mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-09-05 13:53:50 -04:00
Backup point only. YRDK RX63N building but not linking.
This commit is contained in:
Richard Barry
parent
aa85a68636
commit
2f199771d5
33 changed files with 524 additions and 34403 deletions
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@ -0,0 +1,409 @@
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/***********************************************************************************************************************
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* DISCLAIMER
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* This software is supplied by Renesas Electronics Corporation and is only intended for use with Renesas products. No
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* other uses are authorized. This software is owned by Renesas Electronics Corporation and is protected under all
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* applicable laws, including copyright laws.
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* THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING
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* THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED. TO THE MAXIMUM
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* EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES
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* SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR ANY REASON RELATED TO THIS
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* SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
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* Renesas reserves the right, without notice, to make changes to this software and to discontinue the availability of
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* this software. By using this software, you agree to the additional terms and conditions found by accessing the
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* following link:
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* http://www.renesas.com/disclaimer
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*
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* Copyright (C) 2012 Renesas Electronics Corporation. All rights reserved.
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***********************************************************************************************************************/
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/***********************************************************************************************************************
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* File Name : resetprg.c
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* Device(s) : RX63x
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* Description : Defines post-reset routines that are used to configure the MCU prior to the main program starting.
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* This is were the program counter starts on power-up or reset.
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***********************************************************************************************************************/
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/***********************************************************************************************************************
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* History : DD.MM.YYYY Version Description
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* : 26.10.2011 1.00 First Release
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* : 13.03.2012 1.10 Stack sizes are now defined in r_bsp_config.h. Because of this the #include for
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* stacksct.h was removed. Settings for SCKCR are now set in r_bsp_config.h and used here
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* to setup clocks based on user settings.
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***********************************************************************************************************************/
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/***********************************************************************************************************************
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Includes <System Includes> , "Project Includes"
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***********************************************************************************************************************/
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/* Defines machine level functions used in this file */
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#include <machine.h>
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/* Defines MCU configuration functions used in this file */
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#include <_h_c_lib.h>
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/* Defines standard variable types used in this file */
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#include <stdbool.h>
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#include <stdint.h>
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/* This macro is here so that the stack will be declared here. This is used to prevent multiplication of stack size. */
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#define BSP_DECLARE_STACK
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/* Define the target platform */
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#include "platform.h"
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/***********************************************************************************************************************
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Macro definitions
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***********************************************************************************************************************/
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#define PSW_init (0x00030000)
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#define FPSW_init (0x00000100)
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/***********************************************************************************************************************
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Pre-processor Directives
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***********************************************************************************************************************/
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/* Declare the contents of the function 'Change_PSW_PM_to_UserMode' as
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assembler to the compiler */
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#pragma inline_asm Change_PSW_PM_to_UserMode
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/* Set this as the entry point from a power-on reset */
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#pragma entry PowerON_Reset_PC
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/***********************************************************************************************************************
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External function Prototypes
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***********************************************************************************************************************/
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/* Functions to setup I/O library */
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extern void _INIT_IOLIB(void);
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extern void _CLOSEALL(void);
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/***********************************************************************************************************************
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Private global variables and functions
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***********************************************************************************************************************/
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/* Power-on reset function declaration */
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void PowerON_Reset_PC(void);
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#if RUN_IN_USER_MODE==1
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#if __RENESAS_VERSION__ < 0x01010000
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/* MCU usermode switcher function declaration */
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static void Change_PSW_PM_to_UserMode(void);
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#endif
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#endif
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/* Main program function delcaration */
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void main(void);
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static void operating_frequency_set(void);
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/***********************************************************************************************************************
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* Function name: PowerON_Reset_PC
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* Description : This function is the MCU's entry point from a power-on reset.
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* The following steps are taken in the startup code:
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* 1. The User Stack Pointer (USP) and Interrupt Stack Pointer (ISP) are both set immediately after entry
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* to this function. The USP and ISP stack sizes are set in the file stacksct.h.
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* Default sizes are USP=4K and ISP=1K.
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* 2. The interrupt vector base register is set to point to the beginning of the relocatable interrupt
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* vector table.
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* 3. The MCU is setup for floating point operations by setting the initial value of the Floating Point
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* Status Word (FPSW).
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* 4. The MCU operating frequency is set by configuring the Clock Generation Circuit (CGC) in
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* operating_frequency_set.
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* 5. Calls are made to functions to setup the C runtime environment which involves initializing all
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* initialed data, zeroing all uninitialized variables, and configuring STDIO if used
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* (calls to _INITSCT and _INIT_IOLIB).
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* 6. Board-specific hardware setup, including configuring I/O pins on the MCU, in hardware_setup.
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* 7. Global interrupts are enabled by setting the I bit in the Program Status Word (PSW), and the stack
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* is switched from the ISP to the USP. The initial Interrupt Priority Level is set to zero, enabling
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* any interrupts with a priority greater than zero to be serviced.
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* 8. The processor is optionally switched to user mode. To run in user mode, set the macro
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* RUN_IN_USER_MODE above to a 1.
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* 9. The bus error interrupt is enabled to catch any accesses to invalid or reserved areas of memory.
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*
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* Once this initialization is complete, the user's main() function is called. It should not return.
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* Arguments : none
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* Return value : none
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***********************************************************************************************************************/
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void PowerON_Reset_PC(void)
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{
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/* Stack pointers are setup prior to calling this function - see comments above */
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/* Initialise the MCU processor word */
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#if __RENESAS_VERSION__ >= 0x01010000
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set_intb((void *)__sectop("C$VECT"));
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#else
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set_intb((unsigned long)__sectop("C$VECT"));
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#endif
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/* Initialize FPSW for floating-point operations */
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#ifdef __ROZ
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#define _ROUND 0x00000001 /* Let FPSW RMbits=01 (round to zero) */
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#else
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#define _ROUND 0x00000000 /* Let FPSW RMbits=00 (round to nearest) */
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#endif
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#ifdef __DOFF
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#define _DENOM 0x00000100 /* Let FPSW DNbit=1 (denormal as zero) */
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#else
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#define _DENOM 0x00000000 /* Let FPSW DNbit=0 (denormal as is) */
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#endif
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set_fpsw(FPSW_init | _ROUND | _DENOM);
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/* Switch to high-speed operation */
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operating_frequency_set();
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/* Initialize C runtime environment */
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_INITSCT();
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/* Comment this out if not using I/O lib */
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_INIT_IOLIB();
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/* Configure the MCU and YRDK hardware */
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hardware_setup();
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/* Change the MCU's usermode from supervisor to user */
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nop();
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set_psw(PSW_init);
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#if RUN_IN_USER_MODE==1
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/* Use chg_pmusr() intrinsic if possible. */
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#if __RENESAS_VERSION__ >= 0x01010000
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chg_pmusr() ;
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#else
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Change_PSW_PM_to_UserMode();
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#endif
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#endif
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/* Enable the bus error interrupt to catch accesses to illegal/reserved areas of memory */
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/* The ISR for this interrupt can be found in vecttbl.c in the function "bus_error_isr" */
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/* Clear any pending interrupts */
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IR(BSC,BUSERR) = 0;
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/* Make this the highest priority interrupt (adjust as necessary for your application */
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IPR(BSC,BUSERR) = 0x0F;
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/* Enable the interrupt in the ICU*/
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IEN(BSC,BUSERR) = 1;
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/* Enable illegal address interrupt in the BSC */
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BSC.BEREN.BIT.IGAEN = 1;
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/* Call the main program function (should not return) */
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main();
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/* Comment this out if not using I/O lib - cleans up open files */
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_CLOSEALL();
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while(1)
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{
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/* Infinite loop. Put a breakpoint here if you want to catch an exit of main(). */
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}
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}
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/***********************************************************************************************************************
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* Function name: operating_frequency_set
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* Description : Configures the clock settings for each of the device clocks
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* Arguments : none
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* Return value : none
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***********************************************************************************************************************/
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void operating_frequency_set(void)
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{
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/* Used for constructing value to write to SCKCR register. */
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uint32_t temp_clock = 0;
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/*
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Clock Description Frequency
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----------------------------------------
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Input Clock Frequency............ 12 MHz
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PLL frequency (x16).............. 192 MHz
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Internal Clock Frequency......... 96 MHz
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Peripheral Clock Frequency....... 48 MHz
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USB Clock Frequency.............. 48 MHz
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External Bus Clock Frequency..... 24 MHz */
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volatile unsigned int i;
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/* Protect off. */
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SYSTEM.PRCR.WORD = 0xA50B;
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/* Uncomment if not using sub-clock */
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//SYSTEM.SOSCCR.BYTE = 0x01; /* stop sub-clock */
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SYSTEM.SOSCCR.BYTE = 0x00; /* Enable sub-clock for RTC */
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/* Wait 131,072 cycles * 12 MHz = 10.9 ms */
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SYSTEM.MOSCWTCR.BYTE = 0x0D;
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/* PLL wait is 4,194,304 cycles (default) * 192 MHz (12 MHz * 16) = 20.1 ms*/
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SYSTEM.PLLWTCR.BYTE = 0x0F;
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/* Set PLL Input Divisor. */
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SYSTEM.PLLCR.BIT.PLIDIV = PLL_DIV >> 1;
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/* Set PLL Multiplier. */
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SYSTEM.PLLCR.BIT.STC = PLL_MUL - 1;
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/* EXTAL ON */
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SYSTEM.MOSCCR.BYTE = 0x00;
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/* PLL ON */
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SYSTEM.PLLCR2.BYTE = 0x00;
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for(i = 0;i< 0x168;i++)
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{
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/* Wait over 12ms */
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nop() ;
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}
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/* Figure out setting for FCK bits. */
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#if FCK_DIV == 1
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/* Do nothing since FCK bits should be 0. */
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#elif FCK_DIV == 2
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temp_clock |= 0x10000000;
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#elif FCK_DIV == 4
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temp_clock |= 0x20000000;
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#elif FCK_DIV == 8
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temp_clock |= 0x30000000;
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#elif FCK_DIV == 16
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temp_clock |= 0x40000000;
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#elif FCK_DIV == 32
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temp_clock |= 0x50000000;
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#elif FCK_DIV == 64
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temp_clock |= 0x60000000;
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#else
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#error "Error! Invalid setting for FCK_DIV in r_bsp_config.h"
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#endif
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/* Figure out setting for ICK bits. */
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#if ICK_DIV == 1
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/* Do nothing since ICK bits should be 0. */
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#elif ICK_DIV == 2
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temp_clock |= 0x01000000;
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#elif ICK_DIV == 4
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temp_clock |= 0x02000000;
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#elif ICK_DIV == 8
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temp_clock |= 0x03000000;
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#elif ICK_DIV == 16
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temp_clock |= 0x04000000;
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#elif ICK_DIV == 32
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temp_clock |= 0x05000000;
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#elif ICK_DIV == 64
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temp_clock |= 0x06000000;
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#else
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#error "Error! Invalid setting for ICK_DIV in r_bsp_config.h"
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#endif
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/* SDCLK Pin Output and BCLK Pin Output are disabled by default. */
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temp_clock |= 0x00C00000;
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/* Figure out setting for BCK bits. */
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#if BCK_DIV == 1
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/* Do nothing since BCK bits should be 0. */
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#elif BCK_DIV == 2
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temp_clock |= 0x00010000;
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#elif BCK_DIV == 4
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temp_clock |= 0x00020000;
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#elif BCK_DIV == 8
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temp_clock |= 0x00030000;
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#elif BCK_DIV == 16
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temp_clock |= 0x00040000;
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#elif BCK_DIV == 32
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temp_clock |= 0x00050000;
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#elif BCK_DIV == 64
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temp_clock |= 0x00060000;
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#else
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#error "Error! Invalid setting for BCK_DIV in r_bsp_config.h"
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#endif
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/* Figure out setting for PCKA bits. */
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#if PCKA_DIV == 1
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/* Do nothing since PCKA bits should be 0. */
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#elif PCKA_DIV == 2
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temp_clock |= 0x00001000;
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#elif PCKA_DIV == 4
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temp_clock |= 0x00002000;
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#elif PCKA_DIV == 8
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temp_clock |= 0x00003000;
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#elif PCKA_DIV == 16
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temp_clock |= 0x00004000;
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#elif PCKA_DIV == 32
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temp_clock |= 0x00005000;
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#elif PCKA_DIV == 64
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temp_clock |= 0x00006000;
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#else
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#error "Error! Invalid setting for PCKA_DIV in r_bsp_config.h"
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#endif
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/* Figure out setting for PCKB bits. */
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#if PCKB_DIV == 1
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/* Do nothing since PCKB bits should be 0. */
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#elif PCKB_DIV == 2
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temp_clock |= 0x00000100;
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#elif PCKB_DIV == 4
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temp_clock |= 0x00000200;
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#elif PCKB_DIV == 8
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temp_clock |= 0x00000300;
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#elif PCKB_DIV == 16
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temp_clock |= 0x00000400;
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#elif PCKB_DIV == 32
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temp_clock |= 0x00000500;
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#elif PCKB_DIV == 64
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temp_clock |= 0x00000600;
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#else
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#error "Error! Invalid setting for PCKB_DIV in r_bsp_config.h"
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#endif
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/* Bottom byte of SCKCR register must be set to 0x11 */
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temp_clock |= 0x00000011;
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/* Set SCKCR register. */
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SYSTEM.SCKCR.LONG = temp_clock;
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/* Re-init temp_clock to use to set SCKCR2. */
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temp_clock = 0;
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/* Figure out setting for IEBCK bits. */
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#if IEBCK_DIV == 2
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temp_clock |= 0x00000001;
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#elif IEBCK_DIV == 4
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temp_clock |= 0x00000002;
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#elif IEBCK_DIV == 6
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temp_clock |= 0x0000000C;
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#elif IEBCK_DIV == 8
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temp_clock |= 0x00000003;
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#elif IEBCK_DIV == 16
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temp_clock |= 0x00000004;
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#elif IEBCK_DIV == 32
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temp_clock |= 0x00000005;
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#elif IEBCK_DIV == 64
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temp_clock |= 0x00000006;
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#else
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#error "Error! Invalid setting for IEBCK_DIV in r_bsp_config.h"
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#endif
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/* Figure out setting for UCK bits. */
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#if UCK_DIV == 3
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temp_clock |= 0x00000020;
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#elif UCK_DIV == 4
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temp_clock |= 0x00000030;
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#else
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#error "Error! Invalid setting for UCK_DIV in r_bsp_config.h"
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#endif
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/* Set SCKCR2 register. */
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SYSTEM.SCKCR2.WORD = (uint16_t)temp_clock;
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/* Choose clock source. Default for r_bsp_config.h is PLL. */
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SYSTEM.SCKCR3.WORD = ((uint16_t)CLOCK_SOURCE) << 8;
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/* Protect on. */
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SYSTEM.PRCR.WORD = 0xA500;
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}
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/***********************************************************************************************************************
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* Function name: Change_PSW_PM_to_UserMode
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* Description : Assembler function, used to change the MCU's usermode from supervisor to user.
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* Arguments : none
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* Return value : none
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***********************************************************************************************************************/
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#if RUN_IN_USER_MODE==1
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#if __RENESAS_VERSION__ < 0x01010000
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static void Change_PSW_PM_to_UserMode(void)
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{
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MVFC PSW,R1
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OR #00100000h,R1
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PUSH.L R1
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MVFC PC,R1
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ADD #10,R1
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PUSH.L R1
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RTE
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NOP
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NOP
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}
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#endif
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#endif
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