From: Keith Packard <keithp@keithp.com>
Date: Sat, 12 Nov 2016 07:38:03 +0000 (-0800)
Subject: altos/stmf0: Add a comment about the requirements for using ao_flash_stm
X-Git-Tag: 1.7~169
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=affcf6ffc08313151541993ee543bfe390165e81

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>
---

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)
 {