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newrpl/usbselector.cpp
claudiol c49ad8f462 Added option to set DATE and TIME via USB. 
Fixed bug in Nelder-Mead algorithm that failed convergence.
2021-09-28 16:50:56 -04:00

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#include <QMessageBox>
#include <QTreeWidget>
#include <QTreeWidgetItem>
#include <QTreeWidgetItemIterator>
#include <QTimer>
#include <QStandardPaths>
#include <QFileDialog>
#include <QCloseEvent>
#include <QDateTime>
#include "hidapi.h"
#include "usbselector.h"
#include "ui_usbselector.h"
// ONLY REQUIRED UNDER MINGW
#ifdef DrawText
#undef DrawText
#endif
#define WORD _WORD
extern "C"
{
#include "cmdcodes.h"
#include "hal_api.h"
#include "libraries.h"
#include "newrpl.h"
extern hid_device *__usb_curdevice;
extern char __usb_devicepath[8192];
extern volatile int __usb_paused;
int __fwupdate_progress;
int __fwupdate_address;
int __fwupdate_nwords;
BYTEPTR __fwupdate_buffer;
BINT64 rplObjChecksum(WORDPTR object);
}
USBSelector::USBSelector(QWidget * parent):
QDialog(parent), update_thread(this), ui(new Ui::USBSelector)
{
ui->setupUi(this);
SelectedDevicePath.clear();
SelectedDeviceName.clear();
ui->updateFirmware->hide();
ui->syncTime->hide();
ui->updateProgress->hide();
ui->USBtreeWidget->clear();
ui->USBtreeWidget->hideColumn(1);
ui->USBtreeWidget->hideColumn(3);
ui->USBtreeWidget->hideColumn(4);
norefresh = false;
connect(&update_thread, SIGNAL(FirmwareUpdateError(QString)), this,
SLOT(on_Error(QString)));
QTimer::singleShot(200, this, SLOT(refresh()));
}
void USBSelector::on_Error(QString message)
{
QString info =
"\nIf the device doesn't react anymore, please use the standard HP firmware update procedure to flash the newRPL firmware again.";
QMessageBox warn(QMessageBox::Warning,
"Communication error while sending firmware", message + info,
QMessageBox::Ok, this);
warn.exec();
}
USBSelector::~USBSelector()
{
delete ui;
}
void USBSelector::closeEvent(QCloseEvent * event)
{
if(!update_thread.isRunning())
event->accept();
else
event->ignore();
}
void USBSelector::reject()
{
if(!update_thread.isRunning())
QDialog::reject();
}
void USBSelector::on_USBtreeWidget_itemSelectionChanged()
{
QString result;
result.clear();
QTreeWidgetItem *newitem;
if(ui->USBtreeWidget->selectedItems().count() >= 1)
newitem = ui->USBtreeWidget->selectedItems().first();
else {
return;
}
if(newitem->text(2) == QString("[Device not responding]")) {
ui->buttonBox->setStandardButtons(QDialogButtonBox::Cancel);
SelectedDevicePath.clear();
SelectedDeviceName.clear();
ui->selectedCalc->setText(QString("No device selected."));
ui->updateFirmware->hide();
ui->syncTime->hide();
}
else {
ui->buttonBox->
setStandardButtons(QDialogButtonBox::Ok | QDialogButtonBox::
Cancel);
SelectedDevicePath = newitem->text(3);
SelectedDeviceName =
newitem->text(0) + QString("[build ") +
newitem->text(2).right(4) + QString("]");
ui->selectedCalc->setText(SelectedDeviceName);
ui->updateFirmware->show();
ui->syncTime->show();
}
}
QString & USBSelector::getSelectedDevicePath()
{
return SelectedDevicePath;
}
QString & USBSelector::getSelectedDeviceName()
{
return SelectedDeviceName;
}
void USBSelector::RefreshList()
{
struct hid_device_info *devs, *cur_dev;
QTreeWidgetItem *newitem;
// MAKE SURE WE CLOSE EVERYTHING AND RESET THE ENTIRE LIBRARY BEFORE ENUMERATION
usb_shutdown();
devs = hid_enumerate(0x0, 0x0);
if(!devs) {
ui->USBtreeWidget->clear();
return;
}
cur_dev = devs;
QString result;
result.clear();
{
// FIRST DISABLE ALL ITEMS IN THE LIST
QTreeWidgetItemIterator it(ui->USBtreeWidget);
while(*it) {
(*it)->setDisabled(true);
++it;
}
}
QString manuf;
QString tmp;
QString pid;
QString newpath;
while(cur_dev) {
if(cur_dev->manufacturer_string)
manuf = QString::fromStdWString(cur_dev->manufacturer_string);
else
manuf.clear();
manuf.detach();
if(manuf.startsWith("newRPL")) {
pid = QString::number(cur_dev->vendor_id,
16) + ":" + QString::number(cur_dev->product_id, 16);
newpath = QString(cur_dev->path);
newpath.detach();
int nitems = ui->USBtreeWidget->topLevelItemCount();
int k;
QTreeWidgetItem *item;
newitem = 0;
for(k = 0; k < nitems; ++k) {
item = ui->USBtreeWidget->topLevelItem(k);
if(item) {
if((item->text(4) == pid) && (item->text(3) == newpath)) {
// FOUND THE SAME ITEM AGAIN
newitem = item;
item->setDisabled(false);
break;
}
}
}
if(!newitem) {
newitem = new QTreeWidgetItem();
if(!newitem)
return;
newitem->setText(0, "Empty");
newitem->setText(1, "Empty");
newitem->setText(2, "Empty");
newitem->setText(3, "Empty");
newitem->setText(4, "Empty");
ui->USBtreeWidget->addTopLevelItem(newitem);
}
if(cur_dev->product_string)
tmp = QString::fromStdWString(cur_dev->product_string);
else
tmp = "[Unknown]";
if(cur_dev->serial_number)
tmp += QString("|SN=") +
QString::fromStdWString(cur_dev->serial_number);
tmp.detach();
newitem->setText(0, tmp);
if(cur_dev->manufacturer_string)
tmp = QString::fromStdWString(cur_dev->manufacturer_string);
else
tmp = "[Unknown]";
tmp.detach();
newitem->setText(1, tmp);
tmp = QString::number(cur_dev->vendor_id,
16) + ":" + QString::number(cur_dev->product_id, 16);
tmp.detach();
newitem->setText(4, tmp);
newitem->setText(3, newpath);
}
cur_dev = cur_dev->next;
}
hid_free_enumeration(devs);
// NOW ELIMINATE ANY ITEMS THAT ARE NOT ENABLED
{
int restart = 1;
while(restart) {
int nitems = ui->USBtreeWidget->topLevelItemCount();
if(nitems == 0)
break;
int k;
QTreeWidgetItem *item;
for(k = 0; k < nitems; ++k) {
item = ui->USBtreeWidget->topLevelItem(k);
if(item) {
if(item->isDisabled()) {
if(SelectedDevicePath == item->text(3)) {
ui->buttonBox->
setStandardButtons(QDialogButtonBox::
Cancel);
SelectedDevicePath.clear();
ui->selectedCalc->
setText(QString("No device selected."));
ui->USBtreeWidget->clearSelection();
ui->updateFirmware->hide();
ui->syncTime->hide();
}
QTreeWidgetItem *pparent = item->parent();
if(pparent)
pparent->removeChild(item);
delete item;
restart = 1;
break;
}
// THE DEVICE IS ACTIVE
tmp = item->text(3);
tmp.detach();
// STOP THE DRIVER AND REINITIALIZE COMPLETELY
__usb_paused = 1;
while(__usb_paused >= 0);
usb_shutdown();
// SET THE DRIVER TO USE THIS DEVICE AND START THE DRIVER
if(safe_stringcpy(__usb_devicepath, 8192,
tmp.toUtf8().constData()))
__usb_devicepath[0] = 0;
__usb_timeout = 200; // SET TIMEOUT TO 200 ms FOR QUICK DETECTION
usb_init(0); // FORCE REINITIALIZATION, CLOSE ANY PREVIOUS HANDLES IF THEY EXIST
if(usb_isconnected()) {
unsigned char buffer[1024];
int res;
int available = 0;
__usb_paused = 0;
do {
usb_sendcontrolpacket(P_TYPE_GETSTATUS);
tmr_t start, end;
// WAIT FOR THE CONTROL PACKET TO BE SENT
start = tmr_ticks();
res = 1;
while(__usb_drvstatus & USB_STATUS_TXCTL) {
if((__usb_drvstatus & (USB_STATUS_CONFIGURED |
USB_STATUS_INIT |
USB_STATUS_CONNECTED)) !=
(USB_STATUS_CONFIGURED | USB_STATUS_INIT
| USB_STATUS_CONNECTED))
break;
QThread::yieldCurrentThread();
end = tmr_ticks();
if(tmr_ticks2ms(start, end) > __usb_timeout) {
res = 0;
break;
}
}
if(!res)
break;
if(!usb_waitforreport()) {
res = 0;
break;
}
// WAIT FOR A RESPONSE
USB_PACKET *pkt = usb_getreport();
if(P_FILEID(pkt) != 0) {
// REQUEST UNCONDITIONAL ABORT
__usb_fileid = 0xffff;
usb_sendcontrolpacket(P_TYPE_ABORT);
__usb_fileid = 0;
tmr_t start, end;
// WAIT FOR THE CONTROL PACKET TO BE SENT
start = tmr_ticks();
while(__usb_drvstatus & USB_STATUS_TXCTL) {
if((__usb_drvstatus & (USB_STATUS_CONFIGURED
| USB_STATUS_INIT |
USB_STATUS_CONNECTED)) !=
(USB_STATUS_CONFIGURED |
USB_STATUS_INIT |
USB_STATUS_CONNECTED))
break;
QThread::yieldCurrentThread();
end = tmr_ticks();
if(tmr_ticks2ms(start, end) > __usb_timeout) {
res = 0;
break;
}
}
if(!res) break;
continue;
}
usb_releasereport();
if(!res)
break;
// GOT AN ANSWER, MAKE SURE REMOTE IS READY TO RECEIVE
if(__usb_drvstatus & (USB_STATUS_HALT |
USB_STATUS_ERROR)) {
res = 0;
break;
}
// ATTEMPT TO SEND SOMETHING TO SEE IF IT'S ACTIVELY RESPONDING
uint32_t getversion[6] = {
MKPROLOG(SECO, 5), // ACTUAL DATA
CMD_VERSION,
CMD_DROP,
CMD_USBSEND,
CMD_DROP,
CMD_QSEMI
};
int fileid;
res = fileid = usb_txfileopen('O');
if(!res)
break;
res = usb_filewrite(fileid, (BYTEPTR) getversion,
6 * sizeof(uint32_t));
if(!res)
break;
res = usb_txfileclose(fileid);
if(!res)
break;
// WAIT FOR THE FILE TO ARRIVE
start = tmr_ticks();
res = 1;
while(!usb_hasdata()) {
if((__usb_drvstatus & (USB_STATUS_CONFIGURED |
USB_STATUS_INIT |
USB_STATUS_CONNECTED)) !=
(USB_STATUS_CONFIGURED | USB_STATUS_INIT
| USB_STATUS_CONNECTED))
break;
QThread::yieldCurrentThread();
end = tmr_ticks();
if(tmr_ticks2ms(start, end) > __usb_timeout) {
res = 0;
break;
}
}
if(!res)
break;
res = fileid = usb_rxfileopen();
if(!res)
break;
res = usb_fileread(fileid, buffer, 1024);
if(!res)
break;
usb_rxfileclose(fileid);
{
unsigned int strprolog;
strprolog =
buffer[0] + (buffer[1] << 8) +
(buffer[2] << 16) + (buffer[3] << 24);
int length = rplStrSize(&strprolog);
tmp = QString::fromUtf8((char *)(buffer + 4),
length);
tmp.detach();
available = 1;
}
}
while(!available);
__usb_paused = 1;
while(__usb_paused >= 0);
usb_shutdown();
__usb_curdevice = 0;
__usb_timeout = 5000; // SET TIMEOUT TO THE DEFAULT 5000ms
if(!available) {
tmp = "[Device not responding]";
}
item->setText(2, tmp);
}
restart = 0;
}
}
}
__usb_timeout = 5000; // MAKE SURE WE LEAVE THE TIMEOUT TO THE DEFAULT VALUE
}
ui->USBtreeWidget->resizeColumnToContents(0);
// DONE, THE LIST WAS REFRESHED
}
void USBSelector::on_USBSelector_accepted()
{
}
void USBSelector::on_USBSelector_rejected()
{
}
void USBSelector::refresh()
{
if(norefresh)
return;
RefreshList();
QTimer::singleShot(500, this, SLOT(refresh()));
}
void USBSelector::on_syncTime_clicked()
{
// STOP REFRESHING THE LIST
norefresh = true;
// PROGRAM TO SET THE CURRENT DATE
uint32_t setdate[22] = {
MKPROLOG(SECO, 21), // ACTUAL DATA
0,0,0, // PLACEHOLDERS FOR YEAR MONTH DAY
MAKESINT(FL_DATEFORMAT),
CMD_IF,
CMD_FCTEST,
CMD_THEN,
CMD_SWAP, // IF FLAG CLEAR MEANS MM.DDYYYY
CMD_ENDIF,
CMD_SWAP,
MAKESINT(100),
CMD_OVR_DIV,
CMD_OVR_ADD,
CMD_SWAP,
MAKESINT(10000),
CMD_OVR_DIV,
MAKESINT(100),
CMD_OVR_DIV,
CMD_OVR_ADD,
CMD_SETDATE,
CMD_QSEMI
};
// PROGRAM TO SET THE CURRENT DATE
uint32_t settime[12] = {
MKPROLOG(SECO, 11), // ACTUAL DATA
0,0,0, // PLACEHOLDERS FOR HOUR, MINUTES, SECONDS
MAKESINT(100),
CMD_OVR_DIV,
CMD_OVR_ADD,
MAKESINT(100),
CMD_OVR_DIV,
CMD_OVR_ADD,
CMD_SETTIME,
CMD_QSEMI
};
// Get system date
QDateTime t=QDateTime::currentDateTime();
// SET THE DATE INSIDE THE PROGRAM
setdate[1]=MAKESINT(t.date().year());
setdate[2]=MAKESINT(t.date().month());
setdate[3]=MAKESINT(t.date().day());
settime[1]=MAKESINT(t.time().hour());
settime[2]=MAKESINT(t.time().minute());
settime[3]=MAKESINT(t.time().second());
if(safe_stringcpy(__usb_devicepath, 8192,
SelectedDevicePath.toUtf8().constData()))
__usb_devicepath[0] = 0;
__usb_paused=0;
usb_init(0);
tmr_t start, end;
// WAIT FOR THE CONNECTION TO BE ESTABLISHED
start = tmr_ticks();
int res = 1;
while(1) {
if(usb_isconnected())
break;
QThread::yieldCurrentThread();
end = tmr_ticks();
if(tmr_ticks2ms(start, end) > __usb_timeout) {
res = 0;
break;
}
}
if(!res)
goto failed;
// SEND THE PROGRAM
int fileid;
res = fileid = usb_txfileopen('O');
if(!res)
goto failed;
res = usb_filewrite(fileid, (BYTEPTR) setdate,
22 * sizeof(uint32_t));
if(!res)
goto failed;
res = usb_txfileclose(fileid);
if(!res)
goto failed;
// SEND THE PROGRAM
res = fileid = usb_txfileopen('O');
if(!res)
goto failed;
res = usb_filewrite(fileid, (BYTEPTR) settime,
12 * sizeof(uint32_t));
if(!res)
goto failed;
res = usb_txfileclose(fileid);
failed:
// PUT THE USB DRIVER TO REST
__usb_paused = 1;
while(__usb_paused >= 0);
usb_shutdown();
// START REFRESHING THE LIST AGAIN
norefresh = false;
QTimer::singleShot(500, this, SLOT(refresh()));
}
extern "C" int usbremotefwupdatestart();
extern "C" int usbsendtoremote(uint32_t * data, int nwords);
void USBSelector::on_updateFirmware_clicked()
{
// STOP REFRESHING THE LIST
norefresh = true;
QString path;
// THIS IS ONLY FOR 50g/40g/39g HARDWARE
// TODO: IMPROVE ON THIS FOR OTHER HARDWARE PLATFORMS
unsigned int address;
unsigned int nwords;
path = QStandardPaths::locate(QStandardPaths::DocumentsLocation, "newRPL",
QStandardPaths::LocateDirectory);
if(path.isEmpty())
path = QStandardPaths::writableLocation(QStandardPaths::
DocumentsLocation);
QString fname =
QFileDialog::getOpenFileName(this,
"Select firmware file to send to calculator", path,
"firmware binary files (*.bin *.* *)");
if(!fname.isEmpty()) {
QFile file(fname);
if(!file.open(QIODevice::ReadOnly)) {
QMessageBox a(QMessageBox::Warning, "Error while opening",
"Cannot open file " + fname, QMessageBox::Ok, this);
a.exec();
norefresh = false;
QTimer::singleShot(500, this, SLOT(refresh()));
return;
}
// FILE IS OPEN AND READY FOR READING
filedata = file.readAll();
file.close();
const char *calc_types[]={
"newRPL Calc",
"newRPL 50g",
"newRPL 39gs",
"newRPL 40gs",
"newRPL 48g2",
"newRPL PrG1",
0
};
const char *preamble_strings[]={
"KINPOUPDATEIMAGE",
"KINPOUPDATEIMAGE",
"KINPOHP39G+IMAGE",
"KINPOHP40G+IMAGE",
"KINPOHP48GIIMAGE",
"2416",
0
};
const int preamble_offset[]={
0,
0,
0,
0,
0,
24,
0
};
// CHECK IF VALID FIRMWARE WAS SELECTED
int calcidx=0;
while(calc_types[calcidx]) {
if(SelectedDeviceName.startsWith(calc_types[calcidx])) break;
++calcidx;
}
if(calc_types[calcidx]==nullptr) {
QMessageBox a(QMessageBox::Warning, "Device NOT Supported",
SelectedDeviceName + ": Firmware update not supported on this device", QMessageBox::Ok, this);
a.exec();
// START REFRESHING THE LIST AGAIN
norefresh = false;
QTimer::singleShot(500, this, SLOT(refresh()));
return;
}
// HERE WE HAVE THE INDEX OF A SUPPORTED DEVICE
//
// THIS IS ONLY VALID FOR 50G AND COUSINS, FIX LATER
const char *preamblestring = filedata.constData();
preamblestring+=preamble_offset[calcidx];
int bytelen=strlen(preamble_strings[calcidx]);
// CHECK IF SELECTED FIRMWARE IS VALID FOR THE TARGET
if( ((calcidx>0) && (strncmp(preamblestring,preamble_strings[calcidx],bytelen)!=0)) // DEVICES USING NEW FIRMWARES, FROM NOW ON
|| ((calcidx==0) && (strncmp(preamblestring,preamble_strings[1],bytelen)!=0) &&
(strncmp(preamblestring,preamble_strings[2],bytelen)!=0) &&
(strncmp(preamblestring,preamble_strings[3],bytelen)!=0) &&
(strncmp(preamblestring,preamble_strings[4],bytelen)!=0)) ) // HANDLE SPECIAL CASE OF OLD FIRMWARES USING "newRPL Calc" FOR ALL DEVICES
{
// THIS IS NOT A VALID FIRMWARE IMAGE
QMessageBox a(QMessageBox::Warning, "Invalid firmware image",
"Selected file does not contain a valid image for this target device", QMessageBox::Ok, this);
a.exec();
// START REFRESHING THE LIST AGAIN
norefresh = false;
QTimer::singleShot(500, this, SLOT(refresh()));
return;
}
address = 0x4000;
nwords = filedata.size() >> 2;
if(calcidx<5) filedata.replace(0, 16, "Kinposhcopyright");
QMessageBox warn(QMessageBox::Warning, "Firmware update",
"Firmware on the remote device is about to be updated. Do NOT disconnect the device. OK to proceed?",
QMessageBox::Yes | QMessageBox::No, this);
if(warn.exec() == QMessageBox::No) {
// START REFRESHING THE LIST AGAIN
norefresh = false;
QTimer::singleShot(500, this, SLOT(refresh()));
return;
}
}
else {
// START REFRESHING THE LIST AGAIN
norefresh = false;
QTimer::singleShot(500, this, SLOT(refresh()));
return;
}
ui->USBtreeWidget->setEnabled(false);
ui->updateFirmware->setEnabled(false);
ui->updateProgress->setRange(0, nwords);
ui->updateProgress->show();
ui->updateProgress->setValue(0);
ui->buttonBox->setEnabled(false);
// CONNECT TO THE USB DEVICE
__usb_paused = 1;
while(__usb_paused >= 0);
usb_shutdown();
if(safe_stringcpy(__usb_devicepath, 8192,
SelectedDevicePath.toUtf8().constData()))
__usb_devicepath[0] = 0;
usb_init(0);
__fwupdate_progress = 0;
if(!usb_isconnected()) {
// TODO: ERROR PROCESS
// START REFRESHING THE LIST AGAIN
finishedupdate();
return;
}
__fwupdate_progress = 0;
__fwupdate_address = address;
__fwupdate_nwords = nwords;
__fwupdate_buffer = (BYTEPTR) filedata.constData();
connect(&update_thread, SIGNAL(finished()), this, SLOT(finishedupdate()));
update_thread.start();
while(!update_thread.isRunning()); // WAIT FOR THE THREAD TO START
// START REPORTING PROGRESS
QTimer::singleShot(0, this, SLOT(updateprogress()));
}
void USBSelector::finishedupdate()
{
// PUT THE USB DRIVER TO REST
__usb_paused = 1;
while(__usb_paused >= 0);
usb_shutdown();
//ui->USBtreeWidget->clear();
ui->USBtreeWidget->setEnabled(true);
ui->updateFirmware->setEnabled(true);
ui->updateProgress->hide();
ui->updateProgress->setValue(0);
ui->buttonBox->setEnabled(true);
numberoftries = 0;
norefresh = false;
// AND JUST HOPE IT WILL RECONENCT SOME TIME
// START REFRESHING THE LIST AGAIN
QTimer::singleShot(0, this, SLOT(refresh()));
}
void USBSelector::updateprogress()
{
if(!update_thread.isRunning())
return;
ui->updateProgress->setValue(__fwupdate_progress);
QTimer::singleShot(0, this, SLOT(updateprogress()));
}
// ****************************************** USB DRIVER ON A SEPARATE THREAD
FWThread::FWThread(QObject * parent)
: QThread(parent)
{
}
FWThread::~FWThread()
{
}
static void busywait(int ms)
{
tmr_t start, end;
start = tmr_ticks();
do {
end = tmr_ticks();
}
while(tmr_ticks2ms(start, end) < ms);
}
static QString send_package(int nwords, int offset)
{
WORD header[3];
int fileid;
fileid=usb_txfileopen('W');
if(!fileid) {
return "Could not initiate package transmission";
}
// SEND FIRMWARE BLOCK MARKER
header[0]=TEXT2WORD('F','W','U','P');
header[1]=__fwupdate_address+(offset<<2);
header[2]=nwords;
if(!usb_filewrite(fileid,(BYTEPTR)header,3*sizeof(WORD))) {
return "Could not send data to usb device";
}
BYTEPTR buffer=__fwupdate_buffer+offset*sizeof(WORD);
if(!usb_filewrite(fileid,buffer,nwords*sizeof(WORD))) {
return "Could not send data to usb device";
}
if(!usb_txfileclose(fileid)) {
return "Could not finalize package transmission";
}
return QString();
}
static QString send_reset()
{
WORD header[3];
int fileid;
fileid=usb_txfileopen('W');
if(!fileid) {
return "Could not initiate reset";
}
header[0]=TEXT2WORD('F','W','U','P');
header[1]=0xffffffff;
header[2]=0;
if(!usb_filewrite(fileid,(BYTEPTR)header,3*sizeof(WORD))) {
return "Could not initiate reset";
}
if(!usb_txfileclose(fileid)) {
return "Could not initiate reset";
}
return QString();
}
void FWThread::run()
{
int nwords = __fwupdate_nwords;
__fwupdate_progress = 0;
// START USB DRIVER
__usb_paused = 0;
// WAIT 200ms BEFORE STARTING ANOTHER CONVERSATION WITH THE DEVICE
busywait(200);
// SEND CMD_USBFWUPDATE TO THE CALC
if(!usbremotefwupdatestart()) {
emit FirmwareUpdateError("Could not send firmware update command");
return;
}
// WAIT 500ms BEFORE STARTING ANOTHER CONVERSATION WITH THE DEVICE
busywait(500);
while(nwords > 0) {
int size = std::min(1024, nwords);
QString error = send_package(size, __fwupdate_progress);
if (!error.isEmpty()) {
emit FirmwareUpdateError(error);
// still going to reset the device...
break;
}
nwords-=size;
__fwupdate_progress+=size;
}
// WAIT TWO FULL SECONDS BEFORE STARTING ANOTHER CONVERSATION WITH THE DEVICE
busywait(2000);
QString error = send_reset();
if (!error.isEmpty()) {
emit FirmwareUpdateError(error);
}
}
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