9bc0ad4952
The boost converter is fairly weak. This was known going into this design. However, the LED brightness wasn't ever really calculated and was just assumed it would be kept under control by the specific LED programs in use. Since per-color gain tuning isn't implemented yet, for now the default global gain is turned down to prevent voltage drop from turning off white LEDs when programs that light a significant number of LEDs are run. If turning up the brightness the white LEDs can still drop.
153 lines
3.1 KiB
C
153 lines
3.1 KiB
C
/*
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*
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*/
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#include "ch32x035_conf.h"
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#include <string.h>
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#include "matrix.h"
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#include "driver/aw20xxx.h"
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// #include "user_config.h"
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#define AW20X_DIM 20 // initial global current setting
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#define AW20X_COLS 6
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#define AW20X_ROWS 12
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#define AW20X_FADE_COUNT (AW20X_ROWS * AW20X_COLS)
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#define HWEN_PORT GPIOB
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#define HWEN_PIN GPIO_Pin_7
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AW20x awled;
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uint8_t awled_fade[AW20X_FADE_COUNT];
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static uint8_t led_matrix_needs_update = 0;
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const LedMap led_map = {
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// map is 1-based to match LED refdegs on the board
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.ribbon = { // ribbon
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13, 25, 1, 49,
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37, 14,
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26, 2, 38,
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50, 3,
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27, 15,
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39, 51,
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4, 16,
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28, 40,
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52, 5,
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17, 29,
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41, 53,
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6, 18,
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30, 42,
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54,
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0, 0, 0, 0, 0, 0,
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7, 0,
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19, 0,
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31, 0,
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43, 0,
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55, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0,
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8, 0, 0, 20, 0, 0, 32,
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0, 0
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},
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.a = { // "A"
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9, 21, 33, 0, 0, 0, 45, 57, 10,
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22,
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34, 46, 58, 11, 23, 35, 47, 59, 12
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},
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.ii_lf = { // "//" left one
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67, 70, 71, 72, 44 // 61, 62, 63, 64, 44
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},
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.ii_rt = { // "//" right one
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60, 48, 36, 24, 56
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}
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};
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LedMap led_set;
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void matrix_init()
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{
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volatile uint32_t x;
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// make sure the hardware pin is on before calling.
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HWEN_PORT->BSHR = HWEN_PIN;
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// wait a little while to ensure controller is awake
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x = 131072;
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while (x--);
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// clear fade
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memset(awled_fade, 0x00, sizeof(awled_fade));
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// set up RGBLED chip
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awled.fade = awled_fade;
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aw20x_init(&awled, AW20X_ADDR_VDD << 1, AW20X_COLS, AW20X_ROWS, AW20X_IMAX_20MA);
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aw20x_set_dim_global(&awled, AW20X_DIM);
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aw20x_set_fade(&awled);
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aw20x_led_enable_range(&awled, 0, (AW20X_COLS * AW20X_MAX_ROWS) - 1);
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}
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void matrix_flag_update()
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{
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led_matrix_needs_update = 1;
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}
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/*
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static uint8_t delay = 0;
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static uint8_t work = 0;
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*/
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void matrix_send()
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{
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uint32_t i;
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uint8_t *fade = awled_fade;
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uint8_t *map = (uint8_t *)&led_map;
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uint8_t *set = (uint8_t *)&led_set;
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if (led_matrix_needs_update) {
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led_matrix_needs_update = 0;
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// remap data for sending
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for (i = 0; i < sizeof(led_map); i++) {
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if ((*map) && ((*map) <= AW20X_FADE_COUNT)) {
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fade[(*map) - 1] = *set;
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}
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map++; set++;
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}
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/* testing
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if (delay) {
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delay--;
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} else {
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delay = 20;
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for (int i = 0; i < sizeof(led_map.ribbon); i++) {
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if (led_map.ribbon[i]) {
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awled_fade[led_map.ribbon[i] - 1] = 0;
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}
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}
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if (led_map.ribbon[work]) {
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awled_fade[led_map.ribbon[work] - 1] = 0xff;
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}
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work++;
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if (work >= sizeof(led_map.ribbon)) work = 0;
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matrix_flag_update();
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}
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*/
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aw20x_set_fade(&awled);
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}
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} |