Letztes Update: 03.02.2002
Als Massenspeicher für die Daten der Wetterstation wird eine Compact Flash Card mit 32 MB benutzt. Auf ihr können bei einer Datenrate von 64 Kanälen pro 5 Minuten Daten von ca. 3 Monaten gespeichert werden. Ursprünglich war der Einsatz von Statik RAM geplant, aber der Preisunterschied ist einfach zu groß. 0.5 MB SRAM kosten ungefähr genauso viel wie 32 MB Flash Speicher.
Um sich die Option offen zu halten, eventuell mal eine andere CPU zu verwenden, wird der Speicher auf einer extra Europakarte untergrbracht. Um den Speicher möglichst einfach zugänglich zu machen, und vor allen Dingen aus Mangel an Stiftleisten für die Flash Card, wird die Karte in einem PCMCia Adapter betrieben.
a |
c |
Bemerkung | |
| GND . . . . Ub . . . . . . . . . . . . . . . . . . . . . . . . . . |
1 |
GND . . . . Ub . . . . . . . . . . . . . . . . . . . . . . . . . . |
Systemmasse . . . . Ausgang Gepufferte Spannung . . . . . . . . . . . . . . . . . . . . . . . . . . |
PCMCIA (Personal Computer Memory Card International Association)
Unterschiedliche Kartentypen
| PC Card | Small PC Card | Miniatur Card | SmartMedia Card | MultiMedia Card | CompactFlash | |
| Länge | 85.6 | 45.0 | 33.0 | 45.0 | 32.0 | 36.0 |
| Breite | 54.0 | 42.8 | 38.0 | 37.0 | 24.0 | 43.0 |
| Höhe | 3.3/5.0/10.5 | 3.3/5.0/10.5 | 3.5 | 0.76 | 1.4 | 3.3/5.0 |
| Fassung | Pin/Socket | Pin/Socket | Elastomeric | Surface | Surface | Pin/Socket |
| Kontakte | 68 | 68 | 60 | 22 | 7 | 50 |
| Interface | Memory, I/O, CardBus | Memory, I/O | Memory
(DRAM, Flash, ROM) |
Memory (Flash, ROM) | Memory (Flash, ROM) | Memory, I/O |
Unterschiedliche PC-Card Typen
| Länge | Breite | Höhe | Typische Anwendung | |
| Typ I | 85.6mm | 54.0mm | 3.3mm | Memory, SRAM, Flash |
| Typ II | 85.6mm | 54.0mm | 5.0mm | I/O, Modem, LAN |
| Typ III | 85.6mm | 54.0mm | 10.5mm | Harddisk |
PC-Card Pinbelegung
 Sicht auf Karte |
|||
Pin |
Function |
Direction |
Description |
|---|---|---|---|
1 |
GND |
------ |
Ground |
2 |
D3 |
IN/OUT |
Data 3 |
3 |
D4 |
IN/OUT |
Data 4 |
4 |
D5 |
IN/OUT |
Data 5 |
5 |
D6 |
IN/OUT |
Data 6 |
6 |
D7 |
IN/OUT |
Data 7 |
7 |
/CE1 |
OUT |
Card Enable 1 |
8 |
A10 |
OUT |
Address 10 |
9 |
/OE |
OUT |
Output Enable |
10 |
A11 |
OUT |
Address 11 |
11 |
A9 |
OUT |
Address 9 |
12 |
A8 |
OUT |
Address 8 |
13 |
A13 |
OUT |
Address 13 |
14 |
A14 |
OUT |
Address 14 |
15 |
/WE:/P |
OUT |
Write Enable : Program |
16 |
/READY:/IREQ |
IN |
Ready : Busy (IREQ) |
17 |
VCC |
OUT |
+5V |
18 |
VPP1 |
OUT |
Programming Voltage (EPROM) |
19 |
A16 |
OUT |
Address 16 |
20 |
A15 |
OUT |
Address 15 |
21 |
A12 |
OUT |
Address 12 |
22 |
A7 |
OUT |
Address 7 |
23 |
A6 |
OUT |
Address 6 |
24 |
A5 |
OUT |
Address 5 |
25 |
A4 |
OUT |
Address 4 |
26 |
A3 |
OUT |
Address 3 |
27 |
A2 |
OUT |
Address 2 |
28 |
A1 |
OUT |
Address 1 |
29 |
A0 |
OUT |
Address 0 |
30 |
D0 |
IN/OUT |
Data 0 |
31 |
D1 |
IN/OUT |
Data 1 |
32 |
D2 |
IN/OUT |
Data 2 |
33 |
/WP:/IOIS16 |
IN |
Write Protect : IOIS16 |
34 |
GND |
------ |
Ground |
35 |
GND |
------ |
Ground |
36 |
/CD1 |
IN |
Card Detect 1 |
37 |
D11 |
IN/OUT |
Data 11 |
38 |
D12 |
IN/OUT |
Data 12 |
39 |
D13 |
IN/OUT |
Data 13 |
40 |
D14 |
IN/OUT |
Data 14 |
41 |
D15 |
IN/OUT |
Data 15 |
42 |
/CE2 |
OUT |
Card Enable 2 |
43 |
/VS1 |
OUT |
Refresh |
44 |
/IORD |
OUT |
I/O Read |
45 |
/IOWR |
OUT |
I/O Write |
46 |
A17 |
OUT |
Address 17 |
47 |
A18 |
OUT |
Address 18 |
48 |
A19 |
OUT |
Address 19 |
49 |
A20 |
OUT |
Address 20 |
50 |
A21 |
OUT |
Address 21 |
51 |
VCC |
OUT |
+5V |
52 |
VPP2 |
OUT |
Programming Voltage 2 (EPROM) |
53 |
A22 |
OUT |
Address 22 |
54 |
A23 |
OUT |
Address 23 |
55 |
A24 |
OUT |
Address 24 |
56 |
A25 |
OUT |
Address 25 |
57 |
/VS2 |
|
RFU |
58 |
RESET |
OUT |
RESET |
59 |
/WAIT |
|
WAIT |
60 |
/INPACK |
|
|
61 |
/REG |
OUT |
Register Select |
62 |
/BVD2:SPKR |
IN |
Battery Voltage Detect 2 : SPKR |
63 |
/BVD1:STSCHG |
IN |
Battery Voltage Detect 1 : STSCHG |
64 |
D8 |
IN/OUT |
Data 8 |
65 |
D9 |
IN/OUT |
Data 9 |
66 |
D10 |
IN/OUT |
Data 10 |
67 |
/CD2 |
IN |
Card Detect 2 |
68 |
GND |
------ |
Ground |
CompactFlash Pinbelegung
 Sicht
auf Karte |
|||
| Pin | Function | Dirction | Description |
1 |
GND |
||
2 |
D3 |
IN/OUT |
|
3 |
D4 |
IN/OUT |
|
4 |
D5 |
IN/OUT |
|
5 |
D6 |
IN/OUT |
|
6 |
D7 |
IN/OUT |
|
7 |
/CE1 |
IN |
|
8 |
A10 |
IN |
|
9 |
/OE |
IN |
|
10 |
A9 |
IN |
|
11 |
A8 |
IN |
|
12 |
A7 |
IN |
|
13 |
Vcc |
|
|
14 |
A6 |
IN |
|
15 |
A5 |
IN |
|
16 |
A4 |
IN |
|
17 |
A3 |
IN |
|
18 |
A2 |
IN |
|
19 |
A1 |
IN |
|
20 |
A0 |
IN |
|
21 |
D0 |
IN/OUT |
|
22 |
D1 |
IN/OUT |
|
23 |
D2 |
IN/OUT |
|
24 |
WP |
OUT |
|
25 |
/CD2 |
OUT |
|
26 |
/CD1 |
OUT |
|
27 |
D11 |
IN/OUT |
|
28 |
D12 |
IN/OUT |
|
29 |
D13 |
IN/OUT |
|
30 |
D14 |
IN/OUT |
|
31 |
D15 |
IN/OUT |
|
32 |
/CE2 |
IN |
|
33 |
/VS1 |
OUT |
|
34 |
/IORD |
IN |
|
35 |
/IOWR |
IN |
|
36 |
/WE |
IN |
|
37 |
RDY/BSY |
OUT |
|
38 |
Vcc |
|
|
39 |
/CSEL |
IN |
|
40 |
/VS2 |
OUT |
|
41 |
RESET |
IN |
|
42 |
/WAIT |
OUT |
|
43 |
/INPACK |
OUT |
|
44 |
/REG |
IN |
|
45 |
BVD2 |
IN/OUT |
|
46 |
BVD1 |
IN/OUT |
|
47 |
D8 |
IN/OUT |
|
48 |
D9 |
IN/OUT |
|
49 |
D10 |
IN/OUT |
|
50 |
GND |
|
|
Unterschiede zwischen PC-Card und CF
| Pin | PC Card | CompactFlash | Pin | PC Card | CompactFlash |
1 |
GND |
GND |
35 |
GND |
/IOWR |
2 |
D3 |
D3 |
36 |
/CD1 |
/WE |
3 |
D4 |
D4 |
37 |
D11 |
/RDY : /BSY |
4 |
D5 |
D5 |
38 |
D12 |
Vcc |
5 |
D6 |
D6 |
39 |
D13 |
/CSEL |
6 |
D7 |
D7 |
40 |
D14 |
/VS2 |
7 |
/CE1 |
/CE1 |
41 |
D15 |
RESET |
8 |
A10 |
A10 |
42 |
/CE2 |
/WAIT |
9 |
/OE |
/OE |
43 |
/VS1 |
/INPACK |
10 |
A11 |
A9 |
44 |
/IORD |
/REG |
11 |
A9 |
A8 |
45 |
/IOWR |
BVD2 |
12 |
A8 |
A7 |
46 |
A17 |
BVD1 |
13 |
A13 |
Vcc |
47 |
A18 |
D8 |
14 |
A14 |
A6 |
48 |
A19 |
D9 |
15 |
/WE : /P |
A5 |
49 |
A20 |
D10 |
16 |
/RDY : /IREQ |
A4 |
50 |
A21 |
GND |
17 |
Vcc |
A3 |
51 |
Vcc |
|
18 |
VPP1 |
A2 |
52 |
VPP2 |
|
19 |
A16 |
A1 |
53 |
A22 |
|
20 |
A15 |
A0 |
54 |
A23 |
|
21 |
A12 |
D0 |
55 |
A24 |
|
22 |
A7 |
D1 |
56 |
A25 |
|
23 |
A6 |
D2 |
57 |
/VS2 |
|
24 |
A5 |
WP |
58 |
RESET |
|
25 |
A4 |
/CD2 |
59 |
/WAIT |
|
26 |
A3 |
/CD1 |
60 |
/INPACK |
|
27 |
A2 |
D11 |
61 |
/REG |
|
28 |
A1 |
D12 |
62 |
/BVD2 : SPKR |
|
29 |
A0 |
D13 |
63 |
/BVD1 : STSCHG |
|
30 |
D0 |
D14 |
64 |
D8 |
|
31 |
D1 |
D15 |
65 |
D9 |
|
32 |
D2 |
/CE2 |
66 |
D10 |
|
33 |
WP : /IOIS16 |
/VS1 |
67 |
/CD2 |
|
34 |
GND |
/IORD |
68 |
GND |
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