E8 Emulator Additional Document for User's Manual
Contents
1. P64 BUSY Pin2 Oo 0 0 0 0 0 0 Pin14 Pin1 oO QO O O O O O Pin13 A Pin 1 mark k o Vss _ P66 RxD m Vss e wo RESET Sl gt Vss Figure 3 1 Pin Assignments of the E8 Connector ENESAS ENESAS Section 4 Example of ES Connection Figure 4 1 shows the connecting example Pulled up at 4 7kQ or more Pulled up at 4 7kQ or more M16C 62P Pulled up at 4 7kQ or more Pulled down at 4 7kQ or more TIT 14 pin 2 54 mm pitch connector Open collector buffer User system Figure 4 1 Example of E8 Connection In the Writing Flash memory mode where the user program is simply written to the flash memory the specification of connection between the E8 and the MCU is the same as that shown in Figure 4 1 ENESAS Notes 1 P64 P65 P66 and P67 pins are used by the E8 emulator Connect the E8 emulator to the MCU pins For MCU pins P65 P66 and P67 pull up and connect to the emulator User system connector Pulled up at 4 7kQ or more en M16C 62P Figure 4 2 Connection of E8 Emulator and MCU 2 The E8 emulator uses the P50 and P55 pins for the MCU control Connect the E8 emulator to the MCU pins User system connector 7 P50 CE Figure 4 3 Connection of E8 Emulator and P50 and P55 Pins 3 The E8 emulator uses the CNVss pin for the MCU control Connect the E8 e2. diagrams charts programs algorithms or circuit application examples contained in these materials 3 All information contained in these materials including product data diagrams charts pro grams and algorithms represents information on products at the time of publication of these materials and are subject to change by Renesas Technology Corp without notice due to product improvements or other reasons It is therefore recommended that customers contact Renesas Technology Corp or an authorized Renesas Technology Corp product distributor for the latest product information before purchasing a product listed herein The information described here may contain technical inaccuracies or typographical errors Renesas Technology Corp assumes no responsibility for any damage liability or other loss rising from these inaccuracies or errors Please also pay attention to information published by Renesas Technology Corp by various means including the Renesas Technology Corp Semiconductor home page http www renesas com 4 When using any or all of the information contained in these materials including product data diagrams charts programs and algorithms please be sure to evaluate all information as a total system before making a final decision on the applicability of the information and products Renesas Technology Corp assumes no responsibility for any damage liability or other loss resulting from the information contained herein
3. 5 Renesas Technology Corp semiconductors are not designed or manufactured for use in a device or system that is used under circumstances in which human life is potentially at stake Please contact Renesas Technology Corp or an authorized Renesas Technology Corp product distributor when considering the use of a product contained herein for any specific purposes such as apparatus or systems for transportation vehicular medical aerospace nuclear or undersea repeater use 6 The prior written approval of Renesas Technology Corp is necessary to reprint or reproduce in whole or in part these materials 7 If these products or technologies are subject to the Japanese export control restrictions they must be exported under a license from the Japanese government and cannot be imported into a country other than the approved destination Any diversion or reexport contrary to the export control laws and regulations of Japan and or the country of destination is prohibited 8 Please contact Renesas Technology Corp for further details on these materials or the products contained therein Contents Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Specifications of the E8 Emulator A AA A ani ena 1 Connecting the Emulator with the User System c ccccceesceeceeeeeeeeeeeeeeeseeeeeceaeeeeeaeeseaeeesaeeeeaeeseneeeeaees 3 Pin Assignments of the E8 Connector 24044240044n40nnnannnnnnnnnnnnannnnnnnnnnnnnnnnan
4. Power On Initial Value Emulator PC Reset vector value in the vector address table Power On RO to R3 bank 0 1 0000h AO A1 bank O 1 0000h FB bank 0 1 0000h INTB 0000h 0000h Work RAM Address for the E8 emulator 80h 0000h 0000h Note The Work RAM address for the E8 emulator is specified in Firmware Location amp WDT dialog box when the High performance Embedded Workshop starts up in Download emulator firmware mode 5 Operation clock while the user program remains idle While the user program remains idle the E8 emulator program changes the main clock divide by N value as it runs 6 Reset The reset vector is used by the E8 emulator program If the MCU is reset while executing the user program control is transferred to the E8 emulator program and the user program is made to stop 7 Memory access during emulation execution When referring or modifying the memory contents the user program is temporarily halted For this reason realtime emulation cannot be performed 8 The emulator controls the MCUs by using the P50 P55 P64 P65 P66 P67 RESET and CNVss pins 9 The power consumed by the MCU increases by several mA or over 10 mA This is because the user power supply drives one 74LVC125A to make the communication signal level match the user system power supply voltage 10 The emulator uses up to 14 byte stack pointer when a user program breaks Accordingly reserve the 14 byte addresses for the sta
5. program after changing it the address setting of a PC break may not be corrected normally depending on the changes After downloading a user program please check the setting of a PC break by event point window and reset it Note on debugging in CPU rewrite mode When debugging in CPU rewrite mode do not rewrite the CPU s block O area addresses FF000h FFFFFh and block containing the program for the E8 emulator If these areas are rewritten the E8 emulator will run out of control Do not halt the user program after setting the CPU rewrite mode until releasing it If you do so the E8 emulator may run out of control Cancel the automatic renewal in the watch window in advance and select fixing display in the memory window to prevent a memory access from occurring while executing the user program To check the data after executing the CPU rewrite mode halt the program after releasing the CPU rewrite mode and see the memory window etc ENESAS 22 Note on lock bits of flash memory When starting up the High performance Embedded Workshop in Download emulator firmware mode or Writing Flash memory mode lock bits in all the blocks of the flash memory will be unlocked Note that the lock bits of the downloaded blocks will be unlocked after downloading the user program 17 ENESAS ENESAS Section 6 Applicable Tool Chain and Partner Tools With the M16C 62P Group E8 emulator you can debug a module created by the inhouse
6. tool chain and third party products listed in Table 6 1 below Table 6 1 Applicable Tool Chain and Partner Tools Tool chain M3T NC30WA V 5 20 Release 1 or later Partner tools TASKING M16C C C EC Compiler V 2 3r1 or later IAR EWM16C V 2 12 or later Precautions on debugging the load modules created in ELF DWARF2 format If the load module was created in ELF DWARF2 format using TASKING M16C C C EC compiler V3 0r1 the precaution described below must be observed when displaying member variables of the base class in the watch window lt Precaution gt If any class object that has a base class is defined the following problems may occur Case 1 Member variables of the base class cannot directly be referenced from the class object 1 Case 2 If the PC value resides in any member function of a derived class member variables of the base class cannot directly be referenced 4 lt Solution gt If member variables of the base class need to be referenced in the watch window follow either method described below Case 1 Use indirect references from the class object to refer to member variables of the base class 2 3 Case 2 Use indirect references from this pointer to refer to member variables of the base class 5 6 lt Example program statement gt TUM h class BaseClass public int m_iBase public BaseClass m_iBase 0 void BaseFunc void y class DerivedClass public Ba
7. 6 and 7 2 Do not change the value of the register Do not change the value of the bits listed above When operating this register change it by a bit operating instruction etc Interrupts used by the E8 emulator program The BRK instruction interrupt address match interrupt single step interrupt and DBC interrupt are used by the E8 emulator program Therefore make sure the user program does not use these interrupts NMI interrupt If NMI interrupts are to be used be sure to take the necessary measures before executing the user program by for example disabling automatic updates of the watch window and freezing the display of the memory window in order to ensure that no memory accesses will occur during user program execution If an NMI interrupt occurs while the user program remains idle or when memory contents are referenced or changed during user program execution device operation becomes uncontrollable by the E8 emulator Reserved area The addresses not specified in the Hardware Manual for M16C 62P Group is reserved area Do not change the contents Otherwise the E8 emulator cannot be controlled Debugging in the stop mode or wait mode When using the stop mode or wait mode on a user program firstly disable the automatic update in the watch window or fix the display in the memory window so that the memory access will not occur during execution In addition do not operate the window until the program stops at the breakpoint by s
8. REJ10J0927 0200 T Everywhere you imagine yy TE NESAS E8 Emulator gt gt gt gt EEE Additional Document for User s Manual ROE000080OKCEOOEP4 Renesas Microcomputer Development Environment System M16C Family M16C 60 Series Notes on Connecting the M16C 62P Rev 2 00 Jun 23 2005 Renesas Technology www renesas com Keep safety first in your circuit designs 1 Renesas Technology Corp puts the maximum effort into making semiconductor products better and more reliable but there is always the possibility that trouble may occur with them Trouble with semiconductors may lead to personal injury fire or property damage Remember to give due consideration to safety when making your circuit designs with ap propriate measures such as i placement of substitutive auxiliary circuits ii use of non flammable material or iii prevention against any malfunction or mishap Notes regarding these materials 1 These materials are intended as a reference to assist our customers in the selection of the Renesas Technology Corp product best suited to the customer s application they do not convey any license under any intellectual property rights or any other rights belonging to Renesas Technology Corp or a third party 2 Renesas Technology Corp assumes no responsibility for any damage or infringement of any third party s rights originating in the use of any product data
9. bugging in Download emulator firmware mode or Does not download emulator firmware mode FFh FFh FFh FFh FFh FFh FFh is written into the ID code area regardless of the contents of the user program In Writing flash memory mode the contents of the user program are input into the ID code area Table 5 2 ID Code Storage Area of M16C 62P Address Description FFFDFh First byte of ID code FFFESh Second byte of ID code FFFEBh Third byte of ID code FFFEFh Fourth byte of ID code FFFF3h Fifth byte of ID code FFFF7h Sixth byte of ID code FFFFBh Seventh byte of ID code ID Gode verification Please input ID Code 01 020304050607 Cancel Figure 5 3 ID Code verification Dialog Box Note on Writing Flash memory mode When the ID code is specified by the ID option of the Imc30 download the MOT file or HEX file When the X30 file is downloaded the ID code is not effective When downloading the X30 file specify the ID code using an assembler directive command such as BYTE The file to which the ID code specified by the assembler directive command ID is output varies depending on the version of the assembler For details refer to the user s manual of the assembler 13 ENESAS 4 When the emulator system is initiated it initializes the general registers and part of the control registers as shown in Table 5 3 Table 5 3 Register Initial Values at Emulator
10. ck area 11 When debugging the flash memory is frequently re written by the E8 emulator Therefore do not use an MCU that has been used for debugging Also as the program for the E8 emulator is written into the MCU while debugging do not save the contents of the MCU s flash memory that have been used for debugging or use them as the ROM data for products ENESAS 12 SFR used by the program for the E8 emulator 2 13 14 15 16 17 As the SFR listed in Table 5 4 is used by the program for the E8 emulator do not change a value Otherwise the E8 emulator cannot be controlled Also they are not initialized by selecting Debug gt Reset CPU or with the RESET command If their contents are referred to a value that has been set in the program for the E8 emulator will be read Table 5 4 SFR Used by Program for E8 Emulator Address Register Symbol Bit Notes on using the E8 emulator 03A8h UART1 transmit receive mode register U1MR All bits 1 O3AAh 03ABh UART1 transmit buffer register U1TB All bits 1 03ACh UART1 transmit receive control register 0 U1CO All bits 41 03ADh UART1 transmit receive control register 1 U1C1 All bits 1 O3AEh 03AFh UART1 receive buffer register U1RB All bits 1 03B0h UART transmit receive control register 2 UCON Bits 1 3 4 5and6 2 03ECh Port P6 register P6 Bits 4 5 6 and 7 2 O3EEh Port P6 direction register PD6 Bits 4 5
11. er versions of emulator debuggers use 256 bytes 11 ENESAS Debugging of the watchdog timer When debugging the user program using the watchdog timer select the Debugging of program that uses WDT check box in the Firmware Location amp WDT dialog box By selecting this box the watchdog timer is being refreshed during the operation of the program for the E8 emulator Note that if a memory is accessed by the memory reference or modification the watchdog timer will be refreshed by the program for the E8 emulator Firmware Location amp WDT Firmware location Program 800h Byte Use FFO 00 MIN FOOOO MAX FF700 Work RAM 80h Byte Use 40 0 MIN 0400 MAX 1380 Figure 5 2 Firmware Location amp WDT Dialog Box Note When the High performance Embedded workshop is started in Does not download emulator firmware mode the 12 setting of the check box shown above cannot be changed because the previous setting remains effective When you change the setting of the check box of the Debugging of program that uses WDT restart the High performance Embedded Workshop in Download emulator firmware mode ENESAS 3 ID code of flash memory When the 7 bytes ID code Table 5 2 written to the flash memory is other than FFh FFh FFh FFh FFh FFh FFh input the ID code into the dialog box shown in Figure 5 3 which is displayed when starting up the High performance Embedded Workshop When de
12. etting the breakpoint at the processing unit where the stop mode or wait mode is cancelled Peripheral I Os during a break During a break although interrupts are not accepted peripheral I Os continue to be operated For example a timer interrupt is not accepted although counting a timer is continued when a user program is stopped by a break after operating a timer 15 ENESAS 18 Exceptional step operation a Software interrupt instruction STEP operation cannot be performed by continuously executing the internal processing of instructions undefined overflow BRK and INT which generates a software interrupt lt Example gt INT instruction NOP NOP INT 3 NOE gt Passes through if the STEP operation is carried out JMP MAIN INT_3 NOP lt The address at which the program should be stopped NOP NOP REIT b INT instruction Debugging of the program using the INT instruction should be used with the GO command by setting a software break for the internal processing of the INT instruction lt Example gt NOP INT 3 NOP JMP MAIN INT_3 NOP Break 4 NOP REIT Execution with the GO command 19 Run to cursor function The Run to cursor function is realized by using an address match break Therefore when you execute the Run to cursor command all the address match breaks you set become invalid while all the PC breaks remain valid 20 Note on PC break point 2 Rh When downloading a user
13. le can be connected When designing the user system refer to Figure 3 1 Pin Assignments of the E8 Connector and Figure 4 1 Example of E8 Connection shown in this manual Before designing the user system be sure to read the E8 emulator user s manual and the hardware manual for related MCUs Table 2 1 shows the recommended connector for the emulator Table 2 1 Recommended Connector Type Number Specifications 2514 6002 3M Limited 14 pin straight type Connect pins 2 6 10 12 and 14 of the user system connector to GND firmly on the PCB These pins are used as electrical GND and to monitor the connection of the user system connector Note the pin assignments of the user system connector User system interface cable Connector z User system Pin 2 Pia Pin 1 Figure 2 1 Connecting the User System Interface Cable to the User System Notes 1 Do not place any components within 3 mm of the connector 2 When the emulator is used in the writer mode connect the emulator similarly to the user system ENESAS ENESAS Section 3 Pin Assignments of the E8 Connector Figure 3 1 shows the pin assignments of the connector Pin 1 mark ar alal g plal A 1T T m Connector Pin NO M16C 62P MCU signals P65 SCLK Vss CNVss P55 EPM P67 TxD Vss P50 CE OINIO aA Po mnm Vcc co
14. mulator to the MCU pins through pull down User system Pulled down at connector 4 7KQ or more M16C 62P Figure 4 4 Connection of E8 Emulator and CNVss Pin ENESAS 4 The RESET pin is used by the E8 emulator Create the following circuit by connecting the open collector output buffer so that reset input can be accepted from the E8 emulator User system Vcc connector M16C 62P Pulled up at 4 7kQ or more Open collector buffer Figure 4 5 Example of a Reset Circuit 5 Connect Vss and Vcc with the Vss and Vcc of the MCU respectively 6 Connect nothing with N C 7 The amount of voltage permitted to input to Vcc must be within the guaranteed range of the microcomputer ENESAS 8 Figure 4 6 shows the interface circuit in the E8 emulator Use this figure as a reference when determining the pull up resistance value Emulator control circuit User system connector 100k Q 100k Q 10k Q100k Q 74LVC125A Power of the upper 74VLC125A is supplied from Vcc in the user system connector Figure 4 6 Interface Circuit in the Emulator Reference ENESAS Section 5 Differences between the MCUs and the Emulator 1 Program area for the E8 emulator Table 5 1 lists the program area for the E8 emulator Do not change this area otherwise the E8 emulator will not operate normally In this case restart the High performance Embedded Workshop in Download emulato
15. nnnnnnnnnnnnnnnnnnnannnnnanannn 5 Example of E8 Connection Ninina conan nano carne 7 Differences between the MCUs and the EmulatOF oooooconninnnnncnnnnnnnnnccnncccnnorcnn nr rca 11 Applicable Tool Chain and Partner Tools 240srsnsunnnennnnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnn nenn 19 Section 1 Specifications of the ES Emulator Table 1 1 shows the specifications of the M16C 62P Group E8 Emulator Table 1 1 Specifications of the M16C 62P Group E8 Emulator Target MCU M16C Family M16C 60 Series M16C 62P Group Usable MCU mode Single chip mode Break function Address match break 8 points PC break up to 255 points Forcible break Not available Flash memory programming function Available Clock synchronized serial communicating via P64 P65 P66 P67 Program for the E8 Emulator ROM size 2 KB RAM size 128 bytes Emulator power supply Unnecessary USB bus powered power supplied from the PC Interface with host machine USB USB 1 1 full speed Also connectable to host computers that support USB 2 0 Power supply function Can supply 3 3 V or 5 0 V to the target board 300 mA max Power voltage 3 0 3 6 V 4 5 5 5V Available only when VCC1 VCC2 ENESAS ENESAS Section 2 Connecting the Emulator with the User System Before connecting an E8 emulator hereafter referred to as emulator with the user system a connector must be installed in the user system so that a user system interface cab
16. r firmware mode Table 5 1 Program Area for the E8 Emulator ROM Size Program Area for E8 Emulator pe en a Data Area nels Vector Area ROM Area RAM Area M30620FCP 128KB 10KB M30621FCP 128KB 10KB M30622F8P 64KB 4KB FFFE4h FFFE7h M30623F8P 64KB 4KB FFFE8h FFFEBh 2KBofthe 158 bytes M16C 62P M30624FGP 256KB 4KB 20KB FFFECh FFFEFh a 1 M30625FGP 256KB 20KB FFFF4h FFFF7h 11 2 M30626FHP 384KB 31KB FFFFCh FFFFFh M30626FJP 512KB 31KB M30627FHP 384KB 31KB 1 When the High performance Embedded Workshop is used in Download emulator firmware mode the dialog box shown in Figure 5 1 is displayed Specify an area which is not used in the user system When the High performance Embedded workshop is started with Does not download emulator firmware mode program area for the E8 emulator cannot be changed because the previous setting remains effective When you change the program area for the E8 emulator restart the High performance Embedded Workshop in Download emulator firmware mode Firmware Location amp WDT Firmware location Program 800h Byte Use FFO 00 MIN FOOOO MAX FF700 Work RAM 80h Byte Use 40 0 MIN 0400 MAX 1380 I Debugging of program that uses WDT Figure 5 1 Firmware Location WDT Dialog Box 2 RAM area used by the M16C E8 emulator debugger V 1 01 00 or later is 128 bytes The form
17. reserved Printed in Japan E8 Emulator Additional Document for User s Manual ENESAS Renesas Technology Corp 2 6 2 Ote machi Chiyoda ku Tokyo 100 0004 Japan
18. seClass public int m_iDerive public DerivedClass m_iDerive 0 void DerivedFunc void 19 ENESAS cpp main class DerivedClass ClassObj ClassObj DerivedFunc return void BaseClass BaseFunc void m_iBase 0x1234 void DerivedClass DerivedFunc void BaseFunc m_iDerive 0x1234 TAMU lt Example for registering in the watch window gt TAT Case 1 If the PC value resides in the main function 1 ClassObj m_iBase Cannot be referenced 1 2 ClassObj __b_BaseClass m_iBase Can be referenced 2 3 ClassObj _ b_BaseClass m_iBase Can be referenced 3 m_iDerive Expansion symbol Case 2 If the PC value resides in the DerivedClass DerivedFunc function 1 m_iBase Cannot be referenced 4 2 this gt __b_BaseClass m_iBase Can be referenced 5 3 __b_BaseClass m_iBase Can be referenced 5 4 this en __b_BaseClass m_iBase Can be referenced 6 m_iDerive 5 __b_BaseClass m_iBase Can be referenced 6 THUMM HAMM ENESAS E8 Emulator Additional Document for User s Manual Notes on Connecting the M16C 62P Apr 1 2005 Rev 1 00 Publication Date Jun 23 2005 Rev 2 00 E Sales Strategic Planning Div Published by Renesas Technology Corp Microcomputer Tool Development Department Edited by Renesas Solutions Corp 2005 Renesas Technology Corp and Renesas Solutions Corp All rights
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