Hello,
I'm new BL2600 user and I cannot find information where to connect I2C
lines. I tried PortF by changing i2c.lib a little and I was able to use pins 20
and 21 but voltage level varies only 4.7 V to 2.5 V and instead of 0-5 V . I
tried several different pullup resistors but still the source voltage
won't go to zero.
Are there any information how ports are mapped to BL2600 pins ? I can find
RCM3000 port diagrams but there are no such information for BL2600. For example
what is the port connected to pins DIN24-DIN32 and can I use those pins to I2c
?
Any help would be greatly appreciated.
Posted by: a...@gmail.com
BL2600 I2C pins information needed.
Started by ●June 19, 2014
Reply by ●June 19, 20142014-06-19
On 6/19/2014 12:42 PM, a...@gmail.com [rabbit-semi] wrote:
> Hello,
> I'm new BL2600 user and I cannot find information where to connect I2C lines. I tried PortF by changing i2c.lib a little and I was able to use pins 20 and 21 but voltage level varies only 4.7 V to 2.5 V and instead of 0-5 V . I tried several different pullup resistors but still the source voltage won't go to zero.
> Are there any information how ports are mapped to BL2600 pins ? I can find RCM3000 port diagrams but there are no such information for BL2600. For example what is the port connected to pins DIN24-DIN32 and can I use those pins to I2c ?
> Any help would be greatly appreciated.
>
Those are input pins only as they have 27k series resistors on them.
Check the schematic for pins you might be able to use:
http://ftp1.digi.com/support/documentation/0900195_e.pdf
A quick look and I don't see any that are I/O.
--
------
Scott G. Henion, Consultant
Web site: http://SHDesigns.org
------
Posted by: Scott Henion
> Hello,
> I'm new BL2600 user and I cannot find information where to connect I2C lines. I tried PortF by changing i2c.lib a little and I was able to use pins 20 and 21 but voltage level varies only 4.7 V to 2.5 V and instead of 0-5 V . I tried several different pullup resistors but still the source voltage won't go to zero.
> Are there any information how ports are mapped to BL2600 pins ? I can find RCM3000 port diagrams but there are no such information for BL2600. For example what is the port connected to pins DIN24-DIN32 and can I use those pins to I2c ?
> Any help would be greatly appreciated.
>
Those are input pins only as they have 27k series resistors on them.
Check the schematic for pins you might be able to use:
http://ftp1.digi.com/support/documentation/0900195_e.pdf
A quick look and I don't see any that are I/O.
--
------
Scott G. Henion, Consultant
Web site: http://SHDesigns.org
------
Posted by: Scott Henion
