RAM : 64KiB (6144b reserved by bootloader)
FLASH FIRMWARE WINDOWS
FLASH FIRMWARE DOWNLOAD
After that you should download the last firmware available:.
(powershell on windows, what you prefer on linux :) )
FLASH FIRMWARE UPDATE
Wait for the update process to complete before unplugging the device! When the update completes, the progress bar will resume it's idle animation, and the Ping device will resume data transmission.
Choose 'Automatic Update', and the baudrate that you would like to use to communicate with the device (115kbps or 9600bps, if you are not sure choose 115kbps).The Firmware Update menu allows you to update the programming on a Ping device.