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author | Linus Nielsen Feltzing <linus@haxx.se> | 2002-04-20 23:18:14 +0000 |
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committer | Linus Nielsen Feltzing <linus@haxx.se> | 2002-04-20 23:18:14 +0000 |
commit | 257d17da6d64d2e265df3c80192a01f47e1dd2b7 (patch) | |
tree | 7bcbf265b5da8de1ba1b8cd35ce0850c25a99ff3 /firmware/test/i2c/main.c | |
parent | f3989d3c930a7f233eac5bb3bedc7712c126fa47 (diff) | |
download | rockbox-257d17da6d64d2e265df3c80192a01f47e1dd2b7.tar.gz rockbox-257d17da6d64d2e265df3c80192a01f47e1dd2b7.zip |
First version
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@158 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/test/i2c/main.c')
-rw-r--r-- | firmware/test/i2c/main.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/firmware/test/i2c/main.c b/firmware/test/i2c/main.c new file mode 100644 index 0000000000..588236aff1 --- /dev/null +++ b/firmware/test/i2c/main.c | |||
@@ -0,0 +1,128 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2002 by Linus Nielsen Feltzing | ||
11 | * | ||
12 | * All files in this archive are subject to the GNU General Public License. | ||
13 | * See the file COPYING in the source tree root for full license agreement. | ||
14 | * | ||
15 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
16 | * KIND, either express or implied. | ||
17 | * | ||
18 | ****************************************************************************/ | ||
19 | #include "i2c.h" | ||
20 | #include "mas.h" | ||
21 | #include "sh7034.h" | ||
22 | #include "debug.h" | ||
23 | |||
24 | int strlen(unsigned char* str) | ||
25 | { | ||
26 | int i=0; | ||
27 | while (*str++) | ||
28 | i++; | ||
29 | return i; | ||
30 | } | ||
31 | |||
32 | int main(void) | ||
33 | { | ||
34 | char buf[40]; | ||
35 | char str[32]; | ||
36 | int i=0; | ||
37 | |||
38 | /* Clear it all! */ | ||
39 | SSR1 &= ~(SCI_RDRF | SCI_ORER | SCI_PER | SCI_FER); | ||
40 | |||
41 | /* This enables the serial Rx interrupt, to be able to exit into the | ||
42 | debugger when you hit CTRL-C */ | ||
43 | SCR1 |= 0x40; | ||
44 | SCR1 &= ~0x80; | ||
45 | asm ("ldc\t%0,sr" : : "r"(0<<4)); | ||
46 | |||
47 | debugf("Olle: %d\n", 7); | ||
48 | |||
49 | i2c_init(); | ||
50 | debug("I2C Init done\n"); | ||
51 | i=mas_readmem(MAS_BANK_D1,0xff6,(unsigned long*)buf,2); | ||
52 | if (i) { | ||
53 | debugf("Error - mas_readmem() returned %d\n", i); | ||
54 | while(1); | ||
55 | } | ||
56 | |||
57 | i = buf[0] | buf[1] << 8; | ||
58 | debugf("MAS version: %x\n", i); | ||
59 | i = buf[4] | buf[5] << 8; | ||
60 | debugf("MAS revision: %x\n", i); | ||
61 | |||
62 | i=mas_readmem(MAS_BANK_D1,0xff9,(unsigned long*)buf,7); | ||
63 | if (i) { | ||
64 | debugf("Error - mas_readmem() returned %d\n", i); | ||
65 | while(1); | ||
66 | } | ||
67 | |||
68 | for(i = 0;i < 7;i++) | ||
69 | { | ||
70 | str[i*2+1] = buf[i*4]; | ||
71 | str[i*2] = buf[i*4+1]; | ||
72 | } | ||
73 | str[i*2] = 0; | ||
74 | debugf("Description: %s\n", str); | ||
75 | |||
76 | i=mas_readreg(0xe6); | ||
77 | if (i < 0) { | ||
78 | debugf("Error - mas_readreg() returned %d\n", i); | ||
79 | while(1); | ||
80 | } | ||
81 | |||
82 | debugf("Register 0xe6: %x\n", i); | ||
83 | |||
84 | |||
85 | debugf("Writing register 0xaa\n"); | ||
86 | |||
87 | i=mas_writereg(0xaa, 0x1); | ||
88 | if (i < 0) { | ||
89 | debugf("Error - mas_writereg() returned %d\n", i); | ||
90 | while(1); | ||
91 | } | ||
92 | |||
93 | i=mas_readreg(0xaa); | ||
94 | if (i < 0) { | ||
95 | debugf("Error - mas_readreg() returned %d\n", i); | ||
96 | while(1); | ||
97 | } | ||
98 | |||
99 | debugf("Register 0xaa: %x\n", i); | ||
100 | |||
101 | debugf("Writing register 0xaa again\n"); | ||
102 | |||
103 | i=mas_writereg(0xaa, 0); | ||
104 | if (i < 0) { | ||
105 | debugf("Error - mas_writereg() returned %d\n", i); | ||
106 | while(1); | ||
107 | } | ||
108 | |||
109 | i=mas_readreg(0xaa); | ||
110 | if (i < 0) { | ||
111 | debugf("Error - mas_readreg() returned %d\n", i); | ||
112 | while(1); | ||
113 | } | ||
114 | |||
115 | debugf("Register 0xaa: %x\n", i); | ||
116 | |||
117 | while(1); | ||
118 | } | ||
119 | |||
120 | extern const void stack(void); | ||
121 | |||
122 | const void* vectors[] __attribute__ ((section (".vectors"))) = | ||
123 | { | ||
124 | main, /* Power-on reset */ | ||
125 | stack, /* Power-on reset (stack pointer) */ | ||
126 | main, /* Manual reset */ | ||
127 | stack /* Manual reset (stack pointer) */ | ||
128 | }; | ||