[paparazzi-commits] [4720]

[antoine drouin]

Revision: 4720
          http://svn.sv.gnu.org/viewvc/?view=rev&root=paparazzi&revision=4720
Author:   poine
Date:     2010-03-24 10:03:12 +0000 (Wed, 24 Mar 2010)
Log Message:
-----------


Added Paths:
-----------
    paparazzi3/trunk/sw/airborne/lisa/test_spi_slave.c

Added: paparazzi3/trunk/sw/airborne/lisa/test_spi_slave.c
===================================================================
--- paparazzi3/trunk/sw/airborne/lisa/test_spi_slave.c                          
(rev 0)
+++ paparazzi3/trunk/sw/airborne/lisa/test_spi_slave.c  2010-03-24 10:03:12 UTC 
(rev 4720)
@@ -0,0 +1,112 @@
+/*
+ * $Id$
+ *  
+ * Copyright (C) 2009 Antoine Drouin <address@hidden>
+ *
+ * This file is part of paparazzi.
+ *
+ * paparazzi 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 2, or (at your option)
+ * any later version.
+ *
+ * paparazzi 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 paparazzi; see the file COPYING.  If not, write to
+ * the Free Software Foundation, 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA. 
+ */
+
+#include <stm32/flash.h>
+#include <stm32/misc.h>
+#include <stm32/spi.h>
+
+#include BOARD_CONFIG
+#include "init_hw.h"
+#include "sys_time.h"
+
+static inline void main_init( void );
+static inline void main_periodic_task( void );
+static inline void main_event_task( void );
+
+static inline void main_spi_slave_init( void );
+
+
+int main(void) {
+  main_init();
+
+  while(1) {
+    if (sys_time_periodic())
+      main_periodic_task();
+    main_event_task();
+  }
+
+  return 0;
+}
+
+
+static inline void main_init( void ) {
+  hw_init();
+  sys_time_init();
+  main_spi_slave_init();
+}
+
+static inline void main_periodic_task( void ) {
+
+
+}
+
+static inline void main_event_task( void ) {
+
+}
+
+
+static inline void main_spi_slave_init( void ) {
+
+  /* Enable SPI1 Periph clock 
-------------------------------------------------*/
+  RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
+  
+  /* Configure GPIOs: SCK, MISO and MOSI  
-------------------------------------*/
+  GPIO_InitTypeDef GPIO_InitStructure;
+  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
+  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+  GPIO_Init(GPIOA, &GPIO_InitStructure);
+
+  /* Configure the nested vectored interrupt controller. 
----------------------*/
+  NVIC_InitTypeDef NVIC_InitStructure;
+  /* 1 bit for pre-emption priority, 3 bits for subpriority */
+  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
+  NVIC_InitStructure.NVIC_IRQChannel = SPI1_IRQn;
+  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
+  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
+  NVIC_Init(&NVIC_InitStructure);
+
+  /* SPI_SLAVE configuration 
--------------------------------------------------*/
+  SPI_InitTypeDef SPI_InitStructure;
+  SPI_InitStructure.SPI_Direction = SPI_Direction_1Line_Rx;
+  SPI_InitStructure.SPI_Mode = SPI_Mode_Slave;
+  SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
+  SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
+  SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
+  SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
+  SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4;
+  SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
+  SPI_InitStructure.SPI_CRCPolynomial = 7;
+  SPI_Init(SPI1, &SPI_InitStructure);
+  
+  /* Enable SPI_SLAVE RXNE interrupt */
+  SPI_I2S_ITConfig(SPI1, SPI_I2S_IT_RXNE, ENABLE);
+  /* Enable SPI_SLAVE */
+  SPI_Cmd(SPI1, ENABLE);
+}
+
+void spi1_irq_handler(void) {
+  uint8_t foo = SPI_I2S_ReceiveData(SPI1);
+  LED_TOGGLE(1);
+}
+