void memTest(void) {
int memSize = 8 * 1024 * 1024; // 8MB
void *base;
base = (void *)0xC0000000;
int i;
// 4MB test
const uint32_t a = 22695477;
const uint32_t c = 1;
//write
volatile int iter = 0;
volatile int niter = 16;
volatile int niter2 = 16;
// linear write with linear congruential generator values
// 362 ms execution cycle at 8MB : 22MB/s read+write+compute
for (iter = 0; iter < niter; iter++) {
uint32_t x = iter;
// write
for (i = 0; i < memSize / 4; i++) {
x = (a * x) + c;
//
((volatile uint32_t *)base)[i] = x;
}
// read/verify
x = iter;
for (i = 0; i < memSize / 4; i++) {
x = (a * x) + c;
if (((volatile uint32_t *)base)[i] != x) {
setErrorFlag(ERROR_SDRAM);
while (1) {
chThdSleepMilliseconds(100);
}
}
}
}
// scattered byte write at linear congruential generator addresses
// 300 ms execution time for one iteration: 3.3M scattered read+write per second
// equals 68
for (iter = 0; iter < niter2; iter++) {
uint32_t x = iter;
// write
for (i = 0; i < 1024 * 1024; i++) {
x = (a * x) + c;
((volatile uint8_t *)base)[x & (memSize - 1)] = (uint8_t)i;
}
// read/verify
x = iter;
for (i = 0; i < 1024 * 1024; i++) {
x = (a * x) + c;
if (((volatile uint8_t *)base)[x & (memSize - 1)] != (uint8_t)i) {
setErrorFlag(ERROR_SDRAM);
while (1) {
chThdSleepMilliseconds(100);
}
}
}
}
}
TCP_NetClient::TCP_NetClient(const char hostname[], ushort port) : TCP_NetBase()
{
IPaddress addr;
SDLNet_ResolveHost(&addr, hostname, port); //TODO NET change from local host to real session later
mySocket = SDLNet_TCP_Open(&addr);
if (mySocket == NULL) {
NETMSG("Failed to initialize TCP client socket");
setErrorFlag();
return;
}
recvThread = SDL_CreateThread(reinterpret_cast<int (*)(void *)>(recvThreadFunc), this);
if (recvThread == NULL) {
NETMSG("Failed to initialize TCP client receive thread");
setErrorFlag();
return;
}
}
TCP_NetServer::TCP_NetServer(ushort port) : TCP_NetBase(),
remoteMutex(SDL_CreateMutex())
{
memset(&remote, 0, sizeof(remote));
IPaddress addr;
addr.host = INADDR_ANY;
SDLNet_Write16(port, &addr.port);
mySocket = SDLNet_TCP_Open(&addr);
if (mySocket == NULL) {
NETMSG("Failed to initialize TCP server socket");
setErrorFlag();
return;
}
}