view Small_CPU/Inc/spi.h @ 319:d8e86af78474 fix-version

bugfix: correct packed main version number in dive header This fixes a rather mysterious bug. Users report that up to 1.3.5 beta, a correct version number is shown in libdivecomputer based applications (like in Subsurface, in the extra data tab). Careful examining the code in both libdivecomputer and the firmware shows a subtle error in the bit mask and shift operation to pack a full X.Y.Z.beta version number in 2 bytes (as is available in the dive header) in the firmware end (as the libdivecomputer code looks sane, assuming this is the right way to pack things). Likely, this bug crept in in the conversion from the closed source Keil period into the open source GCC setup of the code base. So its impossible to document the exact history of this problem here. Further notice that the main version number is only 1 of 3 version numbers, denoting the full version of the firmware (besides Font and RTE). Finally notice that this way of packing is limited to 2^5 bits (decimal 32), so we could easily build a 1.4.21, but not a 1.4.55. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Wed, 19 Jun 2019 14:31:50 +0200
parents b3685fbada3b
children
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/**
  ******************************************************************************
  * @file    spi.h
  * @author  heinrichs weikamp gmbh
  * @version V0.0.1
  * @date    16-Sept-2014
  * @brief   Header file for spi control
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2014 heinrichs weikamp</center></h2>
  *
  ******************************************************************************
  */ 

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef SPI_H
#define SPI_H

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal.h"

extern SPI_HandleTypeDef hspi1;

void MX_SPI1_Init(void);
//void SPI_Start_single_TxRx_with_Master_and_Stop_ChipSelectControl(void);
void SPI_Start_single_TxRx_with_Master(void);
void SPI_synchronize_with_Master(void);
uint8_t SPI_Evaluate_RX_Data(void); /*process the data received during last 100ms cycle */

void MX_SPI_DeInit(void);

	 /* button adjust */
void MX_SPI3_Init(void);
void MX_SPI3_DeInit(void);
uint8_t SPI3_ButtonAdjust(uint8_t *arrayInput, uint8_t *arrayOutput);
void MX_SPI_DeInit(void);


#ifdef __cplusplus
}
#endif
#endif /* SPI_H */

/**
  * @}
  */

/**
  * @}
  */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/