add a dedicated pin to reset GPIB, becase SYS_RESETn is flaky

1 files changed, 7 insertions, 0 deletions

diff --git a/gpib.c b/gpib.c
index 46b1e14..88986b4 100644
--- a/gpib.c
+++ b/gpib.c
@@ -413,6 +413,13 @@ static void TNT_Gen_Error(int code)
 /*----------------------------------------------------------------------------------------------------------*/
 void GPIB_initialize(void)
 {
+	// The RST_GPIB pin should already be low - defaults to low at
+	// power on.
+	bus_setpin(RST_GPIB, 0);
+	g_usleep(1);
+        bus_setpin(RST_GPIB, 1);
+	g_usleep(100);
+
 	INTERFACE_STATUS=0;		/* Initialize Globals to zero */
 	INTERFACE_ERROR=0;
 	DATA_COUNT=0;