Mercurial > public > ostc4
annotate Small_CPU/Src/i2c.c @ 232:f0069f002c55 div-fixes-4-1
Bugfix: make date/time setting work over reboots
Setting the time/date over the UART interface or by the menu, seems
to work, but a reboot of the RTE brings back strange, seemingly
random, time.
The reason for this is rather simple. In the settings, a time
is stored, based on some flawed logic, and that time was restored
on reboot. There is no reason to store any time, when the moment of
restoring it is unrelated in time. So, the fix is simple: do not
set time (in the RTC) based on some time from the past. The whole idea
of a RTC is that it does preserve the time for you, as long its
powered. Any attempt to do things better using stored time data is
futile (and nonsense).
And while working on his, also kick out some useless code from the RTE.
There is no reason to initialize the time on the RTC to some random
time/date in the past. A zero data/time is as good and any random
date.
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author | Jan Mulder <jlmulder@xs4all.nl> |
---|---|
date | Wed, 03 Apr 2019 21:11:56 +0200 |
parents | 7e749084f347 |
children | a9d798e8c11f |
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 | |
165
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Minor: Some documentation for new hardware
heinrichsweikamp
parents:
104
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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 HAL_StatusTypeDef I2C1_Status(void) | |
27 { | |
28 return (HAL_StatusTypeDef)global.I2C_SystemStatus; | |
29 } | |
30 | |
31 | |
32 GPIO_PinState HAL_I2C_Read_Data_PIN(void) | |
33 { | |
34 return HAL_GPIO_ReadPin(I2Cx_SDA_GPIO_PORT,I2Cx_SDA_PIN); | |
35 } | |
36 | |
37 void HAL_I2C_Send_One_CLOCK(void) | |
38 { | |
39 HAL_GPIO_WritePin(I2Cx_SCL_GPIO_PORT, I2Cx_SCL_PIN, GPIO_PIN_RESET); | |
40 HAL_Delay(10); | |
41 HAL_GPIO_WritePin(I2Cx_SCL_GPIO_PORT, I2Cx_SCL_PIN, GPIO_PIN_SET); | |
42 HAL_Delay(10); | |
43 } | |
44 | |
45 GPIO_PinState MX_I2C1_TestAndClear(void) | |
46 { | |
47 I2C_DeInit(); | |
48 HAL_I2C_ManualControl_MspInit(); | |
49 for(int i=0; i<9;i++) | |
50 { | |
51 if(HAL_I2C_Read_Data_PIN() == GPIO_PIN_RESET) | |
52 HAL_I2C_Send_One_CLOCK(); | |
53 else | |
54 break; | |
55 } | |
56 return HAL_I2C_Read_Data_PIN(); | |
57 } | |
58 | |
59 HAL_StatusTypeDef MX_I2C1_Init(void) | |
60 { | |
61 I2cHandle.Instance = I2Cx; | |
62 I2cHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; | |
104 | 63 I2cHandle.Init.ClockSpeed = 100000;//400000; REDUCED for compatibility with HMC5583L + MMA8452Q |
38 | 64 I2cHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; |
104 | 65 I2cHandle.Init.DutyCycle = I2C_DUTYCYCLE_2; |
38 | 66 I2cHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; |
67 I2cHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; | |
68 I2cHandle.Init.OwnAddress1 = 0x01; | |
69 | |
88 | 70 global.dataSendToSlaveStopEval = 1; |
38 | 71 |
72 global.I2C_SystemStatus = HAL_I2C_Init(&I2cHandle); | |
82 | 73 HAL_I2CEx_AnalogFilter_Config(&I2cHandle, I2C_ANALOGFILTER_ENABLED); |
100 | 74 HAL_I2CEx_ConfigDigitalFilter(&I2cHandle,0x0F); |
75 | |
82 | 76 |
38 | 77 |
88 | 78 global.dataSendToSlaveStopEval = 0; |
100 | 79 if(global.dataSendToSlavePending) |
80 { | |
81 scheduleSpecial_Evaluate_DataSendToSlave(); | |
82 } | |
38 | 83 return (HAL_StatusTypeDef)global.I2C_SystemStatus; |
84 } | |
85 | |
86 | |
87 void I2C_DeInit(void) | |
88 { | |
89 HAL_I2C_DeInit(&I2cHandle); | |
90 } | |
91 | |
92 | |
93 uint8_t i2c_errors = 0; | |
94 | |
95 void I2C_Error_count(void) | |
96 { | |
97 i2c_errors++; | |
98 } | |
99 | |
100 | |
101 HAL_StatusTypeDef I2C_Master_TransmitNoStop( uint16_t DevAddress, uint8_t *pData, uint16_t Size) | |
102 { | |
103 if(global.I2C_SystemStatus != HAL_OK) | |
104 return (HAL_StatusTypeDef)global.I2C_SystemStatus; | |
105 | |
88 | 106 global.dataSendToSlaveStopEval = 1; |
38 | 107 |
182 | 108 global.I2C_SystemStatus = HAL_I2C_Master_Transmit(&I2cHandle, DevAddress, pData, Size, 0); |
38 | 109 if(global.I2C_SystemStatus != HAL_OK) |
110 { | |
111 I2C_Error_count(); | |
112 } | |
88 | 113 global.dataSendToSlaveStopEval = 0; |
104 | 114 //TODO: REMOVE. |
100 | 115 // if(global.dataSendToSlavePending) |
116 // { | |
117 // scheduleSpecial_Evaluate_DataSendToSlave(); | |
118 // } | |
38 | 119 return (HAL_StatusTypeDef)global.I2C_SystemStatus; |
120 } | |
121 | |
122 | |
123 HAL_StatusTypeDef I2C_Master_Transmit( uint16_t DevAddress, uint8_t *pData, uint16_t Size) | |
124 { | |
125 if(global.I2C_SystemStatus != HAL_OK) | |
126 return (HAL_StatusTypeDef)(global.I2C_SystemStatus & 0x03); | |
127 | |
128 | |
88 | 129 global.dataSendToSlaveStopEval = 1; |
38 | 130 |
182 | 131 global.I2C_SystemStatus = HAL_I2C_Master_Transmit(&I2cHandle, DevAddress, pData, Size, 2); |
38 | 132 if(global.I2C_SystemStatus != HAL_OK) |
133 { | |
134 I2C_Error_count(); | |
135 } | |
136 | |
88 | 137 global.dataSendToSlaveStopEval = 0; |
104 | 138 //TODO: REMOVE. |
100 | 139 // if(global.dataSendToSlavePending) |
140 // { | |
141 // scheduleSpecial_Evaluate_DataSendToSlave(); | |
142 // } | |
88 | 143 |
38 | 144 return (HAL_StatusTypeDef)global.I2C_SystemStatus; |
145 } | |
146 | |
147 | |
148 HAL_StatusTypeDef I2C_Master_Receive( uint16_t DevAddress, uint8_t *pData, uint16_t Size) | |
149 { | |
150 if(global.I2C_SystemStatus != HAL_OK) | |
151 return (HAL_StatusTypeDef)global.I2C_SystemStatus; | |
152 | |
153 uint8_t localHALstatusReturn = 0xFF; | |
154 | |
88 | 155 global.dataSendToSlaveStopEval = 1; |
38 | 156 |
104 | 157 localHALstatusReturn = HAL_I2C_Master_Receive(&I2cHandle, DevAddress, pData, Size, 10); |
38 | 158 if(localHALstatusReturn != HAL_OK) |
159 { | |
160 I2C_Error_count(); | |
161 } | |
162 | |
88 | 163 global.dataSendToSlaveStopEval = 0; |
104 | 164 //TODO: REMOVE. |
94
c6d284ea265b
reduce i2c speed and dutycycle for compass stability
Dmitry Romanov <kitt@bk.ru>
parents:
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changeset
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165 // if(global.dataSendToSlavePending) |
c6d284ea265b
reduce i2c speed and dutycycle for compass stability
Dmitry Romanov <kitt@bk.ru>
parents:
88
diff
changeset
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166 // { |
100 | 167 // scheduleSpecial_Evaluate_DataSendToSlave(); |
94
c6d284ea265b
reduce i2c speed and dutycycle for compass stability
Dmitry Romanov <kitt@bk.ru>
parents:
88
diff
changeset
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168 // } |
100 | 169 |
38 | 170 return (HAL_StatusTypeDef)localHALstatusReturn; |
171 } | |
172 |