[fake-stm32-blue-pill-board] STM32F103C8T6 Bootloader/Sketch problems

[BennehBoy]

Each to their own

[mrburnette]

Each to their own

True. But, the LOL should be more of a geek'ish icon. I prefer

[fredbox]

I've updated to the latest fpiSTM Github code from yesterday and modified boards.txt and ldscript.ld for the 32k parts. I don't have a Github account, so here are my changes if anyone else needs them:

3 lines changed in variants/BLUEPILL_F103C8/ldscript.ld:

Code: Select all

-**                64/128KByte FLASH, 20KByte RAM
+**                32/64/128KByte FLASH, 10/20KByte RAM
-_estack = 0x20005000;    /* end of RAM */
+_estack = 0x20000000 + LD_MAX_DATA_SIZE;    /* end of RAM */
-RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 20K
+RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = LD_MAX_DATA_SIZE

8 lines added to boards.txt:

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+# BLUEPILL_F103C6 board
+# Support: Serial2 (USART2 on PA3, PA2) and Serial3 (USART3 on PB11, PB10)
+GenF1.menu.pnum.BLUEPILL_F103C6=BluePill F103C6 (32K)
+GenF1.menu.pnum.BLUEPILL_F103C6.upload.maximum_size=32768
+GenF1.menu.pnum.BLUEPILL_F103C6.upload.maximum_data_size=10240
+GenF1.menu.pnum.BLUEPILL_F103C6.build.board=BLUEPILL_F103C8
+GenF1.menu.pnum.BLUEPILL_F103C6.build.product_line=STM32F103xB
+GenF1.menu.pnum.BLUEPILL_F103C6.build.variant=BLUEPILL_F103C8
+
# BLUEPILL_F103C8 board

Blinky:

Code: Select all

Sketch uses 9228 bytes (28%) of program storage space. Maximum is 32768 bytes.
Global variables use 552 bytes (5%) of dynamic memory, leaving 9688 bytes for local variables. Maximum is 10240 bytes.

[BennehBoy]

I've updated to the latest fpiSTM Github code from yesterday and modified boards.txt and ldscript.ld for the 32k parts. I don't have a Github account, so here are my changes if anyone else needs them:

3 lines changed in variants/BLUEPILL_F103C8/ldscript.ld:

Code: Select all

-**                64/128KByte FLASH, 20KByte RAM
+**                32/64/128KByte FLASH, 10/20KByte RAM
-_estack = 0x20005000;    /* end of RAM */
+_estack = 0x20000000 + LD_MAX_DATA_SIZE;    /* end of RAM */
-RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 20K
+RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = LD_MAX_DATA_SIZE

8 lines added to boards.txt:

Code: Select all

+# BLUEPILL_F103C6 board
+# Support: Serial2 (USART2 on PA3, PA2) and Serial3 (USART3 on PB11, PB10)
+GenF1.menu.pnum.BLUEPILL_F103C6=BluePill F103C6 (32K)
+GenF1.menu.pnum.BLUEPILL_F103C6.upload.maximum_size=32768
+GenF1.menu.pnum.BLUEPILL_F103C6.upload.maximum_data_size=10240
+GenF1.menu.pnum.BLUEPILL_F103C6.build.board=BLUEPILL_F103C8
+GenF1.menu.pnum.BLUEPILL_F103C6.build.product_line=STM32F103xB
+GenF1.menu.pnum.BLUEPILL_F103C6.build.variant=BLUEPILL_F103C8
+
# BLUEPILL_F103C8 board

Blinky:

Code: Select all

Sketch uses 9228 bytes (28%) of program storage space. Maximum is 32768 bytes.
Global variables use 552 bytes (5%) of dynamic memory, leaving 9688 bytes for local variables. Maximum is 10240 bytes.

I'll submit a PR

[BennehBoy]

https://github.com/stm32duino/Arduino_C ... 2/pull/420

[fredbox]

I changed 3 lines in ldscript.ld - I only see one line changed in the pull request. Thanks for doing this.

[BennehBoy]

Good point

[BennehBoy]

@fredbox, have you managed to test the PR?

[fpiSTM]

Guys,
I've made a fix to build properly for a C6.
Number of peripheral is not the same between STM32F103C6 and CB
C6 does not have USART3 and TIM4.
https://github.com/BennehBoy/Arduino_Core_STM32/pull/1

[BennehBoy]

Thanks Frederic, as per github I'll merge later (I'm at the office).