// license:BSD-3-Clause // copyright-holders:Roberto Fresca /*************************************************************************************** Product name: Pitagorin Junior. Brand: VTech. Type: First steps (4-6 years old) laptop. Language: Spanish. Description: 23 didactic games with voice and sounds for 1 or 2 players. (simple maths operations, spell, hangman, letters, numbers, etc) Docs by Roberto Fresca. *************************************************************************************** Games / Activities ... ORDER TITLE TRANSLATION -----+---------------------------+---------------------- 01 - La letra perdida. The missing letter. 02 - Deletrear. Spell. 03 - Plurales. Plurals. 04 - Verbos. Verbs. 05 - El Ahorcado. Hangman. 06 - Revoltijo de letras. Messed letters. 07 - La palabra escondida. The hidden word. 08 - Trueque de letras. Swapped letters. 09 - La letra intrusa. The intruder letter. 10 - Matematicas (+,-,x,/). Mathematics (+,-,x,/). 11 - Aprendiendo los numeros. Learning the numbers. 12 - Redondeando cifras. Rounding numbers. 13 - Encuentra el signo. Find the sign. 14 - Calculadora. Calculator. 15 - Tres en raya. Three in a row. 16 - El juego de los puntos. The dot's game. 17 - El juego del squash. The squash game. 18 - El juego del arquero. The archer game. 19 - Dibujos animados. Animated cartoons. 20 - El compositor. The composer. *************************************************************************************** What's inside.... PCB silkscreened '9817' etched on copper '35-19122-2' & '703013-C' 1x Unknown CPU inside an epoxy blob (more than 100 connections) @ U? (covered with the blob). 1x VTech LH532HJT mask ROM (originary from Sharp) also silkscreened '9811D' @ U3. 1x Texas Instruments 84C91HT (CSM10150AN) speech synth with 8-bit microprocessor @ U2. 1x SN74HC00N @ U5. 1x SN74HC244N @ U4. 1x Unknown oscillator (XTAL1). 1x Unknown trimpot on an r/c oscillator (XTAL2). 1x 32 contacts (single side) expansion port. 1x 3 contacts (unknown) connector. 1x 17 contacts Keyboard (KEY1) connector. 1x 3 contacts (CONT) connector. PCB layout: .......CONNECTORS........ .------------------------------------------------------------------------------------. | .-----------------. ooo ooooooooooooooooo ooo 9817 |.---. | | THIS SECTOR | unk KEY1 CONT .-------. / =| | | | | | / =| | | IS POPULATED | | VTECH | | E =| | | | .-----------. | | | X =| | | WITH A LOT | | SN74HC00N | (84C91) | LH532 | | P P =| | | | '-----------' .----------. | HJT | | A O =| | | OF... | U5 |CSM10150AN| | | | N R =| | | | '----------'.---. | 9811D | | S T =| | | RESISTORS, | U2 | / | | | | I =| | | | U4 '---' | | | O =| | | CAPACITORS, | .--. XTAL 2 '-------' | N =| | | | |SN| ____ U3 \ =| | | AND | |74| / \ \ =| | | | |HC| 35-19122-2 | BLOB | |'---' | | TRANSISTORS | |24| 703013-C \____/ .----. | | | | |4N| U? '----' | | '-----------------' '--' XTAL 1 | '------------------------------------------------------------------------------------' Expansion Port: CONNECTOR CONNECTOR --------- --------- 01 ----> Vcc 17 ----> LH532HJT (pin 09) 02 ----> Vcc 18 ----> LH532HJT (pin 25) 03 ----> GND 19 ----> LH532HJT (pin 10) 04 ----> ??? 20 ----> LH532HJT (pin 23) 05 ----> LH532HJT (pin 03) 21 ----> LH532HJT (pin 11) 06 ----> LH532HJT (pin 02) 22 ----> LH532HJT (pin 21) 07 ----> LH532HJT (pin 04) 23 ----> LH532HJT (pin 12) 08 ----> LH532HJT (pin 30) 24 ----> LH532HJT (pin 20) 09 ----> LH532HJT (pin 05) 25 ----> LH532HJT (pin 13) 10 ----> LH532HJT (pin 29) 26 ----> LH532HJT (pin 19) 11 ----> LH532HJT (pin 06) 27 ----> LH532HJT (pin 14) 12 ----> LH532HJT (pin 28) 28 ----> LH532HJT (pin 18) 13 ----> LH532HJT (pin 07) 29 ----> LH532HJT (pin 15) 14 ----> LH532HJT (pin 27) 30 ----> LH532HJT (pin 17) 15 ----> LH532HJT (pin 08) 31 ----> GND 16 ----> LH532HJT (pin 26) 32 ----> GND U3 - VTech LH532HJT (9811D) 2Mb mask ROM. Seems to be 27C020 pin compatible. .----v----. VCC --|01 32|-- VCC --|02 31|-- --|03 30|-- --|04 29|-- --|05 28|-- --|06 27|-- --|07 26|-- --|08 25|-- --|09 24|-- --|10 23|-- --|11 22|-- --|12 21|-- --|13 20|-- --|14 19|-- --|15 18|-- GND --|16 17|-- '---------' U2 - Texas Instruments 84C91HT (CSM10150AN). Speech Generator with 8-bit microprocessor, 8K ROM, 112 bytes RAM. Maximum Clock Frequency = 9.6 MHz. Package = DIP16 Technology = CMOS .---v---. --|01 16|-- --|02 15|-- --|03 14|-- --|04 13|-- GND --|05 12|-- VCC --|06 11|-- --|07 10|-- GND --|08 09|-- '-------' ***************************************************************************************/ #include "emu.h" #include "cpu/m6805/m6805.h" #include "rendlay.h" #include "screen.h" class pitagjr_state : public driver_device { public: pitagjr_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_rombank(*this, "rombank") { } required_device m_maincpu; required_memory_bank m_rombank; virtual void machine_start() override; DECLARE_PALETTE_INIT(pitagjr); uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); void pitajr(machine_config &config); void pitajr_mem(address_map &map); }; void pitagjr_state::pitajr_mem(address_map &map) { map(0x0000, 0x00ff).ram(); map(0x1000, 0x1fff).rom(); // boot ROM ??? map(0x2000, 0x3fff).bankr("rombank"); } /* Input ports */ INPUT_PORTS_START( pitajr ) INPUT_PORTS_END void pitagjr_state::machine_start() { m_rombank->configure_entries(0, 0x20, memregion("maincpu")->base(), 0x2000); m_rombank->set_entry(1); } PALETTE_INIT_MEMBER(pitagjr_state, pitagjr) { palette.set_pen_color(0, rgb_t(138, 146, 148)); palette.set_pen_color(1, rgb_t(92, 83, 88)); } uint32_t pitagjr_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { return 0; } MACHINE_CONFIG_START(pitagjr_state::pitajr) /* basic machine hardware */ MCFG_DEVICE_ADD("maincpu", HD63705, XTAL(2'000'000)) // probably a m6805-based MCU with internal boot ROM MCFG_DEVICE_PROGRAM_MAP(pitajr_mem) /* video hardware */ MCFG_SCREEN_ADD("screen", LCD) MCFG_SCREEN_REFRESH_RATE(50) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ MCFG_SCREEN_UPDATE_DRIVER(pitagjr_state, screen_update) MCFG_SCREEN_SIZE( 200, 100 ) // FIXME MCFG_SCREEN_VISIBLE_AREA( 0, 200-1, 0, 100-1 ) MCFG_SCREEN_PALETTE("palette") MCFG_DEFAULT_LAYOUT(layout_lcd) MCFG_PALETTE_ADD("palette", 2) MCFG_PALETTE_INIT_OWNER(pitagjr_state, pitagjr) MACHINE_CONFIG_END /* ROM definition */ ROM_START( pitagjr ) ROM_REGION( 0x40000, "maincpu", 0 ) ROM_LOAD( "lh532hjt_9811d.u3", 0x00000, 0x40000, CRC(23878b45) SHA1(8f3c41c10cfde9d76763c3a8701ec6616db4ab40) ) ROM_END /* Driver */ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 199?, pitagjr, 0, 0, pitajr, pitajr, pitagjr_state, empty_init, "VTech", "Pitagorin Junior", MACHINE_IS_SKELETON )