/*
- * 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>
*
* 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/>.
*/
/*
#include <fx2regs.h>
#include <fx2macros.h>
+#include <fx2ints.h>
#include <delay.h>
#include <setupdat.h>
#include <eputils.h>
volatile __bit got_sud;
BYTE vendor_command;
+volatile WORD ledcounter = 1000;
+
+extern __bit gpif_acquiring;
+
static void setup_endpoints(void)
{
/* Setup EP2 (IN). */
/* (2) Reset data toggles of the EPs in the interface. */
/* Note: RESETTOGGLE() gets the EP number WITH bit 7 set/cleared. */
RESETTOGGLE(0x82);
-#ifdef DEBUG
- RESETTOGGLE(0x86);
-#endif
/* (3) Restore EPs to their default conditions. */
/* Note: RESETFIFO() gets the EP number WITHOUT bit 7 set/cleared. */
RESETFIFO(0x02);
/* TODO */
-#ifdef DEBUG
- RESETFIFO(0x06);
-#endif
/* (4) Clear the HSNAK bit. Not needed, fx2lib does this. */
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. */
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;