427 SPI 7-segment display

427 : SPI 7-segment display

Design render

How it works

A small SPI slave device, receives 6-bit messages to display the lower 4-bits on the 7-segment display on the TinyTapeout Carrier board

How to test

  • SCLK, SS and MOSI is provided through the inputs clk, ui[0] and ui[1] respectively.
  • First two bits in 6-bit message serve as the command, and can be 01 or 10.
  • 01 causes the decimal point (uo[7]) to turn on and display the next 4 bits on the 7-segment display.
  • 10 behaves exactly the same, just switches the decimal point off.
  • In case of malformed instructions (11 or 00), the decimal point switches on, with the rest of the display off.

External hardware

  • Carrier board Seven Segment Display
  • Microcontroller to drive the SPI slave device

IO

#InputOutputBidirectional
0SSSegment A
1MOSISegment B
2Segment C
3Segment D
4Segment E
5Segment F
6Segment G
7SCLKSegment DP

Chip location

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