Merge pull request micropython#5061 from evildave666/blackpill-remove-nvm

remove unused nvm reserved space from stm32f411ce_blackpill_with_flash

Author: tannewt

ports/stm/boards/STM32F411_nofs.ld

@@ -0,0 +1,26 @@
+/*
+    GNU linker script for STM32F411 without nvm and an external flash chip.
+    No space is reserved for a filesystem.
+*/
+
+/* Specify the memory areas */
+MEMORY
+{
+    FLASH (rx)          : ORIGIN = 0x08000000, LENGTH = 512K /* entire flash */
+    FLASH_ISR (rx)      : ORIGIN = 0x08000000, LENGTH = 16K /* sector 0 */
+    FLASH_FIRMWARE (rx) : ORIGIN = 0x08004000, LENGTH = 496K /* sectors 1,2,3 are 16k, sector 4 is 64K, sectors 5,6,7 are 128K */
+    RAM (xrw)           : ORIGIN = 0x20000000, LENGTH = 128K
+}
+
+/* produce a link error if there is not this amount of RAM for these sections */
+_minimum_stack_size = 24K;
+_minimum_heap_size = 16K;
+
+/* Define the top end of the stack.  The stack is full descending so begins just
+   above last byte of RAM.  Note that EABI requires the stack to be 8-byte
+   aligned for a call. */
+_estack = ORIGIN(RAM) + LENGTH(RAM);
+
+/* RAM extents for the garbage collector */
+_ram_start = ORIGIN(RAM);
+_ram_end = ORIGIN(RAM) + LENGTH(RAM);

ports/stm/boards/stm32f411ce_blackpill_with_flash/mpconfigboard.mk

@@ -15,11 +15,4 @@ MCU_VARIANT = STM32F411xE
 MCU_PACKAGE = UFQFPN48
 
 LD_COMMON = boards/common_default.ld
-LD_FILE = boards/STM32F411_nvm_nofs.ld
-
-# Too big for the flash
-CIRCUITPY_AUDIOCORE = 0
-CIRCUITPY_AUDIOPWMIO = 0
-CIRCUITPY_SYNTHIO = 0
-CIRCUITPY_BITMAPTOOLS = 0
-CIRCUITPY_VECTORIO = 0
+LD_FILE = boards/STM32F411_nofs.ld