Hi, I have make code to read i2c eeprom both to pic and pinguino in past days but i can't make a program to read eeprom to duinomite.
Does anyone has an example.
Thank you.
Hi, I'm also experimenting with I2C and EEPROM 24CXX.
Set of conditions is so : Duinomite + StickOS BASIC (cpustick.com).
Pin D12 for SDA, Pin D11 for SCL,pullup resistors 6.8 k to 5 V.
Results are expected in 2 weeks (+ or -).
I chose this because it is written in DMBasic
Language Manual Ver 3.2 Appendix B,
I2C Communications ,Maximite family only (not for Duinomite ??).
Hi venatici, Hello everyone who is interested in I2C bus !
Then came the first snow and it will be a chance to experience DUINO at low temperatures
in our labs ! :D
We tested the DUINOMITE and I2C bus with 24CXX EEPROM.
The I2C bus has been configured in such a way -
SCL line from pin 5 UEXT, SDA line from pin 6 UEXT DUINOMITE .
It was discovered, under these conditions, we need to make additional HARDWARE.
1. Organize additional source 3. 3 V. Not from pin 3.3 V on the DUINOMITE board.
In the first steps of the test , additional source was 5 V from the DUINOMITE board.
In this case, I2C bus works on a grand scale of 5 volts !
We made the voltage divider 200 om/100 om for 5 V from DUINOMITE board.
2. 24CXX EEPROM pins 1,2,3,4,7 - GND DUINOMITE board, pin 8 - additional source 3. 3 V, pin 5 - SDA,
pin 6 SCL - I2C bus.
3. Pin D12 from DUINOMITE board via pullup resistor 6.8 K to additional source 3. 3 V
Pin D11 from DUINOMITE board via pullup resistor 6.8 K to additional source 3. 3 V
24CXX EEPROM chip was programmed by PonyProg2000 (www.LancOS.com)
in such a way to see each page ( 8 ) separately.
To be continued ...
Hi all, we continue to explore the I2C of the platform DUINOMITE.
For these tests was chosen StickOS BASIC Software.
Its light was seen in the understanding and application. There is support on the site www.cpustick.com
Code example
10 dim x2 as pin an2 for digital output
11 dim x3 as pin an3 for digital output
12 dim x4 as pin an4 for digital output
13 dim x6 as pin an6 for digital output
22 x2 = 0
23 x3 = 0
24 x4 = 0
26 x6 = 0
30 dim i
50 dim data[2] as short
70 i2c start 0x53
75 for i = 1 to 64 step 1
80 i2c read data
90 print data
115 next
120 i2c stop
130 end
save I2C_test
run
Result of the program - something like this -
13107 13107
13107 13107
13107 13107
13107 13107
..................
13107 13107
13107 13107
13107 13107
13107 13107
13107 is the decimal form number 3333 HEX form which is recorded in each cell of page 4 at 0h53 adress, total 256.
Start page 0х50, final page 0x57.
Acknowledgements for the support of Mr. Rich Testardi support@cpustick.com
Acknowledgements to my wife for understanding.
It will be interesting to see similar results for DM - MM Basic and discussion.
P.S.
For DUINOMITE-Mini + DM. BASIC v.4.0
code example such a:
CLS
DIM DATA (256)
DIM I
I2CEN 100, 100
FOR I - 1 TO 256
I2CRCV &H52, 0,1,DATA
PRINT "" DATA ,;
NEXT
I2CDIS
DM. BASIC v.4.0 has 7 commands I2C,
1 System Variables -mm.I2C.
This allows fine-tuning of I2C bus.