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Slight reqork of QC logic to bring back older style + mix in another compatability hack

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This commit is contained in:
Ben V. Brown
2020-04-04 13:16:28 +11:00
parent baa9ff66a8
commit eef2fb8148
1 changed files with 34 additions and 19 deletions
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53
workspace/TS100/Core/Src/hardware.cpp
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@@ -233,10 +233,25 @@ void startQC(uint16_t divisor) {
// Delay 1.25 seconds
uint8_t enteredQC = 0;
vTaskDelay(125);
// Check if D- is low to spot a QC charger
if (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_11) == GPIO_PIN_RESET)
enteredQC = 1;
for (uint16_t i = 0; i < 200 && enteredQC == 0; i++) {
vTaskDelay(1); //10mS pause
if (i > 130) {
if (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_11) == GPIO_PIN_RESET) {
enteredQC = 1;
}
if (i == 140) {
//For some marginal QC chargers, we try adding a pulldown
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
GPIO_InitStruct.Pin = GPIO_PIN_11;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}
}
}
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Pin = GPIO_PIN_11;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
if (enteredQC) {
// We have a QC capable charger
QC_Seek9V();
@@ -280,19 +295,19 @@ static unsigned int sqrt32(unsigned long n) {
}
}
int16_t calculateMaxVoltage(uint8_t useHP) {
// This measures the tip resistance, then it calculates the appropriate
// voltage To stay under ~18W. Mosfet is "9A", so no issues there
// QC3.0 supports up to 18W, which is 2A @9V and 1.5A @12V
// This measures the tip resistance, then it calculates the appropriate
// voltage To stay under ~18W. Mosfet is "9A", so no issues there
// QC3.0 supports up to 18W, which is 2A @9V and 1.5A @12V
uint32_t milliOhms = 4500;
// Check no tip
// Check no tip
if (milliOhms > 10000)
return -1;
//Because of tolerance, if a user has asked for the higher power mode, then just goto 12V and call it a day
//Because of tolerance, if a user has asked for the higher power mode, then just goto 12V and call it a day
if (useHP)
return 120;
//
// V = sqrt(18W*R)
// Convert this to sqrt(18W)*sqrt(milli ohms)*sqrt(1/1000)
//
// V = sqrt(18W*R)
// Convert this to sqrt(18W)*sqrt(milli ohms)*sqrt(1/1000)
uint32_t Vx = sqrt32(milliOhms);
if (useHP)
@@ -300,17 +315,17 @@ int16_t calculateMaxVoltage(uint8_t useHP) {
else
Vx *= 1342; // sqrt(18) * sqrt(1/1000)*10000
// Round to nearest 200mV,
// So divide by 100 to start, to get in Vxx
// Round to nearest 200mV,
// So divide by 100 to start, to get in Vxx
Vx /= 100;
if (Vx % 10 >= 5)
Vx += 10;
Vx /= 10;
// Round to nearest increment of 2
// Round to nearest increment of 2
if (Vx % 2 == 1)
Vx++;
//Because of how bad the tolerance is on detecting the tip resistance is
//Its more functional to bin this
//Because of how bad the tolerance is on detecting the tip resistance is
//Its more functional to bin this
if (Vx < 90)
Vx = 90;
else if (Vx >= 105)
@@ -332,7 +347,7 @@ void setTipPWM(uint8_t pulse) {
// timers.
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) {
// Period has elapsed
// Period has elapsed
if (htim->Instance == TIM2) {
// we want to turn on the output again
PWMSafetyTimer--;
@@ -354,7 +369,7 @@ void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) {
}
void HAL_TIM_PWM_PulseFinishedCallback(TIM_HandleTypeDef *htim) {
// This was a when the PWM for the output has timed out
// This was a when the PWM for the output has timed out
if (htim->Channel == HAL_TIM_ACTIVE_CHANNEL_4) {
HAL_TIM_PWM_Stop(&htim3, TIM_CHANNEL_1);
}