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;
}
+#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_long_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_long_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_long_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_long_delay();
+ ao_delay(AO_RESET_HIGH_DELAY);
}
static void
}
__code struct ao_cmds ao_dbg_cmds[7] = {
- { 'D', debug_enable, "D Enable debug mode" },
- { 'G', debug_get, "G <count> Get data from debug port" },
- { 'I', debug_input, "I <count> <addr> Input <count> bytes to target at <addr>" },
- { 'O', debug_output, "O <count> <addr> Output <count> bytes to target at <addr>" },
- { 'P', debug_put, "P <byte> ... Put data to debug port" },
- { 'R', debug_reset, "R Reset target" },
- { 0, debug_reset, 0 },
+ { debug_enable, "D\0Enable debug mode" },
+ { debug_get, "G <count>\0Get data from debug port" },
+ { debug_input, "I <count> <addr>\0Input <count> bytes to target at <addr>" },
+ { debug_output, "O <count> <addr>\0Output <count> bytes to target at <addr>" },
+ { debug_put, "P <byte> ...\0Put data to debug port" },
+ { debug_reset, "R\0Reset target" },
+ { 0, NULL },
};
void