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-rw-r--r--flashstub/stm32f4.s44
1 files changed, 0 insertions, 44 deletions
diff --git a/flashstub/stm32f4.s b/flashstub/stm32f4.s
deleted file mode 100644
index fa3fda0..0000000
--- a/flashstub/stm32f4.s
+++ /dev/null
@@ -1,44 +0,0 @@
-.global _start
-
-_start:
- ldr r0, _flashbase
- ldr r1, _addr
- mov r2, pc
- add r2, #(_data - . - 2)
- ldr r3, _size
- ldr r5, _cr
-_next:
- cbz r3, _done
- @ Write PG command to FLASH_CR
- str r5, [r0, #0x10]
- @ Write data to flash (word)
- ldr r4, [r2]
- str r4, [r1]
-
-_wait: @ Wait for BSY bit to clear
- ldrh r4, [r0, #0x0E]
- mov r6, #1
- tst r4, r6
- bne _wait
-
- sub r3, #4
- add r1, #4
- add r2, #4
- b _next
-_done:
- bkpt
-
-@.align 4
-.org 0x28
-_cr:
- .word 0x00000201
-_flashbase:
- .word 0x40023C00
-_addr:
- .word 0x0800bf78
-_size:
- .word 8
-_data:
- .word 0xAAAAAAAA
- .word 0xBBBBBBBB
- .word 0xCCCCCCCC