LC2100/ULC2100 - Manual |
Autor: Erhard Scherer
Copyright © MCT Paul & Scherer Mikrocomputertechnik GmbH. Alle Rechte vorbehalten.
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Änderungen ohne vorherige Ankündigung vorbehalten.
1 Introduction
The single board computers LC2100/ULC2100 are intentionally designed to be simple. LC stands for Low-Cost and ULC for Ultra-Low-Cost. 2.54mm contact pin spacing makes interfacing with other boards easy.
The controller family LPC2100 has lots of peripherals onchip.
The board does not contain drivers for the interfaces, they must be provided by an application specific board.
The A/D converter expects an input voltage between 0V and Vcc (3.3V). R2 and C6 are used to decouple the reference voltage from Vcc. For correct interfacing to the ADC, additional external hardware is required.
1.1 Power Supply
LC2100/ULC2100 is a 3.3 Volt design!
The supply voltage must be in the range between 3.0V and 3.6V. Best use a value slightly above 3.3V.
The core voltage (1.8V) is derived from the 3.3V supply voltage, using a low dropout regulator. The power dissipation (product of current and voltage drop) is ca. 40mA x 1.5V = 60mW. So, the use of LC2100/ULC2100 in battery-powered applications is limited.
2 Start-up
The LC2100/ULC2100 development kits comes with:
- Single board computer LC2194 or LC2138 or ULC2103
- Base board ULCbaseA
- RS232 cable 9-9
- CD-ROM with manuals and development software
First, you should install ECO-C-arm on a PC with RS232 port. Next, connect the board via RS232 cable to the PC.
Connect the DC-jack to a plug power. The voltages are generated on board with two linear regulators. The product of current and voltage difference will produce heat. So keep the voltage as small as posible, a good choice is a value between 7V and 12V.
After finishing software installation and cabling, proceed to compile your first program and run it on your LC2100/ULC2100 board.
3 Download
Downloading via RS232 requires the controller to be forced to bootstrap mode. By factory default, P0.14 (ISP-Mode) is connected with jumper J8 (on ULCbaseA) to RTS from RS232. Most likely you will also need this mechanism in your application.
Start ECO-C-arm.
Our goal is now to compile and run a simple C program:
First, we create a project. From the menu bar select "Project-New Project". Give a name of your choice for the project. Now we add the example hello.c to our new project, selecting "Project-Project file list". The example hello.c is in the samples folder.
The program hello.c sends the string "hello, world\n" via RS232 to the terminal
Select your target, LC2194 or LC2138 or ULC2103 etc. Go to "ECO-C-settings", then "Project". Set Target hardware to your target.
Under "ECO-C" we find the menu item "Rebuild all", to compile our program.
The last step is downloading the program to the target and start it. Select "Terminal-Download". The terminal program resets the target automatically by activating the DTR line. After the download has finished, the program is started automatically. And - we should see the message "hello world" on our terminal.
For more information see the ECO-C-arm online help. The IDE is the same as the WinECO-C IDE and described in the WinECO-C manual.
4 "Stand-alone" Programs
After download, the program is already stored in the Flash of the LC2100/ULC2100. The number of possible programming cycles is ca. 100000.
The jumper J8 (on ULCbaseA) selects the mode in which the controller starts after reset:
If jumper J8 (on ULCbaseA) is connected (factory default), the internal Flash Boot Loader is activated,
jumper J8 (on ULCbaseA) open starts the application program from Flash.After "finishing" your program, you can remove the jumper.
The Flash Boot Loader is part of the LPC2100 firmware, see description in the LPC2194 User Manual under "Flash Memory System and Programming".
NOTE: Programs generated with the Demo version of ECO-C-arm run only in bootstrap mode.
5 Connectors
The controller LPC2194/LPC2138 is in a 64-pin LQFP package the LPC2103 in a 48 pin LQFP package. These pins are led to the I/O lines, GND and the supply voltage. Thus, all I/Os are externally accessible.
Wiring ST1 for LC2194 and LC2138 (differences in round brackets):
Pin Function Alternative1 Alternative2 Alternative3 1
Reset*
2
GND
3
P1.29
TCK
4
V33
5
P1.27
TDO
6
P1.30
TMS
7
P1.31
TRST*
8
P1.28
TDI
9
GND
10
P1.26
RTCK
11
P0.23
PIPESTAT2
12
GND
13
P0.25
RD1
14
P0.24 2194 (P0.31 2138)
TRACECLK
15
GND
16
TD1 2194 (P0.26 2138)
17
P1.19
TRACEPKT3
18
GND
19
P1.17
TRACEPKT1
20
P1.18
TRACEPKT2
21
GND
22
P1.16
TRACEPKT0
23
P1.20
TRACESYNC
24
P1.21
PIPESTAT0
25
P1.22
PIPESTAT1
26
P1.23
PIPESTAT2
27
P1.24 2194 (P1.31)
TRACECLK
28
P1.25
EXTIN0
29
P0.0
TxD0
30
P0.1
RxD0
31
GND
32
GND
Wiring ST2 for LC2194 and LC2138 (differences in round brackets):
Pin Function Alternative1 Alternative2 Alternative3 1
P0.22
TD3
CAP0.0
MAT0.0
2
P0.21
PWM5
RD3
CAP1.3
3
P0.20
MAT1.3
SSEL1
EINT3
4
P0.19
MAT1.2
MOSI1
CAP1.2
5
P0.18
CAP1.3
MISO1
MAT1.3
6
P0.17
CAP1.2
SCK1
MAT1.2
7
P0.16
EINT0
MAT0.2
CAP0.2
8
GND
9
GND 2194 (Vbat 2138)
10
P0.15
RI1
EINT2
11
P0.14
DCD1
EINT1
Bootstrap
12
P0.13
DTR1
MAT1.1
TD4
13
P0.12
DSR1
MAT1.0
RD4
14
P0.11
CTS1
CAP1.1
15
P0.10
RTS1
CAP1.1
16
P0.9
RxD1
PWM6
EINT3
17
P0.8
TxD1
PWM4
18
GND
19
P0.27
AIN0
CAP0.1
MAT0.1
20
P0.28
AIN1
CAP0.2
MAT0.2
21
P0.29
AIN2
CAP0.3
MAT0.3
22
P0.30
AIN3
EINT3
CAP0.0
23
GND
24
GND
25
V33
26
V33
27
P0.6
MOSI0
CAP0.2
28
P0.7
SSEL0
PWM2
EINT2
29
P0.4
SCK0
CAP0.1
30
P0.5
MISO0
MAT0.1
31
P0.2
SCL
CAP0.0
32
P0.3
SDA
MAT0.0
EINT1
Wiring ST1 for ULC2103:
Pin Function Alternative1 Alternative2 Alternative3 1
Reset*
2
3
4
5
6
7
P0.31
TDO
8
9
10
RTCK
11
P0.23
AD0.1
12
13
P0.25
AD0.6
14
P0.24
AD0.2
15
16
P0.26
AD0.7
17
18
19
20
21
22
23
24
25
26
27
28
29
P0.0
TxD0
MAT3.1;
30
P0.1
RxD0
MAT3.2
31
32
Wiring ST2 for ULC2103:
Pin Function Alternative1 Alternative2 Alternative3 1
P0.22
AD0.2
2
P0.21
SSEL0
MAT3.0
3
P0.20
MAT1.3
MOSI1
4
P0.19
MAT1.2
MISO1
5
P0.18
CAP1.3
SDA1
6
P0.17
CAP1.2
SCL1
7
P0.16
EINT0
MAT0.2
8
9
Vbat
10
P0.15
RI1
EINT2
11
P0.14
DCD1
EINT1
Bootstrap
12
P0.13
DTR1
MAT1.1
13
P0.12
DTR1
MAT1.0
14
P0.11
CTS1
CAP1.1
AD0.4
15
P0.10
RTS1
CAP1.1
AD0.3
16
P0.9
RxD1
MAT0.2
17
P0.8
TxD1
MAT2.1
18
19
P0.27
TRST
CAP2.0
20
P0.28
TMS
CAP2.1
21
P0.29
TCK
CAP2.2
22
P0.30
TDI
MAT3.3
23
GND
24
GND
25
V33
26
V33
27
P0.6
MOSI0
CAP0.2
28
P0.7
SSEL0
MAT0.2
29
P0.4
SCK0
CAP0.1
30
P0.5
MISO0
MAT0.1
31
P0.2
SCL0
CAP0.0
32
P0.3
SDA0
MAT0.0
Wiring ST3 for LC2194 and LC2138:
Pin Function 1
V33
2
DSR
3
4
RxD
5
TxD
6
7
8
9
10
GND
The Signal names refer to the LPC2100/ side.
www.mct.net: Products: Singe Board Computers: ULC2103