP/2003/vista operation system.
Minimum 50MB space in hard disk.
At least one USB port
PCB size: 185* 130 mm
package size: 190*320* 80 mm
package weight: 1.9 kilograms