Use the Sam2695 Dream MIDI chip - Revision history

Minstrel Dragon: Add examples for panning MIDI channels to left and right of stereo field

2025-07-04T11:18:52Z

Add examples for panning MIDI channels to left and right of stereo field

← Older revision		Revision as of 07:18, 4 July 2025
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	Note On as a moderately heavy middle C to channel 0: 0x90, 0x3C, 0x40<br>		Note On as a moderately heavy middle C to channel 0: 0x90, 0x3C, 0x40<br>
	Note Off as a softly released middle C to channel 0: 0x80, 0x3C, 0x00<br>		Note Off as a softly released middle C to channel 0: 0x80, 0x3C, 0x00<br>
			Panning channel 0 to the left of the stereo field: 0xB0, 0x0A, 0x00<br>
			Panning channel 2 to the right of the stereo field: 0xB2, 0x0A, 0x7F<br>
	Changing the instrument of channel 2 to a Slap Bass 1: 0xC2, 0x24<br>		Changing the instrument of channel 2 to a Slap Bass 1: 0xC2, 0x24<br>
	Shut the 6th channel off: 0xB5, 0x7B, 0x00~~<br>~~		Shut the 6th channel off: 0xB5, 0x7B, 0x00

	=== Steps in order to use MIDI IN ===		=== Steps in order to use MIDI IN ===

Minstrel Dragon: corrected middle C in Note On to 0x3C (decimal 60)

2025-06-11T12:16:23Z

corrected middle C in Note On to 0x3C (decimal 60)

← Older revision		Revision as of 08:16, 11 June 2025
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	<p>		<p>
	Note On as a moderately heavy middle C to channel 0: 0x90, ~~0x39~~, 0x40<br>		Note On as a moderately heavy middle C to channel 0: 0x90, 0x3C, 0x40<br>
	Note Off as a softly released middle C to channel 0: 0x80, ~~0x39~~, 0x00<br>		Note Off as a softly released middle C to channel 0: 0x80, 0x3C, 0x00<br>
	Changing the instrument of channel 2 to a Slap Bass 1: 0xC2, 0x24<br>		Changing the instrument of channel 2 to a Slap Bass 1: 0xC2, 0x24<br>
	Shut the 6th channel off: 0xB5, 0x7B, 0x00<br>		Shut the 6th channel off: 0xB5, 0x7B, 0x00<br>
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	=== Steps in order to use MIDI IN ===		=== Steps in order to use MIDI IN ===

	'''MIDI IN refers to an external MIDI controller (ie piano keyboard) that sends MIDI formatted bytes into the Foenix' MIDI in port'''		'''MIDI IN refers to an external MIDI controller (i.e. piano keyboard) that sends MIDI formatted bytes into the Foenix' MIDI in port'''

	First, verify if there are bytes pending in the FIFO buffer by checking if MIDI_STATUS register bit 0 is set to 1 - if so, then create the following loop with steps 2,3,4<br>		First, verify if there are bytes pending in the FIFO buffer by checking if MIDI_STATUS register bit 0 is set to 1 - if so, then create the following loop with steps 2,3,4<br>

1BitFeverDreams: link to datasheet

2025-03-11T16:44:06Z

link to datasheet

← Older revision		Revision as of 12:44, 11 March 2025
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	== Sam2695 Dream IC is in the F256K2 and F256Jr2 only ==		== Sam2695 Dream IC is in the F256K2 and F256Jr2 only ==

	The ~~MIDI specification from MIDI.org~~ can be found in ~~the organization's website~~ https://~~midi~~.~~org~~/~~specs<br>~~		The SAM2695 datasheet can be found in this goodies github repo: https://github.com/Mu0n/F256MiscGoodies/blob/main/datasheets/SAM2695.pdf

	~~There are many tutorials and overview of useful~~ MIDI ~~commands, here is one of them:~~ https://~~www.cs.cmu~~.~~edu/~music~~/~~cmsip/readings/MIDI%20tutorial%20for%20programmers.html<br>~~		The MIDI specification from MIDI.org can be found in the organization's website https://midi.org/specs

	Here's a reference list of General MIDI instruments by number: https://www.ccarh.org/courses/253/handout/gminstruments/<br>		There are many tutorials and overview of useful MIDI commands, here is one of them: https://www.cs.cmu.edu/~music/cmsip/readings/MIDI%20tutorial%20for%20programmers.html

			Here's a reference list of General MIDI instruments by number: https://www.ccarh.org/courses/253/handout/gminstruments/ <br>
	{\| class="wikitable"		{\| class="wikitable"
	\|+		\|+

1BitFeverDreams: /* Steps in order to use MIDI IN */ clarification midi in

2024-12-15T15:17:59Z

Steps in order to use MIDI IN: clarification midi in

← Older revision		Revision as of 11:17, 15 December 2024
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	'''MIDI IN refers to an external MIDI controller (ie piano keyboard) that sends MIDI formatted bytes into the Foenix' MIDI in port'''		'''MIDI IN refers to an external MIDI controller (ie piano keyboard) that sends MIDI formatted bytes into the Foenix' MIDI in port'''

	First, verify if there are bytes pending in the FIFO buffer by checking if MIDI_STATUS register bit 0 is set to 1 - if so, then ~~enter~~ the following loop.<br>		First, verify if there are bytes pending in the FIFO buffer by checking if MIDI_STATUS register bit 0 is set to 1 - if so, then create the following loop with steps 2,3,4<br>
	Second, read MIDI_RXD_COUNT_LOW as the low byte of a 16-bit value and MIDI_RXD_COUNT_HI as the high byte of the same value to see how many loop iterations must be done<br>		Second, read MIDI_RXD_COUNT_LOW as the low byte of a 16-bit value and MIDI_RXD_COUNT_HI as the high byte of the same value to see how many loop iterations must be done<br>
	Third, read a byte from MIDI_FIFO_DATA_PORT. Keep in mind that reading a byte from the buffer 'consumes & removes it' and will reduce the FIFO count by one.<br>		Third, read a byte from MIDI_FIFO_DATA_PORT. Keep in mind that reading a byte from the buffer 'consumes & removes it' and will reduce the FIFO count by one.<br>
	Fourth, if you just want to blindly send the bytes to the SAM2695, then write each byte back to MIDI_FIFO_DATA_PORT as they are parsed<br>		Fourth, if you just want to blindly send the bytes to the SAM2695, then write each byte back to MIDI_FIFO_DATA_PORT as they are parsed<br>
	Optionally, you may want to react to the bytes, analyze them, modify them before sending them off to MIDI_FIFO_DATA_PORT<br><br>		Optionally, you may want to react to the bytes, analyze them, modify them before sending them off to MIDI_FIFO_DATA_PORT<br><br>

1BitFeverDreams: /* Steps in order to use MIDI IN */ added missing extra step in midi in

2024-12-15T15:17:07Z

Steps in order to use MIDI IN: added missing extra step in midi in

← Older revision		Revision as of 11:17, 15 December 2024
Line 53:		Line 53:
	'''MIDI IN refers to an external MIDI controller (ie piano keyboard) that sends MIDI formatted bytes into the Foenix' MIDI in port'''		'''MIDI IN refers to an external MIDI controller (ie piano keyboard) that sends MIDI formatted bytes into the Foenix' MIDI in port'''

	~~<p>~~
	First, verify if there are bytes pending in the FIFO buffer by checking if MIDI_STATUS register bit 0 is set to 1 - if so, then enter the following loop.<br>		First, verify if there are bytes pending in the FIFO buffer by checking if MIDI_STATUS register bit 0 is set to 1 - if so, then enter the following loop.<br>
	Second, read MIDI_RXD_COUNT_LOW as the low byte of a 16-bit value and MIDI_RXD_COUNT_HI as the high byte of the same value to see how many loop iterations must be done<br>		Second, read MIDI_RXD_COUNT_LOW as the low byte of a 16-bit value and MIDI_RXD_COUNT_HI as the high byte of the same value to see how many loop iterations must be done<br>
	Third, if you just want to blindly send the bytes to the SAM2695, then write each byte back to MIDI_FIFO_DATA_PORT as they are parsed<br>		Third, read a byte from MIDI_FIFO_DATA_PORT. Keep in mind that reading a byte from the buffer 'consumes & removes it' and will reduce the FIFO count by one.<br>
	Optionally, you may want to react to the bytes, analyze them, modify them before sending them off to MIDI_FIFO_DATA_PORT<br>		Fourth, if you just want to blindly send the bytes to the SAM2695, then write each byte back to MIDI_FIFO_DATA_PORT as they are parsed<br>
			Optionally, you may want to react to the bytes, analyze them, modify them before sending them off to MIDI_FIFO_DATA_PORT<br><br>
	<br>

1BitFeverDreams: /* Sam2695 Dream IC is in the F256K2 and F256Jr2 only */ formatting

2024-12-15T15:10:35Z

Sam2695 Dream IC is in the F256K2 and F256Jr2 only: formatting

← Older revision		Revision as of 11:10, 15 December 2024
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	'''MIDI OUT picks data from your program and sends it out to the SAM2695 chip as well as the MIDI Out port to an external device.'''		'''MIDI OUT picks data from your program and sends it out to the SAM2695 chip as well as the MIDI Out port to an external device.'''

	Send a MIDI command ~~through~~ 0xDDA1 in rapid sequence.		Send a MIDI command to 0xDDA1 by writing all the bytes of the MIDI command in rapid sequence.
	~~<br>~~

	Note On as a moderately heavy middle C to channel 0: 0x90, 0x39, 0x40		<p>
			Note On as a moderately heavy middle C to channel 0: 0x90, 0x39, 0x40<br>
	Note Off as a softly released middle C to channel 0: 0x80, 0x39, 0x00		Note Off as a softly released middle C to channel 0: 0x80, 0x39, 0x00<br>
	<br>Changing the instrument of channel 0 to a Slap Bass 1: ~~0xC0~~, 0x24		Changing the instrument of channel 2 to a Slap Bass 1: 0xC2, 0x24<br>
			Shut the 6th channel off: 0xB5, 0x7B, 0x00<br>
	Shut the 6th channel off: 0xB5, 0x7B, 0x00

	=== Steps in order to use MIDI IN ===		=== Steps in order to use MIDI IN ===
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	'''MIDI IN refers to an external MIDI controller (ie piano keyboard) that sends MIDI formatted bytes into the Foenix' MIDI in port'''		'''MIDI IN refers to an external MIDI controller (ie piano keyboard) that sends MIDI formatted bytes into the Foenix' MIDI in port'''

	First, verify if there are bytes pending in the FIFO buffer by checking if MIDI_STATUS register bit 0 is set to 1 - if so, then enter the following loop.		<p>
			First, verify if there are bytes pending in the FIFO buffer by checking if MIDI_STATUS register bit 0 is set to 1 - if so, then enter the following loop.<br>
	Second, read MIDI_RXD_COUNT_LOW as the low byte of a 16-bit value and MIDI_RXD_COUNT_HI as the high byte of the same value to see how many loop iterations must be done		Second, read MIDI_RXD_COUNT_LOW as the low byte of a 16-bit value and MIDI_RXD_COUNT_HI as the high byte of the same value to see how many loop iterations must be done<br>
			Third, if you just want to blindly send the bytes to the SAM2695, then write each byte back to MIDI_FIFO_DATA_PORT as they are parsed<br>
	Third, if you just want to blindly send the bytes to the SAM2695, then write each byte back to MIDI_FIFO_DATA_PORT as they are parsed		Optionally, you may want to react to the bytes, analyze them, modify them before sending them off to MIDI_FIFO_DATA_PORT<br>

	Optionally, you may want to react to the bytes, analyze them, modify them before sending them off to MIDI_FIFO_DATA_PORT

	<br>		<br>

1BitFeverDreams: /* Sam2695 Dream IC is in the F256K2 and F256Jr2 only */ added midi in part and added examples to midi out

2024-12-15T15:07:55Z

Sam2695 Dream IC is in the F256K2 and F256Jr2 only: added midi in part and added examples to midi out

@@ Line 44: / Line 44: @@
 <br>
-Moderately heavy middle C to channel 0: 0x90, 0x40, 0x40<br>
+Note On as a moderately heavy middle C to channel 0: 0x90, 0x39, 0x40
 Changing the instrument of channel 0 to a Slap Bass 1: 0xC0, 0x24<br>

1BitFeverDreams: /* Sam2695 Dream IC is in the F256K2 and F256Jr2 only */

2024-11-11T01:10:46Z

Sam2695 Dream IC is in the F256K2 and F256Jr2 only

← Older revision		Revision as of 21:10, 10 November 2024
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	Moderately heavy middle C to channel 0: 0x90, 0x40, 0x40<br>		Moderately heavy middle C to channel 0: 0x90, 0x40, 0x40<br>
	Changing the instrument of channel 0 to a Slap Bass 1: 0xC0, 0x24<br>		Changing the instrument of channel 0 to a Slap Bass 1: 0xC0, 0x24<br>
	~~=== Steps in order to use MIDI IN ===~~
	~~'''MIDI IN takes in data from a MIDI in socket and sends it out to the SAM2695 chip. For example, a keyboard synth could be plugged in that port and drive the MIDI events.'''~~

	~~to do: revise this with an accurate procedure.<br><br>~~

1BitFeverDreams: /* Sam2695 Dream IC is in the F256K2 and F256Jr2 only */ accurate information as per the FPGA load from Nov11th 2024

2024-11-11T00:59:04Z

Sam2695 Dream IC is in the F256K2 and F256Jr2 only: accurate information as per the FPGA load from Nov11th 2024

@@ Line 6: / Line 6: @@
 Here's a reference list of General MIDI instruments by number: https://www.ccarh.org/courses/253/handout/gminstruments/<br>
 === Steps in order to use MIDI OUT ===
@@ Line 16: / Line 46: @@
 Moderately heavy middle C to channel 0: 0x90, 0x40, 0x40<br>
 Changing the instrument of channel 0 to a Slap Bass 1: 0xC0, 0x24<br>
 === Steps in order to use MIDI IN ===
 '''MIDI IN takes in data from a MIDI in socket and sends it out to the SAM2695 chip. For example, a keyboard synth could be plugged in that port and drive the MIDI events.'''
-to do: revise this with an accurate procedure.<br>
+to do: revise this with an accurate procedure.<br><br>

1BitFeverDreams: midi in description

2024-11-02T18:14:48Z

midi in description

← Older revision		Revision as of 14:14, 2 November 2024
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	=== Steps in order to use MIDI IN ===		=== Steps in order to use MIDI IN ===
			'''MIDI IN takes in data from a MIDI in socket and sends it out to the SAM2695 chip. For example, a keyboard synth could be plugged in that port and drive the MIDI events.'''

	to do: revise this with an accurate procedure.<br>		to do: revise this with an accurate procedure.<br>