Hardware - Revision history

1BitFeverDreams: /* Wildbits/Jr2 or F256Jr2 Hat */

2026-06-05T04:23:32Z

Wildbits/Jr2 or F256Jr2 Hat

← Older revision		Revision as of 00:23, 5 June 2026
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	=== Wildbits/Jr2 or F256Jr2 Hat ===		=== Wildbits/Jr2 or F256Jr2 Hat ===
	The Wildbits/Jr2 (also F256Jr2) can accomodate a PCB hat to accodomate MIDI in, MIDI out and JOY1 and JOY2 atari style joysticks ports. It was created by Mike Cassera and finalized in 2026.		The Wildbits/Jr2 (also F256Jr2) can accomodate a PCB hat to accodomate MIDI in, MIDI out and JOY1 and JOY2 atari style joysticks ports. It was created by Mike Cassera and finalized in 2026.
			[[File:PXL 20260528 023311245.jpg\|thumb\|PCB hat with MIDI in, MIDI out and 2 atari style joystick port make by Mike C (2026)]]

	The schematics of the hat can be found here: https://github.com/Mu0n/F256MiscGoodies/blob/main/datasheets/Hat_schematics.png		The schematics of the hat can be found here: https://github.com/Mu0n/F256MiscGoodies/blob/main/datasheets/Hat_schematics.png

	The soldering instructions can be found here: https://github.com/Mu0n/F256MiscGoodies/blob/main/datasheets/HAT_assembly_instr.pdf		The soldering instructions can be found here: https://github.com/Mu0n/F256MiscGoodies/blob/main/datasheets/HAT_assembly_instr.pdf

2026-06-05T04:20:37Z

Jr2 hat

← Older revision		Revision as of 00:20, 5 June 2026
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	=== Header Pinout Diagram for F256JrJr ===		=== Header Pinout Diagram for F256JrJr ===
	[[File:JrJr_header_pinout.png\|none\|thumb\|Pinout diagram for F256 JrJr header]]		[[File:JrJr_header_pinout.png\|none\|thumb\|Pinout diagram for F256 JrJr header]]

			=== Wildbits/Jr2 or F256Jr2 Hat ===
			The Wildbits/Jr2 (also F256Jr2) can accomodate a PCB hat to accodomate MIDI in, MIDI out and JOY1 and JOY2 atari style joysticks ports. It was created by Mike Cassera and finalized in 2026.

			The schematics of the hat can be found here: https://github.com/Mu0n/F256MiscGoodies/blob/main/datasheets/Hat_schematics.png

			The soldering instructions can be found here: https://github.com/Mu0n/F256MiscGoodies/blob/main/datasheets/HAT_assembly_instr.pdf

2026-06-01T04:06:38Z

Hardware Overview and Comparison

← Older revision		Revision as of 00:06, 1 June 2026
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	CPU		CPU
	\|		\|
	WDC W65C02S<br/>		WDC W65C02S (standard)<br/>
	WDC W65C816S<br/>		WDC W65C816S (optional)<br/>
	Foenix FNX6809<br/>		Foenix FNX6809 (optional)<br/>
	\|		\|
	onboard TQFP – WDC W65C816 CPU<br/>		onboard TQFP – WDC W65C816 CPU<br/>
	Motorola 6809 (optional FPGA configuration)		Motorola 6809 (optional FPGA configuration)
	\|		\|
	WDC W65C02S<br/>		WDC W65C02S (standard)<br/>
	WDC W65C816S<br/>		WDC W65C816S (optional)<br/>
	Foenix FNX6809<br/>		Foenix FNX6809 (optional)<br/>
	\|		\|
	onboard TQFP – WDC W65C816 CPU<br/>		onboard TQFP – WDC W65C816 CPU<br/>

2026-01-27T15:19:53Z

Hardware Overview and Comparison

← Older revision		Revision as of 11:19, 27 January 2026
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	\|		\|
	2MB SRAM (1Mx16) On Board (could be limited by Core)<br/>		2MB SRAM (1Mx16) On Board (could be limited by Core)<br/>
	128 MB DRAM (DDR3 (64Mx16)<br/>		128 MB DRAM (DDR3, 64Mx16)<br/>
	Optional 256K RAM expansion module available<br/>		Optional 256K RAM expansion module available<br/>
	\|- style="vertical-align:top;"		\|- style="vertical-align:top;"

2026-01-03T00:24:29Z

2026-01-03T00:23:11Z

Hardware Overview and Comparison

← Older revision		Revision as of 20:23, 2 January 2026
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	\|Artix 7 XC7A35T		\|Artix 7 XC7A35T
	33,280 Logic cells		33,280 Logic cells
	1,~~800kbit~~ BRAM		1,800 kb BRAM
	\|Cyclone IV EP4CE15		\|Cyclone IV EP4CE15
	15,408 Logic elements		15,408 Logic elements
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	\|Artix 7 XC7A200T		\|Artix 7 XC7A200T
	215,360 Logic cells		215,360 Logic cells
	13,~~140kb~~ BRAM		13,140 kb BRAM
	\|- style="vertical-align:top;"		\|- style="vertical-align:top;"
	! scope="col" style="text-align:left;" \|		! scope="col" style="text-align:left;" \|

2026-01-03T00:22:20Z

Hardware Overview and Comparison

2026-01-03T00:18:22Z

Hardware Overview and Comparison

← Older revision		Revision as of 20:18, 2 January 2026
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	\|- style="vertical-align:top;"		\|- style="vertical-align:top;"
	! scope="col" style="text-align:left;" \|		! scope="col" style="text-align:left;" \|
	Graphic ~~Chip~~		Graphic Core
	\|		\|
	TinyVicky		TinyVicky

2026-01-03T00:06:30Z

Hardware Overview and Comparison: Added FPGA descriptions

@@ Line 61: / Line 61: @@
 KB Per Context (4x Contexts)<br/>
 Optional 256K Flash Modules<br/>
 |- style="vertical-align:top;"
 ! scope="col" style="text-align:left;" |

2025-02-28T14:56:28Z

Extra brackets removed in link

← Older revision		Revision as of 10:56, 28 February 2025
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	=== Frequencies for sound chips ===		=== Frequencies for sound chips ===

	The base frequency for which the various sound chips derive their own frequencies is based on the [[https://en.wikipedia.org/wiki/Crystal_oscillatir_frequencies 14.31818 MHz NTSC M color subcarrier]], used in various computing architectures, such as the PC ISA bus. The exact generating formula is 315/22 MHz.		The base frequency for which the various sound chips derive their own frequencies is based on the [https://en.wikipedia.org/wiki/Crystal_oscillatir_frequencies 14.31818 MHz NTSC M color subcarrier], used in various computing architectures, such as the PC ISA bus. The exact generating formula is 315/22 MHz.

	The OPL3 chip uses 14.31818 MHz.		The OPL3 chip uses 14.31818 MHz.