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authorbnewbold <bnewbold@robocracy.org>2015-01-06 20:01:25 +0000
committerbnewbold <bnewbold@robocracy.org>2015-01-06 20:01:25 +0000
commit93a7471798b48cd4442d7b28ddd8ffce1587c4c3 (patch)
tree93a505cff9b7c7d8e1f18ff8b1cfcdc3164223de
parent60ad89be9d32e154182ff8517dbc2fdea7021696 (diff)
parent97f6da592df6b44732be885dadfdd1e5a1e48872 (diff)
downloadnovena-guide-93a7471798b48cd4442d7b28ddd8ffce1587c4c3.tar.gz
novena-guide-93a7471798b48cd4442d7b28ddd8ffce1587c4c3.zip
Merge pull request #1 from al42and/fpga_typo
Fixes and additions to GPBB FPGA Quickstart
-rw-r--r--fpga-hacking.rst12
1 files changed, 11 insertions, 1 deletions
diff --git a/fpga-hacking.rst b/fpga-hacking.rst
index 467277d..edebb30 100644
--- a/fpga-hacking.rst
+++ b/fpga-hacking.rst
@@ -17,6 +17,16 @@ Run these commands from a Novena with the GPBB attached::
git clone https://github.com/bunnie/novena-gpbb-example
cd novena-gpbb-example
make -j4
- sudo ./configure.sh novena_fpga
+ sudo ./configure.sh novena_fpga.bit
sudo ./novena-gpbb -v
+Simple test --- toggle four on-board LEDs, connected to I/O port B, pins 0--3::
+
+ sudo ./novena-gpbb -oeb 1 # set port B to drive
+ for BIT in 0 1 2 3; do
+ sudo ./novena-gpbb -p_set b $BIT # Set pin
+ sleep 1
+ done
+ sudo ./novena-gpbb -p b 00 # Write 0x00, i.e. reset all pins
+ sudo ./novena-gpbb -oeb 0 # return port B to tristate mode
+