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Cosmetics, whitespace, coding style.

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This commit is contained in:
Uwe Hermann 2010-02-23 23:38:05 +01:00
parent 2c404f962a
commit 0a0be96d12
2 changed files with 205 additions and 185 deletions
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2
examples/mb525/pwmleds/README
View File

@ -2,7 +2,7 @@
README
------------------------------------------------------------------------------
This is a PWM based led fading example using libopenstm32.
This is a PWM based LED fading example using libopenstm32.
It's intended for the ST STM32-based MB525 eval board (see
http://www.st.com/stonline/products/literature/um/13472.htm for details). It

388
examples/mb525/pwmleds/pwmleds.c
View File

@ -17,13 +17,14 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libopenstm32/common.h>
#include <libopenstm32/rcc.h>
#include <libopenstm32/gpio.h>
#include <libopenstm32/timer.h>
//#define COMPARE
#define COMPARE
//#define MOVING_FADE
#define KITT
// #define KITT
#ifdef COMPARE
#define GAMMA_LINEAR
@ -49,83 +50,83 @@
* Iout = Iin ** gamma
*/
#ifdef GAMMA_LINEAR
static const uint16_t gamma_table_linear[] = {
1, 4, 9, 17, 26, 37, 51, 67,
84, 104, 126, 149, 175, 203, 233, 265,
299, 334, 372, 412, 454, 499, 545, 593,
643, 695, 749, 805, 864, 924, 986, 1050,
1116, 1185, 1255, 1327, 1402, 1478, 1556, 1637,
1719, 1803, 1890, 1978, 2068, 2161, 2255, 2352,
2450, 2550, 2653, 2757, 2864, 2972, 3082, 3195,
3309, 3426, 3544, 3664, 3787, 3911, 4038, 4166,
4296, 4429, 4563, 4700, 4838, 4978, 5121, 5265,
5411, 5560, 5710, 5862, 6017, 6173, 6331, 6492,
6654, 6818, 6985, 7153, 7323, 7495, 7670, 7846,
8024, 8204, 8387, 8571, 8757, 8945, 9135, 9327,
9521, 9718, 9916, 10116, 10318, 10522, 10728, 10936,
11146, 11358, 11572, 11788, 12006, 12226, 12448, 12672,
12897, 13125, 13355, 13587, 13821, 14057, 14294, 14534,
14776, 15020, 15265, 15513, 15763, 16014, 16268, 16524,
16781, 17041, 17302, 17566, 17831, 18099, 18368, 18640,
18913, 19189, 19466, 19745, 20027, 20310, 20595, 20883,
21172, 21463, 21756, 22051, 22349, 22648, 22949, 23252,
23557, 23864, 24173, 24484, 24797, 25112, 25429, 25748,
26069, 26391, 26716, 27043, 27372, 27702, 28035, 28370,
28707, 29045, 29386, 29728, 30073, 30419, 30768, 31118,
31471, 31825, 32182, 32540, 32900, 33263, 33627, 33993,
34361, 34731, 35104, 35478, 35854, 36232, 36612, 36994,
37378, 37764, 38152, 38542, 38933, 39327, 39723, 40121,
40521, 40922, 41326, 41732, 42139, 42549, 42960, 43374,
43789, 44207, 44626, 45048, 45471, 45896, 46324, 46753,
47184, 47617, 48052, 48490, 48929, 49370, 49813, 50258,
50705, 51154, 51604, 52057, 52512, 52969, 53428, 53888,
54351, 54816, 55282, 55751, 56222, 56694, 57169, 57645,
58123, 58604, 59086, 59570, 60057, 60545, 61035, 61527,
62021, 62517, 63016, 63516, 64018, 64521, 65027, 65535
static const u16 gamma_table_linear[] = {
1, 4, 9, 17, 26, 37, 51, 67,
84, 104, 126, 149, 175, 203, 233, 265,
299, 334, 372, 412, 454, 499, 545, 593,
643, 695, 749, 805, 864, 924, 986, 1050,
1116, 1185, 1255, 1327, 1402, 1478, 1556, 1637,
1719, 1803, 1890, 1978, 2068, 2161, 2255, 2352,
2450, 2550, 2653, 2757, 2864, 2972, 3082, 3195,
3309, 3426, 3544, 3664, 3787, 3911, 4038, 4166,
4296, 4429, 4563, 4700, 4838, 4978, 5121, 5265,
5411, 5560, 5710, 5862, 6017, 6173, 6331, 6492,
6654, 6818, 6985, 7153, 7323, 7495, 7670, 7846,
8024, 8204, 8387, 8571, 8757, 8945, 9135, 9327,
9521, 9718, 9916, 10116, 10318, 10522, 10728, 10936,
11146, 11358, 11572, 11788, 12006, 12226, 12448, 12672,
12897, 13125, 13355, 13587, 13821, 14057, 14294, 14534,
14776, 15020, 15265, 15513, 15763, 16014, 16268, 16524,
16781, 17041, 17302, 17566, 17831, 18099, 18368, 18640,
18913, 19189, 19466, 19745, 20027, 20310, 20595, 20883,
21172, 21463, 21756, 22051, 22349, 22648, 22949, 23252,
23557, 23864, 24173, 24484, 24797, 25112, 25429, 25748,
26069, 26391, 26716, 27043, 27372, 27702, 28035, 28370,
28707, 29045, 29386, 29728, 30073, 30419, 30768, 31118,
31471, 31825, 32182, 32540, 32900, 33263, 33627, 33993,
34361, 34731, 35104, 35478, 35854, 36232, 36612, 36994,
37378, 37764, 38152, 38542, 38933, 39327, 39723, 40121,
40521, 40922, 41326, 41732, 42139, 42549, 42960, 43374,
43789, 44207, 44626, 45048, 45471, 45896, 46324, 46753,
47184, 47617, 48052, 48490, 48929, 49370, 49813, 50258,
50705, 51154, 51604, 52057, 52512, 52969, 53428, 53888,
54351, 54816, 55282, 55751, 56222, 56694, 57169, 57645,
58123, 58604, 59086, 59570, 60057, 60545, 61035, 61527,
62021, 62517, 63016, 63516, 64018, 64521, 65027, 65535,
};
#endif
#ifdef GAMMA_1_3
static const uint16_t gamma_table_1_3[] = {
// Gamma 1.3
0, 49, 120, 203, 296, 395, 501, 612,
728, 848, 973, 1101, 1233, 1368, 1506, 1648,
1792, 1939, 2088, 2241, 2395, 2552, 2711, 2872,
3036, 3201, 3369, 3538, 3709, 3882, 4057, 4234,
4412, 4592, 4774, 4957, 5142, 5329, 5517, 5706,
5897, 6090, 6283, 6479, 6675, 6873, 7072, 7273,
7475, 7678, 7882, 8088, 8294, 8502, 8711, 8922,
9133, 9346, 9559, 9774, 9990, 10207, 10425, 10644,
10864, 11086, 11308, 11531, 11755, 11981, 12207, 12434,
12662, 12891, 13121, 13352, 13584, 13817, 14051, 14285,
14521, 14757, 14994, 15233, 15472, 15712, 15952, 16194,
16436, 16679, 16923, 17168, 17414, 17660, 17908, 18156,
18405, 18654, 18905, 19156, 19408, 19660, 19914, 20168,
20423, 20679, 20935, 21192, 21450, 21708, 21968, 22228,
22488, 22750, 23012, 23275, 23538, 23802, 24067, 24332,
24599, 24865, 25133, 25401, 25670, 25939, 26209, 26480,
26751, 27023, 27296, 27569, 27843, 28118, 28393, 28669,
28945, 29222, 29500, 29778, 30057, 30336, 30616, 30897,
31178, 31460, 31742, 32025, 32308, 32592, 32877, 33162,
33448, 33734, 34021, 34309, 34597, 34885, 35175, 35464,
35754, 36045, 36337, 36628, 36921, 37214, 37507, 37801,
38096, 38391, 38686, 38982, 39279, 39576, 39874, 40172,
40471, 40770, 41070, 41370, 41670, 41972, 42273, 42576,
42878, 43181, 43485, 43789, 44094, 44399, 44705, 45011,
45317, 45625, 45932, 46240, 46549, 46858, 47167, 47477,
47787, 48098, 48409, 48721, 49034, 49346, 49659, 49973,
50287, 50602, 50917, 51232, 51548, 51864, 52181, 52498,
52816, 53134, 53452, 53771, 54091, 54411, 54731, 55052,
55373, 55694, 56016, 56339, 56662, 56985, 57309, 57633,
57957, 58282, 58608, 58933, 59260, 59586, 59913, 60241,
60569, 60897, 61226, 61555, 61884, 62214, 62545, 62875,
63206, 63538, 63870, 64202, 64535, 64868, 65201, 65535
static const u16 gamma_table_1_3[] = {
/* Gamma 1.3 */
0, 49, 120, 203, 296, 395, 501, 612,
728, 848, 973, 1101, 1233, 1368, 1506, 1648,
1792, 1939, 2088, 2241, 2395, 2552, 2711, 2872,
3036, 3201, 3369, 3538, 3709, 3882, 4057, 4234,
4412, 4592, 4774, 4957, 5142, 5329, 5517, 5706,
5897, 6090, 6283, 6479, 6675, 6873, 7072, 7273,
7475, 7678, 7882, 8088, 8294, 8502, 8711, 8922,
9133, 9346, 9559, 9774, 9990, 10207, 10425, 10644,
10864, 11086, 11308, 11531, 11755, 11981, 12207, 12434,
12662, 12891, 13121, 13352, 13584, 13817, 14051, 14285,
14521, 14757, 14994, 15233, 15472, 15712, 15952, 16194,
16436, 16679, 16923, 17168, 17414, 17660, 17908, 18156,
18405, 18654, 18905, 19156, 19408, 19660, 19914, 20168,
20423, 20679, 20935, 21192, 21450, 21708, 21968, 22228,
22488, 22750, 23012, 23275, 23538, 23802, 24067, 24332,
24599, 24865, 25133, 25401, 25670, 25939, 26209, 26480,
26751, 27023, 27296, 27569, 27843, 28118, 28393, 28669,
28945, 29222, 29500, 29778, 30057, 30336, 30616, 30897,
31178, 31460, 31742, 32025, 32308, 32592, 32877, 33162,
33448, 33734, 34021, 34309, 34597, 34885, 35175, 35464,
35754, 36045, 36337, 36628, 36921, 37214, 37507, 37801,
38096, 38391, 38686, 38982, 39279, 39576, 39874, 40172,
40471, 40770, 41070, 41370, 41670, 41972, 42273, 42576,
42878, 43181, 43485, 43789, 44094, 44399, 44705, 45011,
45317, 45625, 45932, 46240, 46549, 46858, 47167, 47477,
47787, 48098, 48409, 48721, 49034, 49346, 49659, 49973,
50287, 50602, 50917, 51232, 51548, 51864, 52181, 52498,
52816, 53134, 53452, 53771, 54091, 54411, 54731, 55052,
55373, 55694, 56016, 56339, 56662, 56985, 57309, 57633,
57957, 58282, 58608, 58933, 59260, 59586, 59913, 60241,
60569, 60897, 61226, 61555, 61884, 62214, 62545, 62875,
63206, 63538, 63870, 64202, 64535, 64868, 65201, 65535,
};
#endif
#ifdef GAMMA_2_5
static const uint16_t gamma_table_2_5[] = {
// gamma = 2.5
static const u16 gamma_table_2_5[] = {
/* gamma = 2.5 */
0, 0, 0, 1, 2, 4, 6, 8,
11, 15, 20, 25, 31, 38, 46, 55,
65, 75, 87, 99, 113, 128, 143, 160,
@ -157,13 +158,13 @@ static const uint16_t gamma_table_2_5[] = {
47396, 47927, 48461, 48999, 49540, 50085, 50634, 51186,
51742, 52301, 52864, 53431, 54001, 54575, 55153, 55734,
56318, 56907, 57499, 58095, 58695, 59298, 59905, 60515,
61130, 61748, 62370, 62995, 63624, 64258, 64894, 65535
61130, 61748, 62370, 62995, 63624, 64258, 64894, 65535,
};
#endif
#ifdef GAMMA_3_0
static const uint16_t gamma_table_3_0[] = {
// gamma = 3.0
static const u16 gamma_table_3_0[] = {
/* gamma = 3.0 */
0, 0, 0, 0, 0, 0, 1, 1,
2, 3, 4, 5, 7, 9, 11, 13,
16, 19, 23, 27, 32, 37, 42, 48,
@ -195,7 +196,7 @@ static const uint16_t gamma_table_3_0[] = {
44422, 45019, 45622, 46231, 46844, 47463, 48088, 48718,
49353, 49994, 50641, 51293, 51950, 52614, 53282, 53957,
54637, 55323, 56014, 56712, 57415, 58123, 58838, 59558,
60285, 61017, 61755, 62499, 63249, 64005, 64767, 65535
60285, 61017, 61755, 62499, 63249, 64005, 64767, 65535,
};
#endif
@ -225,28 +226,25 @@ void clock_setup(void)
/* Enable GPIOC, Alternate Function clocks. */
rcc_peripheral_enable_clock(&RCC_APB2ENR, IOPCEN | AFIOEN);
}
void gpio_setup(void)
{
/* Set GPIO6 (in GPIO port C) to
* 'output alternate function push-pull'.
*/
/*
* Set GPIO6 (in GPIO port C) to
* 'output alternate function push-pull'.
*/
gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO6 |
GPIO7 |
GPIO8 |
GPIO9);
GPIO_CNF_OUTPUT_ALTFN_PUSHPULL,
GPIO6 | GPIO7 | GPIO8 | GPIO9);
/* Remap TIM3:
* CH1 -> PC6
* CH2 -> PC7
* CH3 -> PC8
* CH4 -> PC9
*/
AFIO_MAPR |= AFIO_MAPR_TIM3_REMAP_FULL_REMAP;
/* Remap TIM3:
* CH1 -> PC6
* CH2 -> PC7
* CH3 -> PC8
* CH4 -> PC9
*/
AFIO_MAPR |= AFIO_MAPR_TIM3_REMAP_FULL_REMAP;
}
void tim_setup(void)
{
@ -263,7 +261,7 @@ void tim_setup(void)
TIM3_CCMR1 |= TIM_CCMR1_OC1M_PWM1 | TIM_CCMR1_OC1PE;
/* Polarity and state */
//TIM3_CCER = TIM_CCER_CC1P | TIM_CCER_CC1E;
// TIM3_CCER = TIM_CCER_CC1P | TIM_CCER_CC1E;
TIM3_CCER |= TIM_CCER_CC1E;
/* Capture compare value */
@ -274,7 +272,7 @@ void tim_setup(void)
TIM3_CCMR1 |= TIM_CCMR1_OC2M_PWM1 | TIM_CCMR1_OC2PE;
/* Polarity and state */
//TIM3_CCER = TIM_CCER_CC1P | TIM_CCER_CC1E;
// TIM3_CCER = TIM_CCER_CC1P | TIM_CCER_CC1E;
TIM3_CCER |= TIM_CCER_CC2E;
/* Capture compare value */
@ -285,7 +283,7 @@ void tim_setup(void)
TIM3_CCMR2 |= TIM_CCMR2_OC3M_PWM1 | TIM_CCMR2_OC3PE;
/* Polarity and state */
//TIM3_CCER = TIM_CCER_CC1P | TIM_CCER_CC1E;
// TIM3_CCER = TIM_CCER_CC1P | TIM_CCER_CC1E;
TIM3_CCER |= TIM_CCER_CC3E;
/* Capture compare value */
@ -296,7 +294,7 @@ void tim_setup(void)
TIM3_CCMR2 |= TIM_CCMR2_OC4M_PWM1 | TIM_CCMR2_OC4PE;
/* Polarity and state */
//TIM3_CCER = TIM_CCER_CC1P | TIM_CCER_CC1E;
// TIM3_CCER = TIM_CCER_CC1P | TIM_CCER_CC1E;
TIM3_CCER |= TIM_CCER_CC4E;
/* Capture compare value */
@ -308,7 +306,6 @@ void tim_setup(void)
/* Counter enable */
TIM3_CR1 |= TIM_CR1_CEN;
}
int main(void)
@ -320,102 +317,123 @@ int main(void)
tim_setup();
#ifdef COMPARE
j0=0;
d0=1;
j1=0;
d1=1;
j2=0;
d2=1;
j3=0;
d3=1;
while (1)
{
TIM3_CCR1= gamma_table_linear[j0];
j0+=d0;
if(j0==255) d0=-1;
if(j0==0) d0=1;
TIM3_CCR2= gamma_table_1_3[j1];
j1+=d1;
if(j1==255) d1=-1;
if(j1==0) d1=1;
TIM3_CCR3= gamma_table_2_5[j2];
j2+=d2;
if(j2==255) d2=-1;
if(j2==0) d2=1;
j0 = 0;
d0 = 1;
j1 = 0;
d1 = 1;
j2 = 0;
d2 = 1;
j3 = 0;
d3 = 1;
while (1) {
TIM3_CCR1 = gamma_table_linear[j0];
j0 += d0;
if (j0 == 255)
d0 =- 1;
if (j0 == 0)
d0 = 1;
TIM3_CCR2 = gamma_table_1_3[j1];
j1 += d1;
if (j1 == 255)
d1 =- 1;
if (j1 == 0)
d1 = 1;
TIM3_CCR3 = gamma_table_2_5[j2];
j2 += d2;
if (j2 == 255)
d2 =- 1;
if (j2 == 0)
d2 = 1;
TIM3_CCR4= gamma_table_3_0[j3];
j3+=d3;
if(j3==255) d3=-1;
if(j3==0) d3=1;
for(i=0; i< 50000; i++){}
j3 += d3;
if (j3 == 255)
d3 =- 1;
if (j3 == 0)
d3 = 1;
for (i = 0; i < 50000; i++);
}
#endif
#ifdef MOVING_FADE
j0=0;
d0=1;
j1=128;
d1=1;
j2=255;
d2=-1;
j3=128;
d3=-1;
while (1)
{
TIM3_CCR1= GAMMA_TABLE[j0];
j0+=d0;
if(j0==255) d0=-1;
if(j0==0) d0=1;
TIM3_CCR2= GAMMA_TABLE[j1];
j1+=d1;
if(j1==255) d1=-1;
if(j1==0) d1=1;
TIM3_CCR3= GAMMA_TABLE[j2];
j2+=d2;
if(j2==255) d2=-1;
if(j2==0) d2=1;
TIM3_CCR4= GAMMA_TABLE[j3];
j3+=d3;
if(j3==255) d3=-1;
if(j3==0) d3=1;
for(i=0; i< 10000; i++){}
j0 = 0;
d0 = 1;
j1 = 128;
d1 = 1;
j2 = 255;
d2 = -1;
j3 = 128;
d3 = -1;
while (1) {
TIM3_CCR1 = GAMMA_TABLE[j0];
j0 += d0;
if (j0 == 255)
d0 =- 1;
if (j0 == 0)
d0 = 1;
TIM3_CCR2 = GAMMA_TABLE[j1];
j1 += d1;
if (j1 == 255)
d1 =- 1;
if (j1 == 0)
d1 = 1;
TIM3_CCR3 = GAMMA_TABLE[j2];
j2 += d2;
if (j2 == 255)
d2 =- 1;
if (j2 == 0)
d2 = 1;
TIM3_CCR4 = GAMMA_TABLE[j3];
j3 += d3;
if (j3 == 255)
d3 =- 1;
if (j3 == 0)
d3 = 1;
for (i = 0; i < 10000; i++);
}
#endif
#ifdef KITT
j0=255;
d0=-1;
j1=20;
d1=-1;
j2=20;
d2=-1;
j3=20;
d3=-1;
j=0;
k=0;
kd=1;
while (1)
{
TIM3_CCR1= GAMMA_TABLE[j0];
j0+=d0;
if(j0==255) d0=-1;
if(j0==19) j0=20;
TIM3_CCR2= GAMMA_TABLE[j1];
j1+=d1;
if(j1==255) d1=-1;
if(j1==19) j1=20;
TIM3_CCR3= GAMMA_TABLE[j2];
j2+=d2;
if(j2==255) d2=-1;
if(j2==19) j2=20;
TIM3_CCR4= GAMMA_TABLE[j3];
j3+=d3;
if(j3==255) d3=-1;
if(j3==19) j3=20;
for(i=0; i< 5000; i++){}
j0 = 255;
d0 = -1;
j1 = 20;
d1 = -1;
j2 = 20;
d2 = -1;
j3 = 20;
d3 = -1;
j = 0;
k = 0;
kd = 1;
while (1) {
TIM3_CCR1 = GAMMA_TABLE[j0];
j0 += d0;
if (j0 == 255)
d0 =- 1;
if (j0 == 19)
j0 = 20;
TIM3_CCR2 = GAMMA_TABLE[j1];
j1 += d1;
if (j1 == 255)
d1 =- 1;
if (j1 == 19)
j1 = 20;
TIM3_CCR3 = GAMMA_TABLE[j2];
j2 += d2;
if (j2 == 255)
d2 =- 1;
if (j2 == 19)
j2 = 20;
TIM3_CCR4 = GAMMA_TABLE[j3];
j3 += d3;
if (j3 == 255)
d3 =- 1;
if (j3 == 19)
j3 = 20;
for (i = 0; i < 5000; i++);
j++;
if(j==100){
j=0;
switch(k+=kd){
if (j == 100) {
j = 0;
switch (k += kd) {
case 0:
j0 = 255;
break;
@ -429,8 +447,10 @@ int main(void)
j3 = 255;
break;
}
if(k==3) kd=-1;
if(k==0) kd=1;
if (k == 3)
kd =- 1;
if (k == 0)
kd = 1;
}
}
#endif