diff options
| author | Clément Burin des Roziers <clement.burin-des-roziers@hikob.com> | 2011-09-16 15:55:54 +0200 |
|---|---|---|
| committer | Øyvind Harboe <oyvind.harboe@zylin.com> | 2011-10-03 18:42:39 +0200 |
| commit | da8ce5f2e193b8637202d56c69b22a158a12e32a (patch) | |
| tree | 3e22065eb62a8879656c8e332aa7842ef5db3c82 /contrib/loaders | |
| parent | a17adf0601f66617f2203c6d4db168a8e8c55055 (diff) | |
STM32L: Added flash driver and target
Added the flash driver for the STM32L family, which highly differ from the STM32F family.
Added the TCL target file for JTAG access.
Diffstat (limited to 'contrib/loaders')
| -rw-r--r-- | contrib/loaders/flash/stm32lx.S | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/contrib/loaders/flash/stm32lx.S b/contrib/loaders/flash/stm32lx.S new file mode 100644 index 00000000..6e8ccb08 --- /dev/null +++ b/contrib/loaders/flash/stm32lx.S @@ -0,0 +1,63 @@ +/*************************************************************************** + * Copyright (C) 2010 by Spencer Oliver * + * spen@spen-soft.co.uk * + * * + * Copyright (C) 2011 Øyvind Harboe * + * oyvind.harboe@zylin.com * + * * + * Copyright (C) 2011 Clement Burin des Roziers * + * clement.burin-des-roziers@hikob.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 stm32lx.S + .text + .syntax unified + .cpu cortex-m3 + .thumb + .thumb_func + .global write + +/* + r0 - destination address + r1 - source address + r2 - count +*/ + + // Set 0 to r3 + movs r3, #0 + // Go to compare + b.n test_done + +write_word: + // Load one word from address in r0, increment by 4 + ldr.w ip, [r1], #4 + // Store the word to address in r1, increment by 4 + str.w ip, [r0], #4 + // Increment r3 + adds r3, #1 + +test_done: + // Compare r3 and r2 + cmp r3, r2 + // Loop if not zero + bcc.n write_word + + // Set breakpoint to exit + bkpt #0x00 + |