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04/04/2016 — WriteNow! programmer expands the device list by adding Atmel ATSAMD21E15L, ATSAMD21E16L and ATSAMD21G16L part of the SAMD21 Family of 32-bit ARM Cortex-M0+ Microcontrollers.

A rich set of peripherals, flexibility and ease-of-use combined with low power consumption make the Atmel SAM D21L ARM Cortex-M0+ based microcontroller series ideal for a wide range of home automation, consumer, metering and industrial applications. The SAM D21L is designed for simple and intuitive migration between SAM D devices with identical peripheral modules, compatible code and a linear address map.

WriteNow! uses the standard SWD protocol as programming interface.

Algocraft provides support of Atmel SAMD21L to all of its WriteNow! Series, single and parallel in-system programmers. Four models are available: WN-PRG01A (programs 1 device at a time), WN-PRG02A (programs 2 devices in parallel), WN-PRG04A (programs 4 devices in parallel), and WN-PRG08A (programs 8 devices in parallel). In additional, external demultiplexer modules are available as accessories for multiple-site WriteNow! models, giving the flexibility to program up to 32 devices easily.

Thanks to the optimized WriteNow! architecture, the complete programming time for ATSAMD21E16L device (64KB embedded Flash) including the unprotect and chip erase, blank check, program and verify of the whole memory size is about 10 seconds.

The following picture shows the possible programming steps for this family: