Difference between revisions of "M0dularis+"

Latest revision as of 05:56, 18 October 2019

M0dularis+
M0dularis+ Controller with µBCU
Developer	Alexander Christian
Status/Current Version	Working and stable / Version 1.1
µC	Atmel/Microchip SAMD21G18J
KNX	Siemens BCU / Micro BCU

Description

Controller-Board, mainly designed for OKW 4TE REG case, but also useable with anything else that fits. Can be used with Siemens BCU and Eugen's µBCU. Uses the powerful SAMD21 microcontroller from Microchip/Atmel and has optional I²C EEPROM and SPI Flash.

Hardware

This controller uses the same microcontroller IC as the Arduino Zero (https://store.arduino.cc/usa/arduino-zero). So you can use it almost the same way. The only difference:

no EDBG connector
different formfactor and connectors
and therefore, partially different pins

Features

The design principle was: Get the most of out of the Arduino Zero (wrt Pins and Features) and fit into the modular concept of KONNEKTING. Everything that is not available, can be added via I2C or SPI or UART. So even if there are not much PWM capable pins available (which won't let you build a 16 channel PWM dimmer), you can add PWM via I2C. Same counts for general purpose IO pins.

11 pins with external interrupt
8 pins with PWM up to 10bit (more pins and up to 16bit when using this library [1])
up to 3x SPI
up to 3x UART
up to 3x I2C

Application Connector

				Description	Pin		Description
				GND / KNX GND	1	2	GND from 24V Input
			SJ: 3.3V or 5V	VCC	3	4	24V from 24V Input
	TX3		PA22/SDA#	SDA / IO0	5	6	IO3	SJ: PA19/D12*# or PA02/A0	MISO1	RX1
	RX3		PA23/SCL#	SCL / IO1	7	8	ExtINT Application / IO2	SJ: PA18/D10*# or PB09/A2	SS1	TX1
SDA2	RX2	MISO2	PA09/D3*#	Option0	9	10	Option7	PA17/D13*#	SCK1	RX1	SCL1
SCL2	TX2	MOSI2	PA08/D4*	Option1	11	12	Option6	PA16/D11*#	MOSI1	TX1	SDA1
		SCK2	PA15/D5*#	Option2	13	14	Option5	PA20/D6*#
		SS2	PA14/D2#	Option3	15	16	Option4	PA21/D7#

SJ = solder jumper
* = PWM capable
# = INT capable

See [2] for more details

You can configure different settings via solder-jumper (SJ):

IO3: D12 or A0
IO2: D10 or A2
Application connector: 5V or 3.3V
Frontend connector: 5V or 3.3V
I2C (on IO0/IO1): PullUp or NoPullUp

OnBoard Connections

ProgButton*: D15 (/ A1 [EIC8])
ProgLED: D19 (/ A5)
BCU Save: D17 (/ A3 [EIC4])
BCU Reset: Solder jumper for connecting SAMD-RESET and BCU-RESET Pin
ExtInt TOP*: D38 ([EIC13])
SPI Flash
- CS: D9
- DO/IO1: PA12 / D22 MISO
- DI/IO0: PB10 / D23 MOSI
- CLK: PB11 / D24 SCK

* = PWM capable

Version Changelog

v1.0

initial Version

v1.1

improved silk-screen on top. no change in drills, vias or traces. Electrically identical to v1.0

Developer Documentation

How to use SPI Flash

I recommend to use this SPI Flash Library: https://github.com/Marzogh/SPIFlash

You need to explicitly tell the library the CS-Pin:

1// set CS pin to D9
2SPIFlash flash(9);

For testing, you can use https://github.com/Marzogh/SPIFlash/tree/development/examples/TestFlash and modify the said line to use the custom CS pin D9.

@@ Line 1: / Line 1: @@
 {| class="wikitable" style="float:right;margin-left: 15px;margin-top: 15px; margin-bottom: 15px;"
-! colspan="2"|M0dularis M+
+! colspan="2"|M0dularis+
 |-
-! colspan="2"|[[File:M0dularisM Plus.jpg|300px|thumb|center|M0dularisM+ Controller with µBCU]]
+! colspan="2"|[[File:M0dularisM Plus.jpg|300px|thumb|center|M0dularis+ Controller with µBCU]]
 |-
 ! Developer
@@ Line 8: / Line 8: @@
 |-
 ! Status/Current Version
-| Version 1.0 already works
+| Working and stable / Version 1.1
 |-
 ! µC
@@ Line 26: / Line 26: @@
 == Hardware ==
+This controller uses the same microcontroller IC as the Arduino Zero (https://store.arduino.cc/usa/arduino-zero). So you can use it almost the same way. The only difference:
+* no EDBG connector
+* different formfactor and connectors
+* and therefore, partially different pins
+=== Features ===
+The design principle was: Get the most of out of the Arduino Zero (wrt Pins and Features) and fit into the modular concept of KONNEKTING. Everything that is not available, can be added via I2C or SPI or UART. So even if there are not much PWM capable pins available (which won't let you build a 16 channel PWM dimmer), you can add PWM via I2C. Same counts for general purpose IO pins.
+* 11 pins with external interrupt
+* 8 pins with PWM up to 10bit (more pins and up to 16bit when using this library [https://github.com/Adminius/DimmerZero/blob/master/readme.md])
+* up to 3x SPI
+* up to 3x UART
+* up to 3x I2C
 === Application Connector ===
@@ Line 35: / Line 51: @@
 ! scope="col"|
 ! scope="col"|Description
-! scope="col"|Pin
+! scope="col" colspan="2"|Pin
-! scope="col"|Pin
 ! scope="col"|Description
 ! scope="col"|
@@ Line 60: / Line 75: @@
 |
 |
-|
+|SJ: 3.3V or 5V
 | style="background-color: red;"|VCC
 |3
@@ Line 73: / Line 88: @@
 |TX3
 |
-|PA22 / SDA
+|PA22/SDA#
 | style="background-color: yellow;"|SDA / IO0
 |5
 |6
 | style="background-color: limegreen;"|IO3
-|SJ: PA19/D12 od. PA02/A0
+|SJ: PA19/D12*# or PA02/A0
 |MISO1
 |RX1
@@ Line 86: / Line 101: @@
 |RX3
 |
-|PA23 / SCL
+|PA23/SCL#
 | style="background-color: yellow;"|SCL / IO1
 |7
 |8
 | style="background-color: lightblue;"|ExtINT Application / IO2
-|SJ: PA18/D10 od. PB09/A2
+|SJ: PA18/D10*# or PB09/A2
 |SS1
 |TX1
@@ Line 99: / Line 114: @@
 |RX2
 |MISO2
-|PA09 / D3
+|PA09/D3*#
 | style="background-color: mediumseagreen;"|Option0
 |9
 |10
 | style="background-color: mediumseagreen;"|Option7
-|PA17 / D13
+|PA17/D13*#
 |SCK1
 |RX1
@@ Line 112: / Line 127: @@
 |TX2
 |MOSI2
-|PA08 / D4
+|PA08/D4*
 | style="background-color: mediumseagreen;"|Option1
 |11
 |12
 | style="background-color: mediumseagreen;"|Option6
-|PA16 / D11
+|PA16/D11*#
 |MOSI1
 |TX1
@@ Line 125: / Line 140: @@
 |
 |SCK2
-|PA15 / D5
+|PA15/D5*#
 | style="background-color: mediumseagreen;"|Option2
 |13
 |14
 | style="background-color: mediumseagreen;"|Option5
-|PA20 / D6
+|PA20/D6*#
 |
 |
@@ Line 138: / Line 153: @@
 |
 |SS2
-|PA14 / D2
+|PA14/D2#
 | style="background-color: mediumseagreen;"|Option3
 |15
 |16
 | style="background-color: mediumseagreen;"|Option4
-|PA21 / D7
+|PA21/D7#
 |
 |
 |
 |}
+''<nowiki>SJ</nowiki> = solder jumper''<br/>
+''<nowiki>*</nowiki> = PWM capable''<br/>
+''<nowiki>#</nowiki> = INT capable''
+See [https://github.com/arduino/ArduinoCore-samd/blob/master/variants/arduino_zero/variant.cpp] for more details
-You can decide via solder-jumper between
+You can configure different settings via solder-jumper (SJ):
 * IO3: D12 or A0
 * IO2: D10 or A2
-* Application connector: 5V and 3.3V on
+* Application connector: 5V or 3.3V
-* Frontend connector: 5V and 3.3V on
+* Frontend connector: 5V or 3.3V
-* I2C (on IO0/IO1): PullUp or No PullUp for
+* I2C (on IO0/IO1): PullUp or NoPullUp
 === OnBoard Connections ===
-* '''ProgButton*''': D15 / A1 [EIC8]
+* '''ProgButton*''': D15 (/ A1 [EIC8])
-* '''ProgLED''': D19 / A5
+* '''ProgLED''': D19 (/ A5)
-* '''BCU Save*''': D17 / A3 [EIC4]
+* '''BCU Save''': D17 (/ A3 [EIC4])
-* '''BCU Reset*''': Solder jumper for connecting SAMD-RESET and BCU-RESET Pin
+* '''BCU Reset''': Solder jumper for connecting SAMD-RESET and BCU-RESET Pin
-* '''ExtInt TOP*''': D38 [EIC13]
+* '''ExtInt TOP*''': D38 ([EIC13])
 * '''SPI Flash'''
 ** '''CS''': D9
@@ Line 173: / Line 192: @@
 ** '''CLK''':	PB11 / D24 SCK
-\* = PWM capable
+''<nowiki>*</nowiki> = PWM capable''
+== Version Changelog ==
-== Software ==
+=== v1.0 ===
+initial Version
+=== v1.1 ===
+* improved silk-screen on top. no change in drills, vias or traces. Electrically identical to v1.0
 == Developer Documentation ==
+=== How to use SPI Flash ===
+I recommend to use this SPI Flash Library: https://github.com/Marzogh/SPIFlash
+You need to explicitly tell the library the CS-Pin:
+<syntaxhighlight lang=c++ line>
+// set CS pin to D9
+SPIFlash flash(9);
+</syntaxhighlight>
+For testing, you can use https://github.com/Marzogh/SPIFlash/tree/development/examples/TestFlash and modify the said line to use the custom CS pin D9.
 == Build It ==