int main(int argc, char *argv[]){
int gpio = atoi(argv[1]);
unsigned int i;
gpioExport(gpio);
gpioDirection(gpio, gpioDIRECTION_IN);
while(1){
printf("Read: %c\n", gpioRead(gpio));
for(i=0; i<9000000; ++i);
}
return 0;
}
/*
* Frontend of STM programmer
*/
void Stm32p::startProgram()
{
vddStateSet(false);
QThread::msleep(300);
gpioDirection(GPIO_OUT);
/* GPIO low when reset released enters bootloader */
gpioStateSet(false);
vddStateSet(true);
/* The voltagesupervisor keeps reset active for max 300ms */
QThread::msleep(400);
QByteArray bootloaderVersion = STM32->cmdGetBootloaderVersion();
if (bootloaderVersion == QByteArray())
qCritical() << "Get Version Failed";
else
printf("Bootloader version v%s.%s\n", qPrintable(bootloaderVersion.toHex().at(0)), qPrintable(bootloaderVersion.toHex().at(1)));
QByteArray chipId = STM32->cmdGetId();
if (chipId == QByteArray())
qCritical() << "Get ID Failed";
else
printf("Device id is 0x%s\n", qPrintable(chipId.toHex()));
if (!hexFile.open(QIODevice::ReadOnly | QIODevice::Text))
{
qCritical() << "Error opening file";
return;
}
QByteArray data;
unsigned long address = 0;
QTextStream infile(&hexFile);
while (parseHex(&infile, &address, &data))
{
for (int i=0; i<sectorErased.size(); ++i)
if (address >= sectorStartAddress.at(i) && address <= sectorEndAddress.at(i) && !sectorErased.at(i))
{
printf("Erasing sector %d (0x%08lx...%08lx)\n", i, sectorStartAddress.at(i), sectorEndAddress.at(i));
STM32->cmdEraseMemory(i);
sectorErased.replace(i, true);
}
printf("Programming 0x%08lx\r", address);
STM32->cmdWriteMemory(address, data);
}
printf("\n");
doneProgramming = true;
}
bool SysfsGPIO::configureGPIO(GPIO_Pin gpionr, QString direction)
{
//First check that the export file is there,
//if it is missing then the sysfs gpio "module" is not loaded.
QFile gpioExport("/sys/class/gpio/export");
if(!gpioExport.exists())
{
myErr() << "missing file: /sys/class/gpio/export";
return false;
}
//If value does not exist then export
QFile gpioDirection(QString("/sys/class/gpio/gpio%1/direction").arg(gpionr));
if(!gpioDirection.exists())
{
//myOut() << gpioDirection.fileName();
if (!gpioExport.open(QIODevice::WriteOnly | QIODevice::Text))
{
myErr() << gpioExport.fileName();
return false;
}
QTextStream out(&gpioExport);
out << gpionr << "\n";
gpioExport.close();
sleep(1);
}
{
if (!gpioDirection.open(QIODevice::WriteOnly | QIODevice::Text))
{
myErr() << gpioDirection.fileName();
return false;
}
QTextStream out(&gpioDirection);
out << direction << "\n";
gpioDirection.close();
}
return true;
}
