Difference between revisions of "CMSIS notes"
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| + | CMSIS: The Common Microcontroller Software Interface Standard | ||
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| + | Starting point naming elements of CMSIS:<br /> | ||
| + | * https://developer.arm.com/tools-and-software/embedded/cmsis | ||
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* https://arm-software.github.io/CMSIS_5/Core/html/using_TrustZone_pg.html | * https://arm-software.github.io/CMSIS_5/Core/html/using_TrustZone_pg.html | ||
</ul> | </ul> | ||
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| + | In CMSIS file `./modules/hal/cmsis/CMSIS/DSP/Include/arm_math_types.h`: | ||
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| + | <pre> | ||
| + | 503 /** | ||
| + | 504 * @brief Error status returned by some functions in the library. | ||
| + | 505 */ | ||
| + | 506 | ||
| + | 507 typedef enum | ||
| + | 508 { | ||
| + | 509 ARM_MATH_SUCCESS = 0, /**< No error */ | ||
| + | 510 ARM_MATH_ARGUMENT_ERROR = -1, /**< One or more arguments are incorrect */ | ||
| + | 511 ARM_MATH_LENGTH_ERROR = -2, /**< Length of data buffer is incorrect */ | ||
| + | 512 ARM_MATH_SIZE_MISMATCH = -3, /**< Size of matrices is not compatible with the operation */ | ||
| + | 513 ARM_MATH_NANINF = -4, /**< Not-a-number (NaN) or infinity is generated */ | ||
| + | 514 ARM_MATH_SINGULAR = -5, /**< Input matrix is singular and cannot be inverted */ | ||
| + | 515 ARM_MATH_TEST_FAILURE = -6 /**< Test Failed */ | ||
| + | 516 } arm_status; | ||
| + | </pre> | ||
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| + | Also worth reviewing content of file `arm_math.h`. | ||
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| + | 2021-11-06 SAT: | ||
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| + | To make use of ARM RFFT FAST functions, in Zephyr app must assign 'y' to the Kconfig symbol CONFIG_CMSIS_DSP_TRANSFORM as in this post: | ||
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| + | * https://github.com/zephyrproject-rtos/zephyr/issues/32206 | ||
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| + | <!-- comment --> | ||
Latest revision as of 17:16, 27 December 2023
CMSIS: The Common Microcontroller Software Interface Standard
Starting point naming elements of CMSIS:
In CMSIS file `./modules/hal/cmsis/CMSIS/DSP/Include/arm_math_types.h`:
503 /**
504 * @brief Error status returned by some functions in the library.
505 */
506
507 typedef enum
508 {
509 ARM_MATH_SUCCESS = 0, /**< No error */
510 ARM_MATH_ARGUMENT_ERROR = -1, /**< One or more arguments are incorrect */
511 ARM_MATH_LENGTH_ERROR = -2, /**< Length of data buffer is incorrect */
512 ARM_MATH_SIZE_MISMATCH = -3, /**< Size of matrices is not compatible with the operation */
513 ARM_MATH_NANINF = -4, /**< Not-a-number (NaN) or infinity is generated */
514 ARM_MATH_SINGULAR = -5, /**< Input matrix is singular and cannot be inverted */
515 ARM_MATH_TEST_FAILURE = -6 /**< Test Failed */
516 } arm_status;
Also worth reviewing content of file `arm_math.h`.
2021-11-06 SAT:
To make use of ARM RFFT FAST functions, in Zephyr app must assign 'y' to the Kconfig symbol CONFIG_CMSIS_DSP_TRANSFORM as in this post:
