Atmel AT90ICEPRO User manual

AT90ICEPRO User Guide 1-1
Section 1
Introduction
The AT90ICEPRO is a real time In-Circuit Emulator (ICE) for all AT90S1200, -S2313,
-S2323, -S2333, -S2343, -S4414, -S4433, -S4434, -S8515 and -S8535 devices. It can
be upgraded to support future AVR®parts. It is controlled by AVR Studio, which is a pro-
fessional front-end for both high-level and assembly level debugging. AVR Studio is
described in Section 1 in the Development Tools User Guide and must be studied care-
fully in order to take full advantage of this product.
The AVR AT90ICEPRO ICE system consist of the following elements:
■AVR ICE Unit
■Pod card AT90ADCPOD
■Pod Cable
■AT90S1200/-2313 probe with cable (DIL20)
■AT90S4414/-8515/-4434/-8535 probe with cable (DIL40)
■AT90S2323/-2343 probe with cable (DIL8)
■AT90S2333/-4433 probe with cable (DIL28)
■A RS-232 cable
■A Power Supply unit
■Documentation
Rev. 1024B–01/99
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Introduction
1-2 AT90ICEPRO User Guide
Figure 1-1. AVR AT90ICEPRO with AT90ADCPOD
The AVR ICE unit is the main part of the AVR AT90ICEPRO system. AVR Studio, which
runs on a host PC, controls the ICE unit. The AVR ICE unit must be connected to an
available RS-232 port on the host PC with the supplied RS-232 cable. AVR Studio auto-
matically detects if there is an emulator present on one of the PC’s serial ports. Note
that if no ICE is found,
AVR Studio will show “Simulator” in the lower right corner of the
main window. If the ICE is found, “AVR Emulator” will be indicated and your connections
are correct. AVR Studio will issue a warning if a program previously run in emulator
mode is started in simulator mode.
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Introduction
AT90ICEPRO User Guide 1-3
Figure 1-2. AT90ADCPOD
AT90ADCPOD is the pod card used for the processors, AT90S1200, -S2313, -S2323, -
S2333, -S2343, -S4414, -S4433, -S4434, -S8515, and -S8535. The pod contains the
analog comparator, the analog to digital converter, a clock circuit for handling of XTAL
and TOSC signals from the target application, a reset button and a voltage conversion
circuit. 11 different jumpers and one switch can be set on the pod card to select between
the different functions.
The pod card is connected to the AVR ICE unit using the pod cable (the wide cable),
and to the user application using the 8-pin, 20-pin, 28-pin, or 40-pin probe.
Note: It is extremely important that the probe cable is correctly connected to the user
application. The colored wire of the probe cable indicates pin 1 of the AVR
device.
Figure 1-3. AVR ICEPRO Front Panel
Figure 1-4. AVR ICEPRO Back Panel
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Introduction
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AT90ICEPRO User Guide 2-1
Section 2
Preparing the
AVR
AT90ICEPRO
System for Use
Complete the following procedure in order to start using the AVR ICE.
Before connecting the probe cable to the user application:
■Connect the pod card to the AVR ICE unit with the pod cable.
■Connect the appropriate probe to the pod.
■Connect the RS-232 cable between the AVR ICE unit and an available serial port on
the host PC.
■Connect power supply (9 - 15 VDC) to the AVR ICE unit.
■Turn the power on and check that the red LED marked “POWER” is lit.
■After a short time (≤10 sec.), the green LED marked “READY” will be lit and the AVR
ICEPRO system is ready.
■Turn off the power.
Plug the probe into the application, paying attention to connect it correctly. If it is not
connected correctly, the AVR AT90ICEPRO system may be damaged. The colored wire
of the probe cable indicates pin 1 of the AVR device.
■When the probe is correctly connected to the application, check the jumper marked
“EXT. POWER” on the probe circuit board. If the application is powered from the AVR
ICE unit, the jumper must be mounted. If the application is going to use its own power
supply, the jumper must be removed.
■Make sure that all other jumpers and switches (clock, timer, analog comparator and
device) are set according to your application. Details on these jumper settings are
located in Section 4.
■When all jumpers are set correctly, turn on the power. When the green LED is lit, the
AVR AT90ICEPRO system is ready for use. Start AVR Studio, and begin your AVR
emulation session.
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2-2 AT90ICEPRO User Guide
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AT90ICEPRO User Guide 3-1
Section 3
Select Between
Different AVR Devices
The selection between different AVR devices must be done both in AVR Studio and on
the pod card. In AVR Studio, choose the device you want to emulate in the Device menu
in Emulator Options. On the pod card, make sure to use the appropriate probe cable (20
pins for 20 pin device and so on) and connect your application to the connector labeled
with the correct part number. Please note that it may damage your AT90ICEPRO if you
plug the probe cable into the wrong connector.
To use AT90S2323 ar AT90S2343, the jumpers on the connectors labeled PB3 and
PB4 must be set. Table 3-1 below shows how to set these jumpers.
For other devices these jumpers are not used.
To use AT90S2333, AT90S4433, AT90S4434 or AT90S8535, the 10 lead cable on the
pod must be mounted. Table 3-2 below shows where to connect this cable.
For other devices this cable is not used.
Table 3-1. Jumper Settings when Selecting between AT90S2323 and AT90S2343
Device PB3 PB4
AT90S2323 OFF OFF
AT90S2343 with external clock OFF ON
AT90S2343 with internal clock ON ON
Table 3-2. Connections of 10-lead cable
Device 10-lead cable
AT90S2333 or AT90S4433 ADC and ADC28
AT90S4434 or AT90S8535 ADC and ADC40
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AT90ICEPRO User Guide 4-1
Section 4
The AVR AT90ICEPRO
Power System
The AVR AT90ICEPRO system has an internal power regulator that can deliver 15W of
power at 5V. The AVR ICE itself uses about 10W, so if the user application is powered
from the AVR AT90ICEPRO system, it can not use more then 5 W (i.e. 5V/1A). If this
value is exceeded, the AVR AT90ICEPRO system may be damaged or not work prop-
erly.
The power supply delivered with your AT90ICEPRO is dimensioned to meet the require-
ments of the emulator. If another power supply is used, it should supply a voltage
between 9 and 15 VDC, and minimum 20W. The battery eliminator connector on the AVR
AT90ICEPRO system is a standard type with 2.1 mm center tap. Ground should be con-
nected to the center tap.
If the target application needs to be powered from the emulator, the jumper labeled
“EXT.POWER” should be mounted. Jumpers labeled “PW2”, “PW1”, and “PW0” can all
be removed when external power is selected.
If the target application runs on a supply voltage other than 5V, and you want to emulate
your system at that voltage, the jumper named “EXT.POWER” must be removed. The
pod card must also be set to convert voltages to the required voltage. Use Figure 13-2
to find what the settings on the jumpers named “PW2”, “PW1”, and “PW0” should be.
Figure 4-1. Jumper Settings
Target VCC PW2 PW1 PW0
2.7 - 2.9 V
3.0 - 3.3 V
3.4 - 3.7 V
3.8 - 4.1 V
4.2 - 4.5 V
4.6 - 4.8 V
4.9 - 5.1 V
5.2 - 5.5 V
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The AVR AT90ICEPRO Power System
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AT90ICEPRO User Guide 5-1
Section 5
The
AVR
AT90ICEPRO Clock System
The AVR AT90ICEPRO system can use one out of three available clock sources; the
programmable internal clock in the ICEPRO, a crystal or an external oscillator in the
user application.
The internal clock can be adjusted between 400 kHz and 20 MHz. Any frequency within
this range can be selected, and will be produced with an accuracy better than 200 PPM
for most frequencies.
Note:
The breakpoint logic will not work properly at clock frequencies above 10 MHz.
If an external clock source in the user application will be used, this can be in the range
between 32.768 kHz and 10 MHz. To use an external clock source, select External
Oscillator in the Emulator Options menu in AVR Studio. It is important to select the
proper range in the Clock Range menu to make the clock system work properly with an
external crystal.
On the pod card, the XTAL pins is connected to the ICE by using the 2-wire cable. Con-
nect from J103 to the 2-pin header nearest the pod cable connector you are using (see
Table 5-1).
Note:
Pin 1 on each connector is labeled with *.
If the clock source from the user application is a crystal, jumper J101 must be left open.
If the clock source from the user application is an oscillator, jumper J101 must be
shorted with a jumper. The switch S101 must be in position OFF in both cases.
Long leads from your external crystal to the oscillator circuit on the pod may cause you
problems. It is possible to mount a crystal in the socket near J103. Do not use the 2-wire
cable if you choose this option. If the crystal frequency is below 1.000 MHz, this should
be selected in the Clock Range menu in Emulator Options in AVR Studio and S101
should be in position ON. S101 should be in position OFF under all other circumstances.
Note:
A crystal cannot be used with S2343 devices.
Table 5-1.
Pin Connection
Device Connect J103 and …
S1200 or S2313 J305
S4414 or S8515 J306
S2313 or S2343 J307
S4434 or S8535 J308
S4433 or S2333 J309
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The AVR AT90ICEPRO Clock System
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AT90ICEPRO User Guide 6-1
Section 6
The AVR AT90ICEPRO Reset System
The AVR AT90ICEPRO system has two independent reset systems. One is for the AVR
AT90ICEPRO system itself, and the other is for the emulated AVR device. The ICE
reset button is placed on the back panel of the box. The button is labeled “ICE RESET”,
and is hidden in the back panel for safety reasons. If the emulator starts to behave
unpredictably, use a thin tool to push this reset button. The green LED will be turned off
for a while, and will be switched on again when the system is ready. When the ICE reset
button is pressed, the program memory is cleared, thus the project file must be closed in
AVR Studio and then reopened.
The AVR reset system can reset the emulated device when the device is running and
stopped. This reset can be activated from several sources:
■The push-button marked “AVR RESET” on the back panel of the AVR ICE unit (Only
when running)
■The push-button marked “RESET” on the Pod (Only when running)
■The reset button in AVR Studio. Note that the reset button in AVR Studio will stop the
emulation process if it is running when the button is pushed.
■A reset button placed in the user application (Only when running)
Please note that only a reset from the user application will reset other components in
your system dependent on the AVR’s RESET pin.
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The AVR AT90ICEPRO Reset System
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AT90ICEPRO User Guide 7-1
Section 7
The Timer Oscillator
Note:
This section only applies to S4434 and S8535.
A 32.768 kHz crystal is mounted on the pod for use with the Timer oscillator. It is impos-
sible to emulate the Timer oscillator with a crystal on the target application due to the
long leads from the target application to the oscillator circuit. If an external oscillator out-
put is used as the clock source of the Timer oscillator, mount a jumper on connector
J104.
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The Timer Oscillator
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AT90ICEPRO User Guide 8-1
Section 8
The Analog Comparator
The jumpers on connectors J105 and J106, labeled S0 and S1, must be set correctly to
make the analog comparator work properly.
Figure 8-1. Jumpers J105 and J106
Target VCC S1/J105 S0/J106
S1200, S2313
S4414, S4434, S8515, S8535
S2333, S4433
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AT90ICEPRO User Guide 9-1
Section 9
Connectors not Described
in this Document
The connectors not described in this document are intended for future use. The connec-
tor labeled RST\ must have it’s jumper placed in position ON. The 6-pin header connec-
tor is intended for possible upgrades of the SW on your pod card.
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Connectors not Described in this Document
9-2 AT90ICEPRO User Guide
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