LPC17xx DAC driver added, DMA lli fixed.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@6737 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 115 insertions, 0 deletions

diff --git a/testhal/LPC17xx/DAC/main.c b/testhal/LPC17xx/DAC/main.c
new file mode 100644
index 000000000..68cf55659
--- /dev/null
+++ b/testhal/LPC17xx/DAC/main.c
@@ -0,0 +1,115 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#include "ch.h"
+#include "hal.h"
+
+#define NSAMPLES    255
+
+const uint32_t sine_wave[NSAMPLES] = {
+ 512 << 6,  524 << 6,  537 << 6,  549 << 6,  562 << 6,  574 << 6,  587 << 6,  599 << 6,  612 << 6,  624 << 6,
+ 636 << 6,  649 << 6,  661 << 6,  673 << 6,  685 << 6,  696 << 6,  708 << 6,  720 << 6,  731 << 6,  743 << 6,
+ 754 << 6,  765 << 6,  776 << 6,  786 << 6,  797 << 6,  807 << 6,  818 << 6,  828 << 6,  837 << 6,  847 << 6,
+ 856 << 6,  866 << 6,  875 << 6,  883 << 6,  892 << 6,  900 << 6,  908 << 6,  916 << 6,  924 << 6,  931 << 6,
+ 938 << 6,  945 << 6,  952 << 6,  958 << 6,  964 << 6,  970 << 6,  975 << 6,  981 << 6,  985 << 6,  990 << 6,
+ 994 << 6,  998 << 6, 1002 << 6, 1006 << 6, 1009 << 6, 1012 << 6, 1014 << 6, 1016 << 6, 1018 << 6, 1020 << 6,
+1021 << 6, 1022 << 6, 1023 << 6, 1023 << 6, 1023 << 6, 1023 << 6, 1023 << 6, 1022 << 6, 1021 << 6, 1019 << 6,
+1017 << 6, 1015 << 6, 1013 << 6, 1010 << 6, 1007 << 6, 1004 << 6, 1000 << 6,  996 << 6,  992 << 6,  988 << 6,
+ 983 << 6,  978 << 6,  973 << 6,  967 << 6,  961 << 6,  955 << 6,  948 << 6,  942 << 6,  935 << 6,  928 << 6,
+ 920 << 6,  912 << 6,  904 << 6,  896 << 6,  888 << 6,  879 << 6,  870 << 6,  861 << 6,  852 << 6,  842 << 6,
+ 832 << 6,  823 << 6,  812 << 6,  802 << 6,  792 << 6,  781 << 6,  770 << 6,  759 << 6,  748 << 6,  737 << 6,
+ 725 << 6,  714 << 6,  702 << 6,  691 << 6,  679 << 6,  667 << 6,  655 << 6,  642 << 6,  630 << 6,  618 << 6,
+ 606 << 6,  593 << 6,  581 << 6,  568 << 6,  556 << 6,  543 << 6,  530 << 6,  518 << 6,  505 << 6,  493 << 6,
+ 480 << 6,  467 << 6,  455 << 6,  442 << 6,  430 << 6,  417 << 6,  405 << 6,  393 << 6,  381 << 6,  368 << 6,
+ 356 << 6,  344 << 6,  332 << 6,  321 << 6,  309 << 6,  298 << 6,  286 << 6,  275 << 6,  264 << 6,  253 << 6,
+ 242 << 6,  231 << 6,  221 << 6,  211 << 6,  200 << 6,  191 << 6,  181 << 6,  171 << 6,  162 << 6,  153 << 6,
+ 144 << 6,  135 << 6,  127 << 6,  119 << 6,  111 << 6,  103 << 6,   95 << 6,   88 << 6,   81 << 6,   75 << 6,
+  68 << 6,   62 << 6,   56 << 6,   50 << 6,   45 << 6,   40 << 6,   35 << 6,   31 << 6,   27 << 6,   23 << 6,
+  19 << 6,   16 << 6,   13 << 6,   10 << 6,    8 << 6,    6 << 6,    4 << 6,    2 << 6,    1 << 6,    0 << 6,
+   0 << 6,    0 << 6,    0 << 6,    0 << 6,    1 << 6,    2 << 6,    3 << 6,    5 << 6,    7 << 6,    9 << 6,
+  11 << 6,   14 << 6,   17 << 6,   21 << 6,   25 << 6,   29 << 6,   33 << 6,   38 << 6,   42 << 6,   48 << 6,
+  53 << 6,   59 << 6,   65 << 6,   71 << 6,   78 << 6,   85 << 6,   92 << 6,   99 << 6,  107 << 6,  115 << 6,
+ 123 << 6,  131 << 6,  140 << 6,  148 << 6,  157 << 6,  167 << 6,  176 << 6,  186 << 6,  195 << 6,  205 << 6,
+ 216 << 6,  226 << 6,  237 << 6,  247 << 6,  258 << 6,  269 << 6,  280 << 6,  292 << 6,  303 << 6,  315 << 6,
+ 327 << 6,  338 << 6,  350 << 6,  362 << 6,  374 << 6,  387 << 6,  399 << 6,  411 << 6,  424 << 6,  436 << 6,
+ 449 << 6,  461 << 6,  474 << 6,  486 << 6,  499 << 6};
+
+/*
+ * Red LEDs blinker thread, times are in milliseconds.
+ */
+static WORKING_AREA(waThread1, 128);
+static msg_t Thread1(void *arg) {
+
+  (void)arg;
+  chRegSetThreadName("blinker");
+  while (TRUE) {
+    palTogglePad(GPIO0, GPIO0_LED2_RED);
+    chThdSleepMilliseconds(500);
+  }
+}
+
+/*
+ * DAC conversion groups, with callbacks.
+ */
+static const DACConversionGroup dacconvgrp1 = {
+  1, /* Channels */
+  NULL, /* End of transfer callback */
+  NULL, /* Error callback */
+  true /*circular mode */
+};
+
+/*
+ * DAC config
+ */
+static const DACConfig daccfg1 = {
+  1000*NSAMPLES, /* Multiply the buffer size to the desired frequency in Hz */
+};
+
+/*
+ * Application entry point.
+ */
+int main(void) {
+  /*
+   * System initializations.
+   * - HAL initialization, this also initializes the configured device drivers
+   *   and performs the board-specific initializations.
+   * - Kernel initialization, the main() function becomes a thread and the
+   *   RTOS is active.
+   */
+  halInit();
+  chSysInit();
+
+  /*
+   * Creates the blinker thread.
+   */
+  chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
+
+  /*
+   * Starting the DAC driver.
+   */
+  dacStart(&DACD1, &daccfg1);
+
+  /*
+   * Sending the dac_buffer
+   */
+  dacStartConversion(&DACD1, &dacconvgrp1, sine_wave, NSAMPLES);
+
+  while (TRUE) {
+
+  chThdSleepMilliseconds(1000);
+
+  }
+}