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Merge pull request #4 from WantClue/temperature-failsafe

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Add temperature reading to Asic run and disable if overheat
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Thomas Shufps 2024-09-14 07:09:03 +02:00 committed by GitHub
commit 6a04694180
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1 changed files with 30 additions and 0 deletions
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src/mining_nerdnos.cpp
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@ -16,6 +16,8 @@
#include "drivers/nerd-nos/nerdnos.h"
#include "mining_nerdnos.h"
#include "drivers/nerd-nos/adc.h"
#include "drivers/nerd-nos/bm1397.h"
extern WiFiClient client;
extern mining_subscribe mWorker;
@ -38,6 +40,10 @@ static bm_job_t asic_jobs[ASIC_JOB_COUNT] = {0};
// to track hashrate
#define ASIC_HISTORY_SIZE 128
// define temperature readings
#define MAX_SAFE_TEMP 80.0 // Define maximum safe temperature (in Celsius)
#define TEMP_CHECK_INTERVAL 5000 // Check temperature every 5 seconds (in milliseconds)
typedef struct {
uint32_t diffs[ASIC_HISTORY_SIZE];
uint64_t timestamps[ASIC_HISTORY_SIZE];
@ -120,6 +126,8 @@ void runASIC(void * task_id) {
}
uint32_t extranonce_2 = 0;
unsigned long lastTempCheck = 0;
while(1) {
// wait for new job
while(!mMiner.newJob) {
@ -142,6 +150,28 @@ void runASIC(void * task_id) {
uint32_t current_difficulty = 0;
while (mMiner.inRun) {
// Temperature check
unsigned long currentTime = millis();
if (currentTime - lastTempCheck > TEMP_CHECK_INTERVAL) {
float currentTemp = nerdnos_get_temperature(); // Get ASIC temperature
if (currentTemp > MAX_SAFE_TEMP) {
gpio_set_level(NERD_NOS_GPIO_PEN, 0); // Disable Buck
Serial.println("ASIC temperature too high. Disabling power.");
// Wait for temperature to drop
while (nerdnos_get_temperature() > (MAX_SAFE_TEMP - 15)) { // 15 degree hysteresis
vTaskDelay(2000 / portTICK_PERIOD_MS); // Check every 2 second
}
gpio_set_level(NERD_NOS_GPIO_PEN, 1); // Enable Buck again
Serial.println("Temperature safe. Re-enabling ASIC.");
BM1397_init(200, 1); // Re-Init ASIC
}
lastTempCheck = currentTime;
}
// wait for the timer to start a new job
// also yields the CPU
pthread_mutex_lock(&job_interval_mutex);