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- /***************************************************************************
- * Copyright (C) 2006 by Magnus Lundin *
- * lundin@mlu.mine.nu *
- * *
- * Copyright (C) 2008 by Spencer Oliver *
- * spen@spen-soft.co.uk *
- * *
- * 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. *
- ***************************************************************************/
-
- .text
- .syntax unified
- .cpu cortex-m3
- .thumb
- .thumb_func
- .align 2
-
- /*
- Call with :
- r0 = buffer address
- r1 = destination address
- r2 = bytecount (in) - endaddr (work)
-
- Used registers:
- r3 = pFLASH_CTRL_BASE
- r4 = FLASHWRITECMD
- r5 = #1
- r6 = bytes written
- r7 = temp reg
- */
-
- write:
- ldr r3,pFLASH_CTRL_BASE
- ldr r4,FLASHWRITECMD
- movs r5, 1
- movs r6, #0
- mainloop:
- str r1, [r3, #0]
- ldr r7, [r0, r6]
- str r7, [r3, #4]
- str r4, [r3, #8]
- waitloop:
- ldr r7, [r3, #8]
- tst r7, r5
- bne waitloop
- adds r1, r1, #4
- adds r6, r6, #4
- cmp r6, r2
- bne mainloop
- bkpt #0
-
- pFLASH_CTRL_BASE: .word 0x400FD000
- FLASHWRITECMD: .word 0xA4420001
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