The I2C Adress of PowerSources (analog) is 0x61 to 0x67.


The I2C Databuffer is stored in the slave.
It's written by the master and read by the master.
The only values changed by the slave are: Checksum valid/invalid and the coressponding Checksum .
The master should always set this bit to "1".

Checksum is calculated including Adress. Startvalue is 0x00

I2C Databuffer

Checksum Byte #	Register Byte #
0x00	--	Adress
0x01	0x00	Flag register
0x02	0x01	Datatype
0x03	0x02	Data
0x04	0x03	Checksum

Flag register

BIT #
7	Slave Ready**: 1=Slave data is valid, 0=Slave data is outdated
6	unused
5	unused
4	unused
3	unused
2	Checksum valid*: 1= valid, 0=invalid
1	unused
0	Data valid: 1=valid, 0=invalid (for pointer setting without write)

* This bist is set from I2C-Slave. The master can then test if last transfer was OK by reading this bit
** This bit should be set to "0" by master write. Until the Slave is ready, this bit will remain "0".

DataTypes:

Type	Number	Range
Direction/OnOff	0x01	BIT-0:  Direction BIT-1: On/Off
Speed	0x02	0 - 28
Frequency	0x03	1 = 20kHz 2 = 250 Hz 3 = 80 Hz
Mode	0x04	0 = fixed frequency 1 = variable frequency
Voltage	0x05	1 = 5.0V 2 = 5.5V .... 21 = 15.0V
Ramp UP time	0x10	0 = 0ms/step (OFF) 1 = 300ms/step 2 = 500ms/step 3 = 1s/step 4 = 2s/step 5 = 5s/step 6 = 10s/step
Ramp DOWN time	0x11	0 = 0ms/step (OFF) 1 = 300ms/step 2 = 500ms/step 3 = 1s/step 4 = 2s/step 5 = 5s/step 6 = 10s/step
Control Mode	0x12	0 = Switches & Poti 1 = I2C
Rangiergang	0x14	0 = OFF 1 = ON
Fast Readout*	0x20	BIT 0..4: Drivestep (0..27) Bit 5:       Direction Bit 6:       Output
Set new I2C Adress	0xFF	SET new I2C Adress

*Fast Readout is Read-only

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