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Is there CMSIS API documentation?

Neil Forcier

Hello,

I am using an Atmel SAMD21 MCU that is based off the ARM Cortex M0+. I am programming it via the Arduino IDE. I notice that the Arduino IDE includes the CMSIS library. Below is an example call from the library to setup a generic clock that compiles in the Arduino IDE

REG_GCLK_CLKCTRL = GCLK_CLKCTRL_CLKEN |         // Enable GCLK4 to TCC0 and TCC1

  GCLK_CLKCTRL_GEN_GCLK4 |     // Select GCLK4

My issue is I don't know where to find documentation on the CMSIS library. I have looked all over the ARM site with no luck. If you can please point me in the right direction it would be appreciated.

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    If you have a folder called CMSIS, I would expect that inside this folder, there is another folder called Documentation.

    This should contain some information in HTML format, so you can read it using your Web-browser.

    If that's not the case, try going to Atmel's site and look for the information there (it might be a good idea to search the site for the exact model name of the microcontroller).

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    If you have a folder called CMSIS, I would expect that inside this folder, there is another folder called Documentation.

    This should contain some information in HTML format, so you can read it using your Web-browser.

    If that's not the case, try going to Atmel's site and look for the information there (it might be a good idea to search the site for the exact model name of the microcontroller).

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