Video Pattern Generator IP Core
SingMai Electronics has introduced the PT6 FPGA IP core, an SD video pattern generator.
PT6 generates five 10-bit, line based, video patterns which allow comprehensive testing of video transmission paths and video processing modules. PT6 just requires a 27MHz clock whilst the output is a compatible BT656 video stream for both 525 and 625 line formats. The pattern memories may also be written to by the user for creating custom patterns and also multiplexed into a single frame. The core has been designed to utliise as little resource as possible as will fit in even the smallest FPGAs.
The pre-programmed patterns are:
• 75% colour bars (for measuring chrominance and luminance levels and vectors)
• 2T, 20T pulse and bar (for measuring pulse response - K- factor - and chroma/luma delay)
• Modulated 5-step staircase (for measuring linearity and differential gain and phase)
• Multiburst (for measuring frequency response)
• Modulated ramp (for measuring signal to noise ratio).
Control and memory are written to and read from using a conventional 8 bit wide microprocessor interface.