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03349: mpatrol, mpatrolw: Wimpy explosion sound

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- Revisited schematics
- Found 10-Yard schematics as well
- Corrected a bug, some discrete values and added two RC nodes from schematics
This commit is contained in:
Couriersud 2009-08-01 18:38:38 +00:00
parent 706b6385e4
commit 003b3e79d0
1 changed files with 18 additions and 13 deletions
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31
src/mame/audio/irem.c
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@ -217,7 +217,7 @@ static void adpcm_int(const device_config *device)
static const ay8910_interface irem_ay8910_interface_1 =
{
AY8910_SINGLE_OUTPUT,
AY8910_SINGLE_OUTPUT | AY8910_DISCRETE_OUTPUT,
{470, 0, 0},
DEVCB_MEMORY_HANDLER("iremsound", PROGRAM, soundlatch_r),
DEVCB_NULL,
@ -227,7 +227,7 @@ static const ay8910_interface irem_ay8910_interface_1 =
static const ay8910_interface irem_ay8910_interface_2 =
{
AY8910_SINGLE_OUTPUT,
AY8910_SINGLE_OUTPUT | AY8910_DISCRETE_OUTPUT,
{470, 0, 0},
DEVCB_NULL,
DEVCB_NULL,
@ -258,16 +258,19 @@ static const msm5205_interface irem_msm5205_interface_2 =
* I did my test to verify against pcb pictures of "tropical angel"
*/
#define M52_R9 560
#define M52_R10 330
#define M52_R12 RES_K(10)
#define M52_R13 RES_K(10)
#define M52_R14 RES_K(10)
#define M52_R15 RES_K(2.2) /* schematics RES_K(22) */
#define M52_R15 RES_K(2.2) /* schematics RES_K(22) , althought 10-Yard states 2.2 */
#define M52_R19 RES_K(10)
#define M52_R22 RES_K(4.7) /* schematics RES_K(47) */
#define M52_R22 RES_K(47)
#define M52_R23 RES_K(2.2)
#define M52_R25 RES_K(10)
#define M52_VR1 RES_K(50)
#define M52_C28 CAP_U(1)
#define M52_C30 CAP_U(0.022)
#define M52_C32 CAP_U(0.022)
#define M52_C35 CAP_U(47)
@ -283,12 +286,12 @@ static const msm5205_interface irem_msm5205_interface_2 =
static const discrete_mixer_desc m52_sound_c_stage1 =
{DISC_MIXER_IS_RESISTOR,
{M52_R19, M52_R22 },
{ 0, 0 }, /* variable resistors */
{M52_C37, 0 }, /* node capacitors */
0, M52_R23, /* rI, rF */
M52_C35*0, /* cF */
0, /* cAmp */
{M52_R19, M52_R22, M52_R23 },
{ 0, 0, 0 }, /* variable resistors */
{M52_C37, 0, 0 }, /* node capacitors */
0, 0, /* rI, rF */
M52_C35*0, /* cF */
0, /* cAmp */
0, 1};
static const discrete_op_amp_filt_info m52_sound_c_sallen_key =
@ -320,14 +323,16 @@ static DISCRETE_SOUND_START( m52_sound_c )
DISCRETE_DIVIDE(NODE_10, 1, NODE_09, 2.0)
/* Mix in 5 V to MSM5250 signal */
DISCRETE_MIXER2(NODE_20, 1, NODE_03, 32767.0, &m52_sound_c_stage1)
DISCRETE_MIXER3(NODE_20, 1, NODE_03, 32767.0, 0, &m52_sound_c_stage1)
/* Sallen - Key Filter */
/* TODO: R12, C30: This looks like a band pass */
DISCRETE_SALLEN_KEY_FILTER(NODE_30, 1, NODE_20, DISC_SALLEN_KEY_LOW_PASS, &m52_sound_c_sallen_key)
DISCRETE_RCFILTER(NODE_25, 1, NODE_20, M52_R12, M52_C30)
DISCRETE_SALLEN_KEY_FILTER(NODE_30, 1, NODE_25, DISC_SALLEN_KEY_LOW_PASS, &m52_sound_c_sallen_key)
/* Mix signals */
DISCRETE_MIXER2(NODE_40, 1, NODE_10, NODE_30, &m52_sound_c_mix1)
DISCRETE_MIXER2(NODE_40, 1, NODE_10, NODE_25, &m52_sound_c_mix1)
DISCRETE_CRFILTER(NODE_45, 1, NODE_40, M52_R10+M52_R9, M52_C28)
DISCRETE_OUTPUT(NODE_40, 18.0)