PowerBoot
Booting the Board
PPC/CPCI-690
4 - 5
Booting the Board
When the board is turned on or rebooted, the presence and functionality of
the board’s components is tested by the power-on self test (POST). After
POST has finished, the board can either boot automatically or after entering
the autoboot command. The necessary boot parameters for the possibilities
have to be set via the setboot command. The parameters are stored in the
on-board NVRAM which keeps its contents during power-off and checks
them after the next power-on or after reset.
Reading POST Results
If POST is executed before the boot-up procedure or not, can be set in the
POST option in setboot. If POST is enabled and executed, its results are
stored in the NVRAM at offset 7CF8
16
.
A fully functional CPCI-690 will show the value 0x3B for all tests which are
okay. A failure will not stop the power-up process since debug functional-
ity is provided via console serial interface 1.
Table 9:
POST Bit Layout Results
Bit Description
Result
0
DRAM testbit
1: Okay
0: Failure
1
PCI testbit
1: Okay
0: Failure
2
Not used
0
3
Boot flash test bit
1: Okay
0: Failure
4
Ethernet testbit
1: Okay
0: Failure
5
NVRAM testbit
1: Okay
0: Failure
6
Not used
0
7
Not used
0
Содержание PPC/CPCI-690
Страница 1: ...PPC CPCI 690 Reference Guide P N 227356 Revision AC June 2006 ...
Страница 12: ...xii PPC CPCI 690 Battery Exchange Figure 19 Battery Location A 3 Figure 20 Dot Position on BatteryA 4 ...
Страница 16: ...xvi PPC CPCI 690 SRAM Static RAM TPE Twisted Pair Ethernet UART Universal Asynchronous Receiver Transmitter ...
Страница 22: ...xxii PPC CPCI 690 ...
Страница 28: ...xxviii PPC CPCI 690 ...
Страница 35: ...1 Introduction ...
Страница 36: ......
Страница 43: ...2 Installation ...
Страница 44: ......
Страница 46: ...Action Plan Installation 2 4 PPC CPCI 690 ...
Страница 64: ...Board Installation Installation 2 22 PPC CPCI 690 ...
Страница 65: ...3 Controls Indicators and Connectors ...
Страница 66: ......
Страница 75: ...4 PowerBoot ...
Страница 76: ......
Страница 128: ...Command Set PowerBoot 4 54 PPC CPCI 690 ...
Страница 129: ...5 Buses ...
Страница 130: ......
Страница 148: ...Local I2C Buses Buses 5 20 PPC CPCI 690 ...
Страница 149: ...6 Maps and Registers ...
Страница 150: ......
Страница 164: ...Register Maps and Registers 6 16 PPC CPCI 690 ...
Страница 165: ...A Battery Exchange ...
Страница 166: ......
Страница 169: ...B Troubleshooting ...
Страница 170: ......
Страница 176: ...I 2 PPC CPCI 690 ...