| DS2436(3) | One-Wire File System | DS2436(3) |
NAME
DS2436 - Battery ID/Monitor Chip
SYNOPSIS
Temperature Voltage and Memory.
1B [.]XXXXXXXXXXXX[XX][/[ pages/page.[0-4|ALL] | temperature | volts | counter/cycles | counter/reset | counter/increment |
See the file man3/standard_mini.3so.
]]
FAMILY CODE
1B
SPECIAL PROPERTIES
pages/page.0 ... pages/page.4 pages/page.ALL
read-write, binary
Memory is split into 5 pages of 32 bytes each. Only the first 3 pages are
really available, and some of that appears to be reserved. See the datasheet
for details.
pages/page.0 is locked and unlocked transparently for every write.
ALL is an aggregate of the pages. Each page is accessed sequentially.
temperature
read-only, floating point
Temperature read by the chip at high resolution (~13 bits). Units are
selected from the invoking command line. See owfs(1) or
owhttpd(1) for choices. Default is Celsius. Conversion takes ~20
msec.
volts
read-only, floating point
Voltage read (~10 bits) at the chip's supply voltage Vdd. Range 2.4V to
10V.
counter/
A resettable non-volatile counter intended for counting battery discharge cycles.
counter/cycles
read-only, unsigned integer
Cycle counter value. Stored at memory location 0x82.
counter/increment
write-only, yes/no
Any non-zero (true) value will increment counter/cycles by one.
counter/reset
write-only, yes/no
Any non-zero (true) value will reset counter/cycles to zero.
STANDARD PROPERTIES
See the file man3/standard.3so.
ALARMS
None.
DESCRIPTION
See the file man3/description.3so.
DS2436
The DS2436 (3) is a simpler form of the DS2438 battery chip. It has no counter, and only one voltage sensor.
ADDRESSING
See the file man3/addressing.3so.
DATASHEET
http://pdfserv.maxim-ic.com/en/ds/DS2436.pdf
SEE ALSO
See the file man3/seealso.3so.
AVAILABILITY
http://www.owfs.org
AUTHOR
Paul Alfille (paul.alfille@gmail.com)
| 2003 | OWFS Manpage |