Can; Display Interface; Lcd Module - Atmel SAM4E-EK User Manual

4.3.10 CAN

The CAN controller provides all the features required to implement the serial communication protocol CAN defined by
Robert Bosch GmbH, the CAN specification as referred to by ISO/11898A (2.0 Part A and 2.0 Part B) for high speeds
and ISO/11519-2 for low speeds. The CAN Controller is able to handle all types of frames (Data, Remote, Error and
Overload) and achieves a bit rate of 1Mbit/sec.
The Atmel SAM4E has two CAN Controller with eight Mailboxes.
SAM4E-EK connects the CAN0 and CAN1 bus to the CAN transceiver SN65HVD234 (MN11 and MN12).
The extension connector (J13 and J14) type is RJ12 female socket.
Figure 4-9. CAN block.
PE0
(CANTX0RS) R135
PB2 (CANTX0)
PE1
(CANRX0EN) R138
PB3
(CANRX0) R139
PE2
(CANTX1RS) R142
PC15
(CANTX1) R143
PE3
(CANRX1EN) R149
PC12
(CANRX1) R150

4.3.11 Display interface

The SAM4E-EK carries a TFT transmissive LCD module with touch panel, FTM280C34D. Its integrated driver IC is
ILI9325. The LCD display area is 2.8 inches diagonally measured, with a native resolution of 240 x 320 dots.
4.3.11.1

LCD module

The LCD module gets reset from the NRST signal. As explained, this NRST is shared with the JTAG port and the push-
button BP1. The LCD chip select signal is connected to NCS1; the jumper JP8 can disconnect it so that this PIO line is
available for other custom usage.
The SAM4E16 communicates with the LCD through PIOC where an 8-bit parallel "8080-like" protocol data bus has to
be implemented in software.
+3V3
R134
10K
MN11
8
0R Rs
J37-6
1
D
5
0R EN
4
0R R
R140
2
GND
10K
SN65HVD234
+3V3
R141
10K
MN12
8
0R Rs
1
0R D
5
0R EN
4
0R R
R151
2
GND
10K
SN65HVD234
JP28
7
CANH
6
CANL
R137
120R
+3V3
3
VCC
+
C95 C96
10uF 100nF
JP29
7
CANH
6
CANL
R148
120R
+3V3
3
VCC
+
C98 C99
10uF 100nF
J13
1
1
2
2
3
CAN RJ12
3
4
4
5
5
6
6
CAN0
J14
1
1
2
2
3
CAN RJ12
3
4
4
5
5
6
6
CAN1
SAM4E-EK User Guide
42067B−SAM4E−04/2013
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