From 96d6da4e252b06dcfdc041e7df23e86161c33007 Mon Sep 17 00:00:00 2001 From: rihab kouki Date: Tue, 28 Jul 2020 11:24:49 +0100 Subject: Official ARM version: v5.6.0 --- docs/Core_A/html/group__system__init__gr.html | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'docs/Core_A/html/group__system__init__gr.html') diff --git a/docs/Core_A/html/group__system__init__gr.html b/docs/Core_A/html/group__system__init__gr.html index a57dd63..70ab9b0 100644 --- a/docs/Core_A/html/group__system__init__gr.html +++ b/docs/Core_A/html/group__system__init__gr.html @@ -32,7 +32,7 @@ Logo
CMSIS-Core (Cortex-A) -  Version 1.1.2 +  Version 1.1.4
CMSIS-Core support for Cortex-A processor-based devices
@@ -140,7 +140,7 @@ Variables
  • A global variable that contains the system frequency, SystemCoreClock.

    • The file configures the device and, typically, initializes the oscillator (PLL) that is part of the microcontroller device. This file might export other functions or variables that provide a more flexible configuration of the microcontroller system.

    -
    Note
    Please pay special attention to the static variable SystemCoreClock. This variable might be used throughout the whole system initialization and runtime to calculate frequency/time related values. Thus one must assure that the variable always reflects the actual system clock speed. Be aware that a value stored to SystemCoreClock during low level initialization (i.e. SystemInit()) might get overwritten by C library startup code. Thus its highly recommended to call SystemCoreClockUpdate at the beginning of the user main() routine.
    +
    Note
    Please pay special attention to the static variable SystemCoreClock. This variable might be used throughout the whole system initialization and runtime to calculate frequency/time related values. Thus one must assure that the variable always reflects the actual system clock speed. Be aware that a value stored to SystemCoreClock during low level initialization (i.e. SystemInit()) might get overwritten by C library startup code. Thus its highly recommended to call SystemCoreClockUpdate at the beginning of the user main() routine.

    Code Example

    The code below shows the usage of the variable SystemCoreClock and the functions SystemInit() and SystemCoreClockUpdate() with an arbitrary Arm Cortex-A9.

    @@ -219,7 +219,7 @@ Code Example