The IDAP-M is a very low cost CMSIS-DAP JTAG debug module with enhanced features. It can do more than just debugging. It appears as a USB disk drive. This allows firmware flashing easily by copying the firmware file over without requiring any special flashing software and works instantly with any operating system. It provides a UART to USB bridge for communication between the target device and the PC. These features turn the target device into mBed enabled. It can be used as an ultra low cost solution to production programming.

• Supports both SWD & JTAG mode
• Debug compatibility with most IDE such as Keil, CrossWorks, OpenOCD Eclipse, etc..
• UART to USB bridge for communication between target and PC. Supports baudrate up to 3M.
• mBed enabled the target MCU
• Firmware flashing by drag & drop simply by copying file over
• Gang programming with multiple IDAP-M

There are many way production gang programming can be accomplished using the multiple IDAP-M.

1. Use PC software for parallel programming (currently avail for nRF51 & nRF52 series MCU)
2. Drag & Drop file into the IDAP_FLASH drive of each IDAP-M that shows up on the PC

Tutorial : http://embeddedsoftdev.blogspot.ca/p/idap-link.html