You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
106 lines
2.1 KiB
106 lines
2.1 KiB
3 months ago
|
/*
|
||
|
|
* Copyright (c) 2006-2021, RT-Thread Development Team
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: Apache-2.0
|
||
|
|
*
|
||
|
|
* Change Logs:
|
||
|
|
* Date Author Notes
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <rthw.h>
|
||
|
|
#include <rtthread.h>
|
||
|
|
#include "board.h"
|
||
|
|
#include "uart.h"
|
||
|
|
#include <stdint.h>
|
||
|
|
#include <stdbool.h>
|
||
|
|
#include "r_pdl_cgc.h"
|
||
|
|
/* General RPDL function definitions */
|
||
|
|
#include "r_pdl_definitions.h"
|
||
|
|
#include "intrinsics.h"
|
||
|
|
#include "iorx62n.h"
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This is the timer interrupt service routine.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
#pragma vector = VECT_CMT0_CMI0
|
||
|
|
__interrupt
|
||
|
|
void SysTick_Handler(void)
|
||
|
|
{
|
||
|
|
// __enable_interrupt();
|
||
|
|
/* enter interrupt */
|
||
|
|
rt_interrupt_enter();
|
||
|
|
|
||
|
|
rt_tick_increase();
|
||
|
|
|
||
|
|
/* leave interrupt */
|
||
|
|
rt_interrupt_leave();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void rt_hw_systick_init(void)
|
||
|
|
{
|
||
|
|
/* Enable compare match timer 0. */
|
||
|
|
MSTP( CMT0 ) = 0;
|
||
|
|
|
||
|
|
/* Interrupt on compare match. */
|
||
|
|
CMT0.CMCR.BIT.CMIE = 1;
|
||
|
|
|
||
|
|
/* Set the compare match value. */
|
||
|
|
CMT0.CMCOR = ( unsigned short ) (((XTAL_FREQUENCY * PCLK_MUL) / RT_TICK_PER_SECOND)/8 -1);
|
||
|
|
|
||
|
|
/* Divide the PCLK by 128. */
|
||
|
|
CMT0.CMCR.BIT.CKS = 0;
|
||
|
|
|
||
|
|
/* Enable the interrupt... */
|
||
|
|
_IEN( _CMT0_CMI0 ) = 1;
|
||
|
|
|
||
|
|
/* ...and set its priority to the application defined kernel priority. */
|
||
|
|
_IPR( _CMT0_CMI0 ) = 4;
|
||
|
|
|
||
|
|
/* Start the timer. */
|
||
|
|
CMT.CMSTR0.BIT.STR0 = 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
void rt_hw_system_freq_init(void)
|
||
|
|
{
|
||
|
|
/* Declare error flag */
|
||
|
|
bool err = true;
|
||
|
|
|
||
|
|
/* Modify the MCU clocks, all are based off Epson 12 MHz clock */
|
||
|
|
err &= R_CGC_Set
|
||
|
|
(
|
||
|
|
12E6,
|
||
|
|
96E6,
|
||
|
|
48E6,
|
||
|
|
24E6,
|
||
|
|
PDL_NO_DATA
|
||
|
|
);
|
||
|
|
/*
|
||
|
|
Clock Description Frequency
|
||
|
|
----------------------------------------
|
||
|
|
Input Clock Frequency..............12MHz
|
||
|
|
Internal Clock Frequency...........96MHz
|
||
|
|
Peripheral Clock Frequency.........48MHz
|
||
|
|
External Bus Clock Frequency.......24MHz */
|
||
|
|
|
||
|
|
/* Halt in while loop when RPDL errors detected */
|
||
|
|
while (!err);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This function will initial rx62n board
|
||
|
|
*/
|
||
|
|
void rt_hw_board_init()
|
||
|
|
{
|
||
|
|
|
||
|
|
rt_hw_system_freq_init();
|
||
|
|
rt_hw_systick_init();
|
||
|
|
rt_hw_uart_init();
|
||
|
|
#if defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE)
|
||
|
|
rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
|
||
|
|
#endif
|
||
|
|
}
|