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+This page will contain all of the information about the Coresound synth
+link to forum topic: http://www.midibox.org/forum/index.php?topic=8150.0
+====== Introduction ======
+Coresound is a digital synthesiser module based on the midibox platform.\\
+todo: add more info
+====== Features ======
+  * Digital synthesiser for microchip pic microcontrollers
+  * 24 bit phase accumulator for frequency control
+  * wavetable signal generation
+  * waveshaper with 3 modes: hardclip, softclip and foldover
+  * 16 bit digital filter
+  * uses a modified [[midibox_sid]] engine for control/modulation
+====== Software ======
+===== v0.1 =====
+This version uses a lfo, cc and env code from mb_sid v1.7\\
+the dco is a wavetable oscillator based on the Wiard Wavecity ROM
+===== v0.2 =====
+From v0.2 the modulation/control/cs will be seperated from the actual sound generation\\
+The data exchangement method is not decided yet, MBNET seems the best choice right now\\
+see this forum topic for more information: http://www.midibox.org/forum/index.php?topic=8328.0\\
+The sound unit registers will be refreshed each time the control routine is executed (f = 1kHz)
+==== Control unit ====
+The control unit will be based on the midibox sid engine\\
+but will be adapted to control the sound unit parameters.
+==== Sound unit ====
+The first tests will be done with the wavetable dco from v0.1,\\
+after this works alternate dco implementations will be tried
+Register specification:\\
+  * Satus register:
+    * Status: 1 byte
+  * DCO registers:
+    * Pitch: 3 bytes
+    * Waveform: 1 byte
+    * Interpolation: 1 byte
+    * Phase: 1 byte
+    * Free: 2nd oscillator: 6 bytes
+  * Waveshaper registers:
+    * Mode: 1 byte
+    * Type: 1 byte
+  * DCF registers:
+    * Cutoff: 1 byte
+    * Resonance: 1 byte
+    * Filter type: 1 byte
+  * DCA registers:
+    * Level: 1 byte
+==== MBNET ====
+My experiences with setting up a MBNET client:
+  * Copied MBNET.inc and SID_MBNET.inc from the sid folder to the project directory
+  * Renamed the SID_MBNET.inc to CRSND_MBNET.inc, changed all lables inside the file from SID_* to CRSND_*
+  * Changed the lables inside MBNET.inc to the new lables
+  * Copied the ping info from main.inc to my main .asm file, changed:
+<code>
+;; MBNET specific definitions (ping reply information - don't touch this!)
+#define MBNET_CONST_PROTOCOL_V		1
+#define MBNET_CONST_TYPE_C0		'S'
+#define MBNET_CONST_TYPE_C1		'I'
+#define MBNET_CONST_TYPE_C2		'D'
+#define MBNET_CONST_TYPE_C3		' '
+#define MBNET_CONST_TYPE_VERSION	1
+#define MBNET_CONST_TYPE_SUBVERSION	4685
+</code>
+into:
+<code>
+#define MBNET_CONST_PROTOCOL_V		1
+#define MBNET_CONST_TYPE_C0		'C'
+#define MBNET_CONST_TYPE_C1		'R'
+#define MBNET_CONST_TYPE_C2		'S'
+#define MBNET_CONST_TYPE_C3		'D'
+#define MBNET_CONST_TYPE_VERSION	0
+#define MBNET_CONST_TYPE_SUBVERSION	2
+</code>
+  * Added the variables for MBNET in my app_defines.h:
+<code>
+MBNET_BASE		EQU	0x600	; used for SET_BSR
+MBNET_STATE		EQU	0x600
+MBNET_RX_BUFFER_PTR_L	EQU	0x601
+MBNET_RX_BUFFER_PTR_H	EQU	0x602
+MBNET_MY_ID		EQU	0x603
+MBNET_MASTER_ID		EQU	0x604
+MBNET_SLAVE_ID		EQU	0x605
+MBNET_TOS		EQU	0x606
+MBNET_EID_L		EQU	0x607
+MBNET_EID_H		EQU	0x608
+MBNET_NODE_AVAIL	EQU	0x609
+MBNET_NODE_INCOMPATIBLE	EQU	0x60a
+MBNET_TIMEOUT_CTR_L	EQU	0x60b
+MBNET_TIMEOUT_CTR_H	EQU	0x60c
+MBNET_LOOP_CTR		EQU	0x60d
+MBNET_RETRY_WAIT_CTR	EQU	0x60e
+MBNET_RETRY_NODE	EQU	0x60f
+MBNET_RETRY_NODE_CTR_BEGIN EQU	0x610	; ..0x617
+MBNET_NODE_INFO_BEGIN	EQU	0x620	; ..0x65f  ; (8*8 bytes)
+</code>
+  * To be continued :-)
+====== Hardware ======
+===== v0.1 =====
+The hardware of the first version consists of a standard core board
+and a DAC module with a anti-aliasing filter
+==== Schematic ====
+{{coresound:coresound.jpg?300x*}} click to enlarge \\
+==== Connection diagram ====
+connection to core:
+^coresound pin ^core pin ^pic pin nr ^
+|1 	|ground	|-|
+|2 	|J15:D7	|40|
+|3 	|J15:D6	|39|
+|4 	|J15:D5	|38|
+|5 	|J15:D4	|37|
+|6 	|J15:D3	|36|
+|7 	|J15:D2	|35|
+|8 	|J15:D1	|34|
+|9 	|J15:D0	|33|
+|10 	|J14	|-|
+|11 	|+5v    |-|
+===== v0.x =====
+The final version will use two pics, more info will follow
+==== Schematic ====
+Not available yet
+====== Todo ======
+====== Suggestions ======
+Everybody can add suggestions here...\\
+\\
+\\
+back to [[user_projects]]
+other projects by [[mess]]