From b2f5ba408f8c7678dd45001e45e79c0c4463f41a Mon Sep 17 00:00:00 2001
From: bryan newbold <bnewbold@twinleaf.com>
Date: Wed, 5 Nov 2014 23:20:09 -0800
Subject: stm32: memory utilization notes

---
 electronics/stm32.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'electronics')

diff --git a/electronics/stm32.txt b/electronics/stm32.txt
index 6785840..4678b06 100644
--- a/electronics/stm32.txt
+++ b/electronics/stm32.txt
@@ -1,4 +1,13 @@
 
+Memory Utilization
+=====================
+
+'text' is what ends up in flash (only).
+'data' is initialized variables: need to be storad in flash, then end up in RAM.
+'bss' is uninitialized data: nothing in flash, but does consume RAM.
+
+The "-x --format=sysv" flags to arm-none-eabi-size can be helpful.
+
 Debugging
 ================
 
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