static void
ao_dbg_set_pins(void)
{
+ /* Make the DBG pins GPIOs. On TeleMetrum, this will
+ * disable the SPI link, so don't expect SPI to work after
+ * using the debugger.
+ */
+ DBG_PORT_SEL &= ~(DBG_CLOCK|DBG_DATA|DBG_RESET_N);
+
/* make DBG_DATA tri-state */
DBG_PORT_INP |= DBG_DATA;
_asm nop _endasm;
}
-static void
-ao_dbg_reset_delay(void)
-{
- ao_delay(AO_MS_TO_TICKS(20));
-}
+#define AO_RESET_LOW_DELAY AO_MS_TO_TICKS(100)
+#define AO_RESET_HIGH_DELAY AO_MS_TO_TICKS(100)
void
ao_dbg_debug_mode(void)
ao_dbg_send_bits(DBG_CLOCK|DBG_DATA|DBG_RESET_N, DBG_CLOCK|DBG_DATA|DBG_RESET_N);
ao_dbg_long_delay();
ao_dbg_send_bits(DBG_CLOCK|DBG_DATA|DBG_RESET_N, 0 |DBG_DATA| 0 );
- ao_dbg_reset_delay();
+ ao_delay(AO_RESET_LOW_DELAY);
ao_dbg_send_bits(DBG_CLOCK|DBG_DATA|DBG_RESET_N, DBG_CLOCK|DBG_DATA| 0 );
ao_dbg_long_delay();
ao_dbg_send_bits(DBG_CLOCK|DBG_DATA|DBG_RESET_N, 0 |DBG_DATA| 0 );
ao_dbg_send_bits(DBG_CLOCK|DBG_DATA|DBG_RESET_N, DBG_CLOCK|DBG_DATA| 0 );
ao_dbg_long_delay();
ao_dbg_send_bits(DBG_CLOCK|DBG_DATA|DBG_RESET_N, 0 |DBG_DATA|DBG_RESET_N);
- ao_dbg_reset_delay();
+ ao_delay(AO_RESET_HIGH_DELAY);
}
void
ao_dbg_send_bits(DBG_CLOCK|DBG_DATA|DBG_RESET_N, DBG_CLOCK|DBG_DATA|DBG_RESET_N);
ao_dbg_long_delay();
ao_dbg_send_bits(DBG_CLOCK|DBG_DATA|DBG_RESET_N, DBG_CLOCK|DBG_DATA| 0 );
- ao_dbg_reset_delay();
+ ao_delay(AO_RESET_LOW_DELAY);
ao_dbg_send_bits(DBG_CLOCK|DBG_DATA|DBG_RESET_N, DBG_CLOCK|DBG_DATA| 0 );
ao_dbg_long_delay();
ao_dbg_send_bits(DBG_CLOCK|DBG_DATA|DBG_RESET_N, DBG_CLOCK|DBG_DATA| 0 );
ao_dbg_send_bits(DBG_CLOCK|DBG_DATA|DBG_RESET_N, DBG_CLOCK|DBG_DATA| 0 );
ao_dbg_long_delay();
ao_dbg_send_bits(DBG_CLOCK|DBG_DATA|DBG_RESET_N, DBG_CLOCK|DBG_DATA|DBG_RESET_N);
- ao_dbg_reset_delay();
+ ao_delay(AO_RESET_HIGH_DELAY);
}
static void