3D-printing/klipper
1
0
Fork 0
mirror of https://github.com/Klipper3d/klipper.git synced 2025-08-06 21:44:13 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions 3

tmc2208: Decode register fields in DUMP_TMC (#1156)

Browse source 
Report values of TMC2208 register fields in DUMP_TMC command to help in
tuning and diagnostics.

This also adds functions to refer to register fields by name for TMC drivers
and register mappings for TMC2208.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Signed-off-by: Dmitry Frolov <dmitry.frolov@gmail.com>
This commit is contained in:
lorf 2019-02-03 07:46:27 +07:00 • committed by KevinOConnor
parent 3b6ddb08a1
commit 54683c9535
2 changed files with 189 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

36
klippy/extras/tmc2130.py
View file

@ -24,6 +24,40 @@ ReadRegisters = [
"CHOPCONF", "DRV_STATUS", "PWM_SCALE", "LOST_STEPS",
]
Fields = {}
######################################################################
# Field helpers
######################################################################
# Return the position of the first bit set in a mask
def ffs(mask):
return (mask & -mask).bit_length() - 1
# Provide a string description of a register
def pretty_format(all_fields, reg_name, value):
fields = [ " %s=%d" % (field_name, (value & mask) >> ffs(mask))
for field_name, mask in sorted(all_fields.get(
reg_name, {}).items(), key = lambda f: f[1])
if value & mask ]
return "%-15s %08x%s" % (reg_name + ":", value, "".join(fields))
# Returns value of the register field
def get_field(all_fields, reg_name, field_name, reg_value):
mask = all_fields.get(reg_name, {})[field_name]
return (reg_value & mask) >> ffs(mask)
# Returns register value with field bits filled with supplied field value
def set_field(all_fields, reg_name, field_name, reg_value, field_value):
mask = all_fields.get(reg_name, {})[field_name]
return (reg_value & ~mask) | ((field_value << ffs(mask)) & mask)
######################################################################
# TMC2130 printer object
######################################################################
class TMC2130:
def __init__(self, config):
self.printer = config.get_printer()
@ -126,7 +160,7 @@ class TMC2130:
logging.info("DUMP_TMC %s", self.name)
for reg_name in ReadRegisters:
val = self.get_register(reg_name)
msg = "%-15s %08x" % (reg_name + ":", val)
msg = pretty_format(Fields, reg_name, val)
logging.info(msg)
gcode.respond_info(msg)