AO-SKY-FLASH(1) General Commands Manual AO-SKY-FLASH(1)
ao-sky-flash - flash GPS firmware program to a SkyTraq GPS chip
ao-sky-flash [-T tty-device] [--tty tty-device] [-D altos-device] [--device altos-device]
[--loader boot-loader] [--firmware gps-firmware] [--query] [--quiet] [--raw]
ao-sky-flash loads the specified GPS firmware file into the target GPS chip flash memory
using the specified boot loader.
-T tty-device | --tty tty-device
This selects which tty device the debugger uses to communicate with the target
-D AltOS-device | --device AltOS-device
Search for a connected device. This requires an argument of one of the following
Leaving out the product name will cause the tool to select a suitable product,
leaving out the serial number will cause the tool to match one of the available
This specifies the desired boot loader to use for reflashing the device. You should
use srec_115200.bin unless you have a good reason not to. This should be in S
This specifies the new GPS firmware image to load onto the target GPS chip. No
checking is done on this device at all; flash garbage and the GPS chip will proba‐
bly fail to boot.
Instead of loading new firmware, query the current version of firmware running on
the target device.
Normally, ao-spy-flash is quite chatty. This shuts it up, except for error mes‐
--raw The expected target for reflashing is an Altus Metrum product with the GPS chip
connected to the CPU on that board and not directly to the USB serial port. This
option says that the target GPS chip is directly connected, which changes how
things are initialized a bit.
ao-sky-flash loads the specified bootloader into device RAM and then uses that to load new
firmware to flash.