Interface SWD interface four wires, VCC(=3.3V),GND,SWDIO(=TMS=),SWCLK(==CLK) It is usually designed to be placed on the evaluation board (" on-board ") of major companies, which is why the suffix is "OB". This set of simulation download debugging device named "ARM-OB" has USB communication function, can communicate with PC, the other end through SWD /JTAG way to communicate with supported devices, to complete the debugging simulation download debugging task. Compared with the OB debugger, our ARM OB simulation debugger lacks JTAG interface and only retains SWD interface, so as to debug and download the MCU of many companies using ARM . Supported kernels. All with SWD interface ARM7911, -M0M1M2M3M4A5A8A9 and other embedded MCU series. Support MCU producer (Stmicroelectronics), Freecale(Freescale), Nuvoton ( Tang), NXP(NXP), TI() Cypress, , Analog, , . Energy Micro, etc. Comparison between OB and -Link V2. Comparison between the ARM OB and the -Link v2. the firmware is stable, can be automatically upgraded, there will be no firmware damage(full-function v8 has firmware problems). U disk size, convenient project is carried on business trips. color: blue Material: PC+metal The connection SWD mode Function and percompatible withmance Programming function: can burn FLASH ROM, EEPROM, AFR, etc. Simulation function: Support running single step debugging, breakpoint debugging and other debugging methods, can view IO status, variable data, etc. Programming percompatible withmance: USB2.0 interface, SWD download, download speed! Simulation percompatible withmance: USB2.0 interface compatible with simulation debugging, single step debugging, breakpoint debugging, fast response speed! Product characteristics 1, simplified interface,using 4-wire SWD interface: vcc, swdio, swclk, gnd, can download simulation at high speed. 2, compatible with the traditional V8 emulator, the function is completely consistent. 3, the use of universal Micro-USB interfac