From: Keith Packard <keithp@keithp.com>
Date: Sat, 1 Feb 2014 08:06:30 +0000 (-0800)
Subject: altos/fox: Enable system timer in flash loader and prod watchdog with it
X-Git-Tag: 1.8.6~1^2~82
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=6247e0c81084b59365ceca0ced33d2db92a72444

altos/fox: Enable system timer in flash loader and prod watchdog with it

This makes it possible to reflash the board without needing to disable
the watchdog.

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

diff --git a/src/fox1ihu/flash-loader/ao_pins.h b/src/fox1ihu/flash-loader/ao_pins.h
index 3a942c9c..90917a38 100644
--- a/src/fox1ihu/flash-loader/ao_pins.h
+++ b/src/fox1ihu/flash-loader/ao_pins.h
@@ -21,6 +21,20 @@
 /* External crystal at 8MHz */
 #define AO_HSE		8000000
 
+#define AO_WATCHDOG_PORT	(&stm_gpiod)
+#define AO_WATCHDOG_BIT		3
+
+#define AO_FLASH_LOADER_INIT do {						\
+		ao_enable_output(AO_WATCHDOG_PORT, AO_WATCHDOG_BIT, AO_WATCHDOG, 0); \
+	} while (0)
+	
+#define AO_TIMER_HOOK	do {						\
+		static uint8_t	watchdog;				\
+		ao_gpio_set(AO_WATCHDOG_PORT, AO_WATCHDOG_BIT, AO_WATCHDOG_PIN, watchdog); \
+		watchdog ^= 1;						\
+	} while (0)
+
+#define HAS_TICK		1
 #include <ao_flash_stm_pins.h>
 
 /* Detatched signal, PD6 */