HEADER 3 HEADER 4
No. Name Function No. Name Function
1 - Not connect 1 AVCC ADC power
supply input
2 - Not connect 2 AGND Ground
3 - Not connect 3 AREF AREF
4 - Not connect 4 PC.0 Port C bit 0
5 - Not connect 5 PC.1 Port C bit 1
6 - Not connect 6 PC.2 Port C bit 2
7 ADC7 ADC ch. 7 7 PC.3 Port C bit 3
8 ADC6 ADC ch. 6 8 PC.4 Port C bit 4
9 PC.5 Port C bit 5 9 PC.5 Port C bit 5
10 PC.4 Port C bit 4 10 ADC6 ADC ch. 6
11 PC.3 Port C bit 3 11 ADC7 ADC ch. 7
12 PC.2 Port C bit 2 12 PGND Ground
13 PC.1 Port C bit 1 13 VCC Power
supply input
14 PC.0 Port C bit 0 14 - Not connect
15 - Not connect 15 - Not connect
16 - Not connect 16 - Not connect
Important!
•AVCC and VCC are connected by an inductor.
•PGND and AGND are connected by lines on the
PCB.
•Port D on the IC will appear as PORT E on the DT-
COMBO BA IC BA E BOARD.
•When using Port C as ADC, PORT F on the DT-
COMBO BA IC BA E BOARD can also be used.
•Pay attention PORT C and PORT F pin 9 and 10
are ADC pins and not digital I/O pins on DT-
COMBO BA IC BA E BOARD.
•Pay attention to the pin order at the DT-AVR
ATMEGA328 CPU MODULE when connecting it
with another module.
Jumper J6 and J7 are used to select function and line of
PB.6 (J6) and PB.7 (J7).
PB.6 and PB.7
Functions J6 and J7 Positions
PB.6 and PB.7 on IC
are connected to the
crystal oscillator
(J6 = 1 - 2)
(J7 = 1 - 2)
PB.6 and PB.7 on IC
are connected to
HEADER 1 and HEADER
2
(J6 = 2 - 3)
(J7 = 2 - 3)
CD /DVD Contents
1. CodeVisionAVR© evaluation.
2. Testing program for ATmega328P in CodeVisionAVR©
C language.
3. Datasheet.
4. DT-AVR ATmega328 CPU Module Manual.
5. DT-AVR ATmega328 CPU Module chematic.
6. Innovative Electronics Website.
T esting Procedure
1. This test uses the DT-COMBO BA IC BA E BOARD.
Connect DT-AVR ATMEGA328 CPU MODULE to it.
2. On the DT-COMBO BA IC BA E BOARD perform
these following steps:
•Release jumper J31 and arrange jumper J34 and
J35 to point 2-3.
•Arrange jumper J22, J23, J24, J25, J26, J27,
J28, and J29 to point 2-3.
•Connect PORT B, PORT C, AND PORT E with DT-
I/O LED LOGIC TE TER or a series of active low
LED.
•Connect J1 (UART0) or J2 (UART1) DT-COMBO
BA IC BA E BOARD with the computer serial port
using a serial cable.
3. Arrange jumper J6 and J7 to position 1-2 and
connect I P HEADER on the DT-AVR ATMEGA328
CPU MODULE with DT-HiQ AVR In ystem
Programmer or other compatible programming tools.
4. Connect a 6,5-12 Volt DC power supply to the DT-
COMBO BA IC BA E BOARD DC port. The power LED
on the DT-AVR ATMEGA328 CPU MODULE and DT-
COMBO BA IC BA E BOARD will light up. If one or
both LEDs do not light up, recheck the connections
between the modules and the power supply.
5. Program the ATMEGA328 TEST FILE.HEX using DT-
HiQ AVR In ystem Programmer or other compatible
programming tools. During the download process, the
programming indicator LED will light up.
6. If the download process succeeded, the LEDs
connected to Port A, Port B, Port C, and Port D (on
Port E) will light up alternately representing the
binary numbers of 0-255. The LEDs at Port D bit 0
and 1 will not light up because they are used as
UART0 serial communication lines. While the LEDs on
Port B and C will only light up from bit 0 to bit 5.
7. Run the terminal program on the computer to see the
serial data sent by the module to the computer. This
serial communication uses the following configuration:
•Baud rate : 9600 bps
•Data bit : 8
•Parity : none
•top bit : 1
•Flow control : none
8. When using a HEX view (not A CII), monitor screen
will show hex numbers from 00H up to FFH sent
repeatedly.
Trademark & Cop right
AVR is registered trademark of Atmel Corporation.
CodeVisionAVR is copyright by Pavel Haiduc, HP InfoTech s.r.l.
♦Thank you for your confidence in using our products, if there
are difficulties, questions, or suggestions regarding this
product please contact our technical support:
support@innovativeelectronics.com
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