From: Bruno Dal Bo <bruno.dalbo@hp.com>
Date: Wed, 3 Feb 2016 21:10:54 +0000 (-0800)
Subject: clean SR flags before programming CR
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=c78e47f0c02f8debd0928f4e912888758dc532c0;p=fw%2Fstlink

clean SR flags before programming CR
---

diff --git a/src/stlink-common.c b/src/stlink-common.c
index f2888d1..04e6167 100644
--- a/src/stlink-common.c
+++ b/src/stlink-common.c
@@ -432,6 +432,7 @@ static inline void write_flash_cr_snb(stlink_t *sl, uint32_t n) {
 }
 
 static inline void write_flash_cr_bker_pnb(stlink_t *sl, uint32_t n) {
+    stlink_write_debug32(sl, STM32L4_FLASH_SR, 0xFFFFFFFF & ~(1<<STM32L4_FLASH_SR_BSY));
     uint32_t x = read_flash_cr(sl);
     x &=~ STM32L4_FLASH_CR_OPBITS;
     x &=~ STM32L4_FLASH_CR_PAGEMASK;