From 3d29fb79fe02720e876f505f2af6d5f35c3f93f9 Mon Sep 17 00:00:00 2001
From: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
Date: Thu, 4 Feb 2021 07:57:08 +0100
Subject: [PATCH] README: add note for default behavior (memory/flash) and
 offset option

---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.md b/README.md
index 9ef8b70..f14acd1 100644
--- a/README.md
+++ b/README.md
@@ -165,6 +165,9 @@ To have complete help
 
 ### Generic usage
 
+- when a bitstream file is compatible with both memory load and FLASH write, the default behavior is to load bitstream in memory
+- with FPGA using an external SPI flash (*xilinx*, *lattice ECP5/nexus/ice40*, *anlogic*, *efinix*) option  **-o** allows one to write raw binary file to an arbitrary adress in FLASH.
+
 #### display FPGA
 
 With board name: