| # Microwatt Tests |
| |
| To run these you need icarus verilog, and a ppc64le toolchain. On Fedora |
| these are available as packages: |
| |
| ``` |
| sudo dnf install iverilog gcc-powerpc64le-linux-gnu |
| ``` |
| |
| And on Ubuntu: |
| |
| ``` |
| sudo apt install iverilog gcc-powerpc64le-linux-gnu |
| ``` |
| |
| The test cases need a path to the PDK, eg: |
| |
| ``` |
| make PDK_PATH=/home/anton/pdk/sky130A |
| ``` |
| |
| ## minimal |
| This is probably where you should start. This is a minimal test that verifies |
| that Microwatt is running. The SPI flash controller is lightly tested because |
| Microwatt uses it to fetch instructions for the test case. The GPIO macro |
| is also lightly tested because Microwatt uses that to signal back to the |
| management engine that it is alive. |
| |
| ## jtag |
| This reads the IDCODE register out of the Microwatt JTAG TAP interface. |
| |
| ## uart |
| A simple UART test where we send a character to Microwatt and it echoes it back. |
| |
| ## spi_flash |
| Before starting flash is initialized with a hash of the offset. The test case |
| then does reads at various offsets and checks if the values returned are |
| correct. |
| |
| ## memory_test |
| A simple memory tester. Writes hashes of the offset of memory into memory, |
| then reads them back. |
