Subversion Repositories EDIS_Ignition

Rev

Rev 13 | Rev 20 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 13 Rev 18
Line 4... Line 4...
4 
typedef struct
 4 
typedef struct
5 
{
 5 
{
6 
  uint8_t dev_addr;
 6 
  uint8_t dev_addr;
7 
} interface_t;
 7 
} interface_t;
8 
 
 8 
 
9 
// interface code
9 
// interface code
10 
/// pointer to I2C hardware
 10 
/// pointer to I2C hardware
11 
static I2C_HandleTypeDef * hi2c;
 11 
static I2C_HandleTypeDef *hi2c;
12 
 
 12 
 
13 
/// @brief  Generic I2C write function
 13 
/// @brief  Generic I2C write function
14 
/// @param i2c_addr I2C address
 14 
/// @param i2c_addr I2C address
15 
/// @param reg_addr I2C register address
 15 
/// @param reg_addr I2C register address
16 
/// @param reg_data pointer to data buffer to send
 16 
/// @param reg_data pointer to data buffer to send
17 
/// @param len  length of data to send
 17 
/// @param len  length of data to send
18 
/// @return
18 
/// @return
19 
static int8_t
 19 
static int8_t
20 
user_i2c_write(uint8_t i2c_addr, uint8_t reg_addr, uint8_t *reg_data,
 20 
user_i2c_write(uint8_t i2c_addr, uint8_t reg_addr, uint8_t *reg_data,
21 
               uint32_t len)
 21 
               uint16_t len)
22 
{
 22 
{
23 
  HAL_StatusTypeDef st = HAL_I2C_Mem_Write(hi2c, i2c_addr << 1, reg_addr, 1,
 23 
  HAL_StatusTypeDef st = HAL_I2C_Mem_Write(hi2c, i2c_addr << 1, reg_addr, 1,
24 
                                           reg_data, len, 1000);
 24 
                                           reg_data, len, 1000);
25 
 
 25 
 
26 
  return st != HAL_OK ? BMP280_E_COMM_FAIL : BMP280_OK;
 26 
  return st != HAL_OK ? BMP280_E_COMM_FAIL : BMP280_OK;
Line 29... Line 29...
29 
/// @brief  Generic I2C read function
 29 
/// @brief  Generic I2C read function
30 
/// @param i2c_addr I2C address
 30 
/// @param i2c_addr I2C address
31 
/// @param reg_addr I2C register address
 31 
/// @param reg_addr I2C register address
32 
/// @param reg_data pointer to data buffer to fill
 32 
/// @param reg_data pointer to data buffer to fill
33 
/// @param len  length of data to receive
 33 
/// @param len  length of data to receive
34 
/// @return
34 
/// @return status code
35 
static int8_t
 35 
static int8_t
36 
user_i2c_read(uint8_t i2c_addr, uint8_t reg_addr, uint8_t *reg_data,
 36 
user_i2c_read(uint8_t i2c_addr,
- 
 
 37 
              uint8_t reg_addr,
- 
 
 38 
              uint8_t *reg_data,
37 
              uint32_t len)
 39 
              uint16_t len)
38 
{
 40 
{
39 
  HAL_StatusTypeDef st = HAL_I2C_Mem_Read(hi2c, i2c_addr << 1, reg_addr, 1,
 41 
  HAL_StatusTypeDef st = HAL_I2C_Mem_Read(hi2c, i2c_addr << 1, reg_addr, 1,
40 
                                          reg_data, len, 1000);
 42 
                                          reg_data, len, 1000);
41 
 
 43 
 
42 
  return st != HAL_OK ? BMP280_E_COMM_FAIL : BMP280_OK;
 44 
  return st != HAL_OK ? BMP280_E_COMM_FAIL : BMP280_OK;
43 
}
 45 
}
44 
 
 46 
 
45 
static void
 47 
static void
46 
user_delay_ms(uint32_t ms, void *handle)
 48 
user_delay_ms(uint32_t ms)
47 
{
 49 
{
48 
  HAL_Delay(ms);
 50 
  HAL_Delay(ms);
49 
}
 51 
}
50 
 
 52 
 
51 
struct bmp280_dev bmp =
 53 
struct bmp280_dev bmp =
Line 56... Line 58...
56 
        .delay_ms = user_delay_ms,
 58 
        .delay_ms = user_delay_ms,
57 
 
 59 
 
58 
        /* Update interface pointer with the structure that contains both device address and file descriptor */
 60 
        /* Update interface pointer with the structure that contains both device address and file descriptor */
59 
        .dev_id = BMP280_I2C_ADDR_PRIM};
 61 
        .dev_id = BMP280_I2C_ADDR_PRIM};
60 
 
 62 
 
61 
 
 - 
 
62 
struct bmp280_config conf;
 63 
struct bmp280_config conf;
63 
 
 64 
 
64 
 
 - 
 
65 
uint8_t init_bmp( I2C_HandleTypeDef * i2c)
 65 
uint8_t init_bmp(I2C_HandleTypeDef *i2c)
66 
{
 66 
{
67 
  // copy the I2c handle over
67 
  // copy the I2c handle over
68 
  hi2c = i2c;
 68 
  hi2c = i2c;
69 
  int8_t rslt = bmp280_init(&bmp);
 69 
  int8_t rslt = bmp280_init(&bmp);
70 
  if (rslt != BMP280_OK)
 70 
  if (rslt != BMP280_OK)
71 
    return rslt;
 71 
    return rslt;
72 
 
 72 
 
73 
  rslt = bmp280_get_config(&conf, &bmp);
 73 
  rslt = bmp280_get_config(&conf, &bmp);
Line 89... Line 89...
89 
  if (rslt != BMP280_OK)
 89 
  if (rslt != BMP280_OK)
90 
    return rslt;
 90 
    return rslt;
91 
 
 91 
 
92 
  /* Always set the power mode after setting the configuration */
 92 
  /* Always set the power mode after setting the configuration */
93 
  rslt = bmp280_set_power_mode(BMP280_NORMAL_MODE, &bmp);
 93 
  rslt = bmp280_set_power_mode(BMP280_NORMAL_MODE, &bmp);
94 
    return rslt;
 94 
  return rslt;
95 
}
 95 
}
96 
 
 - 
 
97 
 
 -