harness phase1 initial commit
diff --git a/README.md b/README.md index f8317e7..1232c21 100644 --- a/README.md +++ b/README.md
@@ -1 +1,29 @@ -# caravel \ No newline at end of file +# CIIC Harness (Phase 1) + +A template SoC for Google SKY130 free shuttles. It is still WIP. The current SoC architecture is given below. + +<p align=”center”> +<img src="/doc/ciic_harness.png" width="70%" height="70%"> +</p> + +## 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 <br> +<img src="/doc/mgmt_soc_memory_map.png" width="40%" height="40%"> + +## 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](/verilog/rtl/mprj_counter.v) that contains a binary 32-bit up counter. </br> + +<p align=”center”> +<img src="/doc/counter_32.png" width="40%" height="40%"> +</p> + +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](verilog/dv/harness/mprj_counter/io_ports). +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](verilog/dv/harness/mprj_counter/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](verilog/dv/harness/mprj_counter/la_test2).