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Diffstat (limited to 'c/src/lib/libbsp/m68k/gen68360/README')
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/README | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/m68k/gen68360/README b/c/src/lib/libbsp/m68k/gen68360/README index 3902ff7d2e..802e518e70 100644 --- a/c/src/lib/libbsp/m68k/gen68360/README +++ b/c/src/lib/libbsp/m68k/gen68360/README @@ -299,3 +299,17 @@ The board support package has been tested with: Arnewsh Inc. P.O. Box 270352 Fort Collins, CO 80527-0352 + +Interrupt Notes +=============== +ckinit.c: + Occasional network lockups have been noted when the PIT has a higher +interrupt request level than the CPM. The SCC1 bit in the CISR is set +even though the SCC1 interrupt handler is not active. This blocks +interrupts from SCC1 (and all other CPM sources) and locks up the +system. It has not been determined whether the error is within the +68360 or in the RTEMS interrupt support assembler code. The solution, +for now, is to set both PIT and CPM interrupt request levels to the same +value (4). + + |