Low level software support and optimization
Witekio applied its architecture and software expertise to the low-level software layer of the solution. This set of services includes embedded software optimization relating to USB, backlight brightness management and power consumption. For a successful walking and sports GPS device, optimal management of the power consumption is a mandatory requirement.
Witekio collaborated with Satmap’s technical team to optimise the Pulse-width modulation (PWM) frequency control of the display backlight. This allowed for a lower minimum level and a logarithmic brightness curve which replicates how the human eye perceives brightness, as well as greater granularity of the display’s backlight. In line with Satmap’s expectations, Witekio also profiled and optimised power states, the gating of unused SoC peripheral clocks and completed a power optimization review of all drivers.
These technical improvements provide a solid foundation for on-going platform optimization and represent a key success in the development of the Active 20, an every-day product that must be reliable in any type of environment.