git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@5419 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 166 insertions, 0 deletions

diff --git a/testhal/STM32F37x/SPI/main.c b/testhal/STM32F37x/SPI/main.c
new file mode 100644
index 000000000..9cb02763d
--- /dev/null
+++ b/testhal/STM32F37x/SPI/main.c
@@ -0,0 +1,166 @@
+/*

+    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,

+                 2011,2012,2013 Giovanni Di Sirio.

+

+    This file is part of ChibiOS/RT.

+

+    ChibiOS/RT is free software; you can redistribute it and/or modify

+    it under the terms of the GNU General Public License as published by

+    the Free Software Foundation; either version 3 of the License, or

+    (at your option) any later version.

+

+    ChibiOS/RT is distributed in the hope that it will be useful,

+    but WITHOUT ANY WARRANTY; without even the implied warranty of

+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+    GNU General Public License for more details.

+

+    You should have received a copy of the GNU General Public License

+    along with this program.  If not, see <http://www.gnu.org/licenses/>.

+*/

+

+#include "ch.h"

+#include "hal.h"

+

+/*

+ * Maximum speed SPI configuration (18MHz, CPHA=0, CPOL=0, MSb first).

+ */

+static const SPIConfig hs_spicfg = {

+  NULL,

+  GPIOB,

+  12,

+  0,

+  SPI_CR2_DS_2 | SPI_CR2_DS_1 | SPI_CR2_DS_0

+};

+

+/*

+ * Low speed SPI configuration (140.625kHz, CPHA=0, CPOL=0, MSb first).

+ */

+static const SPIConfig ls_spicfg = {

+  NULL,

+  GPIOB,

+  12,

+  SPI_CR1_BR_2 | SPI_CR1_BR_1,

+  SPI_CR2_DS_2 | SPI_CR2_DS_1 | SPI_CR2_DS_0

+};

+

+/*

+ * SPI TX and RX buffers.

+ */

+static uint8_t txbuf[512];

+static uint8_t rxbuf[512];

+

+/*

+ * SPI bus contender 1.

+ */

+static WORKING_AREA(spi_thread_1_wa, 256);

+static msg_t spi_thread_1(void *p) {

+

+  (void)p;

+  chRegSetThreadName("SPI thread 1");

+  while (TRUE) {

+    spiAcquireBus(&SPID2);              /* Acquire ownership of the bus.    */

+    palSetPad(GPIOC, GPIOC_LED2);       /* LED ON.                          */

+    spiStart(&SPID2, &hs_spicfg);       /* Setup transfer parameters.       */

+    spiSelect(&SPID2);                  /* Slave Select assertion.          */

+    spiExchange(&SPID2, 512,

+                txbuf, rxbuf);          /* Atomic transfer operations.      */

+    spiUnselect(&SPID2);                /* Slave Select de-assertion.       */

+    spiReleaseBus(&SPID2);              /* Ownership release.               */

+  }

+  return 0;

+}

+

+/*

+ * SPI bus contender 2.

+ */

+static WORKING_AREA(spi_thread_2_wa, 256);

+static msg_t spi_thread_2(void *p) {

+

+  (void)p;

+  chRegSetThreadName("SPI thread 2");

+  while (TRUE) {

+    spiAcquireBus(&SPID2);              /* Acquire ownership of the bus.    */

+    palClearPad(GPIOC, GPIOC_LED2);     /* LED OFF.                         */

+    spiStart(&SPID2, &ls_spicfg);       /* Setup transfer parameters.       */

+    spiSelect(&SPID2);                  /* Slave Select assertion.          */

+    spiExchange(&SPID2, 512,

+                txbuf, rxbuf);          /* Atomic transfer operations.      */

+    spiUnselect(&SPID2);                /* Slave Select de-assertion.       */

+    spiReleaseBus(&SPID2);              /* Ownership release.               */

+  }

+  return 0;

+}

+/*

+ * This is a periodic thread that does absolutely nothing except flashing

+ * a LED.

+ */

+static WORKING_AREA(blinker_wa, 128);

+static msg_t blinker(void *arg) {

+

+  (void)arg;

+  chRegSetThreadName("blinker");

+  while (TRUE) {

+    palSetPad(GPIOC, GPIOC_LED1);

+    chThdSleepMilliseconds(500);

+    palClearPad(GPIOC, GPIOC_LED1);

+    chThdSleepMilliseconds(500);

+  }

+}

+

+/*

+ * Application entry point.

+ */

+int main(void) {

+  unsigned i;

+

+  /*

+   * 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();

+

+  /*

+   * SPI2 I/O pins setup.

+   */

+  palSetPadMode(GPIOB, 13, PAL_MODE_ALTERNATE(5) |

+                           PAL_STM32_OSPEED_HIGHEST);       /* New SCK.     */

+  palSetPadMode(GPIOB, 14, PAL_MODE_ALTERNATE(5) |

+                           PAL_STM32_OSPEED_HIGHEST);       /* New MISO.    */

+  palSetPadMode(GPIOB, 15, PAL_MODE_ALTERNATE(5) |

+                           PAL_STM32_OSPEED_HIGHEST);       /* New MOSI.    */

+  palSetPadMode(GPIOB, 12, PAL_MODE_OUTPUT_PUSHPULL |

+                           PAL_STM32_OSPEED_HIGHEST);       /* New CS.      */

+  palSetPad(GPIOB, 12);

+

+  /*

+   * Prepare transmit pattern.

+   */

+  for (i = 0; i < sizeof(txbuf); i++)

+    txbuf[i] = (uint8_t)i;

+

+  /*

+   * Starting the transmitter and receiver threads.

+   */

+  chThdCreateStatic(spi_thread_1_wa, sizeof(spi_thread_1_wa),

+                    NORMALPRIO + 1, spi_thread_1, NULL);

+  chThdCreateStatic(spi_thread_2_wa, sizeof(spi_thread_2_wa),

+                    NORMALPRIO + 1, spi_thread_2, NULL);

+

+  /*

+   * Starting the blinker thread.

+   */

+  chThdCreateStatic(blinker_wa, sizeof(blinker_wa),

+                    NORMALPRIO-1, blinker, NULL);

+

+  /*

+   * Normal main() thread activity, in this demo it does nothing.

+   */

+  while (TRUE) {

+    chThdSleepMilliseconds(500);

+  }

+  return 0;

+}