SolarLader/SolarLader_Firmware
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Constant Voltage tuning

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This commit is contained in:
Thomas Kolb 2016-09-04 14:37:08 +02:00
parent f909f26ea7
commit 98c029ca6f
2 changed files with 24 additions and 9 deletions
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2
Makefile
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@ -42,7 +42,7 @@ CFLAGS+=-I$(OPENCM3_DIR)/include
LDFLAGS+=-L$(OPENCM3_DIR)/lib -lopencm3_stm32f0 LDFLAGS+=-L$(OPENCM3_DIR)/lib -lopencm3_stm32f0
# Flags for fxplib # Flags for fxplib
CFLAGS+=-Ifxplib/include -DPOINTPOS=14 CFLAGS+=-Ifxplib/include -DPOINTPOS=16
LDFLAGS+=-Lfxplib/lib/$(BUILD) -lfxp_stm32f0 LDFLAGS+=-Lfxplib/lib/$(BUILD) -lfxp_stm32f0
# generic linking # generic linking

31
src/main.c
View file

@ -528,16 +528,16 @@ int main(void)
uint32_t sleep_time = 10; uint32_t sleep_time = 10;
uint64_t force_display_update_time = 1000; uint64_t force_display_update_time = 1000;
fxp_t PGAIN_CV = fxp_from_float( 50.000f); fxp_t PGAIN_CV = fxp_from_float( 1000.000f);
fxp_t IGAIN_CV = fxp_from_float( 0.300f); fxp_t IGAIN_CV = fxp_from_float( 0.500f);
fxp_t IERR_LIMIT = fxp_from_int(4000); fxp_t IERR_LIMIT = fxp_from_int(5000);
fxp_t PGAIN_CC = fxp_from_float( 50.000f); fxp_t PGAIN_CC = fxp_from_float( 50.000f);
fxp_t IGAIN_CC = fxp_from_float( 0.300f); fxp_t IGAIN_CC = fxp_from_float( 0.300f);
fxp_t CURRENT_THRESHOLD = fxp_from_float(0.001f); fxp_t CURRENT_THRESHOLD = fxp_from_float(0.001f);
fxp_t AVG_FACT = fxp_from_float(0.10f); fxp_t AVG_FACT = fxp_from_float(0.05f);
fxp_t AVG_FACT_INV = fxp_sub(fxp_from_int(1), AVG_FACT); fxp_t AVG_FACT_INV = fxp_sub(fxp_from_int(1), AVG_FACT);
fxp_t MAX_VOLTAGE = fxp_from_float(14.400f); fxp_t MAX_VOLTAGE = fxp_from_float(14.400f);
@ -565,9 +565,9 @@ int main(void)
//fxp_t CURRENT_SCALE = fxp_from_float(9.7f / 4095.0f); //fxp_t CURRENT_SCALE = fxp_from_float(9.7f / 4095.0f);
// Calibrated from measurements // Calibrated from measurements
fxp_t VIN_SCALE = fxp_from_float(12.11f / 1600.0f); fxp_t VIN_SCALE = fxp_from_float(12.23f / 1600.0f);
fxp_t VOUT_SCALE = fxp_from_float(12.6f / 1620.0f); fxp_t VOUT_SCALE = fxp_from_float(12.76f / 1620.0f);
fxp_t CURRENT_SCALE = fxp_from_float(9.01f / 4095.0f); fxp_t CURRENT_SCALE = fxp_from_float(8.95f / 4095.0f);
fxp_t CURRENT_OFFSET = fxp_from_float(0.045); fxp_t CURRENT_OFFSET = fxp_from_float(0.045);
@ -685,7 +685,7 @@ int main(void)
timer_set_oc_value(TIM1, TIM_CH_BOOTSTRAP, 24); timer_set_oc_value(TIM1, TIM_CH_BOOTSTRAP, 24);
if(time_in_state >= 5) { // bootstrap duration in ms if(time_in_state >= 5) { // bootstrap duration in ms
iErr = fxp_div(IERR_LIMIT, fxp_from_int(2)); //iErr = 0;
operState = nextState; operState = nextState;
} }
break; break;
@ -717,6 +717,21 @@ int main(void)
timer_set_oc_value(TIM1, TIM_CH_CONV, 0); timer_set_oc_value(TIM1, TIM_CH_CONV, 0);
} }
#ifdef DEBUG
if((time_in_state % 100) == 0) {
debug_send_string("pErr: ");
fxp_format(pErr, msg, 3);
debug_send_string(msg);
debug_send_string(" iErr: ");
fxp_format(iErr, msg, 3);
debug_send_string(msg);
debug_send_string(" controlAction: ");
fxp_format(controlAction, msg, 3);
debug_send_string(msg);
sentSomething = 1;
}
#endif
if(time_in_state > 5000 && pwm > CONV_PWM_MAX && power_state.current_avg < CURRENT_THRESHOLD) { if(time_in_state > 5000 && pwm > CONV_PWM_MAX && power_state.current_avg < CURRENT_THRESHOLD) {
operState = Bootstrap; operState = Bootstrap;
nextState = ConvConstVoltage; nextState = ConvConstVoltage;