E8 Emulator Additional Document for User's Manual
Contents
1. 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 Connecting the Emulator with the User System a ce eee eRe eae Ah ta 1 Pin Assignments of the E8 Connector 0 cccecececeeeeeeeeeeeeaeeeeeeeeceaeeecaaeeseaeeeceaeeesaaesseaeeseeeeescaeeesaeeeeneeees 3 Example of E8 Connectloni sjccuter iis cy teenie ahs naa aaraa a erates ee Ait ci Geet2. the program for the E8 emulator 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 Do not change the registers by other than the user program otherwise the E8 cannot be controlled Table 4 4 SFR Used by Program for E8 Emulator Address Register Symbol O00Ah Protect register PRCR 0020h High speed on chip oscillator A control register 0 HRAO 0021h High speed on chip oscillator A control register 1 HRA1 OOBOh UART transmission control register 2 UCON 12 Reserved area The addresses not specified in the Hardware Manual for R8C 14 R8C 15 R8C 16 and R8C 17 Groups are reserved area Do not change the contents Otherwise the E8 emulator cannot be controlled 13 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 14 Debugging of a watchdog timer During the program for the E8 emulator operation the watchdog timer is being refreshed Note that if a memory is accessed via the memory reference or modific
3. KB R8C 15 R5F21152 8 KB 2 KB R5F21153 12 KB 2 KB R5F21154 16 KB 2 KB FFE4h FFE8h cia A a a a R8C 16 ere ie 8 KB FEF4h FFE7h p ROPALI TEARB EF eh FFFBh R5F21164 16 KB R8C 17 R5F21172 8 KB 2 KB R5F21173 12 KB 2 KB R5F21174 16 KB 2 KB 2400h 27FFh or Note C000h C7FFh Note If your MCU is R5F21154 or R5F21174 the dialog box shown in Figure 4 1 is displayed when starting up the HEW Select the location of a program for the E8 emulator with this dialog box The location of the program area is 2400h 27FFh and C000h C7FFh when selecting Data Flash Area and User Flash Area respectively When the HEW is started with the Does not download emulator firmware mode select the area where the firmware has been written to previously zeENESAS Firmware Location Please select firmware location C Data Flash Area User Flash Area Figure 4 1 Firmware Location Dialog Box 2 ID code of flash memory When the 7 bytes ID code Table 4 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 4 2 which is displayed when starting up the HEW 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 content
4. REJ10J0767 0300Z Everywhere you imagine gE NESAS E8 Emulator Additional Document for User s Manual E8 R0E000080KCE00EP1 Renesas Microcomputer Development Environment System M16C Family R8C Tiny Series Notes on Connecting the R8C 14 R8C 15 R8C 16 and R8C 17 Rev 3 00 Nov 1 2004 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 d
5. a eee 5 Differences between the MCUs and the EMmulator 0 c cceceeeeceeeceeeeeeeeeeeeeeceeeeeeaaeeeeaeeeeeeesaeesaaeeeeeeeee 9 Applicable Tool Chain and Partner Tools Section 1 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 cable can be connected When designing the user system refer to Figure 2 1 Pin Assignments of the E8 Connector and Figure 3 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 1 1 shows the recommended connector for the emulator Table 1 1 Recommended Connector Type Number Specifications 2514 6002 3M Limited 14 pin straight type Connect pins 2 4 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 go Connector g User system Pin 2 Figure 1 1 Connecting the User System Interface Cable to the User System 2eENESAS 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 em
6. and third party products listed in Table 5 1 below Table 5 1 Applicable Tool Chain and Partner Tools Tool chain NC30WA V 5 20 Release 1 or later NC8C V 5 30 Release 1 or later Partner tools Tasking CM16 V 2 3 IAR EWM16C V 2 12 15 7eENESAS E8 Emulator Additional Document for User s Manual Notes on Connectiong the R8C 14 R8C 15 R8C 16 and R8C 17 Jul 16 2004 Rev 1 00 Publication Date Sep 16 2004 Rev 2 00 Nov 1 2004 Rev 3 00 Sales Strategic Planning Div published Dy Renesas Technology Corp Microcomputer Tool Development Department Edited by Renesas Solutions Corp 2004 Renesas Technology Corp and Renesas Solutions Corp All rights reserved Printed in Japan E8 Emulator Addtional Document for User s Manual 2tENESAS Renesas Technology Corp 2 6 2 Ote machi Chiyoda ku Tokyo 100 0004 Japan
7. ation the watchdog timer will be refreshed through the intervention of the program for the E8 emulator 15 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 2eENESAS 16 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 NOP NOP INT 3 NSE 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 lt NOP REIT Execution with the GO command 17 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 and the hardware breaks you set become invalid while all the PC breaks remain valid 18 Note on PC break point When downl
8. ecting the open collector output buffer so that reset input can be accepted from the emulator Vcc User system connector R8C 14 R8C 15 Pulled up at R8C 16 4 7kQ or more R8C 17 Open collector buffer Figure 3 3 Example of a Reset Circuit 3 Connect Vss and Vcc with the Vss and Vcc of the MCU respectively 4 Connect nothing with N C 5 The amount of voltage permitted to input to Vcc must be within the guaranteed range of the microcomputer 7eENESAS 6 Figure 3 4 shows the interface circuit in the emulator Use this figure as a reference when determining the pull up resistance value Emulator control circuit User system connector Vec 8 74LVC125A 74LVC125A Power of the upper 74LVC125A is supplied from Vcc in the user system connector Figure 3 4 Interface Circuit in the Emulator Reference 7eENESAS 7eENESAS Section 4 Differences between the MCUs and the Emulator 1 Program area for the E8 emulator Table 4 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 HEW with the Download emulator firmware mode Table 4 1 Program Area for the E8 Emulator Type ROM Size Program Area for E8 Emulator troup Number a Data Area Vector Area ROM Area R8C 14 R5F21142 8 KB R5F21143 12 KB R5F21144 16
9. emulator operates changing the CPU clock to the internal high speed on chip oscillator approx 8 MHz However the peripheral features operate with the clock specified by the user program 5 Reset To reset the MCU when debugging by the E8 emulator select Debug gt Reset CPU or use the RESET command If the emulator is reset differently the E8 cannot be controlled 6 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 7 The emulator communicates with the MCUs by using the MODE and RESET pins 8 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 9 The emulator uses up to four word stack pointer when a user program breaks Accordingly reserve the four word addresses for the stack area 11 zeENESAS 10 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 11 SFR used by the program for the E8 emulator As the SFR listed in Table 4 4 is used by
10. iagrams 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 5
11. oading a user program after changing it the set address of PC break may not be corrected normally depending on the changes After downloading a user program please check the setting of PC break by event point window and reset it 19 Note on setting the break condition of the hardware breaks When selecting the normal address bus selecting Address radio button of Break condition dialog box as a condition for the address bus do not set the following addresses Otherwise a malformed break may occur Address in the interrupt vector table Address set in the interrupt vector table interrupt routine start address Branched address of the branching instruction Both fixed vector table and variable vector table are included with the interrupt vector table above 13 2eENESAS 20 Note on debugging in CPU rewrite mode 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 14 7eENESAS Section 5 Applicable Tool Chain and Partner Tools With the R8C Tiny Series E8 emulator you can debug a module created by the inhouse tool chain
12. s of the user program are input into the ID code area Table 4 2 ID Code Storage Area of R8C 14 15 16 17 Address Description FFDFh First byte of ID code FFF3h Second byte of ID code FFEBh Third byte of ID code FFEFh Fourth byte of ID code FFF3h Fifth byte of ID code FFF7h Sixth byte of ID code FFFBh Seventh byte of ID code ID Code Please input ID Code 01020304050607 Cancel Figure 4 2 ID Code Dialog Box Note on Writing in 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 zeENESAS 3 When the emulator system is initiated it initializes the general registers and part of the control registers as shown in Table 4 3 Table 4 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 0 1 0000h FB bank 0 1 0000h INTB 0000h 0000h O5FFh 0000h 0000h 4 Operation clock during a break During a user program break the
13. ulator similarly to the user system zeENESAS Section 2 Pin Assignments of the E8 Connector Figure 2 1 shows the pin assignments of the connector R8C 14 15 16 17 PUMO MCU signals Pin 1 mark 1 N C Connector Pe 2 Vss 3 N C 4 Vss 5 N C 6 Vss 7 MODE Pin2 gt O O O O O 0 0 Pin 14 8 MEG Pint O O O O O O 0 Pin 13 3 NG 1 10 Vss A 11 N C 12 Vss 13 RESET Pin 1 mark 14 Vss Figure 2 1 Pin Assignments of the E8 Connector 7eENESAS zeENESAS Section 3 Example of E8 Connection Figure 3 1 shows the connecting example Pulled up at 4 7kO Vcc MODE pin 7 Pulled up at 4 7kQ or more User system 14 pin 2 54 mm pitch connector 1 Open collector buffer Figure 3 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 3 1 zeENESAS Notes 1 The E8 emulator uses the MODE pin for the MCU control and the forced break control Connect the emulator to the MCU pins through pull up User system Veo Pulled up at connector 4 7ka R8C 14 R8C 15 R8C 16 R8C 17 Figure 3 2 Connection of E8 Emulator and MODE Pin 2 The RESET pin is used by the emulator Create the following circuit by conn
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