/*
* File: start.c
* Purpose: Kinetis start up routines.
*
* Notes:
*/
#include "start.h"
#include "common.h"
#include "wdog.h"
#include "sysinit.h"
/********************************************************************/
/*!
* \brief Kinetis Start
* \return None
*
* This function calls all of the needed starup routines and then
* branches to the main process.
*/
void start(void)
{
/* Disable the watchdog timer */
wdog_disable();
/* Copy any vector or data sections that need to be in RAM */
common_startup();
/* Perform processor initialization */
sysinit();
#if(defined(K60_CARD_UART_DISP))
printf("\n\n");
if (MC_SRSH & MC_SRSH_SW_MASK)
printf("Software Reset\n");
if (MC_SRSH & MC_SRSH_LOCKUP_MASK)
printf("Core Lockup Event Reset\n");
if (MC_SRSH & MC_SRSH_JTAG_MASK)
printf("JTAG Reset\n");
if (MC_SRSL & MC_SRSL_POR_MASK)
printf("Power-on Reset\n");
if (MC_SRSL & MC_SRSL_PIN_MASK)
printf("External Pin Reset\n");
if (MC_SRSL & MC_SRSL_COP_MASK)
printf("Watchdog(COP) Reset\n");
if (MC_SRSL & MC_SRSL_LOC_MASK)
printf("Loss of Clock Reset\n");
if (MC_SRSL & MC_SRSL_LVD_MASK)
printf("Low-voltage Detect Reset\n");
if (MC_SRSL & MC_SRSL_WAKEUP_MASK)
printf("LLWU Reset\n");
/* Determine specific Kinetis device and revision */
cpu_identify();
#endif
/* Jump to main process */
main();
/* No actions to perform after this so wait forever */
while(1);
}
/********************************************************************/
/*!
* \brief Kinetis Identify
* \return None
*
* This is primarly a reporting function that displays information
* about the specific CPU to the default terminal including:
* - Kinetis family
* - package
* - die revision
* - P-flash size
* - Ram size
*/
void cpu_identify (void)
{
/* Determine the Kinetis family */
switch((SIM_SDID & SIM_SDID_FAMID(0x7))>>SIM_SDID_FAMID_SHIFT)
{
case 0x0:
printf("\nK10-");
break;
case 0x1:
printf("\nK20-");
break;
case 0x2:
printf("\nK30-");
break;
case 0x3:
printf("\nK40-");
break;
case 0x4:
printf("\nK60-");
break;
case 0x5:
printf("\nK70-");
break;
case 0x6:
printf("\nK50-");
break;
case 0x7:
printf("\nK53-");
break;
default:
printf("\nUnrecognized Kinetis family device.\n");
break;
}
/* Determine the package size */
switch((SIM_SDID & SIM_SDID_PINID(0xF))>>SIM_SDID_PINID_SHIFT)
{
case 0x2:
printf("32pin ");
break;
case 0x4:
printf("48pin ");
break;
case 0x5:
printf("64pin ");
break;
case 0x6:
printf("80pin ");
break;
case 0x7:
printf("81pin ");
break;
case 0x8:
printf("100pin ");
break;
case 0x9:
printf("104pin ");
break;
case 0xA:
printf("144pin ");
break;
case 0xC:
printf("196pin ");
break;
case 0xE:
printf("256pin ");
break;
default:
printf("\nUnrecognized Kinetis package code. ");
break;
}
/* Determine the revision ID */
switch((SIM_SDID & SIM_SDID_REVID(0xF))>>SIM_SDID_REVID_SHIFT)
{
case 0x0:
printf("Silicon rev 1.0 \n ");
break;
case 0x1:
printf("Silicon rev 1.1 \n ");
break;
case 0x2:
printf("Silicon rev 1.2 \n ");
break;
default:
printf("\nThis version of software doesn't recognize the revision code.");
break;
}
/* Determine the flash revision */
flash_identify();
/* Determine the P-flash size */
switch((SIM_FCFG1 & SIM_FCFG1_PFSIZE(0xF))>>SIM_FCFG1_PFSIZE_SHIFT)
{
case 0x7:
printf("128 kBytes of P-flash ");
break;
case 0x9:
printf("256 kBytes of P-flash ");
break;
case 0xB:
printf("512 kBytes of P-flash ");
break;
case 0xF:
printf("512 kBytes of P-flash ");
break;
default:
printf("ERR!! Undefined P-flash size\n");
break;
}
/* Determine if the part has P-flash only or P-flash and FlexNVM */
if (SIM_FCFG2 & SIM_FCFG2_PFLSH_MASK)
printf("P-flash only\n");
else
/* if part has FlexNVM determine the FlexNVM size*/
switch((SIM_FCFG1 & SIM_FCFG1_NVMSIZE(0xF))>>SIM_FCFG1_NVMSIZE_SHIFT)
{
case 0x0:
printf("0 kBytes of FlexNVM\n");
break;
case 0x7:
printf("128 kBytes of FlexNVM\n");
break;
case 0x9:
printf("256 kBytes of FlexNVM\n");
break;
case 0xF:
printf("256 kBytes of FlexNVM\n");
break;
default:
printf("ERR!! Undefined FlexNVM size\n");
break;
}
/* Determine the RAM size */
switch((SIM_SOPT1 & SIM_SOPT1_RAMSIZE(0xF))>>SIM_SOPT1_RAMSIZE_SHIFT)
{
case 0x5:
printf("32 kBytes of RAM\n\n");
break;
case 0x7:
printf("64 kBytes of RAM\n\n");
break;
case 0x8:
printf("96 kBytes of RAM\n\n");
break;
case 0x9:
printf("128 kBytes of RAM\n\n");
break;
default:
printf("ERR!! Undefined RAM size\n\n");
break;
}
}
/********************************************************************/
/*!
* \brief flash Identify
* \return None
*
* This is primarly a reporting function that displays information
* about the specific flash parameters and flash version ID for
* the current device. These parameters are obtained using a special
* flash command call "read resource." The first four bytes returned
* are the flash parameter revision, and the second four bytes are
* the flash version ID.
*/
void flash_identify (void)
{
/* Get the flash parameter version */
/* Write the flash FCCOB registers with the values for a read resource command */
FTFL_FCCOB0 = 0x03;
FTFL_FCCOB1 = 0x00;
FTFL_FCCOB2 = 0x00;
FTFL_FCCOB3 = 0x00;
FTFL_FCCOB8 = 0x01;
/* All required FCCOBx registers are written, so launch the command */
FTFL_FSTAT = FTFL_FSTAT_CCIF_MASK;
/* Wait for the command to complete */
while(!(FTFL_FSTAT & FTFL_FSTAT_CCIF_MASK));
printf("Flash parameter version %d.%d.%d.%d\n",FTFL_FCCOB4,FTFL_FCCOB5,FTFL_FCCOB6,FTFL_FCCOB7);
/* Get the flash version ID */
/* Write the flash FCCOB registers with the values for a read resource command */
FTFL_FCCOB0 = 0x03;
FTFL_FCCOB1 = 0x00;
FTFL_FCCOB2 = 0x00;
FTFL_FCCOB3 = 0x04;
FTFL_FCCOB8 = 0x01;
/* All required FCCOBx registers are written, so launch the command */
FTFL_FSTAT = FTFL_FSTAT_CCIF_MASK;
/* Wait for the command to complete */
while(!(FTFL_FSTAT & FTFL_FSTAT_CCIF_MASK));
printf("Flash version ID %d.%d.%d.%d\n",FTFL_FCCOB4,FTFL_FCCOB5,FTFL_FCCOB6,FTFL_FCCOB7);
/* Clear all of the flags in the flash status register */
FTFL_FSTAT = 0xFF;
}
/********************************************************************/
