Kontron VITA 57, Руководство пользователя

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VITA 57 Development Kit User's Guide
Troubleshooting
SD.DT.F79-0e Page 15
Set TX1 to 0 − > should reread TX1 = 0, but also RX1 = 0 because of loopback
[root@localhost ~]# io − 4 − w 0x80000804 0x00000000
[root@localhost ~]# io − 4 − r − l 0x4 0x80000808
80000808: 00000000
[root@localhost ~]#
If FMC-SER0 is configured for RS232 :
Set TX1 = 1 and TX2 = 0 − > should reread TX1 = 1 and TX2 = 0, but also RX1 =
1 and RX2 = 0 because of loopback
[root@localhost ~]# io
− 4 − w 0x80000804 0x08000000
[root@localhost ~]# io − 4 − r − l 0x4 0x80000808
80000808: 09000000
Set TX1 = 0 and TX2 = 1 − > should reread TX1 = 0 and TX2 = 1, but also RX1 =
0 and RX2 = 1 because of loopback
[root@localhost ~]# io
− 4 − w 0x80000804 0x02000000
[root@localhost ~]# io − 4 − r − l 0x4 0x80000808
80000808: 06000000
[root@localhost ~]#
Set TX1 and TX2 to 0 − > should reread TX1 = TX2 = 0, but also RX1 = RX2 = 0
because of loopback
[root@localhost ~]# io
− 4 − w 0x80000804 0x00000000
[root@localhost ~]# io − 4 − r − l 0x4 0x80000808
80000808: 00000000