Bridgetek enhances EVE for higher resolution displays

The advance of human machine interface (HMI) has led to Bridgetek announcing enhancements to its Embedded Video Engine (EVE) platform. The BT817 and BT818 are the company’s fourth generation of EVE products.

The graphic controller ICs are intended for use in retail, digital signage and office management systems, as well as public information units, vending machines, domestic appliances, store/mall direction finding systems, training/educational equipment and interactive exhibits. They are suitable for use with 1Mpixel displays and support 1920×480, 1440×540, 1280×800, 1024×600, 800×600, 800×480, 480×272 resolutions. Each has a 1Mbyte embedded graphics RAM, which can be supplemented by attaching an external NOR flash memory through the queued serial peripheral interface (QSPI). The object-oriented graphics technology does not need a frame buffer to be incorporated into the HMI system, advises Bridgetek.

Leveraging adaptive scalable texture compression (ASTC) reduces the system’s graphics processing overhead to make better use of the available data storage capacity and access larger items.

The BT818 is optimised for use with four-wire resistive touchscreens, and the BT817 has been designed to accompany capacitive touchscreens (with multi-touch functionality allowing detection of up to five touch points). Touch point movement can be tracked and up to 255 touch tags can be assigned. There is the capability to adjust both the horizontal and vertical sync timing to accommodate different display units. There is also a power mode control to optimise energy consumption.

Other features include video playback, enhanced sketch processing and a built-in sound synthesiser.

The Bridgetek BT817 and BT818 are supplied in compact 9.0 x 9.0mm 64-pin VQFN packages. The extended -40 to +85°C operational temperature range ensures that both ICs are suitable for industrial environments.

Founded in 2016, Bridgetek supplies ICs and board level products. The company’s Embedded Video Engine (EVE) graphic controller ICs integrate display, audio and touch functionality in a single chip to reduce the time period and bill of materials costs associated with developing next-generation HMI systems. The company also manufactures differentiated, speed-optimised microcontrollers with augmented connectivity features.

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