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E8 Emulator Additional Document for User`s Manual
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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 in 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 11 ENESAS Firmware Location amp WDT Firmware location Program 800h Byte Use FFO 00 MIN FODOO 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 amp WDT Dialog Box 2 RAM area used by the M16C E8 emulator debugger V 1 01 00 or later is 128 bytes The former versions of emulator debuggers use 256 bytes 2 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 the memory reference or modification the watchdog timer will be refreshed by the program for the E8 emulator Firmware
2. 244srsnsunnnennnnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnn nenn 17 Section 1 Specifications of the ES Emulator Table 1 1 shows the specifications of the M16C Tiny Series E8 Emulator Table 1 1 Specifications of the M16C Tiny Series E8 Emulator Target MCU M16C Family M16C Tiny Series M16C 26 M16C 26A M16C 28 and M16C 29 Groups Usable MCU mode Single chip mode Break function Address match break 6 points PC break up to 255 points Forcible break Trace function Not available Flash memory programming function Available User interface 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 Can supply 3 3 V or 5 0 V to the target board 300 mA max Power voltage M16C 26 3 0 5 5 V f BCLK 20MHz M16C 26A 2 7 5 5 V f BCLK 10MHz M16C 28 Normal version M16C 29 Normal version M16C 26T T version M16C 28 T version M16C 29 T version M16C 26T V version M16C 28 V version M16C 29 V version 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 cabl
3. Pin 2 Oo O 0009 Pin 14 8 vee Pin 1 o o o o oo al lis 9 P64 BUSY 10 Vss A 11 P66 RxD is 12 Vss 13 RESET Pin 1 mark 14 ve 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 P65 P66 P67 P64 P85 M16C Tiny P 86 or P16 1 For EPM and GE select one of the following settings 1 EPM P85 Disconnected CE P86 Connected 2 EPM P85 Connected CE P16 Connected Pulled up at 4 7kQ or more Pulled down at 4 7kQ or more 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 Vcc Vcc Vcc connector Pulled up at 4 7kQ or more P65 SCLK P67 TxD P66 RxD M16C Tiny P64 BUSY Figure 4 2 Connection of E8 Emulator and MCU 2 The E8 emulator uses the P86 or P85 and P16 pins for the MCU control Connect the E8 emulator to the MCU pins
4. 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 26 M16C 26A M16C 28 and M16C 29 Pere _ Apr 1 2005 Rev 1 00 UN eS Jun 29 2005 Rev 2 00 E Sales Strategic Planning Div Paplished DI Renesas Technology Corp Edited by Microcomputer Tool Development Department Renesas Solutions Corp 2005 Renesas Technology Corp and Renesas Solutions Corp All rights 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
5. Tf the P86 and CE pins are connected the sub clock function cannot be used Tf the P85 and EPM pins and the P16 and CE pins are connected respectively NMI cannot be used User system connector M16C Tiny Figure 4 3 1 Connection of E8 Emulator and P86 Pin User system connector M16C Tiny P85 EPM Figure 4 3 2 Connection of E8 Emulator and P85 and P16 Pins ENESAS 3 The E8 emulator uses the CNVss pin for the MCU control Connect the E8 emulator to the MCU pins through pull down User system Pulled down at connector 4 7kQ or more CNVss CNVss M16C Tiny Figure 4 4 Connection of E8 Emulator and CNVss Pin 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 Tiny 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 the pull up resistance value as a reference when determining 10 Emulator control circuit Power of the upper 74VLC125A i
6. E8 emulator cannot be controlled And 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 03AAh 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 5 and 6 2 03ECh Port P6 register P6 Bits 4 5 6 and 7 2 O3EEh Port P6 direction register PD6 Bits 4 5 6 and 7 2 025Dh Pin Assignment Control Register 3 PACR Bit 7 2 Do not change the value of the register 2 Do not change the value of the bits listed above When operating this register change it by a bit operating instruction etc 3 Not included in the M16C 26 group 13 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 14 NMI interrupt If NMI interrupts are to
7. Location WDT Firmware location Program 800h Byte Use FFO 00 MIN FOOOO MAX FF 00 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 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 12 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 debugging 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 Tiny Address Description FFFDFh First byte of ID code FFFE3h 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
8. REJ10J0926 0200 T Everywhere you imagine y TE NESAS E8 Emulator EEE gt gt gt EEE Additional Document for User s Manual ROE0O00030KCEO0EP3 Renesas Microcomputer Development Environment System M16C Family M16C Tiny Series Notes on Connecting the M16C 26 M16C 26A M16C 28 and M16C 29 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 originatin
9. 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 15 Reserved area The addresses not specified in the Hardware Manual for M16C 26 M16C 26A M16C 28 and M16C 29 Groups are reserved area Do not change the contents Otherwise the E8 emulator cannot be controlled 16 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 setting the breakpoint at the processing unit where the stop mode or wait mode is cancelled 17 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 Softwar
10. e 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 M16C Tiny Aue MCU signals Pin 1 mark 1 P65 SCLK Connector Seri Lal 2 Vss q 3 CNVss 4 N C P85 EPM 5 P67 TxD 6 Vss 7 P86 CE P16
11. e 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 ar When downloading a user 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 0 area addresses FE000h FFFFFh and block containing the program for the E8 emulator If the
12. g in the use of any product data 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
13. information contained herein 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 Connecting the Emulator with the Pin Assignments of the E8 Connector Example of E8 Connection Differences between the MCUs and the Emulator User System Applicable Tool Chain and Partner Tools
14. of ID code FFFFBh Seventh byte of ID code ID Code verification Please input ID Code 01020304050607 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 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
15. s supplied from Vcc in the user system connector 100k Q 100k Q 10k Q100k Q User system connector 74LVC125A Figure 4 6 Interface Circuit in the Emulator Reference ENESAS Section 5 Differences between the MCUs and the Emulator 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 with the Download emulator firmware mode Table 5 1 Program Area for the E8 Emulator ROM Size Program Area for E8 Emulator Group Type Programming RAM Size Number Area Data Area Vector Area ROM Area RAM Area M30262F3 24KB 1KB M16C 26 M30262F4 32KB 1KB M30262F6 48KB 2KB M30262F8 64KB 2KB M30260F3A 24KB 1KB M30260F6A 48KB 2KB M30260F8A 64KB 2KB M30260F3 24KB 1KB M16C 26A M30260F6 48KB 2KB M30260F8 64KB 2KB FFFE4h FFFE7h M30263F3A 24KB 1KB FFFE8h FFFEBh 2KBofthe 128 bytes programming M30263F6A 48KB 4 KB 2KB FFFECh FFFEFh area 1 M30263F8A 64KB 2KB FFFF4h FFFF7h 1 2 M30280F6 48KB 4KB FFFFCh FFFFFh M30280F8 64KB 4KB M16C 28 M30280FA 96KB 8KB M30281F6 48KB 4KB M30281F8 64KB 4KB M30281FA 96KB 8KB M30290FA 96KB 8KB M16C 29 M30290FC 128KB 12KB M30291FA 96KB 8KB M30291FC 128KB 12KB
16. se 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 Section 6 Applicable Tool Chain and Partner Tools With the M16C Tiny Series E8 emulator you can debug a module created by the inhouse 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 re
17. sides 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 BaseClass public int m_iDerive public DerivedClass m_iDerive 0 void DerivedFunc void 17 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
18. the ES 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 P64 P65 P66 P67 RESET CNVss pins and P86 or P85 and P16 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 stack 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 As the SFR listed in Table 5 4 is used by the program for the E8 emulator do not change a value Otherwise the
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