Mercurial > public > ostc4
annotate Small_CPU/Src/i2c.c @ 307:b6436edfb2c0 cleanup-4
cleanup: factor out unused stopwatch code
Visually, this looks a bit of a dangerous cleanup, but its not :-)
To explain this cleanup: stopwatch_seconds is never used, so assign
to it is useless, and the variable can be removed. Now,
stopwatch_start_at_this_dive_time_seconds is not used any more, so
remove it as well. Now, look at the boolResetStopwatch code. It
is used but only to reset itself. This makes the whole stopwatch
block in data_exchange_main.c a useless thing. All the other
cleanup is trivial.
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
| author | Jan Mulder <jlmulder@xs4all.nl> |
|---|---|
| date | Wed, 22 May 2019 22:22:15 +0200 |
| parents | 2b9775f71e30 |
| children | 4fe5400567e7 |
| 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 | |
|
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12 // =============================================================================== |
| 38 | 13 |
| 14 I2C_HandleTypeDef I2cHandle; | |
| 15 | |
| 16 | |
| 17 /* | |
| 18 static void I2C_Error_Handler(void) | |
| 19 { | |
| 20 while(1) | |
| 21 { | |
| 22 } | |
| 23 } | |
| 24 */ | |
| 25 | |
| 26 GPIO_PinState HAL_I2C_Read_Data_PIN(void) | |
| 27 { | |
| 28 return HAL_GPIO_ReadPin(I2Cx_SDA_GPIO_PORT,I2Cx_SDA_PIN); | |
| 29 } | |
| 30 | |
| 31 void HAL_I2C_Send_One_CLOCK(void) | |
| 32 { | |
| 33 HAL_GPIO_WritePin(I2Cx_SCL_GPIO_PORT, I2Cx_SCL_PIN, GPIO_PIN_RESET); | |
| 34 HAL_Delay(10); | |
| 35 HAL_GPIO_WritePin(I2Cx_SCL_GPIO_PORT, I2Cx_SCL_PIN, GPIO_PIN_SET); | |
| 36 HAL_Delay(10); | |
| 37 } | |
| 38 | |
| 39 GPIO_PinState MX_I2C1_TestAndClear(void) | |
| 40 { | |
| 41 I2C_DeInit(); | |
| 42 HAL_I2C_ManualControl_MspInit(); | |
| 43 for(int i=0; i<9;i++) | |
| 44 { | |
| 45 if(HAL_I2C_Read_Data_PIN() == GPIO_PIN_RESET) | |
| 46 HAL_I2C_Send_One_CLOCK(); | |
| 47 else | |
| 48 break; | |
| 49 } | |
| 50 return HAL_I2C_Read_Data_PIN(); | |
| 51 } | |
| 52 | |
| 53 HAL_StatusTypeDef MX_I2C1_Init(void) | |
| 54 { | |
| 55 I2cHandle.Instance = I2Cx; | |
| 56 I2cHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; | |
| 104 | 57 I2cHandle.Init.ClockSpeed = 100000;//400000; REDUCED for compatibility with HMC5583L + MMA8452Q |
| 38 | 58 I2cHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; |
| 104 | 59 I2cHandle.Init.DutyCycle = I2C_DUTYCYCLE_2; |
| 38 | 60 I2cHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; |
| 61 I2cHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; | |
| 62 I2cHandle.Init.OwnAddress1 = 0x01; | |
| 63 | |
| 64 global.I2C_SystemStatus = HAL_I2C_Init(&I2cHandle); | |
| 82 | 65 HAL_I2CEx_AnalogFilter_Config(&I2cHandle, I2C_ANALOGFILTER_ENABLED); |
| 100 | 66 HAL_I2CEx_ConfigDigitalFilter(&I2cHandle,0x0F); |
| 67 | |
| 68 if(global.dataSendToSlavePending) | |
| 69 { | |
| 70 scheduleSpecial_Evaluate_DataSendToSlave(); | |
| 71 } | |
|
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72 return global.I2C_SystemStatus; |
| 38 | 73 } |
| 74 | |
| 75 | |
| 76 void I2C_DeInit(void) | |
| 77 { | |
| 78 HAL_I2C_DeInit(&I2cHandle); | |
| 79 } | |
| 80 | |
|
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81 static uint8_t i2c_errors = 0; |
| 38 | 82 |
| 83 void I2C_Error_count(void) | |
| 84 { | |
| 85 i2c_errors++; | |
| 86 } | |
| 87 | |
| 88 HAL_StatusTypeDef I2C_Master_Transmit( uint16_t DevAddress, uint8_t *pData, uint16_t Size) | |
| 89 { | |
| 90 if(global.I2C_SystemStatus != HAL_OK) | |
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91 return global.I2C_SystemStatus; |
| 38 | 92 |
| 182 | 93 global.I2C_SystemStatus = HAL_I2C_Master_Transmit(&I2cHandle, DevAddress, pData, Size, 2); |
| 38 | 94 if(global.I2C_SystemStatus != HAL_OK) |
| 95 { | |
| 96 I2C_Error_count(); | |
| 97 } | |
| 88 | 98 |
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99 return global.I2C_SystemStatus; |
| 38 | 100 } |
| 101 | |
| 102 HAL_StatusTypeDef I2C_Master_Receive( uint16_t DevAddress, uint8_t *pData, uint16_t Size) | |
| 103 { | |
| 104 if(global.I2C_SystemStatus != HAL_OK) | |
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cleanup, bugfix: do not mask I2C_SystemStatus with local variable
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parents:
182
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105 return global.I2C_SystemStatus; |
| 38 | 106 |
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cleanup, bugfix: do not mask I2C_SystemStatus with local variable
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parents:
182
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changeset
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107 global.I2C_SystemStatus = HAL_I2C_Master_Receive(&I2cHandle, DevAddress, pData, Size, 10); |
|
a9d798e8c11f
cleanup, bugfix: do not mask I2C_SystemStatus with local variable
Jan Mulder <jlmulder@xs4all.nl>
parents:
182
diff
changeset
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108 if(global.I2C_SystemStatus != HAL_OK) |
| 38 | 109 { |
| 110 I2C_Error_count(); | |
| 111 } | |
| 112 | |
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cleanup, bugfix: do not mask I2C_SystemStatus with local variable
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parents:
182
diff
changeset
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113 return global.I2C_SystemStatus; |
| 38 | 114 } |