From 8dd6c849d5493ca9e662dae16a466854a5a1c71f Mon Sep 17 00:00:00 2001 From: Onmp314 <71551115+Onmp314@users.noreply.github.com> Date: Sat, 20 Feb 2021 06:50:22 +0100 Subject: actions_atj2279b.cpp: add notes (#7392) --- src/mame/drivers/actions_atj2279b.cpp | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/src/mame/drivers/actions_atj2279b.cpp b/src/mame/drivers/actions_atj2279b.cpp index fa28e4d122a..0139906184f 100644 --- a/src/mame/drivers/actions_atj2279b.cpp +++ b/src/mame/drivers/actions_atj2279b.cpp @@ -7,6 +7,11 @@ connects to other PCBs with various types of slots (USB, SD etc.) (ADD FULL DETAILS) + Specifications (incomplete and unconfirmed): + CPU: 450 MHz ATJ227X with intergrated GPU + SDRAM: 256MB + (source: http://wecmuseum.org/index.php?title=Retro-Bit_Generations) + TODO: everything - emulate the SoC Presumably has an internal bootstrap (at least) to boot from the NAND @@ -72,14 +77,14 @@ uint32_t actions_atj2279b_state::screen_update(screen_device &screen, bitmap_rgb void actions_atj2279b_state::actions_atj2279b(machine_config &config) { - ARM7_BE(config, m_maincpu, 100'000'000); // unknown ARM type in SoC (are there any documents?) probably much newer than this + ARM7_BE(config, m_maincpu, 450'000'000); // Probably ATJ227X 450MHz, but this needs to be checked more closely m_maincpu->set_addrmap(AS_PROGRAM, &actions_atj2279b_state::atj2279b_map); screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); screen.set_refresh_hz(60); screen.set_vblank_time(ATTOSECONDS_IN_USEC(0)); - screen.set_size(640, 480); - screen.set_visarea(0, 640-1, 0, 480-1); + screen.set_size(1280, 720); + screen.set_visarea(0, 1280-1, 0, 720-1); // resolution unconfirmed (possibly 1080p as well, but this is unlikely) screen.set_screen_update(FUNC(actions_atj2279b_state::screen_update)); SPEAKER(config, "lspeaker").front_left(); -- cgit v1.2.3