DSP, Micros & Memory


Cyan adds MCU and upgrades tools

18 May 2005 DSP, Micros & Memory

Cyan Technology has released the 16-bit Flash μCOG1m microcontroller and enhanced its CyanIDE integrated development environment.

The μCOG1m, which is aimed at applications where space and power are at a premium, is electrically equivalent to Cyan's 128-pin packaged eCOG1k and based on a Harvard RISC core developed by Cambridge Consultants. The chip provides power consumption of 400 nA in standby mode (CPU stopped) and 10,1 μA when continuously clocked at 16 kHz. The MCU is housed in an 8 mm square, 81 pin low-profile fine-pitch BGA.

Each μCOG1m also incorporates the same range of on-chip peripherals as the eCOG1k including serial interfaces (dual UARTs, dual USARTs, SPI and IrDA), timers, 16-bit clock generator timers, general-purpose event counter timers, an A/D converter and range of communications interfaces. It also offers 60 digital I/O and analog functions and 28 special GPIO pins that can be used as interrupts to wake-up the MCU meaning that the chip can be asleep for longer, therefore saving more power.

The μCOG1m uses a single instruction pre-fetch queue, and the microcontroller boasts performance of up to 25 MHz to easily accommodate the 16-bit routines required by many communications applications. Cyan has released Version 1.1 of its CyanIDE. The company says it can take many weeks to configure a conventional microcontroller's on-chip peripherals and memory, often longer than the time taken to write the core application software. Microcontrollers have documentation running to 300 or 400 pages but devote only 25 pages or so to the core, the rest concerns peripheral and memory configuration.

By using Cyan's on-chip Port Configurator, CyanIDE enables each peripheral on the eCOG1k or μCOG1m to be configured for a particular application. CyanIDE, including the full ANSI C-compiler with no time or code restrictions, is free and available as a download from Cyan's website.

In addition to offering a complete, development environment with Editor, Project File Manager, full ANSI C Compiler, Simulator, Debugger and In-system Programmer, CyanIDE 1.1 provides a patented peripheral configuration tool. Using a simple 'drag-and-drop' facility the designer can select the required peripherals by dragging them onto a screen image of the eCOG1k or μCOG1m microcontroller. The chosen peripheral is then simply 'right clicked' to display and set up its properties. This process saves reading hundreds of pages of a user manual and furthermore, if a mistake is made or conflicts are generated, the user is alerted. Fully-integrated help files and manuals are included.

CyanIDE Version 1.1 includes a 'drag-and-drop' process for graphically configuring the memory management unit whereby memory translation units are dragged and dropped on to a pictorial representation of the memory map. Logical and physical base addresses are entered and the segment size is selected from a drop down box. Cache Mode configuration can also be set up. CyanIDE then automatically generates all the startup code necessary to utilise the selected MMU configuration.

CyanIDE 1.1 also supports a USB driver connection to an evaluation board as well as the more traditional parallel port connection to the development kit.

For more information contact Ludwig Vornam, MB Silicon Systems, +27 (0)11 728 4757, ludwig@mbsiliconsystems.co.za



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