+++ /dev/null
-/***************************************************************************
- * Copyright (C) 2010 by Spencer Oliver *
- * spen@spen-soft.co.uk *
- * *
- * Copyright (C) 2011 Øyvind Harboe *
- * oyvind.harboe@zylin.com *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************/
-
-
-// Build : arm-eabi-gcc -c stm32f2xxx.S
- .text
- .syntax unified
- .cpu cortex-m3
- .thumb
- .thumb_func
- .global write
-
-/*
- r0 - source address
- r1 - target address
- r2 - count (halfword-16bit)
- r3 - result out
- r4 - flash base
-*/
-
-#define STM32_FLASH_CR_OFFSET 0x10 /* offset of CR register in FLASH struct */
-#define STM32_FLASH_SR_OFFSET 0x0c /* offset of CR register in FLASH struct */
-
-write:
-
-write_half_word:
- ldr r3, STM32_PROG16
- str r3, [r4, #STM32_FLASH_CR_OFFSET]
- ldrh r3, [r0], #0x02 /* read one half-word from src, increment ptr */
- strh r3, [r1], #0x02 /* write one half-word from src, increment ptr */
-busy:
- ldr r3, [r4, #STM32_FLASH_SR_OFFSET]
- tst r3, #0x10000 /* BSY (bit0) == 1 => operation in progress */
- beq busy /* wait more... */
- tst r3, #0xf0 /* PGSERR | PGPERR | PGAERR | WRPERR */
- bne exit /* fail... */
- subs r2, r2, #0x01 /* decrement counter */
- bne write_half_word /* write next half-word if anything left */
-exit:
- bkpt #0x00
-
-
-STM32_PROG16: .word 0x101 /* PG | PSIZE_16*/