E1 Emulator Additional Document for User`s Manual

User’s Manual
E1 Emulator
Additional Document for User’s Manual
(Notes on Connection)
Supported Devices:
78K0R Family
All information contained in these materials, including products and product specifications,
represents information on the product at the time of publication and is subject to change by
Renesas Electronics Corp. without notice. Please review the latest information published by
Renesas Electronics Corp. through various means, including the Renesas Technology Corp.
website (http://www.renesas.com).
www.renesas.com
R20UT0851ED0100, Rev. 1.00
October 6, 2011
Notice
•
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Contents
Table of Contents
Chapter 1
1.1
1.2
1.3
Chapter 2
2.1
2.2
2.3
2.4
2.5
Outline ...................................................................................................4
Features ...................................................................................................................................4
Cautions on Using E20 ............................................................................................................4
Configuration of Manuals .........................................................................................................4
Designing the User System .................................................................5
Connecting the Emulator with the User System ......................................................................5
Comumunication Mode ............................................................................................................6
Pin Assignment of the Connector on the User System ...........................................................6
System Configuration...............................................................................................................7
Recommend Circuit between the Connector and the CPU .....................................................8
2.5.1
Recommend Circuit Connection......................................................................................8
2.5.2
Connection of reset pin ....................................................................................................9
Chapter 3
Specification .......................................................................................11
Chapter 4
Notes on Usage...................................................................................12
4.1
4.2
Appendix
List .......................................................................................................................................12
Details ....................................................................................................................................12
Equivalent Circuit for E1/E20-78K0R Connection ............................15
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Outline
Chapter 1 Outline
1.1
Features
E1/E20 Emulator (hereinafter referred to as E1/E20) is an on-chip debug emulator with
flash programming function, which is used for debugging and programming a program to
be embedded in on-chip flash memory microcontrollers. This product can debug with the
target microcontroller connected to the user system, and can write programs to the onchip flash memory of microcontrollers.
1.2
Cautions on Using E20
The functions used for debugging of the 78K0R device by using the E20 are the same as
in the E1. Large trace function, characteristic functions of the E20, cannot be used. The
power supply function from the E20 is not supported.
1.3
Configuration of Manuals
Documentation for the E1/E20 emulator manual is in two parts: the E1/E20 Emulator
User’s Manual and the E1/E20 Emulator Additional Document for User’s Manual (this
manual). Be sure to read both of the manuals before using the E1/E20 emulator.
(1) E1/E20 Emulator User’s Manual
The E1/E20 Emulator User’s Manual has the following contents:
•
Components of the emulators
•
Emulator hardware specification
•
Connection to the emulator and the host computer and user system
(2) E1/E20 Emulator Additional Document for User’s Manual
The E1/E20 Emulator Additional Document for User’s Manual has the following contents:
•
For use in hardware design, an example of connection and the interface circuit
required to connect the emulator.
•
Notes on using the emulator
•
Software specifications and so on for using each microcomputers
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Designing the User System
Chapter 2 Designing the User System
To connect the E1/E20 emulator, a connector for the user system interface cable must be
mounted on the user system. When designing the user system, read this section of this
manual and the hardware manual for the MCUs.
2.1
Connecting the Emulator with the User System
Table 2-1 shows the connector type numbers of the E1 emulators.
Table 2-1 Connector Type Numbers
Type
Manufacturer
Specifications
Number
14-pin
7614-6002
Sumitomo 3M Limited
14-pin straight type (Japan)
Connector
2514-6002
3M Limited
14-pin straight type (other countries)
Figure 2.1 shows examples of the connection between a user system interface cable of
the 14-pin type. Do not mount other components with a height exceeding 10 mm within 5
mm of the connector on the user system. 38-pin of the E20 is not supported. To use the
E20, use the 38-pin/14-pin conversion adapter [R0E000200CKA00] that comes with the
E20 for connection.
Figure 2-1 Connecting the User System Interface Cable to the 14-pin Connector of the E1
Emulator
14-pin user system interface cable
14-pin type connector
User system
Top View
5mm
2
4
6
8
10 12 14
1
3
5
7
9
11 13
5mm
5mm
5mm
Area with limit on mounted components
(heights must be no greater than 10mm)
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Designing the User System
2.2
Comumunication Mode
E1/E20 performs serial communication with the target device on the target system. For
serial communication, 1-wire mode (single-wire UART communication) using the TOOL0
pin, or 2-wire modeusing the TOOL0 and TOOL1 pins is used. Use 1-wire mode when
performing flash programming. Use 1-wire modeor 2-wire mode when performing on-chip
debugging. Differences between 1-wire mode and 2-wire mode are shown below. There
are no functional differences.
Table 2-2 Difference Between 1-Wire Mode and 2-Wire Mode
Communication
Mode.
1-wire mode
During Flash
Programming
No differences
2-wire mode
2.3
During Debuging
User resources secured for debugging
Internal ROM: 1036 bytes
Internal RAM: 6 bytes (stack)
User resources secured for debugging
[Pseudo RRM/DMM function is used]
Internal ROM: 1036 bytes
Internal RAM: 6 bytes (stack)
[Pseudo RRM/DMM function is not used]
Internal ROM: 100 bytes
Internal RAM: 6 bytes (stack)
Pin Assignment of the Connector on the User System
Table 2-3 shows the pin assignments of the 14-pin connectors.
Table 2-2 Pin assignments of the connector (14-pin)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Note 1
Note 2
Note 3
Pin Name
TOOL1
GND Note 2
R.F.U
FLMD0
R.F.U
RESET_IN
TOOL0
VDD
R.F.U
RESET_OUT Note 3
R.F.U
GNDNote 2
RESET_OUTNote 3
GNDNote 2
Input/Output Note 1
Input
Output
Input
Output/Input
Output
Output
-
As seen from E1/E20.
Securely connect pins 2, 12, and 14 of the connector to GND of the user system. These pins are used for electrical grounding as
well as for monitoring of connection with the user system by the E1/E20.
Securely connect both pin 10 and pin 13. These pins are also used to monitor the user system.
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Designing the User System
Table 2-4 Pin Functions
Input/Output Note 1
Pin Name
2.4
Description
RESET_IN
Input
Pin used to input reset signal from the user system
RESET_OUT
Output
Pin used to output reset signal to the target device
FLMD0
Output
Pin used to set the target device to debug mode or
programming mode.
TOOL0
Output/Input
Pin used to transmit command/data to the target
device
TOOL1
Input
Pin used to input clock signal to the target device
R.F.U.
–
This pin is reserved. For the connection of the
reserved pins, see each circuit related to the pins.
System Configuration
Figure 2-2 shows the system configuration used for the E1/E20. For cautions on
connection, refer to the E1/E20 User’s Manual.
Figure 2-2 Connection Diagram of E1/E20
USB Interface cable
Host
machine
User interface cable
E1 emulator
or
E20 emulator
User system
User interface cable (E1)
User interface cable (E20)
38-pin/14-pin
conversion adapter
Remark To use it with the E20, connect the 38-pin/14-pin conversion adapter to the user interface
cable (E20). 38-pin is not supported.
Note 1
As seen from E1/E20
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Designing the User System
2.5
Recommend Circuit between the Connector and the CPU
2.5.1 Recommend Circuit Connection
Refer to Figure 2-3 and design an appropriate circuit.
Be sure to take into consideration the specifications of the target device as well as
measures to prevent noise when designing your circuit.
Figure 2-3 Recommended Circuit Connection
VDD
Target connector
TOOL1
GND
R.F.U.
FLMD0
R.F.U.
RESET_IN
TOOL0
VDD
R.F.U.
RESET_OUT
R.F.U.
GND
RESET_OUT
GND
1
VDD
Target device
3 k~10 kΩ
VDD
TOOL1
2
3
4
FLMD0
5
VDD
Note1
6
3 k~10 kΩ
7
8
9
TOOL0
VDD
10 kΩ
10
11
Note3
RESET Note2
VDD
12
13
14
1 kΩ Note2
VSS
Reset connector
RESET signal
Note 1
The circuit enclosed by a dashed line is not required when only flash programming is performed.
Note 2
Refer to 2.5.2 connection of reset pin (1) Automatically switching the reset signal via resistor about the
pull-up resistor value of the reset circuit.
Note 3
This is for pin processing when not used as a device.
Caution
•
Securely connect both pin 10 and pin 13. These pins are also used to monitor the
user system.
•
The circuits and resistance values listed are recommended but not guaranteed.
Determine the circuit design and resistance values by taking into account the
specifications of the target device and noise. For flash programming for mass
production, perform sufficient evaluation about whether the specifications of the
target device are satisfied.
•
For processing of pins not used by the E1/E20, refer to the user’s manual of the
device.
•
Securely connect pins 2, 12, and 14 of the connection to GND of the user system.
These pins are used for electrical grounding as well as for monitoring of connection
with the user system by the E1/E20.
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Designing the User System
2.5.2 Connection of reset pin
This section describes the connection of the reset pin, for which special attention must be
paid, in circuit connection examples shown in the previous section.
During on-chip debugging, a reset signal from the target system is input to E1/E20,
masked, and then output to the target device. Therefore, the reset signal connection
varies depending on whether E1/E20 is connected.
For flash programming, the circuit must be designed so that the reset signals of the user
system and E1/E20 do not conflict.
Select one of the following methods and connect the reset signal in the circuit. The
details of each method are described on the following pages.
(1)
Automatically switching the reset signal via series resistor (recommended;
described in recommended circuit connection in the previous section)
(2)
Manually switching the reset signal with jumper
(3)
Resetting the target device by power-on reset (POC) only
(1) Automatically switching the reset signal via series resistor
Figure 2-4 illustrates the reset pin connection described in 2.5.1 Recommend Circuit
Connection.
This connection is designed assuming that the reset circuit on the target system contains
an N-ch open-drain buffer (output resistance: 100Ω or less). The VDD or GND level may
be unstable when the logic of RESET_IN/OUT of E1/E20 is inverted, so observe the
conditions described below in Remark.
Figure 2-4 Circuit Connection with Reset Circuit That Contains Buffer
RESET_OUT
Reset circuit
Target device
Target connector
10, 13
VDD
RESET
R1
R2
VDD
Buffer
6
RESET_IN
Remark
Make the resistance of R1 at least ten times that of R2, R1 being 10 kΩ or more. Pull-up resistor R2 is
not required if the buffer of the reset circuit consists of CMOS output. The circuit enclosed by a dashed
line is not required when only flash programming is performed.
Figure 2-5 illustrates the circuit connection for the case where the reset circuit on the
target system contains no buffers and the reset signal is only generated via resistors or
capacitors. Design the circuit, observing the conditions described below in Remark.
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Designing the User System
Figure 2-5 Circuit Connection with Reset Circuit That Contains No Buffers
RESET_OUT
Reset circuit
Target device
Target connector
10, 13
VDD
RESET
R1
R2
6
RESET_IN
Remark
Make the resistance of R1 at least ten times that of R2, R1 being 10 kΩ or more. The circuit enclosed by
a dashed line is not required when only flash programming is performed.
(2) Manually switching the reset signal with jumper
Figure 2-6 illustrates the circuit connection for the case where the reset signal is switched
using the jumper, with or without E1/E20 connected. This connection is simple, but the
jumper must be set manually.
Figure 2-5 Circuit in connection for Switching Reset Signal with Jumper
Target connector
RESET_OUT
Jumper
10, 13
1
Target device
RESET
2
3
Reset circuit
6
RESET signal
RESET_IN
Jumper setting
When E1/E20 is connected:
When E1/E20 is not connected:
1-2 shorted
2-3 shorted
(3) Resetting the target device by power-on reset (POR) only
Figure 2-7 illustrates the circuit connection for the case where the target device is only
reset via POC without using the reset pin. RESET_OUT becomes active when power is
applied to E1/E20. Even if power supply to the target system is turned off during
debugging, pseudo POC function emulation is available because RESET_OUT becomes
active.
Figure 2-6 Circuit Connection for the Case Where Target Device Is Only Reset via POC
VDD
Target connector
1 k to 10 kΩ
RESET_OUT
RESET_IN
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October 2011
10, 13
Target device
RESET
6
Page 10 of 18
Specification
Chapter 3 Specification
Specifications are shown in Table 3-1 below.
Table 3-1 E1/E20 Specification List
Middle Item
Large
Small Item
E1
←
User system interface
14-pin connector
←
Host machine interface
USB2.0 (Full speed/High speed)
←
Connection to the user system
Connection by the provided user-system
←
interface cable
Power supply function
3.3 V or 5.0 V, set in software tool, can
Cannot supply
be supplied to the user system (with
power.
current up to 200 mA)
Power supply for the emulator
No need (the host computer supplies
power through the USB)
←
Software break
2000 points
←
Hardware break
1 point (commonly used by execution
and access)
←
Forced break
Available
←
Number of events
1 point (commonly used by execution
and access)
←
Available function
Hardware break only
←
Unavailable
←
Measurement item
From run to break
←
Performance
Resolution 100 μs, Max. measurement
←
time 100 hours
Break
Event
Related
debugging
Trace
Performance measurement
Related
programming
E20
Computer equipped with a USB port
OS depends on the software.
Target host machine
Hardware
Common
Specification
Pseudo realtime RAM monitor (RRM)
Available (CPU is used when
monitoring)
Dynamic memory modification (DMM)
Available (CPU is used when changing) ←
Hot plug-in
Unavailable
←
Security
10-byte ID code authentication
←
Clock supply
Clock mounted on the user system can
←
be used
Security flag setting
Available
Standalone operation
Unavailable (must be connected to host
←
machine)
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←
←
Page 11 of 18
Notes on Usage
Chapter 4 Notes on Usage
This section describes cautions on use of the E1/E20 emulator. To use the E1/E20
properly, read the cautions thoroughly.
4.1
List
Table 4-1 List of notes on usage
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
4.2
Item
Handling the device used for debugging
Flash self programming
Operation after a reset
Debugging with real machine running without using E1/E20
Operation when debugger starts
Debugging after program is written by flash programming
LVI default start function setting (address C1H)
On-chip debugging option byte setting (address C3H)
FLMD0 pin output status while debugger is running
Operation at voltage with which flash memory cannot be written
Debugging in 1-wire mode
Pseudo real-time RAM monitor function
Relation between Standby function and Break function
Cautions on using step-in (step execution)
Step-in (step execution) of Division operation
Details
No. 1 Handling of device that was used for debugging
Do not mount a device that was used for debugging on a mass-produced product,
because the flash memory was rewritten during debugging and the number of
rewrites of the flash memory cannot be guaranteed.
Do not embed the debug monitor program into mass-produced products.
No. 2 Flash self programming
If a space where the debug monitor program is allocated is rewritten by flash self
programming, the debugger can no longer operate normally. This caution also applies
to boot swapping for such an area.
No. 3 Operation after reset
After an external pin reset or internal reset, the monitor program performs debug
initialization processing.
Consequently, the time from reset occurrence until user program execution differs
from that in the actual device operation. If “No” is selected in Permit flash
programming in property of the debug tool, the time until the user program is
executed compared with the time when “Yes” is selected is delayed several 100 ms.
No. 4 Debugging with real machine running without using E1/E20
If debugging is performed with a real machine running, without using E1/E20, write
the user program using the Renesas Flash Programmer. Programs downloaded by
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Notes on Usage
the debugger include the monitor program, and such a program malfunctions if it
includes processing to make the TOOL0 pin low level.
No. 5 Operation when debugger starts
When the debugger is started, if “Communicatuin method” in the property of the
debug tool is different from the setting for the previous debugging, the internal flash
memory is erased.
No. 6 Debugging after program is written by flash programming
If a program is written to the internal flash memory using the Renesas Flash
Programmer or PG-FP5, debugger erase internal flash ROM memory automatically
and download the program to the memory area.
No. 7 LVI default start function setting (address C1H)
During debugging, the debug monitor program stops the LVI default start function at
address C1H. Consequently, the LVI default start function is kept stopped even after
debugging is completed, unless the setting to address C1H is changed through flash
programming.
No. 8 On-chip debugging option byte setting (address C3H)
The on-chip debugging option byte setting is rewritten arbitrarily by the debugger.
No. 9 FLMD0 pin output status while debugger is running
In accordance with the setting in Permit flash programming in property of the
debugger, the FLMD0 pin output status while the debugger is running changes as
follows. Rewriting by flash self-programming is not possible when the output status is
low level.
- When “Yes” is selected: High level (low level for about 100 μs after reset release)
- When “No” is selected: Low level
No. 10 Operation at voltage with which flash memory cannot be written
If any of the following debugger operations <1> to <7>, which involve flash memory
rewriting, is performed while flash memory cannot be rewritten, the debugger
automatically changes the register setting so as to enable flash memory rewriting,
and restores the register setting after the operation is completed. If any of the
following operations <1> to <7> is performed while flash memory rewriting has been
disabled or operation is performed at a voltage with which flash memory cannot be
rewritten, however, the debugger outputs an error and the operation is ignored.
To prevent the flash memory from being rewritten, select “No” in permit flash
programming in property of debug tool. To prevent the frequency from being switched
automatically, select “User” in the Monitor clock in property of debug tool.
<1> Writing to internal flash memory
<2> Setting or canceling of software breakpoint
<3> Starting execution at the set software breakpoint position
<4> Step execution at the set software breakpoint position
<5> Step-over execution, Return Out execution
<6> Come Here
<7> If “Yes” is selected in Permit flash programming in property of debug tool, the
following operations cannot be performed.
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Notes on Usage
a) Setting, changing, or canceling of hardware breaks
b) Masking/unmasking of internal reset
c) Switching of peripheral breaks
No. 11 Debugging in 1-wire mode
In the condition that debugging is performed in 1-wire mode, when the internal highspeed oscillator is used for the CPU operating clock, breaks may not occur normally if
the frequency variation between debugger startup and break occurrence (except for
when changing the register) is too large. This situation may occur when the variation
of operating voltage or temperature is too large.
No. 12 Pseudo real-time RAM monitor function
Note the following points when using the pseudo real-time RAM monitor function.
<1> Standby mode (HALT or STOP) may be cancelled during monitoring.
<2> The pseudo real-time RAM monitor function does not operate while the CPU
operating clock is stopped.
<3> If the targets to be monitored are too numerous, the operability of the debugger
may be affected because the monitoring speed is slow when using the pseudo
RRM function in 1-wire mode.
No. 13 Relation between Standby function and Break function
The break is interrupt function of CPU. The standby mode is released by the break for
using the following debug function.
- Stops execution of the user program.
- Step execution of the standby instruction (Stops user program after execution
instruction)
- Pseudo real-time RAM monitor function (Break When Readout)
- Pseudo Dynamic Memory Modification (Break When Write)
- Breakpoint setting executing of the user program.
No. 14 Cautions on using step-in (step execution)
The value of some SFRs (special function registers) might remain unchanged while
stepping into code. If the value of the SFRs does not change while stepping into code,
operate the microcontroller by continuously executing the instructions instead of
executing them in steps.
Stepping into code:
Instructions in the user-created program are executed one by
one.
Continuous execution: The user-created program is executed from the current PC
value.
No. 15 Step-in (step execution) of Division operation
When the instruction which sets (1) the bit 0 (DIVST) of Multipllcation/Division control
register (MDUC) is stepped, the division operation is not finished.
The step execution of the division operation by a C source level is not relevant.
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Notes on Usage
Appendix Equivalent Circuit for E1/E20-78K0R Connection
The internal equivalent circuit related to the communication interface between the
E1/E20 and user system is shown below. An example of circuit connection for the
user system is shown in this document. Please use it as a reference when
determining parameters in board design.
Figure A-1 E1/E20 Equivalent Circuit
Inside the E1/E20
Target system side
(Pin numbers of the target connector)
VDD
100 kΩ
SN74LVC8T245
22 Ω
6
22 Ω
4
RD74LVC125B
100 kΩ
VDD
100 kΩ
SN74LVC2T45
22 Ω
1
V DD
VDD
1 kΩ
RD74LVC125B
10 kΩ
22 Ω
7
V DD
SN74LVC8T245
22 Ω
100 kΩ
10
V DD
RD74LVC125B
100 kΩ
SN74LVC8T245
22 Ω
13
DTC124EE
R20UT0851ED0100 Rev. 1.00
October 2011
Page 15 of 18
E1 Emulator
Additional Document for User's Manual (Notes on Connection for 78K0R)
Publication Date:
Published by:
Oct 06, 2011
Rev.1.00
Renesas Electronics Europe GmbH
http://www.renesas.com
SALES OFFICES
Refer to "http://www.renesas.com/" for the latest and detailed information.
Renesas Electronics America Inc.
2880 Scott Boulevard Santa Clara, CA 95050-2554, U.S.A.
Tel: +1-408-588-6000, Fax: +1-408-588-6130
Renesas Electronics Canada Limited
1101 Nicholson Road, Newmarket, Ontario L3Y 9C3, Canada
Tel: +1-905-898-5441, Fax: +1-905-898-3220
Renesas Electronics Europe Limited
Dukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, U.K
Tel: +44-1628-585-100, Fax: +44-1628-585-900
Renesas Electronics Europe GmbH
Arcadiastrasse 10, 40472 Düsseldorf, Germany
Tel: +49-211-65030, Fax: +49-211-6503-1327
Renesas Electronics (China) Co., Ltd.
7th Floor, Quantum Plaza, No.27 ZhiChunLu Haidian District, Beijing 100083, P.R.China
Tel: +86-10-8235-1155, Fax: +86-10-8235-7679
Renesas Electronics (Shanghai) Co., Ltd.
Unit 204, 205, AZIA Center, No.1233 Lujiazui Ring Rd., Pudong District, Shanghai 200120, China
Tel: +86-21-5877-1818, Fax: +86-21-6887-7858 / -7898
Renesas Electronics Hong Kong Limited
Unit 1601-1613, 16/F., Tower 2, Grand Century Place, 193 Prince Edward Road West, Mongkok, Kowloon, Hong Kong
Tel: +852-2886-9318, Fax: +852 2886-9022/9044
Renesas Electronics Taiwan Co., Ltd.
7F, No. 363 Fu Shing North Road Taipei, Taiwan
Tel: +886-2-8175-9600, Fax: +886 2-8175-9670
Renesas Electronics Singapore Pte. Ltd.
1 harbourFront Avenue, #06-10, keppel Bay Tower, Singapore 098632
Tel: +65-6213-0200, Fax: +65-6278-8001
Renesas Electronics Malaysia Sdn.Bhd.
Unit 906, Block B, Menara Amcorp, Amcorp Trade Centre, No. 18, Jln Persiaran Barat, 46050 Petaling Jaya, Selangor Darul Ehsan, Malaysia
Tel: +60-3-7955-9390, Fax: +60-3-7955-9510
Renesas Electronics Korea Co., Ltd.
11F., Samik Lavied' or Bldg., 720-2 Yeoksam-Dong, Kangnam-Ku, Seoul 135-080, Korea
Tel: +82-2-558-3737, Fax: +82-2-558-5141
© 2010 Renesas Electronics Corporation. All rights reserved.
Colophon 1.0
E1 Emulator
Additional Document for User’s Manual
(Notes on Connection)