diff options
Diffstat (limited to 'driver_fw/i2c.h')
| -rw-r--r-- | driver_fw/i2c.h | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/driver_fw/i2c.h b/driver_fw/i2c.h deleted file mode 100644 index 4df7750..0000000 --- a/driver_fw/i2c.h +++ /dev/null @@ -1,107 +0,0 @@ -#ifndef __I2C_H
-#define __I2C_H
-
-#include "global.h"
-
-// Definitions of I2C analog filter state
-#define I2C_AF_ENABLE ((uint32_t)0x00000000U) // Analog filter is enabled
-#define I2C_AF_DISABLE I2C_CR1_ANFOFF // Analog filter is disabled
-
-// Flags definitions for transmit function
-#define I2C_TX_STOP ((uint32_t)0x00000000U) // Generate STOP condition
-#define I2C_TX_NOSTOP ((uint32_t)0x10000000U) // Don't generate STOP condition
-#define I2C_TX_NOSTART ((uint32_t)0x20000000U) // Don't generate START condition
-#define I2C_TX_CONT ((uint32_t)0x40000000U) // The transmission will be continued
-// Definitions for compatibility with old code using this library
-#define I2C_GENSTOP_YES I2C_TX_STOP
-#define I2C_GENSTOP_NO I2C_TX_NOSTOP
-
-// Definition of bits to reset in CR2 register
-#define I2C_CR2_ALL (I2C_CR2_SADD | \
- I2C_CR2_NBYTES | \
- I2C_CR2_RELOAD | \
- I2C_CR2_AUTOEND | \
- I2C_CR2_RD_WRN | \
- I2C_CR2_START | \
- I2C_CR2_STOP)
-
-// Definition of all bits in ICR register (clear all I2C flags at once)
-#define I2C_ICR_ALL (I2C_ICR_ADDRCF | \
- I2C_ICR_ALERTCF | \
- I2C_ICR_ARLOCF | \
- I2C_ICR_BERRCF | \
- I2C_ICR_NACKCF | \
- I2C_ICR_OVRCF | \
- I2C_ICR_PECCF | \
- I2C_ICR_STOPCF | \
- I2C_ICR_TIMOUTCF)
-
-
-// Result of I2C functions
-typedef enum {
- I2C_ERROR = 0,
- I2C_SUCCESS = !I2C_ERROR
-} I2CSTATUS;
-
-
-// Public functions and macros
-
-// Enable I2C peripheral
-// input:
-// I2Cx - pointer to the I2C peripheral (I2C1, etc.)
-static inline void i2c_enable(I2C_TypeDef* I2Cx) {
- I2Cx->CR1 |= I2C_CR1_PE;
-}
-
-// Disable I2C peripheral
-// input:
-// I2Cx - pointer to the I2C peripheral (I2C1, etc.)
-static inline void i2c_disable(I2C_TypeDef* I2Cx) {
- I2Cx->CR1 &= ~I2C_CR1_PE;
-}
-
-// Configure I2C noise filters
-// input:
-// I2Cx - pointer to the I2C peripheral (I2C1, etc.)
-// af - analog filter state, I2C_AF_DISABLE or I2C_AF_ENABLE
-// df - digital filter configuration, can be a value in range from 0 to 15
-// zero value means the digital filter is disabled
-// this values means filtering capability up to (df * ti2cclk)
-// note: must be called only when I2C is disabled (PE bit in I2C_CR1 register is reset)
-static inline void i2c_config_filters(I2C_TypeDef* I2Cx, uint32_t af, uint32_t df) {
- I2Cx->CR1 &= ~(I2C_CR1_ANFOFF | I2C_CR1_DNF);
- I2Cx->CR1 |= (af & I2C_CR1_ANFOFF) | ((df << I2C_CR1_DNF_Pos) & I2C_CR1_DNF);
-}
-
-// Configure the I2C timings (SDA setup/hold time and SCL high/low period)
-// input:
-// I2Cx - pointer to the I2C peripheral (I2C1, etc.)
-// timing - the value for I2C_TIMINGR register
-// note: must be called only when I2C is disabled (PE bit in I2C_CR1 register is reset)
-static inline void i2c_config_timing(I2C_TypeDef* I2Cx, uint32_t timing) {
- I2Cx->TIMINGR = timing;
-}
-
-// Generate START condition
-// input:
-// I2Cx - pointer to the I2C peripheral (I2C1, etc.)
-// addr - I2C device address
-// note: 7-bit addressing mode
-static inline void i2c_genstart(I2C_TypeDef* I2Cx, uint32_t addr) {
- I2Cx->CR2 = (addr & I2C_CR2_SADD) | I2C_CR2_START | I2C_CR2_AUTOEND;
-}
-
-// Generate STOP condition
-// input:
-// I2Cx - pointer to the I2C peripheral (I2C1, etc.)
-static inline void i2c_genstop(I2C_TypeDef* I2Cx) {
- I2Cx->CR2 |= I2C_CR2_STOP;
-}
-
-
-// Function prototypes
-I2CSTATUS i2c_is_device_ready(I2C_TypeDef* I2Cx, uint8_t devAddr, uint32_t Trials);
-I2CSTATUS i2c_transmit(I2C_TypeDef* I2Cx, const uint8_t *pBuf, uint32_t nbytes, uint8_t devAddr, uint32_t flags);
-I2CSTATUS i2c_receive(I2C_TypeDef* I2Cx, uint8_t *pBuf, uint32_t nbytes, uint8_t devAddr);
-
-#endif // __I2C_H
|