NAME
asem - driver for UPS in ASEM PB1300
SYNOPSIS
asem -h
asem -a UPS_NAME [OPTIONS]
Note
|
This man page only documents the hardware-specific features of the asem driver. For information about the core driver, see nutupsdrv(8). |
SUPPORTED HARDWARE
The asem driver supports the UPS in ASEM PB1300 embedded PCs. Likely other I2C devices from the same manufacturer will work too, since this is a "custom" charger.
Seems that there are two versions of the charger. Older one is based on Max1667, newer one is a custom solution. Both are on I2C address 0x09. To be compatible with both versions, the driver just reads bit 15 of address 0x13 which yields online/on battery status. Battery monitor is a BQ2060 at address 0x0B.
EXTRA ARGUMENTS
The required parameter for this driver is the I2C bus name:
- port=dev-node
-
On the Asem PB1300, this should be
/dev/i2c-7
for the i801 SMBUS adapter.
This driver also supports the following optional settings:
- lb=num
-
Set the low battery threshold to num volts.
- hb=num
-
Set the high battery threshold to num volts.
INSTALLATION
This driver is specific to the Linux I2C API, and requires the lm_sensors libi2c-dev or its equivalent to compile.
Beware that the SystemIO memory used by the I2C controller is reserved
by ACPI. If only a native I2C driver (e.g. i2c_i801, as of 3.5.X Linux
kernels) is available, then you’ll need to relax the ACPI resources check.
For example, you can boot with the acpi_enforce_resources=lax
option.
KNOWN ISSUES AND BUGS
The driver shutdown function is not implemented, so other arrangements must be made to turn off the UPS.
AUTHOR
Giuseppe Corbelli <giuseppe.corbelli@copanitalia.com>
SEE ALSO
The core driver:
Internet resources:
-
PB1300 specifications: http://www.asem.it/en/products/industrial-automation/box-pcs/performance/pb1300/
-
BQ2060 datasheet: http://www.ti.com/lit/ds/symlink/bq2060.pdf
-
The NUT (Network UPS Tools) home page: https://www.networkupstools.org/