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skeleton/pv9234.cpp: hookup stub NS16550, more notes
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angelosa
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@ -8,33 +8,60 @@ PowerVu D9234 STB (c) 1997 Scientific Atlanta
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References:
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- http://www.vetrun.net/forums/showthread.php?t=395
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- http://colibri.net63.net/powervu.htm
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- http://www.growl.de/d9234/
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- https://web.archive.org/web/20080203175218/http://www.growl.de/d9234/
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TODO:
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- everything, including PCB pictures and user manual;
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- Probably shared with other PowerVu DVB-S STB models;
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- Flash ROM is (2x? 4x?) AT29C256 according to an evasive pic;
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- $3f000 area should be bootstrap code, inits UART from there?
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Front Panel:
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- On/standby / Signal on left
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- arrow keys with select in the middle, next to DVB logo
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- On/Standby | Signal/Menu on the left;
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- arrow keys with select in the middle, next to DVB logo;
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- PowerVu Conditional Access slot, on the right;
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Back Panel:
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- CH3 / CH4 dip;
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- Ant In and Tv Out UHF connectors, near composite audio/video jacks
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- Satellite LNB PWR +13/+19V 250mA
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- CH3 / CH4 dip, HF modulator (US standard);
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- Ant In and Tv Out VHF/UHF connectors, near composite audio/video jacks;
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- Satellite LNB PWR +13/+19V 250mA;
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- LNB PWR ON / OFF dip;
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- AC IN, 100V-240V, 50/60Hz
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- AC IN, 100V-240V, 50/60Hz;
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According to the Quick Setup Guide, can have following optional slots:
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- S-Video Out;
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- DE-9 Wideband Data and/or DA-25 Expansion Port;
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===================================================================================================
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Meant for payTV providers to decrypt signals from the satellite and pump
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them out on a local cable network. The powervu encryption is very secure.
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This is the serial output to a terminal, used for debugging.
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The boot process goes something like this:
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Start
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Config: 0x00001080 (Max Config: 00003C80)
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MV 00000004.00000003
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DL Avail
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IOP Com. O.K. 00000004
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Check CRC ...
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CRC O.K.
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Launch App
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**************
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* Ver 2.05 *
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**************
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Compiled by: FURLANO
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Date & time: Nov 3 1997, 15:34:29
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All printing enabled. Press space bar to toggle on/off.
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Time stamping enabled. Press 't' to turn on/off.
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Press 'o' to toggle printing of MPEG Xport error messages.
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**************************************************************************************************/
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#include "emu.h"
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#include "bus/rs232/rs232.h"
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#include "cpu/arm7/arm7.h"
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#include "machine/ins8250.h"
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#include "emupal.h"
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#include "screen.h"
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@ -54,9 +81,7 @@ public:
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void pv9234(machine_config &config);
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private:
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void debug_w(uint32_t data);
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void debug1_w(uint32_t data);
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void debug2_w(uint32_t data);
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uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
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@ -79,37 +104,6 @@ uint32_t pv9234_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap
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}
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/*
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This is the serial output to a terminal, used for debugging.
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The boot process goes something like this:
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Start
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Config: 0x00001080 (Max Config: 00003C80)
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MV 00000004.00000003
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DL Avail
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IOP Com. O.K. 00000004
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Check CRC ...
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CRC O.K.
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Launch App
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**************
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* Ver 2.05 *
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**************
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Compiled by: FURLANO
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Date & time: Nov 3 1997, 15:34:29
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All printing enabled. Press space bar to toggle on/off.
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Time stamping enabled. Press 't' to turn on/off.
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Press 'o' to toggle printing of MPEG Xport error messages.
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*/
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void pv9234_state::debug_w(uint32_t data)
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{
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if (data)
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{
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//printf("%02x %c\n",data,data); // this prints 'Start' to the console.
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logerror("debug=%02x %c\n",data,data);
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}
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}
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void pv9234_state::debug1_w(uint32_t data)
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{
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uint8_t i,j;
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@ -126,25 +120,30 @@ void pv9234_state::debug1_w(uint32_t data)
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}
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}
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void pv9234_state::debug2_w(uint32_t data)
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{
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if (data)
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logerror("debug2=%02x\n",data); // ignore the huge amount of zeroes here
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}
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void pv9234_state::main_map(address_map &map)
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{
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map(0x00000000, 0x0007ffff).rom().region("maincpu", 0); //FLASH ROM!
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//map.unmap_value_high();
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// TODO: flash ROM
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map(0x00000000, 0x0007ffff).rom().region("maincpu", 0);
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// map(0x00000000, 0x00000033).w(FUNC(pv9234_state::)); something
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// map(0x00000044, 0x00000047).w(FUNC(pv9234_state::));
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// map(0x00000060, 0x0000006b).w(FUNC(pv9234_state::));
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// map(0x00007000, 0x00007003).w(FUNC(pv9234_state::));
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// map(0x00008000, 0x00008003).w(FUNC(pv9234_state::));
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map(0x00008000, 0x000080ff).unmaprw();
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map(0x00008014, 0x00008017).w(FUNC(pv9234_state::debug1_w));
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// map(0x00008020, 0x00008027).w(FUNC(pv9234_state::));
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map(0x000080c0, 0x000080c3).w(FUNC(pv9234_state::debug2_w));
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map(0x000080cc, 0x000080cf).w(FUNC(pv9234_state::debug_w));
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// map(0x000080d0, 0x000080d3).w(FUNC(pv9234_state::));
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map(0x000080c0, 0x000080df).rw("uart", FUNC(ns16550_device::ins8250_r), FUNC(ns16550_device::ins8250_w)).umask32(0x000000ff);
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map(0x000080cc, 0x000080cc).lw8(
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NAME([this] (offs_t offset, u8 data) {
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if (data)
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{
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//printf("%02x %c\n",data,data); // this prints 'Start' to the console.
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logerror("debug=%02x %c\n",data,data);
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}
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})
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);
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map(0x0003e000, 0x0003efff).ram().share("p_ram");
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map(0x00080000, 0x00087fff).mirror(0x78000).ram().share("share1");//mirror is a guess, writes a prg at 0xc0200 then it jumps at b0200 (!)
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map(0xe0000000, 0xe0007fff).mirror(0x0fff8000).ram().share("share1");
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@ -166,11 +165,9 @@ void pv9234_state::machine_reset()
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void pv9234_state::pv9234(machine_config &config)
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{
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/* basic machine hardware */
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ARM7(config, m_maincpu, 4915000); // TODO: unknown type
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ARM7(config, m_maincpu, 4915000); // TODO: unknown type, VLSI branded?
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m_maincpu->set_addrmap(AS_PROGRAM, &pv9234_state::main_map);
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/* video hardware */
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screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
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screen.set_refresh_hz(60);
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screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */
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@ -179,10 +176,25 @@ void pv9234_state::pv9234(machine_config &config)
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screen.set_screen_update(FUNC(pv9234_state::screen_update));
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screen.set_palette("palette");
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// TODO: wideband DE-9 port
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// TODO: actually NS16550A, uses DA-25 port for a non-standard 8P1 125k baud rate
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NS16550(config, "uart", 8_MHz_XTAL);
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// uart.out_tx_callback().set("serial", FUNC(rs232_port_device::write_txd));
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// uart.out_dtr_callback().set("serial", FUNC(rs232_port_device::write_dtr));
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// uart.out_rts_callback().set("serial", FUNC(rs232_port_device::write_rts));
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//
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// rs232_port_device &serial(RS232_PORT(config, "serial", default_rs232_devices, "terminal"));
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// serial.rxd_handler().set("uart", FUNC(ns16550_device::rx_w));
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// serial.dcd_handler().set("uart", FUNC(ns16550_device::dcd_w));
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// serial.dsr_handler().set("uart", FUNC(ns16550_device::dsr_w));
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// serial.cts_handler().set("uart", FUNC(ns16550_device::cts_w));
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// TODO: has a Philips SAA-branded chip on the evasive PCB picture
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PALETTE(config, "palette", palette_device::MONOCHROME);
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}
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/* ROM definition */
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ROM_START( pv9234 )
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ROM_REGION32_LE( 0x80000, "maincpu", ROMREGION_ERASE00 )
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ROM_LOAD16_BYTE( "u19.bin", 0x00000, 0x20000, CRC(1e06b0c8) SHA1(f8047f7127919e73675375578bb9fcc0eed2178e))
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@ -193,5 +205,6 @@ ROM_END
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} // anonymous namespace
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// PowerVu D9223 Commercial Satellite Receiver
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// PowerVu D9225 Headend Satellite Receiver
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SYST( 1997, pv9234, 0, 0, pv9234, pv9234, pv9234_state, empty_init, "Scientific Atlanta", "PowerVu D9234 Business Satellite Receiver", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)
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