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MCP9808_AlertMin

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Tester23
2023-07-05 02:25:50 +02:00
parent 7f7bd1a114
commit bfbccd436e
1 changed files with 32 additions and 1 deletions
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33
src/driver/drv_mcp9808.c
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@@ -174,6 +174,36 @@ commandResult_t MCP9808_AlertRange(const void* context, const char* cmd, const c
return CMD_RES_OK;
}
// MCP9808_AlertMin [MinT] [OptionalBActiveHigh]
// MCP9808_AlertMin 20 1
commandResult_t MCP9808_AlertMin(const void* context, const char* cmd, const char* args, int cmdFlags) {
float min;
int bActiveHigh;
Tokenizer_TokenizeString(args, TOKENIZER_ALLOW_QUOTES | TOKENIZER_DONT_EXPAND);
if (Tokenizer_CheckArgsCountAndPrintWarning(cmd, 1)) {
return CMD_RES_NOT_ENOUGH_ARGUMENTS;
}
min = Tokenizer_GetArgFloat(0);
bActiveHigh = Tokenizer_GetArgIntegerDefault(1, 0);
MCP9808_SetTcritical(min);
// SET ALERT PARAMETERS
uint16_t cfg = MCP9808_GetConfigRegister();
cfg &= ~0x0001; // set comparator mode
if (bActiveHigh) {
cfg &= ~0x0002; // set polarity HIGH
}
else {
cfg |= 0x0002; // set polarity LOW
}
// TA > TCRIT only
cfg |= 0x0004; // use only critical
cfg |= 0x0008; // enable alert
MCP9808_SetConfigRegister(cfg);
return CMD_RES_OK;
}
// startDriver MCP9808
void MCP9808_Init() {
@@ -186,8 +216,9 @@ void MCP9808_Init() {
Soft_I2C_PreInit(&g_softI2C);
CMD_RegisterCommand("MCP9808_Adr", MCP9808_Adr, NULL);
CMD_RegisterCommand("MCP9808_AlertRange", MCP9808_AlertRange, NULL);
CMD_RegisterCommand("MCP9808_AlertMin", MCP9808_AlertMin, NULL);
//cmddetail:{"name":"MCP9808_Calibrate","args":"",
//cmddetail:"descr":"Calibrate the MCP9808 Sensor as Tolerance is +/-2 degrees C.",