stm32/boards/PYBD_SF2: Free up some space in internal flash.

dpgeorge · dpgeorge · commit 702f15ab9800 · 2026-03-22T00:04:52.000+11:00
With the recent addition of `machine.PWM` and `machine.CAN`, the internal
flash of PYBD_SF3 overflows by about 300 bytes.

This commit moves the inline assembler compiler functions from internal to
external QSPI flash.  That frees up about 3k internal flash, and shouldn't
affect performance.

Signed-off-by: Damien George &lt;damien@micropython.org&gt;
diff --git a/ports/stm32/boards/PYBD_SF2/f722_qspi.ld b/ports/stm32/boards/PYBD_SF2/f722_qspi.ld
@@ -50,6 +50,7 @@ SECTIONS
     .text_ext :
     {
         . = ALIGN(4);
+        *py/emit*(.text.emit_inline_thumb_* .rodata.emit_inline_thumb_*)
         *lib/btstack/*(.text* .rodata*)
         *lib/mbedtls/*(.text* .rodata*)
         *lib/mynewt-nimble/*(.text* .rodata*)

Original file line number	Diff line number	Diff line change
`@@ -50,6 +50,7 @@ SECTIONS`
`50`	`50`	`.text_ext :`
`51`	`51`	`{`
`52`	`52`	`. = ALIGN(4);`
	`53`	`+ py/emit(.text.emit_inline_thumb_* .rodata.emit_inline_thumb_*)`
`53`	`54`	`lib/btstack/(.text* .rodata*)`
`54`	`55`	`lib/mbedtls/(.text* .rodata*)`
`55`	`56`	`lib/mynewt-nimble/(.text* .rodata*)`