From: Keith Packard <keithp@keithp.com>
Date: Fri, 14 Apr 2017 03:18:58 +0000 (-0600)
Subject: cortexelf-v1: Fetch data at TPB rising when MWR or MRD are low
X-Git-Tag: 1.7~39
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=a5c8b8c59f99108233d99ceceb6f85315694e4b1

cortexelf-v1: Fetch data at TPB rising when MWR or MRD are low

This should get the right value at least.

Signed-off-by: Keith Packard <keithp@keithp.com>
---

diff --git a/src/cortexelf-v1/ao_1802.c b/src/cortexelf-v1/ao_1802.c
index b7e11637..9fb36595 100644
--- a/src/cortexelf-v1/ao_1802.c
+++ b/src/cortexelf-v1/ao_1802.c
@@ -73,14 +73,14 @@ static void
 TPB_rising(void)
 {
 	ADDRESS = (ADDRESS & 0xff00) | MA();
+	if (MWR() == 0 || MRD() == 0)
+		DATA = BUS();
 	ao_wakeup(&ADDRESS);
 }
 
 static void
 TPB_falling(void)
 {
-	DATA = BUS();
-	ao_wakeup(&ADDRESS);
 }
 
 uint8_t