Saving parameters after shut down

Hi
I have problem with paramsaver syntax. "safe tool change" . I would like the syntax and links to hal components. I need at the toolchange, write new tool to paramsavers. I would like to look into yours hal and ini.
I don't know how to use M68, with motion.analog-out-xx.

My hal:
# _DO NOT_ include your HAL commands here.
# Put custom HAL commands in custom_postgui.hal
# The commands in this file are run after the GUI loads

# **** Setup of spindle speed display using pyvcp -START ****

net spindle-vel-cmd-rpm-abs => pyvcp.spindle-speed

#prisavky s materialom
net appc halui.mdi-command-10 pyvcp.appc
net ap halui.mdi-command-12 pyvcp.ap
net am halui.mdi-command-13 pyvcp.am
net nul halui.mdi-command-14 pyvcp.nul


########################## FILE SAVER ###################################
#
loadusr -W paramsaver f=3 s=1 b=0 filename=memory_pins onstart=1 onexit=1

net material_in pyvcp.mat => paramsaver.invalueF-000
net material_out pyvcp.spinbox.0.param_pin <= paramsaver.outvalueF-000

net podlozka_in pyvcp.pris => paramsaver.invalueF-001
net podlozka_out pyvcp.spinbox.1.param_pin <= paramsaver.outvalueF-001

############################### Memory tool #########################################

net tool_number_in iocontrol.0.tool-number => paramsaver.invalueS-000
net tool_number_out ?????????????????? <= paramsaver.outvalueS-000

net writetrigger motion.digital-out-03 paramsaver.writetrigger
net readtrigger motion.digital-out-04 paramsaver.readtrigger

########################## FILE SAVER END ###################################

.......

Please help me. Some example, link, reference, anythink.

I have problem with paramsaver, his syntax. Not worked.
But now i have progress with the paramsaver.
This works:
In custom hal:
loadusr -W paramsaver f=3 s=0 b=0 filename=memory_pins onstart=1 onexit=0 (onexit=0 it has to be)

net tool_number_in motion.analog-out-04 => paramsaver.invalueF-002
net tool_number_out <= paramsaver.outvalueF-002

net writetrigger motion.digital-out-03 paramsaver.writetrigger
net readtrigger motion.digital-out-04 paramsaver.readtrigger


in INI:
MDI_COMMAND=M120 M61 Q[#<_hal[tool_number_out]>]
REMAP=G88.1 modalgroup=1 ngc=g881 (The program that is called on the last calibrated axis)

The program:
o<g881> sub
M61 q#<_hal[tool_number_out]>
o<g881> endsub [1]
m2

Thanks.

Hi
Problem with "paramsaver" in version 2.8.0

For version 2.7.14 in the terminal compile command "halcompile --install --userspace /home/hcnc/linuxcnc/paramsaver.c" looks like this:

Extract from the terminal:
Works OK on my config machine,
but for version 2.8.0 in the terminal compile command "halcompile --install --userspace /home/hcnc/linuxcnc/paramsaver.c" looks like this:
Extract from the terminal:this no works. The paramsaver component was not created.

From the terminal LinuxCNC Errors:
I have already installed "build-essential" and "linuxcnc-dev"
Where is the problem? Please help.

BOOM!!!!! I'm stupid. I didn't notice the difference written --install and --compile. Thanks.
It's already working.

Hi, I have a problem again. After a clean installation 2.8.1 i can't install paramsaver correctly.

From terminal>Paramsaver is not in the machine configuration.

I did the installation:
BUSTER
sudo apt-get install build-essential
linuxcnc-uspace-dev
linuxcnc-uspace-dbgsym

EDIT: solved