testing out speakers/noises

keyboards/clueboard60/clueboard60.c

@@ -14,3 +14,165 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include "clueboard60.h"
+#include "ch.h"
+#include "hal.h"
+
+#define DAC_BUFFER_SIZE 360
+
+/*
+ * DAC test buffer (sine wave).
+ */
+static const dacsample_t dac_buffer[DAC_BUFFER_SIZE] = {
+  2047, 2082, 2118, 2154, 2189, 2225, 2260, 2296, 2331, 2367, 2402, 2437,
+  2472, 2507, 2542, 2576, 2611, 2645, 2679, 2713, 2747, 2780, 2813, 2846,
+  2879, 2912, 2944, 2976, 3008, 3039, 3070, 3101, 3131, 3161, 3191, 3221,
+  3250, 3278, 3307, 3335, 3362, 3389, 3416, 3443, 3468, 3494, 3519, 3544,
+  3568, 3591, 3615, 3637, 3660, 3681, 3703, 3723, 3744, 3763, 3782, 3801,
+  3819, 3837, 3854, 3870, 3886, 3902, 3917, 3931, 3944, 3958, 3970, 3982,
+  3993, 4004, 4014, 4024, 4033, 4041, 4049, 4056, 4062, 4068, 4074, 4078,
+  4082, 4086, 4089, 4091, 4092, 4093, 4094, 4093, 4092, 4091, 4089, 4086,
+  4082, 4078, 4074, 4068, 4062, 4056, 4049, 4041, 4033, 4024, 4014, 4004,
+  3993, 3982, 3970, 3958, 3944, 3931, 3917, 3902, 3886, 3870, 3854, 3837,
+  3819, 3801, 3782, 3763, 3744, 3723, 3703, 3681, 3660, 3637, 3615, 3591,
+  3568, 3544, 3519, 3494, 3468, 3443, 3416, 3389, 3362, 3335, 3307, 3278,
+  3250, 3221, 3191, 3161, 3131, 3101, 3070, 3039, 3008, 2976, 2944, 2912,
+  2879, 2846, 2813, 2780, 2747, 2713, 2679, 2645, 2611, 2576, 2542, 2507,
+  2472, 2437, 2402, 2367, 2331, 2296, 2260, 2225, 2189, 2154, 2118, 2082,
+  2047, 2012, 1976, 1940, 1905, 1869, 1834, 1798, 1763, 1727, 1692, 1657,
+  1622, 1587, 1552, 1518, 1483, 1449, 1415, 1381, 1347, 1314, 1281, 1248,
+  1215, 1182, 1150, 1118, 1086, 1055, 1024,  993,  963,  933,  903,  873,
+   844,  816,  787,  759,  732,  705,  678,  651,  626,  600,  575,  550,
+   526,  503,  479,  457,  434,  413,  391,  371,  350,  331,  312,  293,
+   275,  257,  240,  224,  208,  192,  177,  163,  150,  136,  124,  112,
+   101,   90,   80,   70,   61,   53,   45,   38,   32,   26,   20,   16,
+    12,    8,    5,    3,    2,    1,    0,    1,    2,    3,    5,    8,
+    12,   16,   20,   26,   32,   38,   45,   53,   61,   70,   80,   90,
+   101,  112,  124,  136,  150,  163,  177,  192,  208,  224,  240,  257,
+   275,  293,  312,  331,  350,  371,  391,  413,  434,  457,  479,  503,
+   526,  550,  575,  600,  626,  651,  678,  705,  732,  759,  787,  816,
+   844,  873,  903,  933,  963,  993, 1024, 1055, 1086, 1118, 1150, 1182,
+  1215, 1248, 1281, 1314, 1347, 1381, 1415, 1449, 1483, 1518, 1552, 1587,
+  1622, 1657, 1692, 1727, 1763, 1798, 1834, 1869, 1905, 1940, 1976, 2012
+};
+
+/*
+ * DAC streaming callback.
+ */
+size_t nx = 0, ny = 0, nz = 0;
+static void end_cb1(DACDriver *dacp, const dacsample_t *buffer, size_t n) {
+
+  (void)dacp;
+}
+
+
+/*
+ * DAC error callback.
+ */
+static void error_cb1(DACDriver *dacp, dacerror_t err) {
+
+  (void)dacp;
+  (void)err;
+
+  chSysHalt("DAC failure");
+}
+
+
+static void gpt_cb6(GPTDriver *gptp);
+static void gpt_cb7(GPTDriver *gptp);
+
+/*
+ * GPT6 configuration.
+ */
+GPTConfig gpt6cfg1 = {
+  .frequency    = 110U,
+  .callback     = gpt_cb6,
+  .cr2          = TIM_CR2_MMS_1,    /* MMS = 010 = TRGO on Update Event.    */
+  .dier         = 0U
+};
+
+GPTConfig gpt7cfg1 = {
+  .frequency    = 131U,
+  .callback     = gpt_cb7,
+  .cr2          = TIM_CR2_MMS_1,    /* MMS = 010 = TRGO on Update Event.    */
+  .dier         = 0U
+};
+
+static void gpt_cb6(GPTDriver *gptp) {
+    palTogglePad(GPIOA, 4);
+
+  nz++;
+
+  if ((nz % 1000) == 0) {
+    palTogglePad(GPIOB, 7);
+    nz = 0;
+    gpt6cfg1.frequency *= 1.05946;
+    gptStopTimer(&GPTD6);
+
+    gptStart(&GPTD6, &gpt6cfg1);
+    gptStartContinuous(&GPTD6, 2U);
+    
+    gpt7cfg1.frequency *= 1.05946;
+    gptStopTimer(&GPTD7);
+
+    gptStart(&GPTD7, &gpt7cfg1);
+    gptStartContinuous(&GPTD7, 2U);
+  }
+}
+
+static void gpt_cb7(GPTDriver *gptp) {
+    palTogglePad(GPIOA, 5);
+
+  // ny++;
+
+  // if ((ny % 1000) == 0) {
+  //   palTogglePad(GPIOB, 7);
+  //   ny = 0;
+  // }
+}
+
+
+
+
+static const DACConfig dac1cfg1 = {
+  .init         = 2047U,
+  .datamode     = DAC_DHRM_12BIT_RIGHT,
+  // .cr           = 0
+};
+
+static const DACConversionGroup dacgrpcfg1 = {
+  .num_channels = 1U,
+  .end_cb       = end_cb1,
+  .error_cb     = error_cb1,
+  .trigger      = DAC_TRG(0)
+};
+
+
+
+void matrix_init_kb(void) {
+  /*
+   * Starting DAC1 driver, setting up the output pin as analog as suggested
+   * by the Reference Manual.
+   */
+  // palSetPadMode(GPIOA, 4, PAL_MODE_INPUT_ANALOG);
+  palSetPadMode(GPIOA, 4, PAL_MODE_OUTPUT_PUSHPULL);
+  palSetPadMode(GPIOA, 5, PAL_MODE_OUTPUT_PUSHPULL);
+  // dacStart(&DACD1, &dac1cfg1);
+
+  /*
+   * Starting GPT6 driver, it is used for triggering the DAC.
+   */
+  gptStart(&GPTD6, &gpt6cfg1);
+  gptStart(&GPTD7, &gpt7cfg1);
+
+  /*
+   * Starting a continuous conversion.
+   */
+  // dacStartConversion(&DACD1, &dacgrpcfg1,
+                     // (dacsample_t *)dac_buffer, DAC_BUFFER_SIZE);
+  gptStartContinuous(&GPTD6, 2U);  
+  gptStartContinuous(&GPTD7, 2U);
+}
+
+void matrix_scan_kb(void) {
+
+}

keyboards/clueboard60/halconf.h

@@ -55,7 +55,7 @@
  * @brief   Enables the DAC subsystem.
  */
 #if !defined(HAL_USE_DAC) || defined(__DOXYGEN__)
-#define HAL_USE_DAC                 FALSE
+#define HAL_USE_DAC                 TRUE
 #endif
 
 /**
@@ -69,7 +69,7 @@
  * @brief   Enables the GPT subsystem.
  */
 #if !defined(HAL_USE_GPT) || defined(__DOXYGEN__)
-#define HAL_USE_GPT                 FALSE
+#define HAL_USE_GPT                 TRUE
 #endif
 
 /**

keyboards/clueboard60/mcuconf.h

@@ -140,8 +140,8 @@
 #define STM32_GPT_USE_TIM2                  FALSE
 #define STM32_GPT_USE_TIM3                  FALSE
 #define STM32_GPT_USE_TIM4                  FALSE
-#define STM32_GPT_USE_TIM6                  FALSE
-#define STM32_GPT_USE_TIM7                  FALSE
+#define STM32_GPT_USE_TIM6                  TRUE
+#define STM32_GPT_USE_TIM7                  TRUE
 #define STM32_GPT_USE_TIM8                  FALSE
 #define STM32_GPT_TIM1_IRQ_PRIORITY         7
 #define STM32_GPT_TIM2_IRQ_PRIORITY         7

keyboards/clueboard60/rules.mk

@@ -48,4 +48,5 @@ COMMAND_ENABLE = yes    # Commands for debug and configuration
 #SLEEP_LED_ENABLE = yes  # Breathing sleep LED during USB suspend
 NKRO_ENABLE = yes	    # USB Nkey Rollover
 CUSTOM_MATRIX = yes # Custom matrix file
-# SERIAL_LINK_ENABLE = yes
+# AUDIO_ENABLE = yes
+# SERIAL_LINK_ENABLE = yes