From affcf6ffc08313151541993ee543bfe390165e81 Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@keithp.com>
Date: Fri, 11 Nov 2016 23:38:03 -0800
Subject: [PATCH] altos/stmf0: Add a comment about the requirements for using
 ao_flash_stm

Need HSI clock and the flashing functions loaded in ram.

Signed-off-by: Keith Packard <keithp@keithp.com>
---
 src/stmf0/ao_flash_stm.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/stmf0/ao_flash_stm.c b/src/stmf0/ao_flash_stm.c
index ef2e2619..2d57eea7 100644
--- a/src/stmf0/ao_flash_stm.c
+++ b/src/stmf0/ao_flash_stm.c
@@ -19,6 +19,12 @@
 #include <ao.h>
 #include <ao_flash.h>
 
+/* Note that the HSI clock must be running for this code to work.
+ * Also, special care must be taken with the linker to ensure that the
+ * functions marked 'ramtext' land in ram and not rom. An example of that
+ * can be found in altos-loader.ld
+ */
+
 static uint8_t
 ao_flash_is_locked(void)
 {
-- 
2.30.2