removed the first generation crc error handling

sw/airborne/lisa/arch/stm32/lisa_overo_link_arch.h

@@ -4,14 +4,6 @@
 #include <stm32/spi.h>
 
 
-#if 1
-
-/*
- *
- * This is the version that got less tested
- *
- */
-
 #define OveroLinkEvent(_data_received_handler, _crc_failed_handler) {	\
     if (overo_link.status == DATA_AVAILABLE) {	                  /* set by DMA interrupt */ \
       while(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE)==RESET);	\
@@ -47,45 +39,6 @@
   }
 
 
-#else
-
-/*
- *
- * This is the version that works
- *
- */
-
-#define OveroLinkEvent(_data_received_handler, _crc_failed_handler) {	\
-    if (overo_link.status == DATA_AVAILABLE) {				\
-      overo_link.timeout = 0;						\
-      /* FIXME : we should probably add a limit here and do something */ \
-      /* radical in case we exceed it */				\
-      while(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE)==RESET);	\
-      while(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_BSY)==SET);	\
-      uint8_t foo __attribute__ ((unused)) = SPI_I2S_ReceiveData(SPI1);	\
-      if((SPI_I2S_GetFlagStatus(SPI1, SPI_FLAG_CRCERR)) == RESET) {	\
-	LED_TOGGLE(OVERO_LINK_LED_OK);					\
-	LED_OFF(OVERO_LINK_LED_KO);					\
-	_data_received_handler();					\
-      }									\
-      else {								\
-	LED_OFF(OVERO_LINK_LED_OK);					\
-	LED_ON(OVERO_LINK_LED_KO);					\
-	overo_link.crc_err_cnt++;					\
-	_crc_failed_handler();						\
-	/* wait until we're not selected - same thing, we would */	\
-	/* probably want a limit here                           */	\
-	while (!GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_4));		\
-	uint8_t foo2 __attribute__ ((unused)) = SPI_I2S_ReceiveData(SPI1); \
-	violently_reset_spi();						\
-      }									\
-      overo_link.msg_cnt++;						\
-      overo_link_arch_prepare_next_transfert();				\
-      overo_link.status = IDLE;						\
-    }									\
-  }				
-#endif
-
 
 #define violently_reset_spi() {						\
     SPI_Cmd(SPI1, DISABLE);						\