/**
 *  "Example_S32K_GPIO" Project or "Example_S32K_GPIO_IAR" Project
 *
 *  Author: wjandsq@163.com  2019/10/03
 *
 *  all rights reserved  http://www.mcu.so
 *  
 *  Modify History:
 *
 *  2019/11/09  "Example_S32K_GPIO" Project GCC Optimization Level :  Optimize for size (-Os)
 *  2019/11/09  "Example_S32K_GPIO_IAR" Project Debug OK with IAR Embedded Workbench for ARM Version 8.40.1.21539
 *
 * -----------------------------------------------------------------------------------------------------------------
 * 
 *  Toolchain and compiler:
 *
 * £¨1£©S32 Design Studio for ARM
 *      Version: 2018.R1 
 *  		Build id: 180815
 *
 * £¨2£©IAR Embedded Workbench for ARM
 *              Version: 8.40.1.21539
 *
 *  SDK Version:  SW32K1xx-SDK-RTM-3.0.2
 * 
 * -----------------------------------------------------------------------------------------------------------------
 *
 *  1. you can create a new project use SEGGER J-Link,  when you want use PEMicro OpenSDA Debug
 *
 *     you must add "${cross_prefix}gdb${cross_suffix}" in GDB Client Settings\Executable
 *
 *  2. Select Device is S32K144FS512M15
 *
 *  3. The "Example_S32K_GPIO" Project is a S32 Design Studio for ARM  Project that use GNU ARM GCC 6.3.1 
 *     "Example_S32K_GPIO_IAR" Project is a S32 Design Studio for ARM  Project that use IAR Embedded Workbench v8.40.1.21539
 *  4. Linker_Files ¡¢bootloader file and RAppID_BL tools.
 *
 *     "S32K144_64_flash.ld" have been modified to 0x00040000£¬to support S32 Design Studio for ARM GCC 6.3.1
 *      /* Flash */
 *      m_interrupts          (RX)  : ORIGIN = 0x00040000, LENGTH = 0x00000400
 *      m_flash_config        (RX)  : ORIGIN = 0x00040400, LENGTH = 0x00000010
 *      m_text                (RX)  : ORIGIN = 0x00040410, LENGTH = (0x00080000 - 0x00040410)
 *
 *     "S32K144_64_flash.icf" have been modified to 0x00040000£¬to support IAR Embedded Workbench for ARM.
 *     
 *     bootloader file is S32K_Bootloader_v104.rbf or S32K_Bootloader.srec
 *
 *     http://www.mcu.so/src/bootloader/tools/RAppID_BL.7z
 *     http://www.mcu.so/src/bootloader/tools/S32K144_Bootloader_v104.rbf
 *     http://www.mcu.so/src/bootloader/tools/NXP_Toolboxes_patch.txt
 *
 *  5. Your can use boot API to receive lpuart1(PTC6¡¢PTC7) data  in a S32K144EVB-Q100.
 *
 *  6. Your can use boot API to calculate  crc16 for YModem .
 * 
 *  7. Add IAP (In Application Programming) function
 *
 *     After start YModem srec file transfer by lpuart1£¬send "download" with crc16 ymodem £¬
 *     then the S32K144 is reset £¬program update is execute¡£
 *
 *  8. GCC Optimization
 *     GCC Optimization Level : Optimize for size (-Os)
 *
 * -----------------------------------------------------------------------------------------------------------------
 */