foxBMS  1.6.0
The foxBMS Battery Management System API Documentation
ltc_afe.c
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41 
42 /**
43  * @file ltc_afe.c
44  * @author foxBMS Team
45  * @date 2020-05-08 (date of creation)
46  * @updated 2023-10-12 (date of last update)
47  * @version v1.6.0
48  * @ingroup DRIVER
49  * @prefix AFE
50  *
51  * @brief AFE driver implementation for LTC ICs
52  */
53 
54 /*========== Includes =======================================================*/
55 
56 /* clang-format off */
57 #include "afe.h"
58 /* clang-format on */
59 #include "ltc.h"
60 
61 #include <stdint.h>
62 
63 /*========== Macros and Definitions =========================================*/
64 
65 /*========== Static Constant and Variable Definitions =======================*/
66 
67 /*========== Extern Constant and Variable Definitions =======================*/
68 
69 /*========== Static Function Prototypes =====================================*/
70 
71 /*========== Static Function Implementations ================================*/
72 
73 /*========== Extern Function Implementations ================================*/
74 
77  return STD_OK;
78 }
79 
82  return STD_OK;
83 }
84 
85 extern STD_RETURN_TYPE_e AFE_RequestEepromRead(uint8_t string) {
86  FAS_ASSERT(string < BS_NR_OF_STRINGS);
87  STD_RETURN_TYPE_e retval = STD_OK;
88  LTC_REQUEST_s statereq = {.request = LTC_STATE_EEPROM_READ_REQUEST, .string = string};
89 
90  if (LTC_SetStateRequest(&ltc_stateBase, statereq) != LTC_OK) {
91  retval = STD_NOT_OK;
92  }
93  return retval;
94 }
95 
96 extern STD_RETURN_TYPE_e AFE_RequestEepromWrite(uint8_t string) {
97  FAS_ASSERT(string < BS_NR_OF_STRINGS);
98  STD_RETURN_TYPE_e retval = STD_OK;
99  LTC_REQUEST_s statereq = {.request = LTC_STATE_EEPROM_WRITE_REQUEST, .string = string};
100 
101  if (LTC_SetStateRequest(&ltc_stateBase, statereq) != LTC_OK) {
102  retval = STD_NOT_OK;
103  }
104  return retval;
105 }
106 
108  FAS_ASSERT(string < BS_NR_OF_STRINGS);
109  STD_RETURN_TYPE_e retval = STD_OK;
110  LTC_REQUEST_s statereq = {.request = LTC_STATE_TEMP_SENS_READ_REQUEST, .string = string};
111 
112  if (LTC_SetStateRequest(&ltc_stateBase, statereq) != LTC_OK) {
113  retval = STD_NOT_OK;
114  }
115  return retval;
116 }
117 
119  FAS_ASSERT(string < BS_NR_OF_STRINGS);
120  STD_RETURN_TYPE_e retval = STD_NOT_OK;
121  LTC_REQUEST_s statereq = {.request = LTC_STATE_BALANCEFEEDBACK_REQUEST, .string = string};
122 
123  if (LTC_SetStateRequest(&ltc_stateBase, statereq) == LTC_OK) {
124  retval = STD_OK;
125  }
126 
127  return retval;
128 }
129 
131  FAS_ASSERT(string < BS_NR_OF_STRINGS);
132  STD_RETURN_TYPE_e retval = STD_OK;
133  LTC_REQUEST_s statereq = {.request = LTC_STATE_OPENWIRE_CHECK_REQUEST, .string = string};
134 
135  if (LTC_SetStateRequest(&ltc_stateBase, statereq) != LTC_OK) {
136  retval = STD_NOT_OK;
137  }
138  return retval;
139 }
140 
142  STD_RETURN_TYPE_e retval = STD_OK;
143  LTC_REQUEST_s statereq = {.request = LTC_STATE_INIT_REQUEST, .string = 0x0u};
144 
145  if (LTC_SetStateRequest(&ltc_stateBase, statereq) != LTC_OK) {
146  retval = STD_NOT_OK;
147  }
148  return retval;
149 }
150 
153 }
154 
155 extern STD_RETURN_TYPE_e AFE_RequestIoRead(uint8_t string) {
156  FAS_ASSERT(string < BS_NR_OF_STRINGS);
157 
158  STD_RETURN_TYPE_e retval = STD_NOT_OK;
159 
160  return (retval);
161 }
162 
164  FAS_ASSERT(string < BS_NR_OF_STRINGS);
165 
166  STD_RETURN_TYPE_e retval = STD_NOT_OK;
167 
168  return (retval);
169 }
170 
171 /*========== Externalized Static Function Implementations (Unit Test) =======*/
172 #ifdef UNITY_UNIT_TEST
173 #endif
AFE driver header.
#define BS_NR_OF_STRINGS
Number of parallel strings in the battery pack.
#define FAS_ASSERT(x)
Assertion macro that asserts that x is true.
Definition: fassert.h:255
STD_RETURN_TYPE_e
Definition: fstd_types.h:82
@ STD_NOT_OK
Definition: fstd_types.h:84
@ STD_OK
Definition: fstd_types.h:83
Headers for the driver for the LTC analog front-end.
bool LTC_IsFirstMeasurementCycleFinished(LTC_STATE_s *ltc_state)
gets the measurement initialization status.
Definition: ltc_6806.c:1733
LTC_RETURN_TYPE_e LTC_SetStateRequest(LTC_STATE_s *ltc_state, LTC_REQUEST_s statereq)
sets the current state request of the state variable ltc_state.
Definition: ltc_6806.c:605
void LTC_InitializeMonitoringPin(void)
Sets the transceiver pins to enable LTC6820 IC.
Definition: ltc_6806.c:1752
LTC_STATE_s ltc_stateBase
Definition: ltc_6806.c:139
void LTC_Trigger(LTC_STATE_s *ltc_state)
trigger function for the LTC driver state machine.
Definition: ltc_6806.c:620
STD_RETURN_TYPE_e AFE_RequestEepromRead(uint8_t string)
Makes the request to the AFE state machine to read from the external EEPROM on slaves.
Definition: ltc_afe.c:85
STD_RETURN_TYPE_e AFE_RequestEepromWrite(uint8_t string)
Makes the request to the AFE state machine to write to the external EEPROM on slaves.
Definition: ltc_afe.c:96
STD_RETURN_TYPE_e AFE_RequestIoRead(uint8_t string)
Makes the request to the AFE state machine to read from the IO port-expander.
Definition: ltc_afe.c:155
STD_RETURN_TYPE_e AFE_TriggerIc(void)
Definition: ltc_afe.c:75
STD_RETURN_TYPE_e AFE_RequestOpenWireCheck(uint8_t string)
Makes the request to the AFE state machine to perform open-wire check.
Definition: ltc_afe.c:130
bool AFE_IsFirstMeasurementCycleFinished(void)
Checks if the first AFE measurement cycle was made.
Definition: ltc_afe.c:151
STD_RETURN_TYPE_e AFE_RequestBalancingFeedbackRead(uint8_t string)
Makes the request to the AFE state machine to read balancing feedback from the slaves.
Definition: ltc_afe.c:118
STD_RETURN_TYPE_e AFE_RequestTemperatureRead(uint8_t string)
Makes the request to the AFE state machine to read from the external temperature sensor on slaves.
Definition: ltc_afe.c:107
STD_RETURN_TYPE_e AFE_RequestIoWrite(uint8_t string)
Makes the request to the AFE state machine to write to the IO port-expander.
Definition: ltc_afe.c:163
STD_RETURN_TYPE_e AFE_Initialize(void)
Definition: ltc_afe.c:80
STD_RETURN_TYPE_e AFE_StartMeasurement(void)
Makes the initialization request to the AFE state machine.
Definition: ltc_afe.c:141
@ LTC_STATE_EEPROM_READ_REQUEST
Definition: ltc_defs.h:375
@ LTC_STATE_INIT_REQUEST
Definition: ltc_defs.h:369
@ LTC_STATE_EEPROM_WRITE_REQUEST
Definition: ltc_defs.h:376
@ LTC_STATE_OPENWIRE_CHECK_REQUEST
Definition: ltc_defs.h:391
@ LTC_STATE_BALANCEFEEDBACK_REQUEST
Definition: ltc_defs.h:379
@ LTC_STATE_TEMP_SENS_READ_REQUEST
Definition: ltc_defs.h:378
@ LTC_OK
Definition: ltc_defs.h:402
LTC_STATE_REQUEST_e request
Definition: ltc_defs.h:515