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authorMatthias Welwarsky <matthias.welwarsky@sysgo.com>2018-04-19 09:56:14 +0200
committerMatthias Welwarsky <matthias@welwarsky.de>2018-04-23 08:55:11 +0100
commit2eadf1e847f4880c698cae8dca857714e464e471 (patch)
tree4391c78b3edcdcf31ffc13d34e20e37c6b629ecb /tcl/board
parent3737dd69e73816d186ba418d7b833462a8041079 (diff)
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board: add configuration for stm32f103c8 "Blue Pill"
The "Blue Pill" is a popular development board with an STM32F103C8 micro controller. According to sources, it has a 128kB Flash on board even though the option bytes only report 64kB. This patch therefore also modifies target/stm32f1x.cfg to take an optional FLASH_SIZE variable into account which the board file sets to 0x20000. Change-Id: I8a78ccd2b5faf637c539ee3cf8136789ee15c95d Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com> Reviewed-on: http://openocd.zylin.com/4495 Tested-by: jenkins Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Diffstat (limited to 'tcl/board')
-rw-r--r--tcl/board/stm32f103c8_blue_pill.cfg14
1 files changed, 14 insertions, 0 deletions
diff --git a/tcl/board/stm32f103c8_blue_pill.cfg b/tcl/board/stm32f103c8_blue_pill.cfg
new file mode 100644
index 0000000..2487f35
--- /dev/null
+++ b/tcl/board/stm32f103c8_blue_pill.cfg
@@ -0,0 +1,14 @@
+# STM32F103C8 "Blue Pill"
+
+# NOTE:
+# There is a fair bit of confusion about whether the "Blue Pill" has 128kB or 64kB flash size.
+# The most likely cause is that there exist a -C8 and a -CB variant of the STM32F103, where
+# the C8 has 64kB, the CB has 128kB as per specification. "Blue Pill" boards are manufactured
+# by a lot of different vendors, some may actually use the CB variant but from a cursory look
+# it very hard to tell them apart ("C8" and "CB" look very similar). Nevertheless, people have
+# tried using the full 128kB of flash on the C8 and found it to be working. Hence this board file
+# overrides the internal size detection. Be aware though that you may be using you particular
+# board outside of its specification. If in doubt, comment the following line.
+set FLASH_SIZE 0x20000
+
+source [find target/stm32f1x.cfg]