blob: 263defd6dac316ea230a3ac80b656e98fa8adaad (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
#include "systick.h"
// This function is to Initialize SysTick registers
void init_systick()
{
// Use the SysTick global structure pointer to do the following in this
// exact order with separate lines for each step:
//
// Disable SysTick by clearing the CTRL (CSR) register.
// Set the LOAD (RVR) to 8 million to give us a 100 milliseconds timer.
// Set the clock source bit in the CTRL (CSR) to the internal clock.
// Set the enable bit in the CTRL (CSR) to start the timer.
}
// This fuction is to create delay using SysTick timer counter
void delay_systick()
{
// Using the SysTick global structure pointer do the following:
// Create a for loop that loops 10 times
// Inside that for loop check the COUNTFLAG bit in the CTRL (CSR)
// register in a loop. When that bit is set exit this inner loop
// to do another pass in the outer loop of 10.
}
|
