From 37f8ea73a8de75ab93b8732dacada83e352558cc Mon Sep 17 00:00:00 2001
From: isiora <none@example.com>
Date: Sun, 22 Oct 2017 21:48:40 +0000
Subject: Reintegrate sama5d2_dev branch

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@10877 35acf78f-673a-0410-8e92-d51de3d6d3f4
---
 testhal/ATSAMA5D2/SPI/main.c | 117 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 testhal/ATSAMA5D2/SPI/main.c

(limited to 'testhal/ATSAMA5D2/SPI/main.c')

diff --git a/testhal/ATSAMA5D2/SPI/main.c b/testhal/ATSAMA5D2/SPI/main.c
new file mode 100644
index 000000000..e4d5d55cf
--- /dev/null
+++ b/testhal/ATSAMA5D2/SPI/main.c
@@ -0,0 +1,117 @@
+/*
+    ChibiOS - Copyright (C) 2006..2016 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"
+#include "chprintf.h"
+#include "string.h"
+
+#define BUFFER_SIZE  16
+
+static virtual_timer_t vt3;
+static char txbuf[BUFFER_SIZE] = "0123456789ABCDEF";
+static char rxbuf[BUFFER_SIZE];
+
+static void led3off(void *p) {
+
+  (void)p;
+  palSetLine(LINE_LED_RED);
+}
+
+/*
+ * This callback is invoked when a receive buffer has been completely written.
+ */
+static void rxend(SPIDriver *spip) {
+
+  (void)spip;
+
+  palClearLine(LINE_LED_RED);
+  chSysLockFromISR();
+  chVTResetI(&vt3);
+  chVTSetI(&vt3, MS2ST(200), led3off, NULL);
+  chSysUnlockFromISR();
+}
+
+/*
+ * Master SPI configuration (83MHz (MCK/3/2), CPHA=0, CPOL=0, MSb first).
+ */
+static const SPIConfig mst_spicfg = {
+  rxend,                                       /* callback if present */
+  0,                                           /* cs pad number       */
+  SPI_MR_MODFDIS | SPI_MR_MSTR | SPI_MR_LLB,   /* mr register         */
+  SPI_CSR_SCBR(1)                              /* csr                 */
+};
+
+/*
+ * LED blinker thread, times are in milliseconds.
+ */
+static THD_WORKING_AREA(waThread1, 512);
+static THD_FUNCTION(Thread1, arg) {
+
+  (void)arg;
+  chRegSetThreadName("blinker");
+
+  while (true) {
+    palToggleLine(LINE_LED_BLUE);
+    chThdSleepMilliseconds(500);
+  }
+}
+
+/*
+ * 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();
+
+  /*
+   * Activates the serial driver 0 using the driver default configuration.
+   */
+  sdStart(&SD0, NULL);
+  spiStart(&SPID1, &mst_spicfg);       /* Setup transfer parameters.       */
+
+  /* Redirecting  UART0 RX on PB26 and UART0 TX on PB 27. */
+  palSetGroupMode(PIOB, PAL_PORT_BIT(26) | PAL_PORT_BIT(27), 0U,
+                  PAL_SAMA_FUNC_PERIPH_C | PAL_MODE_SECURE);
+
+  /* Redirecting  SPI1 pins. */
+  palSetGroupMode(PIOD, PAL_PORT_BIT(25) | PAL_PORT_BIT(26) |
+                  PAL_PORT_BIT(27) | PAL_PORT_BIT(28) , 0U,
+                  PAL_SAMA_FUNC_PERIPH_A | PAL_MODE_SECURE);
+
+  chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO , Thread1, NULL);
+
+  while (true) {
+    if(!palReadPad(PIOB, PIOB_USER_PB)) {
+      spiExchange(&SPID1, BUFFER_SIZE, &txbuf, &rxbuf);
+      if (!memcmp(txbuf, rxbuf, BUFFER_SIZE)){
+        chprintf((BaseSequentialStream*)&SD0, "Transfer complete\n\r");
+      }
+      else {
+        chprintf((BaseSequentialStream*)&SD0, "ERROR: Buffers are not the same!\n\r");
+      }
+    }
+    chThdSleepMilliseconds(500);
+  }
+}
-- 
cgit v1.2.3