Core32 Module

j27 j5c j5b j5a j1 j19 j3 j26 j23 j18 j11 j16 j8/9 j4 j24 j25 j2 j17 r31 r30 r32 r33 r2 r13 r12 r7 r8 d2 r20 r19 r21 r22 r18 d3 r25 r24 r10 r9 r14 r15 r23 r26 r27 StatusLED r11 d1 c1/c2 c16 c5 c3 c6 c4 c7 c14 c9 ic7 ic6 x1 p2 t1 c8 c10 c13 ic2 ic1 c17 q1 ic4 ic5 j22/usb

Live Board Map:
Move your mouse around over the image below to see info on the parts.



Parts List:
MBHP CORE_32 Orderlist
+------------------------------------+-------+--------------------+
| Description                        | Qty   | Mouser Part #      |
+------------------------------------+-------+--------------------+
| Voltage Regulator 7805             |     1 | 511-L7805CV        |
| Voltage Regulator LF33             |     1 | 511-LF33CV         |
| Optocoupler 6N138                  |     2 | 512-6N138          |
| IC-Sockets for Optocoupler         |     2 | 571-1-390261-2     |
| Diode 1N4148                       |     3 | 78-1N4148          |
| Transistor BC337                   |     1 | 512-BC33725TA      |
| 74HC595                            |     1 | 595-SN74HC595N     |
| IC-Socket for 74HC595              |     1 | 571-1-390261-4     |
| Crystal 12 MHz                     |     1 | 815-ABL-12-B2      |
| Ceramic Cap 33 pF                  |     2 | 140-50N5-330J-RC   |
| Ceramic Cap 100 nF                 |     9 | 21RZ310-RC         |
| Ceramic Cap 330 nF                 |     1 | 80-C320C334M5U     |
| Polarised Capacitor 10 µF 25v      |     1 | 140-HTRL25V10-RC   |
| Polarised Capacitor 47 µF 25v      |     1 | 140-HTRL25V47-RC   |
| Polarised Capacitor 100 µF 16v     |     1 | 140-HTRL16V100-RC  |
| Polarised Capacitor 2200 µF 16v    |     1 | 140-HTRL16V2200-RC |
| Resistor 100 kΩ                    |     1 | 291-100K-RC        |
| Resistor 10 kΩ                     |     1 | 291-10K-RC         |
| Resistor 4.7 kΩ                    |     2 | 291-4.7K-RC        |
| Resistor 2.2 kΩ                    |     2 | 291-2.2K-RC        |
| Resistor 1 kΩ                      |     5 | 291-1K-RC          |
| Resistor 470 Ω                     |     1 | 291-470-RC         |
| Resistor 220 Ω                     |     6 | 291-220-RC         |
| Resistor 27 Ω                      |     2 | 291-27-RC          |
| Resistor Network 4*10 kΩ "103"     |     1 | 652-4605X-1LF-10K  |
| Resistor Network 4*1 kΩ "102"      |     3 | 652-4605X-1LF-1K   |
| Resistor Network 4*220 Ω "221"     |     1 | 652-4605X-1LF-220  |
| TrimmPot 10 kΩ                     |     2 | 531-PT6KV-10K      |
| Green Status LED                   |     1 | 859-LTL-4232N      |
| Bridge Rectifier                   |     1 | 625-W06G-E4        |
| USB Socket B-Type                  |     1 | 649-61729-1010BLF  |
| PCB MIDI sockets                   |     4 | 161-0504-E         |
| 2x5 DIL Headers                    |     7 | 517-30310-6002     |
| 2x8 DIL Headers                    |     2 | 517-30316-6002     |
| 2x10 DIL Header                    |     1 | 517-30320-6002     |
| 1-row SIL Headers (25 pins)  	     |     1 | 517-6111TG         |
| 1-row SIL socket (3 * 5 pins)      |     1 | 517-984-01-05      |
| Jumpers                            |     6 | 151-8033-E         |
+------------------------------------+-------+--------------------+


PCBs and Kits are available: Click to order.



PCB Quick View:



Connections:
#
Detail Description                              
J1
Connection to a powersupply unit (PSU). A 7V-10V transformer, or a wall adapter could be used. At least 500 mA is recommended, especially if a backlit display is connected. AC or DC doesn't matter, since the rectifier behind J1 converts to DC anyhow. Also the polarity does not have to be taken into account.
J2
When used as +5V output: to supply modules which are not connected to a Jxx port which already provides a 5V output. Note that the 7805 gets very hot when it delivers currents above 500 mA. Maximum current drain is 1A! When used as +5V input: for supplying the core from an external stabilized Power Supply Unit (PSU). The voltage regulator (IC3) doesn't need to be connected, also the rest of the voltage stabilization circuit between J1 and J2 (X1, C8, C9) can be left out. If the core module (and all connected modules to this branch) drains more than 100 mA, it's recommended to mount C8 directly to J2 (a small cable between the outer soldering pads of the left-out 7805 will do this).
J3
Standard JTAG 20 pin interface, see this page for details.
J4
IIC port. Interface to BankSticks or to MBHP_IIC_* modules like MBHP_IIC_MIDI.
J5A
J5B
J5C
Analog sources (like pots) can be connected to this port (12 pots maximum). If multiplexed via AIN module, up to 96 pots can be scanned. There are also some application which use this pin as digital in- or output (mostly described in README.txt file).
J8/J9
J8 is the interface to the DOUT module chain, whereas J9 is the interface to the DIN module chain.
J11
This port provides two MIDI IOs at TTL level, interface to the LED/Thru/COM module. Can also be used to cascade multiple core modules in a MIDI chain (see MIDIbox Link). Note: It's possible to distribute the Tx (MIDI Out) signal to multiple cores, but it isn't allowed to connect more than one Tx output to a Rx input. Instead, a MIDImerger is necessary to combine multiple MIDI IN sources.
J12/J20
MIDI OUT ports 1 and 2. See the schematic to connect a MIDI socket to this port.
J13/J21
MIDI IN ports 1 and 2. See the schematic to connect a MIDI socket to this port.
J15A
J15B
Interface to one or two LCD module(s). Please note that the pinout is different compared to the MBHP_CORE module!
J16
SPI Interface to SD Card and SPI based Ethernet Interface. Such modules can be easily connected with a single 10-wire ribbon cable and 3 IDC connectors as shown in this picture.
J17
This jumper enables power supply via USB. Before closing the jumper, ensure that any other supply sources (e.g. at J1 or J2) are removed to avoid shorts or backcurrents to your PC!
J18
CAN interface at TTL level as used by MBNet.
Please note, that STM32 doesn't allow the use of CAN and USB at the same time, since these peripherals share the same memory.
J19
Interface to application specific module extensions like the SID module and/or AOUT module. Prepared for serial interfaces (although not driven by an integrated SPI), two chip select lines are available, additional select lines can be taken from free pins.
J22
The core module power can be supplied via USB.
In addition, this port gives you a "MIDI USB" and/or "Virtual COM" interface. Also protocols like "Mass Storage Device" to access a SD Card directly from a computer are possible, but unfortunately Windows XP and Vista don't allow to use the appr. drivers in parallel, Windows could even crash when the USB cable is connected, therefore only one protocol is activated by default. However, parallel usage of multiple protocols works fine under Mac OS and Linux when explicitely enabled in the MIOS32 configuration. Applications can be updated via USB port, it's the fastest option.
J23
Boot mode jumpers. See schematic for the 4 available options.
The application is started when these jumpers are NOT connected!
J24
5V/3.3V supply options for serial ports.
J25
5V/3.3V supply options for serial ports.
J26
5V/3.3V supply options for serial ports.
J27
Boot mode jumpers. See schematic for the 4 available options.
The application is started when these jumpers are NOT connected!


Resistor Placement:


Changelog:
1.23.10:
Parts list changes - 
	Removed 1 10kΩ resistor
	Changed SIL pinheader count from 20 to 25

For complete technical info and instructions see www.midibox.org