X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fsysclk-lwla%2Fprotocol.c;h=c4d99d82ab0d10c8c64b866b7cb9f4038373e564;hb=e6e54bd2537ac423977f5574292f2cb987ce8629;hp=5b1f2483e6ba0b38a875a0f0a1ef6b41c99d7ef0;hpb=e0df15d43600737fe225f5c68dbdbcf84d5fa326;p=libsigrok.git

diff --git a/hardware/sysclk-lwla/protocol.c b/hardware/sysclk-lwla/protocol.c
index 5b1f2483..c4d99d82 100644
--- a/hardware/sysclk-lwla/protocol.c
+++ b/hardware/sysclk-lwla/protocol.c
@@ -63,6 +63,7 @@ static int capture_setup(const struct sr_dev_inst *sdi)
 	struct dev_context *devc;
 	struct acquisition_state *acq;
 	uint64_t divider_count;
+	uint64_t trigger_mask;
 	uint64_t memory_limit;
 	uint16_t command[3 + 10*4];
 
@@ -102,10 +103,18 @@ static int capture_setup(const struct sr_dev_inst *sdi)
 	command[17] = LWLA_WORD_2(devc->trigger_edge_mask);
 	command[18] = LWLA_WORD_3(devc->trigger_edge_mask);
 
-	command[19] = LWLA_WORD_0(devc->trigger_mask);
-	command[20] = LWLA_WORD_1(devc->trigger_mask);
-	command[21] = LWLA_WORD_2(devc->trigger_mask);
-	command[22] = LWLA_WORD_3(devc->trigger_mask);
+	trigger_mask = devc->trigger_mask;
+	/* Set bits to select external TRG input edge. */
+	if (devc->cfg_trigger_source == TRIGGER_EXT_TRG)
+		switch (devc->cfg_trigger_slope) {
+		case SLOPE_POSITIVE: trigger_mask |= (uint64_t)1 << 35; break; 
+		case SLOPE_NEGATIVE: trigger_mask |= (uint64_t)1 << 34; break; 
+		}
+
+	command[19] = LWLA_WORD_0(trigger_mask);
+	command[20] = LWLA_WORD_1(trigger_mask);
+	command[21] = LWLA_WORD_2(trigger_mask);
+	command[22] = LWLA_WORD_3(trigger_mask);
 
 	/* Set the capture memory full threshold. This is slightly less
 	 * than the actual maximum, most likely in order to compensate for