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authorMichael J. Chudobiak <mjc@avtechpulse.com>2013-04-08 14:28:00 -0400
committerMichael J. Chudobiak <mjc@avtechpulse.com>2013-04-08 14:28:00 -0400
commit9bf3eecdcb6273c92e27ad233b7497624c33b792 (patch)
tree9814697641f6c9af3fce9035f24ce60c46c0e677 /bus.h
parentdc99289acd9644a365bbe662deaac2fef1b3035f (diff)
add a dedicated pin to reset GPIB, becase SYS_RESETn is flaky
Diffstat (limited to 'bus.h')
-rw-r--r--bus.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/bus.h b/bus.h
index 7f01cf3..f62e931 100644
--- a/bus.h
+++ b/bus.h
@@ -19,6 +19,7 @@
#define OUTPUT_RELAY 4 /* output enable/disable relay */
#define PW_ENABLE 5 /* TTL enable/disable output */
#define POWER_FAIL 6 /* pulled low if +24V OK, pulled high if power fails */
+#define RST_GPIB 7 /* don't use SYS_RESETn for this purpose - unpredictable */
// A5, A6 used to select chips
#define Octal_DACportCS_low 0x00