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authorNicolas Schodet2015-05-11 11:44:13 +0200
committerNicolas Schodet2015-06-16 17:00:31 +0200
commitb877293fd8603270854876f8c7e6a6d46fb49c2c (patch)
tree580838207cb8a0b5d980a6b1d2cc5b3d5420fb90 /flashstub/stm32f1.c
parent21b3aba640e492b49140cb9c994f97a61ca51d29 (diff)
parent482070c91b0cc5a5f16c02a30e26e306685566bb (diff)
Merge remote-tracking branch 'github/master' into dev2
Conflicts: src/main.c
Diffstat (limited to 'flashstub/stm32f1.c')
-rw-r--r--flashstub/stm32f1.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/flashstub/stm32f1.c b/flashstub/stm32f1.c
new file mode 100644
index 0000000..f9ba0a1
--- /dev/null
+++ b/flashstub/stm32f1.c
@@ -0,0 +1,40 @@
+/*
+ * This file is part of the Black Magic Debug project.
+ *
+ * Copyright (C) 2015 Black Sphere Technologies Ltd.
+ * Written by Gareth McMullin <gareth@blacksphere.co.nz>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "libopencm3/stm32/flash.h"
+#include "stub.h"
+
+#define SR_ERROR_MASK 0x14
+
+void __attribute__((naked))
+stm32f1_flash_write_stub(uint16_t *dest, uint16_t *src, uint32_t size)
+{
+ for (int i; i < size; i += 2) {
+ FLASH_CR = FLASH_CR_PG;
+ *dest++ = *src++;
+ while (FLASH_SR & FLASH_SR_BSY)
+ ;
+ }
+
+ if (FLASH_SR & SR_ERROR_MASK)
+ stub_exit(1);
+
+ stub_exit(0);
+}
+