(no commit message)

diff --git a/HDL_workflow/ls2.mdwn b/HDL_workflow/ls2.mdwn
index edcd3eb9b1cc85460b055c915e745bae11e110de..34837d2717f59a95ff98ea33467a4f2d129da510 100644 (file)
--- a/HDL_workflow/ls2.mdwn
+++ b/HDL_workflow/ls2.mdwn
@@ -57,6 +57,11 @@ If needed modify sources to produce a fixed file bitstream and
     minicom -D /dev/ttyUSB1
     xc3sprog -c nexys4 top.bit
 
+If there are multiple Arty-A7-100t boards connected you need to know
+the serial number (lsusb | grep Serial)
+
+    xc3sprog -c nexys4 -s {insert_full_serial_number} top.bit
+
 # Using ls2 with microwatt
 
 This is doable but tricky.  An older version is required at present.