diff options
Diffstat (limited to 'source/Core/BSP/Miniware/Software_I2C.h')
| -rw-r--r-- | source/Core/BSP/Miniware/Software_I2C.h | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/source/Core/BSP/Miniware/Software_I2C.h b/source/Core/BSP/Miniware/Software_I2C.h index 5b2924ab..3b40f517 100644 --- a/source/Core/BSP/Miniware/Software_I2C.h +++ b/source/Core/BSP/Miniware/Software_I2C.h @@ -10,22 +10,34 @@ #include "BSP.h"
#include "configuration.h"
#include "stm32f1xx_hal.h"
-#ifdef I2C_SOFT
-
-#define SOFT_SCL_HIGH() HAL_GPIO_WritePin(SCL2_GPIO_Port, SCL2_Pin, GPIO_PIN_SET)
-#define SOFT_SCL_LOW() HAL_GPIO_WritePin(SCL2_GPIO_Port, SCL2_Pin, GPIO_PIN_RESET)
-#define SOFT_SDA_HIGH() HAL_GPIO_WritePin(SDA2_GPIO_Port, SDA2_Pin, GPIO_PIN_SET)
-#define SOFT_SDA_LOW() HAL_GPIO_WritePin(SDA2_GPIO_Port, SDA2_Pin, GPIO_PIN_RESET)
-#define SOFT_SDA_READ() (HAL_GPIO_ReadPin(SDA2_GPIO_Port, SDA2_Pin) == GPIO_PIN_SET ? 1 : 0)
-#define SOFT_SCL_READ() (HAL_GPIO_ReadPin(SCL2_GPIO_Port, SCL2_Pin) == GPIO_PIN_SET ? 1 : 0)
+#ifdef I2C_SOFT_BUS_2
+
+#define SOFT_SCL2_HIGH() HAL_GPIO_WritePin(SCL2_GPIO_Port, SCL2_Pin, GPIO_PIN_SET)
+#define SOFT_SCL2_LOW() HAL_GPIO_WritePin(SCL2_GPIO_Port, SCL2_Pin, GPIO_PIN_RESET)
+#define SOFT_SDA2_HIGH() HAL_GPIO_WritePin(SDA2_GPIO_Port, SDA2_Pin, GPIO_PIN_SET)
+#define SOFT_SDA2_LOW() HAL_GPIO_WritePin(SDA2_GPIO_Port, SDA2_Pin, GPIO_PIN_RESET)
+#define SOFT_SDA2_READ() (HAL_GPIO_ReadPin(SDA2_GPIO_Port, SDA2_Pin) == GPIO_PIN_SET ? 1 : 0)
+#define SOFT_SCL2_READ() (HAL_GPIO_ReadPin(SCL2_GPIO_Port, SCL2_Pin) == GPIO_PIN_SET ? 1 : 0)
+
+#endif
+
+#ifdef I2C_SOFT_BUS_1
+#define SOFT_SCL1_HIGH() HAL_GPIO_WritePin(SCL_GPIO_Port, SCL_Pin, GPIO_PIN_SET)
+#define SOFT_SCL1_LOW() HAL_GPIO_WritePin(SCL_GPIO_Port, SCL_Pin, GPIO_PIN_RESET)
+#define SOFT_SDA1_HIGH() HAL_GPIO_WritePin(SDA_GPIO_Port, SDA_Pin, GPIO_PIN_SET)
+#define SOFT_SDA1_LOW() HAL_GPIO_WritePin(SDA_GPIO_Port, SDA_Pin, GPIO_PIN_RESET)
+#define SOFT_SDA1_READ() (HAL_GPIO_ReadPin(SDA_GPIO_Port, SDA_Pin) == GPIO_PIN_SET ? 1 : 0)
+#define SOFT_SCL1_READ() (HAL_GPIO_ReadPin(SCL_GPIO_Port, SCL_Pin) == GPIO_PIN_SET ? 1 : 0)
+
+#endif
+
#define SOFT_I2C_DELAY() \
{ \
- for (int xx = 0; xx < 15; xx++) { \
+ for (int xx = 0; xx < 10; xx++) { \
asm("nop"); \
} \
}
-#endif
// 40 ~= 100kHz; 15 gives around 250kHz or so which is fast _and_ stable
#endif /* BSP_MINIWARE_SOFTWARE_I2C_H_ */
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