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foss-eda-tools / third_party / shuttle / sky130 / mpw-001 / slot-014 / e2aa7eb61c230658a761dd37773466cb9af44f01
commite2aa7eb61c230658a761dd37773466cb9af44f01[log] [tgz]
authorTim Edwards <tim@opencircuitdesign.com>Thu Oct 08 22:15:26 2020 -0400
committerTim Edwards <tim@opencircuitdesign.com>Thu Oct 08 22:15:26 2020 -0400
tree848cf662f9edb43b3eb617922b6df2def23af8b5
parentd31b9188d25bf020c724110730c7f5149cce45f0 [diff]
Removed temporary file.
1 file changed
tree: 848cf662f9edb43b3eb617922b6df2def23af8b5
  1. doc/
  2. verilog/
  3. README.md
README.md

CIIC Harness (Phase 1)

A template SoC for Google SKY130 free shuttles. It is still WIP. The current SoC architecture is given below.

Managment SoC

The managment SoC runs firmware taht can be used to:

  • Configure Mega Project I/O pads
  • Observe and control Mega Project signals (through on-chip logic analyzer probes)
  • Control the Mega Project power supply

The memory map of the management SoC is given below

Mega Project Area

This is the user space. It has limitted silicon area (???) as well as a fixed number of I/O pads (???). The repoo contains a sample mega project that contains a binary 32-bit up counter.

The firmware running on the Management Area SoC, configures the I/O pads used by the counter and uses the logic probes to observe/control the counter. Three firmware examples are provided:

  1. Configure the Mega Project I/O pads as o/p. Observe the counter value in the testbench: IO_Ports Test.
  2. Configure the Mega Project I/O pads as o/p. Use the Chip LA to load the counter and observe the o/p till it reaches 500: LA_Test1.
  3. Configure the Mega Project I/O pads as o/p. Use the Chip LA to control the clock source and reset signals and observe the counter value for five clock cylcles: LA_Test2.