getfit

A utility to get FIT files from an antfs device. By default new files are downloaded to current directory.

install

npm install [-g] getfit

download

Download new files, if any

node getfit

Download file at index 10

node getfit -d 10

Download file at index 10-12

node getfit -d 10-12

ls

List directory on device

node getfit -l
totals 4290
--w-rw--- 1 getfit antfs     1900544 Dec 31  1989 Manufacturer-1
----rw--- 1 getfit antfs      262144 Dec 31  1989 Manufacturer-2
-r--rw--- 1 getfit antfs         574 Dec 31  1989 DeviceCapabilities-3.fit
-rw-rw--- 1 getfit antfs         680 Dec 31  1989 Settings-4.fit
-rw-rw--- 1 getfit antfs        1159 Dec 31  1989 SportSettings-5.fit
-rw-rw--- 1 getfit antfs         317 Dec 31  1989 SportSettings-6.fit
-rw-rw--- 1 getfit antfs        1159 Dec 31  1989 SportSettings-7.fit
-rw-rw--- 1 getfit antfs         317 Dec 31  1989 SportSettings-8.fit
-rw-rw--- 1 getfit antfs        1197 Dec 31  1989 SportSettings-9.fit
-r--rw--- 1 getfit antfs       26135 Apr 21 18:23 Activity-10.fit
-r--rw--- 1 getfit antfs        1180 Apr 23 10:24 Activity-11.fit
-rw-rw--- 1 getfit antfs          72 Dec 31  1989 Schedule-12.fit
-rw-rw--- 1 getfit antfs         627 Dec 31  1989 Locations-13.fit
-r--rw--- 1 getfit antfs          72 Dec 31  1989 Weight-14.fit
-r--rw--- 1 getfit antfs         168 Dec 31  1989 Totals-15.fit
-rw-rw--- 1 getfit antfs          72 Dec 31  1989 Goals-16.fit

erase

Erase file at index 10

node getfit -e 10

ignore client busy state optimization

After each burst from client the state is busy and the host must wait at least 125 ms (if 8Hz channel period) for a new beacon.This optimization will ignore the busy state and assume that the client is ready for a new request (not recommended, but faster).

node getfit -b

authorization

When a new device is discovered it will pair with it if necessary and save the key in a authorication file authorization-{client serial number}.key in current working directory.

skip new files

node getfit -s

usbport

By default the first available ant device found during scanning is used. All channels are reset/terminated on the device.

Use usb port 1

node getfit -p 1

device number

By default any device is searched for, i.e 0 is used for device number. Search for device 1

node getfit -n 1

list ant devices

node getfit -u
0 Bus 1 Number 7: ID fcf:1008
1 Bus 4 Number 2: ID fcf:1009

logging

Show detailed logging of protocol negotiation as well as usb traffic

node getfit -v

libusb debug

Specify libusb log level 0 - 4

node getfit -L {loglevel}

troubleshoot

linux

fedora

Installs libusb dependencies

npm run fedora

ubuntu

Installs libusb dependencies

npm run ubuntu

udev access

Sets up the permission for accessing usb sticks from userland

npm run udev

windows

LIBUSB_ERROR_ACCESS ([winusbx_claim_interface] could not access interface 0:)

libusb0 (v1.2.40.201) default driver is not compatible

Zadig utility (http://zadig.akeo.ie) can be used to change drivers to

• libusb-win32 (v1.2.6.0)
• WinUSB (v6.1.7600.16385)

testing/debugging

Transfer in bad RF conditions

terminal 1 - filtered

node getfit -l -v | tee dump.log | egrep 'TX_FAILED|RX_FAILED|RX_FAIL|burst response timeout'

terminal 2

tail -f dump.log

licence

MIT