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MC33816 dram update (#1305) 

* mc33 flash check

* update dram and set boost voltage function

Co-authored-by: Christopher W. Anderson <gitstuff@pswitch.com>
This commit is contained in:
NOx-z 2020-04-16 04:32:08 -07:00 committed by GitHub
parent a11166d992
commit 0657e3aeac
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 60 additions and 30 deletions
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81
firmware/hw_layer/mc33816.cpp
View File

@ -16,6 +16,7 @@
#if EFI_MC33816
#include "mc33816.h"
#include "mc33816_memory_map.h"
#include "engine_configuration.h"
#include "efi_gpio.h"
#include "hardware.h"
@ -68,7 +69,7 @@ static void showStats() {
static void mcRestart();
// Mostly unused
// Receive 16bits
unsigned short recv_16bit_spi() {
unsigned short ret;
//spiSelect(driver);
@ -93,14 +94,6 @@ static void spi_writew(unsigned short param) {
//spiUnselect(driver);
}
static unsigned short readId() {
spiSelect(driver);
spi_writew(0xBAA1);
unsigned short ID = recv_16bit_spi();
spiUnselect(driver);
return ID;
}
static void setup_spi() {
spiSelect(driver);
// Select Channel command
@ -117,6 +110,51 @@ static void setup_spi() {
spiUnselect(driver);
}
static unsigned short readId() {
spiSelect(driver);
spi_writew(0xBAA1);
unsigned short ID = recv_16bit_spi();
spiUnselect(driver);
return ID;
}
// Read a single word in Data RAM
unsigned short mcReadDram(MC33816Mem addr) {
unsigned short readValue;
spiSelect(driver);
// Select Channel command, Common Page
spi_writew(0x7FE1);
spi_writew(0x0004);
// read (MSB=1) at data ram x9 (SCV_I_Hold), and 1 word
spi_writew((0x8000 | addr << 5) + 1);
readValue = recv_16bit_spi();
spiUnselect(driver);
return readValue;
}
// Update a single word in Data RAM
void mcUpdateDram(MC33816Mem addr, unsigned short data) {
spiSelect(driver);
// Select Channel command, Common Page
spi_writew(0x7FE1);
spi_writew(0x0004);
// write (MSB=0) at data ram x9 (SCV_I_Hold), and 1 word
spi_writew((addr << 5) + 1);
spi_writew(data);
spiUnselect(driver);
}
void setBoostVoltage(float volts)
{
// Specifically for Discovery's ~4.5v 5v rail
unsigned short data = volts * 3.2;
mcUpdateDram(MC33816Mem::Vboost_high, data+1);
mcUpdateDram(MC33816Mem::Vboost_low, data-1);
// Remember to strobe driven!!
}
static bool check_flash() {
spiSelect(driver);
@ -395,6 +433,7 @@ static void mcRestart() {
flag0after = efiReadPin(CONFIG(mc33816_flag0));
if (flag0before || !flag0after) {
firmwareError(OBD_PCM_Processor_Fault, "MC33 flag0 transition no buena");
return;
}
}
@ -405,31 +444,13 @@ static void mcRestart() {
download_register(REG_DIAG); // download diag register configuration
// Finished downloading, let's run the code
enable_flash();
if (!check_flash()) {
firmwareError(OBD_PCM_Processor_Fault, "MC33 flash validation failed");
if(!check_flash())
{
firmwareError(OBD_PCM_Processor_Fault, "MC33 no flash");
return;
}
driven.setValue(1); // driven = HV
}
void update_scv(unsigned short current)
{
// Update a single word in Data RAM
spiSelect(driver);
// Select Channel command
spi_writew(0x7FE1);
// Common Page
spi_writew(0x0004);
// write (MSB=0) at data ram x9 (SCV_I_Hold), and 1 word
spi_writew((9 << 5) + 1);
spi_writew(current);
spiUnselect(driver);
// Strobe it to reload the value
//GPIO_ClearPinsOutput(GPIOE, 1<<PIN21_IDX); // SCV
//GPIO_SetPinsOutput(GPIOE, 1<<PIN21_IDX); // SCV
}
#endif /* EFI_MC33816 */

9
firmware/hw_layer/mc33816_memory_map.h Normal file
View File

@ -0,0 +1,9 @@
typedef enum {
Iboost = 0,
Ipeak = 1,
Vboost_high = 64,
Vboost_low = 65,
Isense4_high = 66,
Isense4_low = 67
} MC33816Mem;