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fix delta calc to signed

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This commit is contained in:
Alessandro Mauri 2026-05-10 11:07:21 +02:00
parent f0d961a65d
commit 64326d0dea
1 changed files with 3 additions and 4 deletions
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7
fw/main.c
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@ -496,6 +496,7 @@ __attribute__((noreturn)) int main(void)
u32 tip_mv = ((u32)injection_results[0]*VCC_MV)/4096; u32 tip_mv = ((u32)injection_results[0]*VCC_MV)/4096;
tip_temp_c = I16_FP_EMA_K2(tip_temp_c, (tip_mv*TC_CONV_NOM)/TC_CONV_DEN) + temp_c; tip_temp_c = I16_FP_EMA_K2(tip_temp_c, (tip_mv*TC_CONV_NOM)/TC_CONV_DEN) + temp_c;
} }
int16_t delta = (int16_t)pd_profile.set_temp - tip_temp_c;
switch (state) { switch (state) {
case STATE_MENU: case STATE_MENU:
@ -526,7 +527,7 @@ __attribute__((noreturn)) int main(void)
// Display power // Display power
//u8g2_DrawStr(u8g2, x_off+0, y_off+15, "W:"); //u8g2_DrawStr(u8g2, x_off+0, y_off+15, "W:");
//u8g2_DrawStr(u8g2, x_off+10, y_off+15, u8g2_u16toa(power, 3)); //u8g2_DrawStr(u8g2, x_off+10, y_off+15, u8g2_u16toa(power, 3));
u8g2_DrawStr(u8g2, x_off+0, y_off+15, i16toa(pd_profile.set_temp - tip_temp_c)); u8g2_DrawStr(u8g2, x_off+0, y_off+15, i16toa(delta));
// Display current // Display current
u8g2_DrawStr(u8g2, x_off+45, y_off+15, "A:"); u8g2_DrawStr(u8g2, x_off+45, y_off+15, "A:");
u8g2_DrawStr(u8g2, x_off+55, y_off+15, u16toa(current_ma)); u8g2_DrawStr(u8g2, x_off+55, y_off+15, u16toa(current_ma));
@ -560,10 +561,8 @@ __attribute__((noreturn)) int main(void)
const uint16_t tim_max = FUNCONF_SYSTEM_CORE_CLOCK / PWM_FREQ_HZ - 1; const uint16_t tim_max = FUNCONF_SYSTEM_CORE_CLOCK / PWM_FREQ_HZ - 1;
static int16_t err_p, err_i, err_d, prev_delta; static int16_t err_p, err_i, err_d, prev_delta;
int16_t delta = pd_profile.set_temp - tip_temp_c;
err_p = delta; err_p = delta;
err_i += delta; err_i = MAX(-1000, MIN(1000, err_i+delta));
err_i = MAX(-1000, MIN(1000, err_i));
err_d = delta - prev_delta; err_d = delta - prev_delta;
prev_delta = delta; prev_delta = delta;