add: add RGBW LED strip control
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beb6d33f85
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0250d81862
197
application.c
197
application.c
@ -102,6 +102,18 @@ static volatile uint32_t dial_steps = 0; /**< set to drv8825_steps when dial is
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static uint8_t rgbmatrix_data[RGBMATRIX_HEIGHT / 2][RGBMATRIX_WIDTH * 2]; /**< data to be sent to RGB matrix (one byte includes upper and lower half values, each byte has 2 clock edges) */
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#define RGBMATRIX_TIMER 3 /**< timer to update lines */
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// RGBW LED strips
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#define STRIP_TIMER 4 /**< timer used for the PWM */
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#define STRIP_R_PIN PB9 /**< pin used to drive gate for red channel */
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#define STRIP_R_CH 4 /**< channel used for the red channel */
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#define STRIP_G_PIN PB8 /**< pin used to drive gate for green channel */
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#define STRIP_G_CH 3 /**< channel used for the green channel */
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#define STRIP_B_PIN PB7 /**< pin used to drive gate for blue channel */
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#define STRIP_B_CH 2 /**< channel used for the blue channel */
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#define STRIP_W_PIN PB6 /**< pin used to drive gate for white channel */
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#define STRIP_W_CH 1 /**< channel used for the white channel */
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#define STRIP_AF GPIO_AF2 /**< alternate function for pin to be used as timer channel */
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/** set motor speed and direction
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* @param[in] speed speed (in Hz) and direction (sign)
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*/
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@ -552,6 +564,88 @@ static void command_matrix(void* argument)
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rgbmatrix_set(2, 3, false, false, true);
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}
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/** set intensity of LED strip
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* @param[in] red red intensity (0-0xffff), -1 to leave
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* @param[in] green green intensity (0-0xffff), -1 to leave
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* @param[in] blue blue intensity (0-0xffff), -1 to leave
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* @param[in] white white intensity (0-0xffff), -1 to leave
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*/
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static void strip_rgbw(int32_t red, int32_t green, int32_t blue, int32_t white)
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{
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if (red >= 0 && red <= 0xffff) {
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timer_set_oc_value(TIM(STRIP_TIMER), TIM_OC(STRIP_R_CH), red);
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}
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if (green >= 0 && green <= 0xffff) {
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timer_set_oc_value(TIM(STRIP_TIMER), TIM_OC(STRIP_G_CH), green);
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}
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if (blue >= 0 && blue <= 0xffff) {
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timer_set_oc_value(TIM(STRIP_TIMER), TIM_OC(STRIP_B_CH), blue);
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}
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if (white >= 0 && white <= 0xffff) {
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timer_set_oc_value(TIM(STRIP_TIMER), TIM_OC(STRIP_W_CH), white);
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}
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}
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static void command_strip_red(void* argument)
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{
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if (!argument) {
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printf("argument required\n");
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return;
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}
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uint16_t set = *(uint32_t*)argument; // get provide value
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if (set > 100) {
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set = 100; // enforce maximum
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}
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strip_rgbw(0xffff * set / 100, -1, -1, -1); // set light intensity
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printf("red channel set to %u%%\n", set);
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}
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static void command_strip_green(void* argument)
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{
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if (!argument) {
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printf("argument required\n");
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return;
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}
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uint16_t set = *(uint32_t*)argument; // get provide value
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if (set > 100) {
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set = 100; // enforce maximum
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}
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strip_rgbw(-1, 0xffff * set / 100, -1, -1); // set light intensity
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printf("green channel set to %u%%\n", set);
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}
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static void command_strip_blue(void* argument)
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{
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if (!argument) {
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printf("argument required\n");
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return;
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}
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uint16_t set = *(uint32_t*)argument; // get provide value
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if (set > 100) {
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set = 100; // enforce maximum
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}
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strip_rgbw(-1, -1, 0xffff * set / 100, -1); // set light intensity
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printf("blue channel set to %u%%\n", set);
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}
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static void command_strip_white(void* argument)
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{
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if (!argument) {
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printf("argument required\n");
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return;
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}
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uint16_t set = *(uint32_t*)argument; // get provide value
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if (set > 100) {
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set = 100; // enforce maximum
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}
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strip_rgbw(-1, -1, -1, 0xffff * set / 100); // set light intensity
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printf("white channel set to %u%%\n", set);
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}
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/** list of all supported commands */
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static const struct menu_command_t menu_commands[] = {
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{
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@ -634,6 +728,38 @@ static const struct menu_command_t menu_commands[] = {
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.argument_description = NULL,
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.command_handler = &command_matrix,
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},
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{
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.shortcut = 'r',
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.name = "strip_red",
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.command_description = "set LED strip red intensity",
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.argument = MENU_ARGUMENT_UNSIGNED,
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.argument_description = "%",
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.command_handler = &command_strip_red,
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},
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{
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.shortcut = 'g',
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.name = "strip_green",
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.command_description = "set LED strip green intensity",
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.argument = MENU_ARGUMENT_UNSIGNED,
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.argument_description = "%",
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.command_handler = &command_strip_green,
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},
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{
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.shortcut = 'b',
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.name = "strip_blue",
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.command_description = "set LED strip blue intensity",
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.argument = MENU_ARGUMENT_UNSIGNED,
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.argument_description = "%",
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.command_handler = &command_strip_blue,
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},
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{
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.shortcut = 'w',
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.name = "strip_white",
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.command_description = "set LED strip white intensity",
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.argument = MENU_ARGUMENT_UNSIGNED,
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.argument_description = "%",
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.command_handler = &command_strip_white,
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},
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};
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static void command_help(void* argument)
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@ -865,6 +991,76 @@ void main(void)
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puts_debug("OK\n");
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// setup LED strips
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puts_debug("setup RGBW LED strips: ");
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// configure pins
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// red channel
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rcc_periph_clock_enable(GPIO_RCC(STRIP_R_PIN)); // enable clock for GPIO port peripheral
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gpio_clear(GPIO_PORT(STRIP_R_PIN), GPIO_PIN(STRIP_R_PIN)); // switch off light
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gpio_set_output_options(GPIO_PORT(STRIP_R_PIN), GPIO_OTYPE_PP, GPIO_OSPEED_2MHZ, GPIO_PIN(STRIP_R_PIN)); // set slow edge
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gpio_set_af(GPIO_PORT(STRIP_R_PIN), STRIP_AF, GPIO_PIN(STRIP_R_PIN)); // set alternate function to
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gpio_mode_setup(GPIO_PORT(STRIP_R_PIN), GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN(STRIP_R_PIN)); // set pin to alternate timer channel
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// green channel
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rcc_periph_clock_enable(GPIO_RCC(STRIP_G_PIN)); // enable clock for GPIO port peripheral
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gpio_clear(GPIO_PORT(STRIP_G_PIN), GPIO_PIN(STRIP_G_PIN)); // switch off light
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gpio_set_output_options(GPIO_PORT(STRIP_G_PIN), GPIO_OTYPE_PP, GPIO_OSPEED_2MHZ, GPIO_PIN(STRIP_G_PIN)); // set slow edge
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gpio_set_af(GPIO_PORT(STRIP_G_PIN), STRIP_AF, GPIO_PIN(STRIP_G_PIN)); // set alternate function to
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gpio_mode_setup(GPIO_PORT(STRIP_G_PIN), GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN(STRIP_G_PIN)); // set pin as output
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// blue channel
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rcc_periph_clock_enable(GPIO_RCC(STRIP_B_PIN)); // enable clock for GPIO port peripheral
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gpio_clear(GPIO_PORT(STRIP_B_PIN), GPIO_PIN(STRIP_B_PIN)); // switch off light
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gpio_set_output_options(GPIO_PORT(STRIP_B_PIN), GPIO_OTYPE_PP, GPIO_OSPEED_2MHZ, GPIO_PIN(STRIP_B_PIN)); // set slow edge
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gpio_set_af(GPIO_PORT(STRIP_B_PIN), STRIP_AF, GPIO_PIN(STRIP_B_PIN)); // set alternate function to
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gpio_mode_setup(GPIO_PORT(STRIP_B_PIN), GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN(STRIP_B_PIN)); // set pin as output
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// white channel
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rcc_periph_clock_enable(GPIO_RCC(STRIP_W_PIN)); // enable clock for GPIO port peripheral
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gpio_clear(GPIO_PORT(STRIP_W_PIN), GPIO_PIN(STRIP_W_PIN)); // switch off light
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gpio_set_output_options(GPIO_PORT(STRIP_W_PIN), GPIO_OTYPE_PP, GPIO_OSPEED_2MHZ, GPIO_PIN(STRIP_W_PIN)); // set slow edge
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gpio_set_af(GPIO_PORT(STRIP_W_PIN), STRIP_AF, GPIO_PIN(STRIP_W_PIN)); // set alternate function to
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gpio_mode_setup(GPIO_PORT(STRIP_W_PIN), GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN(STRIP_W_PIN)); // set pin as output
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// configure timer to generate PWM
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rcc_periph_clock_enable(RCC_TIM(STRIP_TIMER)); // enable clock for timer peripheral
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rcc_periph_reset_pulse(RST_TIM(STRIP_TIMER)); // reset timer state
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timer_disable_counter(TIM(STRIP_TIMER)); // disable timer to configure it
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timer_set_mode(TIM(STRIP_TIMER), TIM_CR1_CKD_CK_INT, TIM_CR1_CMS_EDGE, TIM_CR1_DIR_UP); // set timer mode, use undivided timer clock, edge alignment (simple count), and count up
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timer_set_prescaler(TIM(STRIP_TIMER), 10 - 1); // set presecaler for fast enough for LED PWM and less stress on MOSFET gate ( (84E6/(10 * 2**16))=1281 Hz )
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// red channel
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timer_set_oc_mode(TIM(STRIP_TIMER), TIM_OC(STRIP_R_CH), TIM_OCM_PWM1); // set output to PWM mode
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timer_enable_oc_output(TIM(STRIP_TIMER), TIM_OC(STRIP_R_CH)); // enable PWM output
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timer_set_oc_value(TIM(STRIP_TIMER), TIM_OC(STRIP_R_CH), 0); // disable light
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// green channel
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timer_set_oc_mode(TIM(STRIP_TIMER), TIM_OC(STRIP_G_CH), TIM_OCM_PWM1); // set output to PWM mode
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timer_enable_oc_output(TIM(STRIP_TIMER), TIM_OC(STRIP_G_CH)); // enable PWM output
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timer_set_oc_value(TIM(STRIP_TIMER), TIM_OC(STRIP_G_CH), 0); // disable light
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// blue channel
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timer_set_oc_mode(TIM(STRIP_TIMER), TIM_OC(STRIP_B_CH), TIM_OCM_PWM1); // set output to PWM mode
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timer_enable_oc_output(TIM(STRIP_TIMER), TIM_OC(STRIP_B_CH)); // enable PWM output
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timer_set_oc_value(TIM(STRIP_TIMER), TIM_OC(STRIP_B_CH), 0); // disable light
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// white channel
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timer_set_oc_mode(TIM(STRIP_TIMER), TIM_OC(STRIP_W_CH), TIM_OCM_PWM1); // set output to PWM mode
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timer_enable_oc_output(TIM(STRIP_TIMER), TIM_OC(STRIP_W_CH)); // enable PWM output
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timer_set_oc_value(TIM(STRIP_TIMER), TIM_OC(STRIP_W_CH), 0); // disable light
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timer_enable_counter(TIM(STRIP_TIMER)); // enable timer to generate PWM
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/*
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// use comparator to time signal (without using the output), starting at slot start
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timer_clear_flag(TIM(ONEWIRE_MASTER_TIMER), TIM_SR_CC1IF); // clear flag
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timer_set_oc_value(TIM(ONEWIRE_MASTER_TIMER), TIM_OC1, 1 * (rcc_ahb_frequency / 1000000) - 1); // use compare function to time master pulling low when reading (1 < Tlowr < 15)
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timer_clear_flag(TIM(ONEWIRE_MASTER_TIMER), TIM_SR_CC2IF); // clear flag
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timer_set_oc_value(TIM(ONEWIRE_MASTER_TIMER), TIM_OC2, 7 * (rcc_ahb_frequency / 1000000) - 1); // use compare function to read or write 0 or 1 (1 < Trw < 15)
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timer_clear_flag(TIM(ONEWIRE_MASTER_TIMER), TIM_SR_CC3IF); // clear flag
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timer_set_oc_value(TIM(ONEWIRE_MASTER_TIMER), TIM_OC3, 62 * (rcc_ahb_frequency / 1000000) - 1); // use compare function to end time slot (60 < Tslot < 120), this will be followed by a recovery time (end of timer)
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timer_clear_flag(TIM(ONEWIRE_MASTER_TIMER), TIM_SR_CC4IF); // clear flag
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timer_set_oc_value(TIM(ONEWIRE_MASTER_TIMER), TIM_OC4, (70 - 10) * (rcc_ahb_frequency / 1000000) - 1); // use compare function to detect slave presence (15 < Tpdh < 60 + 60 < Tpdl < 240), with hand tuning
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timer_clear_flag(TIM(ONEWIRE_MASTER_TIMER), TIM_SR_UIF); // clear update (overflow) flag
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timer_update_on_overflow(TIM(ONEWIRE_MASTER_TIMER)); // only use counter overflow as UEV source (use overflow as start time or timeout)
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timer_enable_irq(TIM(ONEWIRE_MASTER_TIMER), TIM_DIER_UIE); // enable update interrupt for overflow
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*/
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puts_debug("OK\n");
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// setup terminal
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terminal_prefix = ""; // set default prefix
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terminal_process = &process_command; // set central function to process commands
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@ -904,6 +1100,7 @@ void main(void)
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} else {
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scroll_pos -= 1;
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}
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strip_rgbw(0, 0, 0, (64 - scroll_pos) * 100);
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}
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if (second_flag) { // one second passed
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second_flag = false; // clear flag
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