PCA-
6774
User’s Manual
16
2.7 COM2 RS232-422-485 Select (J3)
2.8 Watchdog timer configuration
An on-board watchdog timer reduces the chance of disruptions which
EMP (electro-magnetic pulse) interference can cause. This is an invalu-
able protective device for standalone or unmanned applications. Setup
involves one jumper and running the control software (refer to Appendix
A).
2.8.1 Watchdog timer output option (J2)
When the watchdog timer activates (CPU processing has come to a halt),
it can reset the system or generate an interrupt on IRQ11. This can be set
via setting J2 as shown below:
Table 2.4:
COM2 RS232-422-485 Select
PIN
RS232*
RS422
RS484
1-2
Closed
Open
Open
3-4
Open
Closed
Open
5-6
Open
Open
Closed
Table 2.5: Watchdog timer output option (J2)
*System reset
IRQ 11
* default setting
Содержание PCA-6774
Страница 10: ...PCA 6774 User s Manual 6 1 4 Board layout dimensions Figure 1 1 Board layout dimensions component side...
Страница 11: ...7 Chapter 1 General Information Figure 1 2 Board layout dimensions solder side...
Страница 15: ...PCA 6774 User s Manual 12 2 3 Locating Connectors component side Figure 2 1 Jumper Connector locations...
Страница 16: ...13 Chapter 2 Installation 2 4 Locating Connectors solder side Figure 2 2 Connectors soldor side...
Страница 47: ...PCA 6774 User s Manual 50 2 Choose the Adapter tab then press the Change button 3 Press the Have Disk button...
Страница 51: ...PCA 6774 User s Manual 54 2 Select Adapter then Change...
Страница 52: ...55 Chapter5 3 Press Next then Display a list 4 Press the Have disk button...
Страница 54: ...57 Chapter5 7 S3 Graphics Twister appears under the adapter tab Click the Apply button 8 Press Yes to reboot...
Страница 56: ...59 Chapter5 2 Choose the Settings tab and press the Display Type button...
Страница 57: ...PCA 6774 User s Manual 60 3 Press the Change button...
Страница 58: ...61 Chapter5 4 Click the Have Disk button 5 Type the path D Biscuit VGA WinNT Press the OK button...
Страница 61: ...PCA 6774 User s Manual 64 2 Choose the Video Controller VGA Compatible button...
Страница 62: ...65 Chapter5 3 Choose the Drive button press Update Driver button...
Страница 64: ...67 Chapter5 6 Click the Have Disk button 7 Type the path D Biscuit 9577 VGA Win2000 press the OK but ton...
Страница 66: ...69 Chapter5 2 Choose Hardware and Device Manager press OK button...
Страница 67: ...PCA 6774 User s Manual 70 3 Choose Video Controller VGA Compatible press OK button...
Страница 68: ...71 Chapter5 4 Choose Driver Update Driver press OK button 5 Choose Install from a list press Next...
Страница 77: ...PCA 6774 User s Manual 100 7 2 3 Installation for Windows 2000 1 Open Device Manager...
Страница 78: ...101 Chapter7 2...
Страница 79: ...PCA 6774 User s Manual 102 3 4...
Страница 80: ...103 Chapter7 5 6...
Страница 81: ...PCA 6774 User s Manual 104 7 8...
Страница 82: ...105 Chapter7 9 7 2 4 Installation for Windows NT 1 a Select Start Settings Control Panel b Double click Network...
Страница 83: ...PCA 6774 User s Manual 106 2 a Choose type of network b Click Next 3 a Click Select from list...
Страница 85: ...PCA 6774 User s Manual 108 6 Check the highlighted item and click OK...
Страница 86: ...109 Chapter7 7 Click Next to continue setup 8 Choose the networking protocols then click Next...
Страница 103: ...PCA 6774 User s Manual 120 C 15 Power button CN21 Table C 15 Power Button CN21 Pin Signal 1 POWER ON 2 GND...
