Astrobe for Cortex-M4 news

General discussions about working with the Astrobe IDE and programming ARM Cortex-M3, M4 and M7 microcontrollers.
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cfbsoftware
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Astrobe for Cortex-M4 news

Post by cfbsoftware » Sat Jun 14, 2014 4:40 am

Astrobe for Cortex-M4 is now undergoing final testing with the initial release planned for late June / early July 2014. It is designed to be used with Cortex-M4 microcontrollers which have add, subtract, multiply, divide and square root floating-point instructions implemented in hardware. The performance comparisons that we have done indicate that floating point operations are about 10x-15x faster than they are with Astrobe for Cortex-M3. This is partly due to the comparative efficiency of hardware vs. emulated FPU instructions, and partly due to the fact that the hardware FPU instructions can be used in leaf procedures.

The first development board to be supported will be Embedded Artists' Cortex-M4 LPC4088 Quickstart board. The USB drive programming capability of this board gives very fast upload speeds. A timed run was performed with a 160K executable. It took 1 min 25 secs at 115000 baud to upload to an LPC1769 LPCXpresso board and only about 6 seconds to upload to the LPC4088 QuickStart board.

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