rusefi
/
custom-board-bundle-sample-fork-of-rusefi
mirror of https://github.com/rusefi/custom-board-bundle-sample-fork-of-rusefi.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Mc33 undervolt (#1421) 

* mc33 flash check

* DI sanity checks for setting HV config

* mc33 under voltage check

* mc33 under voltage check

Co-authored-by: Christopher W. Anderson <gitstuff@pswitch.com>
This commit is contained in:
NOx-z 2020-05-10 22:52:20 -07:00 committed by GitHub
parent e37f737689
commit ff724bdc74
1 changed files with 43 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
firmware/hw_layer/mc33816.cpp
View File

@ -33,6 +33,7 @@ static bool flag0before = false;
static bool flag0after = false;
static unsigned short mcChipId;
static unsigned short mcDriverStatus;
static Logging* logger;
static SPIConfig spiCfg = { .circular = false,
@ -54,7 +55,7 @@ static bool validateChipId() {
static void showStats() {
// x9D is product code or something, and 43 is the revision?
scheduleMsg(logger, "MC %x %s", mcChipId, validateChipId() ? "hooray!" : "not hooray :(");
scheduleMsg(logger, "MC 0x%x %s", mcChipId, validateChipId() ? "hooray!" : "not hooray :(");
if (CONFIG(mc33816_flag0) != GPIO_UNASSIGNED) {
scheduleMsg(logger, "flag0 before %d after %d", flag0before, flag0after);
@ -65,6 +66,7 @@ static void showStats() {
scheduleMsg(logger, "No flag0 pin selected");
}
scheduleMsg(logger, "MC voltage %d", CONFIG(mc33_hvolt));
scheduleMsg(logger, "MC driver status 0x%x", mcDriverStatus);
}
static void mcRestart();
@ -189,6 +191,32 @@ static bool check_flash() {
return true;
}
static unsigned short readDriverStatus(){
// Note: There is a config at 0x1CE & 1 that can reset this status reg on read
// otherwise the reload/recheck occurs with a write
// resetting it is necessary to reload - if the interrupt condition has been resolved
unsigned short driverStatus;
setup_spi(); // ensure on common page?
spiSelect(driver);
spi_writew((0x8000 | 0x1D2 << 5) + 1);
driverStatus = recv_16bit_spi();
spiUnselect(driver);
return driverStatus;
}
static bool checkUndervoltV5(unsigned short driverStatus){
return (driverStatus & (1<<1));
}
static bool checkOverTemp(unsigned short driverStatus){
return (driverStatus & (1<<3));
}
static bool checkDrivenEnabled(unsigned short driverStatus){
return (driverStatus & (1<<4));
}
static void enable_flash() {
spiSelect(driver);
spi_writew(0x2001); //ch1
@ -422,8 +450,14 @@ static void mcRestart() {
setup_spi();
mcChipId = readId();
mcDriverStatus = readDriverStatus();
if(checkUndervoltV5(mcDriverStatus)){
firmwareError(OBD_PCM_Processor_Fault, "MC33 5V Under-Voltage!");
return;
}
mcChipId = readId();
if (!validateChipId()) {
firmwareError(OBD_PCM_Processor_Fault, "No comm with MC33");
return;
@ -458,6 +492,13 @@ static void mcRestart() {
}
setBoostVoltage(CONFIG(mc33_hvolt));
driven.setValue(1); // driven = HV
mcDriverStatus = readDriverStatus();
if(!checkDrivenEnabled(mcDriverStatus)){
firmwareError(OBD_PCM_Processor_Fault, "MC33 Driven did not stick!");
return;
}
}
#endif /* EFI_MC33816 */