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DI HV sanity checks (#1306) 

* mc33 flash check

* DI sanity checks for setting HV config

Co-authored-by: Christopher W. Anderson <gitstuff@pswitch.com>
This commit is contained in:
NOx-z 2020-04-16 13:04:09 -07:00 committed by GitHub
parent 2f51b0c6f8
commit fde7acd16f
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 18 additions and 9 deletions
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23
firmware/hw_layer/mc33816.cpp
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@ -149,7 +149,16 @@ void mcUpdateDram(MC33816Mem addr, unsigned short data) {
void setBoostVoltage(float volts)
{
// Specifically for Discovery's ~4.5v 5v rail
// Sanity checks, Datasheet says not too high, nor too low
if(volts > 65.0f) {
firmwareError(OBD_PCM_Processor_Fault, "DI Boost voltage setpoint too high: %.1f", volts);
return;
}
if(volts < 10.0f) {
firmwareError(OBD_PCM_Processor_Fault, "DI Boost voltage setpoint too low: %.1f", volts);
return;
}
// There's a 1/32 divider on the input, then the DAC's output is 9.77mV per LSB. (1 / 32) / 0.00977 = 3.199 counts per volt.
unsigned short data = volts * 3.2;
mcUpdateDram(MC33816Mem::Vboost_high, data+1);
mcUpdateDram(MC33816Mem::Vboost_low, data-1);
@ -350,17 +359,21 @@ void initMc33816(Logging *sharedLogger) {
//
// see setTest33816EngineConfiguration for default configuration
// Pins
if (CONFIG(mc33816_cs) == GPIO_UNASSIGNED)
return;
if (CONFIG(mc33816_rstb) == GPIO_UNASSIGNED)
return;
if (CONFIG(mc33816_driven) == GPIO_UNASSIGNED)
return;
if (CONFIG(mc33816_flag0) != GPIO_UNASSIGNED) {
efiSetPadMode("mc33816 flag0", CONFIG(mc33816_flag0), getInputMode(PI_DEFAULT));
}
// Configuration Values
if (CONFIG(mc33_hvolt) == GPIO_UNASSIGNED)
return;
chipSelect.initPin("mc33 CS", engineConfiguration->mc33816_cs /*, &engineConfiguration->csPinMode*/);
// Initialize the chip via ResetB
@ -381,11 +394,8 @@ void initMc33816(Logging *sharedLogger) {
return;
}
spiStart(driver, &spiCfg);
addConsoleAction("mc33_stats", showStats);
addConsoleAction("mc33_restart", mcRestart);
//addConsoleActionI("mc33_send", sendWord);
@ -451,7 +461,6 @@ static void mcRestart() {
return;
}
setBoostVoltage(CONFIG(mc33_hvolt));
driven.setValue(1); // driven = HV
}