From 532954847ae9c4643dc068786ea78957a6d9bb36 Mon Sep 17 00:00:00 2001
From: Keith Rothman <537074+litghost@users.noreply.github.com>
Date: Thu, 18 Feb 2021 13:01:42 -0800
Subject: Update README's with latest instructions and features.

Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
---
 fpga_interchange/examples/create_bba/README.md | 40 ++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 fpga_interchange/examples/create_bba/README.md

(limited to 'fpga_interchange/examples/create_bba/README.md')

diff --git a/fpga_interchange/examples/create_bba/README.md b/fpga_interchange/examples/create_bba/README.md
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+++ b/fpga_interchange/examples/create_bba/README.md
@@ -0,0 +1,40 @@
+## Makefile-driven BBA creation
+
+This Makefile will generate a Xilinx A35 chipdb if java, capnproto and
+capnproto-java are installed.
+
+### Installing dependencies
+
+Install java and javac if not already installed:
+```
+# Or equivalent for your local system.
+sudo apt-get install openjdk-10-jdk
+```
+
+Install capnproto if not already installed:
+```
+# Or equivalent for your local system.
+sudo apt-get install capnproto libcapnp-dev
+```
+
+Install capnproto-java if not already installed:
+```
+git clone https://github.com/capnproto/capnproto-java.git
+cd capnproto-java
+make
+sudo make install
+```
+
+### Instructions
+
+Once dependencies are installed, just run "make".  This should download
+remaining dependencies and build the chipdb and build nextpnr if not built.
+
+#### Re-building the chipdb
+
+```
+# Remove the text BBA
+rm build/nextpnr/fpga_interchange/chipdb.bba
+# Build the BBA
+make
+```
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