Mercurial > public > ostc4
annotate Small_CPU/Src/i2c.c @ 104:22a1094545f3 kittz
Tested and alive.
| author | Dmitry Romanov <kitt@bk.ru> |
|---|---|
| date | Mon, 24 Dec 2018 16:15:02 +0300 |
| parents | b364c75005bb |
| children | e9cce686fe41 |
| rev | line source |
|---|---|
| 38 | 1 #include "baseCPU2.h" |
| 2 #include "i2c.h" | |
| 3 #include "scheduler.h" | |
| 4 | |
| 5 /* Private typedef -----------------------------------------------------------*/ | |
| 6 /* Private define ------------------------------------------------------------*/ | |
| 7 /* Private macro -------------------------------------------------------------*/ | |
| 8 | |
| 9 | |
| 10 // =============================================================================== | |
| 11 // I2C addresses - see i2c.h | |
| 12 /// | |
| 13 /// #define DEVICE_PRESSURE 0xEE (0x77) Write 0xEE Read 0xEF | |
| 14 /// #define DEVICE_COMPASS_HMC5883L 0x3C (0x1E) Write 0x3C Read 0x3D | |
| 15 /// #define DEVICE_ACCELARATOR_MMA8452Q 0x38 (0x1C) Write 0x38 Read 0x39 | |
| 16 /// #define DEVICE_BATTERYGAUGE 0xC8 (0x64) Write 0xC8 | |
| 17 | |
| 18 /// #define DEVICE_COMPASS_303D 0x3C // 0x1E // x0011110 // SA0 to GND | |
| 19 /// | |
| 20 /// 0x6E 0x48 -> 0x6F 3d d1 86 3f 0x66 58 | |
| 21 /// | |
| 22 // =============================================================================== | |
| 23 I2C_HandleTypeDef I2cHandle; | |
| 24 | |
| 25 | |
| 26 /* | |
| 27 static void I2C_Error_Handler(void) | |
| 28 { | |
| 29 while(1) | |
| 30 { | |
| 31 } | |
| 32 } | |
| 33 */ | |
| 34 | |
| 35 HAL_StatusTypeDef I2C1_Status(void) | |
| 36 { | |
| 37 return (HAL_StatusTypeDef)global.I2C_SystemStatus; | |
| 38 } | |
| 39 | |
| 40 | |
| 41 GPIO_PinState HAL_I2C_Read_Data_PIN(void) | |
| 42 { | |
| 43 return HAL_GPIO_ReadPin(I2Cx_SDA_GPIO_PORT,I2Cx_SDA_PIN); | |
| 44 } | |
| 45 | |
| 46 void HAL_I2C_Send_One_CLOCK(void) | |
| 47 { | |
| 48 HAL_GPIO_WritePin(I2Cx_SCL_GPIO_PORT, I2Cx_SCL_PIN, GPIO_PIN_RESET); | |
| 49 HAL_Delay(10); | |
| 50 HAL_GPIO_WritePin(I2Cx_SCL_GPIO_PORT, I2Cx_SCL_PIN, GPIO_PIN_SET); | |
| 51 HAL_Delay(10); | |
| 52 } | |
| 53 | |
| 54 GPIO_PinState MX_I2C1_TestAndClear(void) | |
| 55 { | |
| 56 I2C_DeInit(); | |
| 57 HAL_I2C_ManualControl_MspInit(); | |
| 58 for(int i=0; i<9;i++) | |
| 59 { | |
| 60 if(HAL_I2C_Read_Data_PIN() == GPIO_PIN_RESET) | |
| 61 HAL_I2C_Send_One_CLOCK(); | |
| 62 else | |
| 63 break; | |
| 64 } | |
| 65 return HAL_I2C_Read_Data_PIN(); | |
| 66 } | |
| 67 | |
| 68 HAL_StatusTypeDef MX_I2C1_Init(void) | |
| 69 { | |
| 70 I2cHandle.Instance = I2Cx; | |
| 71 I2cHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; | |
| 104 | 72 I2cHandle.Init.ClockSpeed = 100000;//400000; REDUCED for compatibility with HMC5583L + MMA8452Q |
| 38 | 73 I2cHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; |
| 104 | 74 I2cHandle.Init.DutyCycle = I2C_DUTYCYCLE_2; |
| 38 | 75 I2cHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; |
| 76 I2cHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; | |
| 77 I2cHandle.Init.OwnAddress1 = 0x01; | |
| 78 | |
| 88 | 79 global.dataSendToSlaveStopEval = 1; |
| 38 | 80 |
| 81 global.I2C_SystemStatus = HAL_I2C_Init(&I2cHandle); | |
| 82 | 82 HAL_I2CEx_AnalogFilter_Config(&I2cHandle, I2C_ANALOGFILTER_ENABLED); |
| 100 | 83 HAL_I2CEx_ConfigDigitalFilter(&I2cHandle,0x0F); |
| 84 | |
| 82 | 85 |
| 38 | 86 |
| 88 | 87 global.dataSendToSlaveStopEval = 0; |
| 100 | 88 if(global.dataSendToSlavePending) |
| 89 { | |
| 90 scheduleSpecial_Evaluate_DataSendToSlave(); | |
| 91 } | |
| 38 | 92 return (HAL_StatusTypeDef)global.I2C_SystemStatus; |
| 93 } | |
| 94 | |
| 95 | |
| 96 void I2C_DeInit(void) | |
| 97 { | |
| 98 HAL_I2C_DeInit(&I2cHandle); | |
| 99 } | |
| 100 | |
| 101 | |
| 102 uint8_t i2c_errors = 0; | |
| 103 | |
| 104 void I2C_Error_count(void) | |
| 105 { | |
| 106 i2c_errors++; | |
| 107 } | |
| 108 | |
| 109 | |
| 110 HAL_StatusTypeDef I2C_Master_TransmitNoStop( uint16_t DevAddress, uint8_t *pData, uint16_t Size) | |
| 111 { | |
| 112 if(global.I2C_SystemStatus != HAL_OK) | |
| 113 return (HAL_StatusTypeDef)global.I2C_SystemStatus; | |
| 114 | |
| 88 | 115 global.dataSendToSlaveStopEval = 1; |
| 38 | 116 |
| 117 global.I2C_SystemStatus = HAL_I2C_Master_Transmit(&I2cHandle, DevAddress, pData, Size, 100 /*FIXME , 0*/); | |
| 118 if(global.I2C_SystemStatus != HAL_OK) | |
| 119 { | |
| 120 I2C_Error_count(); | |
| 121 } | |
| 88 | 122 global.dataSendToSlaveStopEval = 0; |
| 104 | 123 //TODO: REMOVE. |
| 100 | 124 // if(global.dataSendToSlavePending) |
| 125 // { | |
| 126 // scheduleSpecial_Evaluate_DataSendToSlave(); | |
| 127 // } | |
| 38 | 128 return (HAL_StatusTypeDef)global.I2C_SystemStatus; |
| 129 } | |
| 130 | |
| 131 | |
| 132 HAL_StatusTypeDef I2C_Master_Transmit( uint16_t DevAddress, uint8_t *pData, uint16_t Size) | |
| 133 { | |
| 134 if(global.I2C_SystemStatus != HAL_OK) | |
| 135 return (HAL_StatusTypeDef)(global.I2C_SystemStatus & 0x03); | |
| 136 | |
| 137 | |
| 88 | 138 global.dataSendToSlaveStopEval = 1; |
| 38 | 139 |
| 104 | 140 global.I2C_SystemStatus = HAL_I2C_Master_Transmit(&I2cHandle, DevAddress, pData, Size,100 /*FIXME , 1*/); |
| 38 | 141 if(global.I2C_SystemStatus != HAL_OK) |
| 142 { | |
| 143 I2C_Error_count(); | |
| 144 } | |
| 145 | |
| 88 | 146 global.dataSendToSlaveStopEval = 0; |
| 104 | 147 //TODO: REMOVE. |
| 100 | 148 // if(global.dataSendToSlavePending) |
| 149 // { | |
| 150 // scheduleSpecial_Evaluate_DataSendToSlave(); | |
| 151 // } | |
| 88 | 152 |
| 38 | 153 return (HAL_StatusTypeDef)global.I2C_SystemStatus; |
| 154 } | |
| 155 | |
| 156 | |
| 157 HAL_StatusTypeDef I2C_Master_Receive( uint16_t DevAddress, uint8_t *pData, uint16_t Size) | |
| 158 { | |
| 159 if(global.I2C_SystemStatus != HAL_OK) | |
| 160 return (HAL_StatusTypeDef)global.I2C_SystemStatus; | |
| 161 | |
| 162 uint8_t localHALstatusReturn = 0xFF; | |
| 163 | |
| 88 | 164 global.dataSendToSlaveStopEval = 1; |
| 38 | 165 |
| 104 | 166 localHALstatusReturn = HAL_I2C_Master_Receive(&I2cHandle, DevAddress, pData, Size, 10); |
| 38 | 167 if(localHALstatusReturn != HAL_OK) |
| 168 { | |
| 169 I2C_Error_count(); | |
| 170 } | |
| 171 | |
| 88 | 172 global.dataSendToSlaveStopEval = 0; |
| 104 | 173 //TODO: REMOVE. |
|
94
c6d284ea265b
reduce i2c speed and dutycycle for compass stability
Dmitry Romanov <kitt@bk.ru>
parents:
88
diff
changeset
|
174 // if(global.dataSendToSlavePending) |
|
c6d284ea265b
reduce i2c speed and dutycycle for compass stability
Dmitry Romanov <kitt@bk.ru>
parents:
88
diff
changeset
|
175 // { |
| 100 | 176 // scheduleSpecial_Evaluate_DataSendToSlave(); |
|
94
c6d284ea265b
reduce i2c speed and dutycycle for compass stability
Dmitry Romanov <kitt@bk.ru>
parents:
88
diff
changeset
|
177 // } |
| 100 | 178 |
| 38 | 179 return (HAL_StatusTypeDef)localHALstatusReturn; |
| 180 } | |
| 181 |