1 /*
2 * Copyright (C) 2014 BlueKitchen GmbH
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the copyright holders nor the names of
14 * contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 * 4. Any redistribution, use, or modification is done solely for
17 * personal benefit and not for any commercial purpose or for
18 * monetary gain.
19 *
20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BLUEKITCHEN
24 * GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * Please inquire about commercial licensing options at
34 * [email protected]
35 *
36 */
37
38 #define BTSTACK_FILE__ "hal_compat.c"
39
40 /**
41 * various functions to deal with flaws and portability issues
42 */
43
44 #include "hal_compat.h"
45 #include <msp430x54x.h>
46
47 // __delay_cycles is limited
waitAboutOneSecond(void)48 void waitAboutOneSecond(void){
49 int i;
50 for (i=0;i<1000;i++) __delay_cycles(16000);
51 }
52
53 // access far text for MSP430X platform
54 #if defined(__GNUC__) && (__MSP430X__ > 0)
55
FlashReadByte(uint32_t addr)56 uint8_t FlashReadByte (uint32_t addr){
57
58 uint8_t result;
59 uint32_t register sr, flash;
60
61 __asm__ __volatile__ (
62 "mov r2 , %1 \n"
63 "bic %3 , r2 \n"
64 "nop \n"
65 "movx.a %4 , %2 \n"
66 "movx.b @%2, %0 \n"
67 "mov %1 , r2 \n"
68 :"=X"(result),"=r"(sr),"=r"(flash)
69 :"i"(GIE),"m"(addr));
70
71 return result;
72 }
73
74 // argument order matches memcpy
FlashReadBlock(uint8_t * buffer,uint32_t addr,uint16_t len)75 void FlashReadBlock(uint8_t *buffer, uint32_t addr, uint16_t len){
76 while (len){
77 *buffer++ = FlashReadByte(addr++);
78 len--;
79 }
80 }
81
82 #endif
83