Mercurial > public > ostc4
annotate Small_CPU/Inc/spi.h @ 328:4fe5400567e7 I2C_Improvment
Set I2C speed to 88kHz, use digital filter only and reworked idle clock recovery
The errata describes a possible problem in operation between 88kHz and 100kHz => Set speed as recommended as work around.
Based on reference implementation only one filter should be use. Choice was digital because only drawback is lag of wakeup functionality which is not used
I2C communication may be randomly interrupted e.g. by a RTE reset or firmware update => reworked recovery function to get I2C devices in idle state again (Clk and SDA HIGH)
| author | ideenmodellierer |
|---|---|
| date | Wed, 17 Jul 2019 22:42:15 +0200 |
| parents | b3685fbada3b |
| children |
| rev | line source |
|---|---|
| 38 | 1 /** |
| 2 ****************************************************************************** | |
| 3 * @file spi.h | |
| 4 * @author heinrichs weikamp gmbh | |
| 5 * @version V0.0.1 | |
| 6 * @date 16-Sept-2014 | |
| 7 * @brief Header file for spi control | |
| 8 ****************************************************************************** | |
| 9 * @attention | |
| 10 * | |
| 11 * <h2><center>© COPYRIGHT(c) 2014 heinrichs weikamp</center></h2> | |
| 12 * | |
| 13 ****************************************************************************** | |
| 14 */ | |
| 15 | |
| 16 /* Define to prevent recursive inclusion -------------------------------------*/ | |
| 17 #ifndef SPI_H | |
| 18 #define SPI_H | |
| 19 | |
| 20 #ifdef __cplusplus | |
| 21 extern "C" { | |
| 22 #endif | |
| 23 | |
| 24 /* Includes ------------------------------------------------------------------*/ | |
| 25 #include "stm32f4xx_hal.h" | |
| 26 | |
| 27 extern SPI_HandleTypeDef hspi1; | |
| 28 | |
| 29 void MX_SPI1_Init(void); | |
| 30 //void SPI_Start_single_TxRx_with_Master_and_Stop_ChipSelectControl(void); | |
| 31 void SPI_Start_single_TxRx_with_Master(void); | |
| 32 void SPI_synchronize_with_Master(void); | |
|
264
b3685fbada3b
Sync to Main 100ms time stamp & added Reinitialization of globals after startup
ideenmodellierer
parents:
184
diff
changeset
|
33 uint8_t SPI_Evaluate_RX_Data(void); /*process the data received during last 100ms cycle */ |
| 184 | 34 |
| 38 | 35 void MX_SPI_DeInit(void); |
| 36 | |
| 37 /* button adjust */ | |
| 38 void MX_SPI3_Init(void); | |
| 39 void MX_SPI3_DeInit(void); | |
| 40 uint8_t SPI3_ButtonAdjust(uint8_t *arrayInput, uint8_t *arrayOutput); | |
| 104 | 41 void MX_SPI_DeInit(void); |
| 42 | |
| 43 | |
| 38 | 44 #ifdef __cplusplus |
| 45 } | |
| 46 #endif | |
| 47 #endif /* SPI_H */ | |
| 48 | |
| 49 /** | |
| 50 * @} | |
| 51 */ | |
| 52 | |
| 53 /** | |
| 54 * @} | |
| 55 */ | |
| 56 | |
| 57 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |