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Added missing pulses to IDO22 DBV protocol and included additional documentation on pulse sequences. This also fixed some superboard games that did not take bills.

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This commit is contained in:
Jim Stolis 2012-08-14 01:31:03 +00:00
parent 895bc41b6e
commit 03af9f1012
1 changed files with 43 additions and 3 deletions
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46
src/mame/drivers/peplus.c
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@ -220,6 +220,9 @@ public:
UINT8 m_bv_pulse;
UINT8 m_bv_denomination;
UINT64 m_bv_cycles;
UINT8 m_bv_last_enable_state;
UINT8 m_bv_enable_state;
UINT8 m_bv_enable_count;
DECLARE_WRITE8_MEMBER(peplus_bgcolor_w);
DECLARE_WRITE8_MEMBER(peplus_crtc_display_w);
DECLARE_WRITE8_MEMBER(peplus_io_w);
@ -488,6 +491,8 @@ WRITE8_MEMBER(peplus_state::peplus_output_bank_c_w)
output_set_value("pe_bnkc5",(data >> 5) & 1); /* SDS Out */
output_set_value("pe_bnkc6",(data >> 6) & 1); /* N/A */
output_set_value("pe_bnkc7",(data >> 7) & 1); /* Game Meter */
m_bv_enable_state = (data >> 4) & 1;
}
WRITE8_MEMBER(peplus_state::i2c_nvram_w)
@ -569,6 +574,10 @@ READ8_MEMBER(peplus_state::peplus_input0_r)
{
/*
Emulating IGT IDO22 Pulse Protocol (IGT Smoke 2.2)
ID022 protocol requires a 20ms on/off pulse x times for denomination followed by a 50ms stop pulse.
The DBV then waits for at least 3 toggling (ACK) pulses of alternating 20ms each from the game.
If no toggling received within 200ms, the bill was rejected by the game (e.g. Max Credits reached).
Once toggling received, the DBV stacks the bill and sends two 10ms stacked pulses separated by a 10ms pause.
TODO: Will need to include IGT IDO23 (IGT 2.5) for Superboard games.
PE+ bill validators have a dip switch setting to switch between ID-022 and ID-023 protocols.
@ -644,17 +653,48 @@ READ8_MEMBER(peplus_state::peplus_input0_r)
if (curr_cycles - m_bv_cycles >= 833.3 * 50) {
m_bv_cycles = curr_cycles;
m_bv_pulse = 0;
// Reset Toggle Details
m_bv_last_enable_state = m_bv_enable_state;
m_bv_enable_count = 0;
m_bv_state++;
}
break;
case 0x04: // Stop Pulse 50ms OFF
if (curr_cycles - m_bv_cycles >= 833.3 * 50) {
case 0x04: // Begin Toggle Polling
if (m_bv_enable_state != m_bv_last_enable_state) {
m_bv_enable_count++;
m_bv_last_enable_state = m_bv_enable_state;
// Got Enough Toggles, Advance to Stacking
if (m_bv_enable_count == 0x03) {
m_bv_cycles = curr_cycles;
m_bv_pulse = 1;
m_bv_state++;
}
} else {
// No Toggling Found, Game Rejected Bill
if (curr_cycles - m_bv_cycles >= 833.3 * 200) {
m_bv_pulse = 0;
m_bv_state = 0;
}
}
break;
case 0x05: // Stacked Pulse 10ms ON
if (curr_cycles - m_bv_cycles >= 833.3 * 10) {
m_bv_cycles = curr_cycles;
m_bv_pulse = 0;
m_bv_state++;
}
break;
case 0x06: // Stacked Pulse 10ms OFF
if (curr_cycles - m_bv_cycles >= 833.3 * 10) {
m_bv_cycles = curr_cycles;
m_bv_pulse = 1;
m_bv_state++;
}
break;
case 0x05: // Stacked Pulse 10ms ON
case 0x07: // Stacked Pulse 10ms ON
if (curr_cycles - m_bv_cycles >= 833.3 * 10) {
m_bv_cycles = curr_cycles;
m_bv_pulse = 0;