Perhaps slightly behind the times, Toshiba has finally certified two of its ARM-based microcontrollers for the mbed operating system developed for the ARM cores.
Mbed provides developers with a free, easy-to-use development environment, so there has been less commercial drive for mainstream chip suppliers with their own operatings sytems and tools to support it. The online compiler provided by Arm can be used with the new evaluation boards, and device programming can be performed with drag-and-drop simplicity on a host PC connected to the boards via USB. Developers can also access the component libraries verified by the Mbed community, allowing fast and efficient development of applications for embedded devices.
The key difference now is that the Arm Mbed Device Connector service provides connectivity with the Mbed Cloud, simplifying configuration of web services and providing something that Toshiba doesn't.
Another factor is the corporate structure. It is Toshiba Digital Solutions rather than the semiconductor division that is working on strengthening device security of IoT equipment as an Mbed Cloud lead partner to provide that connectivity.
Toshiba will be expanding products supporting Mbed OS with Mbed ecosystem partners through the Cortex-M0 and Cortex-M4 based microcontrollers. The 24MHz TX00 general-purpose microcontrollers provide USB support function while the TX04 microcontrollers add security functions.
There is also support for a wide range of applications via an Arduino-compatible connector so that applications can be developed quickly by connecting to a commercially available ArduinoShield board. Using Mbed Cloud allows secure connection with web services.
|Part Number||TMPM066FWUG (in mass production)|
|Maximum frequency||24 MHz|
|Built-in memory||128 Kbyte Flash, 16 Kbyte SRAM|
|Operating voltage||1.8 to 3.6 V|
|DMA||28 channels (1 unit)|
|USB||1 channel (full-speed device)|
|10-bit ADC||8 channels|
|16-bit Timer||10 channels|
|High resolution PPG||1 unit, 4 outputs|
|External interrupt pin||6 pins|
|Package||LQFP64 (10 mm x 10 mm, 0.5 mm pitch)|
|Part number||TMPM46BF10FG (in mass production)|
|Maximum frequency||120 MHz|
|Built-in memory||1024 Kbyte Flash, 513 Kbyte SRAM|
|Operating voltage||2.7 to 3.6 V|
|12-bit ADC||8 channels|
|DMA||32 channels (3 units)|
|16-bit Timer||8 channels|
|Interrupt input||16 channels|
|Clock-independent WDT||1 unit|
|Full UART||2 channels|
|SLC NAND Flash controller||1 unit|
Hash function generator
Random number seed
(14 mm x 14 mm, 0.5 mm pitch)
The Mbed evaluation boards for each microcontroller are provided by sensyst, as AdBun series products at http://www.chip1stop.com/web/JPN/en/selectCountry.do