X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=fx2lafw.c;h=1949a7c1fecfd46769cab5ff86947a3b9e6dac26;hb=37521a3b07b1dd757e1cef9b6357a23d477ee303;hp=73fbf2032239f0a84a1c900d0cbfe24b2f55f525;hpb=365795313f4f7f204f159f443e06847de7d48264;p=sigrok-firmware-fx2lafw.git

diff --git a/fx2lafw.c b/fx2lafw.c
index 73fbf203..1949a7c1 100644
--- a/fx2lafw.c
+++ b/fx2lafw.c
@@ -1,5 +1,5 @@
 /*
- * This file is part of the fx2lafw project.
+ * This file is part of the sigrok-firmware-fx2lafw project.
  *
  * Copyright (C) 2011-2012 Uwe Hermann <uwe@hermann-uwe.de>
  *
@@ -14,8 +14,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
@@ -39,6 +38,7 @@
 
 #include <fx2regs.h>
 #include <fx2macros.h>
+#include <fx2ints.h>
 #include <delay.h>
 #include <setupdat.h>
 #include <eputils.h>
@@ -51,6 +51,10 @@
 volatile __bit got_sud;
 BYTE vendor_command;
 
+volatile WORD ledcounter = 1000;
+
+extern __bit gpif_acquiring;
+
 static void setup_endpoints(void)
 {
 	/* Setup EP2 (IN). */
@@ -209,6 +213,20 @@ void hispeed_isr(void) __interrupt HISPEED_ISR
 	CLEAR_HISPEED();
 }
 
+void timer2_isr(void) __interrupt TF2_ISR
+{
+	/* Blink LED during acquisition, keep it on otherwise. */
+	if (gpif_acquiring) {
+		if (--ledcounter == 0) {
+			PA1 = !PA1;
+			ledcounter = 1000;
+		}
+	} else {
+		PA1 = 1; /* LED on. */
+	}
+	TF2 = 0;
+}
+
 void fx2lafw_init(void)
 {
 	/* Set DYN_OUT and ENH_PKT bits, as recommended by the TRM. */
@@ -230,6 +248,18 @@ void fx2lafw_init(void)
 	ENABLE_HISPEED();
 	ENABLE_USBRESET();
 
+	/* PA1 (LED) is an output. */
+	PORTACFG = 0;
+	OEA = (1 << 1);
+	PA1 = 1; /* LED on. */
+
+	/* Init timer2. */
+	RCAP2L = -500 & 0xff;
+	RCAP2H = (-500 & 0xff00) >> 8;
+	T2CON = 0;
+	ET2 = 1;
+	TR2 = 1;
+
 	/* Global (8051) interrupt enable. */
 	EA = 1;