chibiosSPITest.c

/*                                                                              
    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"                                                                
#include "test.h"                                                               
                                                                                
static void spicb(SPIDriver *spip);                                             
                                                                                
static const SPIConfig spicfg = {                                               
  spicb,                                                                        
  GPIOA,                                                                        
  GPIOA_SPI1NSS,                                                                
  SPI_CR1_DFF                                                                   
};                                                                              
                                                                                
static void spicb(SPIDriver *spip) {                                            
  chSysLockFromIsr();                                                           
  spiUnselectI(spip);                                                           
  chSysUnlockFromIsr();                                                         
}                                                                               
                                                                                
                                                                                
static WORKING_AREA(ledBlinkerThreadWA, 32);                                    
static msg_t ledBlinkerThread(void *arg) {                                      
  (void)arg;                                                                    
  //uint32_t spiMessage = 100;                                                  
  char spiMessage[2] = "hi";                                                    
  while (TRUE) {                                                                
    palSetPad(GPIOC, GPIOC_LED4);                                               
    chThdSleepMilliseconds(10);                                                 
    palClearPad(GPIOC, GPIOC_LED4);                                             
    chThdSleepMilliseconds(50);                                                 
    chSysLockFromIsr();                                                         
    spiSelect(&SPID1);                                                          
    spiSend(&SPID1, 6, "Hello world");                                          
    chSysUnlockFromIsr();                                                       
  }

  return (msg_t)0;
}


/*                                                                              
 * 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();                                                                  
                                                                                
  spiStart(&SPID1, &spicfg);                                                    
                                                                                
  palSetGroupMode(GPIOC, GPIOC_LED3 | GPIOC_LED4,                               
                  0,                                                            
                  PAL_MODE_STM32_ALTERNATE_PUSHPULL);                           
                                                                                
  /*                                                                            
   * Creates the example thread.                                                
   */                                                                           
  chThdCreateStatic(ledBlinkerThreadWA, sizeof(ledBlinkerThreadWA), NORMALPRIO, ledBlinkerThread, NULL);
  return 0;                                                                     
}