FT_STATUS ftdimut_setup() {
FT_STATUS ftStatus;
unsigned char timer;
ftStatus = FT_SetVIDPID(USB_VID, USB_PID);
if(ftStatus != FT_OK) return ftStatus;
ftStatus = FT_Open(0, &ftHandle);
if(ftStatus != FT_OK) return ftStatus;
ftStatus = FT_ResetDevice(ftHandle);
if(ftStatus != FT_OK) return ftStatus;
ftStatus = FT_Purge(ftHandle, FT_PURGE_RX | FT_PURGE_TX);
if(ftStatus != FT_OK) return ftStatus;
ftStatus = FT_SetBaudRate(ftHandle, 15625);
if(ftStatus != FT_OK) return ftStatus;
ftStatus = FT_SetDataCharacteristics(ftHandle, FT_BITS_8, FT_STOP_BITS_1, FT_PARITY_NONE);
if(ftStatus != FT_OK) return ftStatus;
ftStatus = FT_SetFlowControl(ftHandle, FT_FLOW_NONE, 0, 0);
if(ftStatus != FT_OK) return ftStatus;
ftStatus = FT_SetTimeouts(ftHandle, 1000, 1000);
if(ftStatus != FT_OK) return ftStatus;
ftStatus = FT_GetLatencyTimer(ftHandle, &timer);
if(ftStatus != FT_OK) return ftStatus;
ftStatus = FT_SetLatencyTimer(ftHandle, 1);
if(ftStatus != FT_OK) return ftStatus;
return FT_OK;
}
int D2xxSerial::getLatencyTimer() {
UCHAR ms;
FT_STATUS err = FT_GetLatencyTimer(handle, &ms);
if(err!=FT_OK) {
printf("Couldn't set latency timer, error: %s\n", getError(err));
}
return ms;
}
int CKMotionIO::SetLatency(UCHAR LatencyTimer)
{
FT_STATUS ftStatus;
unsigned char c;
Mutex->Lock();
ftStatus = FT_GetLatencyTimer (ftHandle, &c);
ftStatus = FT_SetLatencyTimer(ftHandle,LatencyTimer);
if (ftStatus == FT_OK)
{
ftStatus = FT_GetLatencyTimer (ftHandle, &c);
// LatencyTimer set
ftStatus = FT_SetChars (ftHandle, '\n', 1, 0,0);
if (ftStatus == FT_OK)
{
// Event set
Mutex->Unlock();
return 0;
}
else
{
// FT_SetLatencyTimer FAILED!
ErrorMessageBox("Unable to set USB Event Character");
Mutex->Unlock();
return 1;
}
}
else
{
// FT_SetLatencyTimer FAILED!
ErrorMessageBox("Unable to set USB Latency timer");
Mutex->Unlock();
return 1;
}
}
static int ublast_ftd2xx_init(struct ublast_lowlevel *low)
{
FT_STATUS status;
FT_HANDLE *ftdih = ublast_getftdih(low);
uint8_t latency_timer;
LOG_INFO("usb blaster interface using FTD2XX");
/* Open by device description */
if (low->ublast_device_desc == NULL) {
LOG_WARNING("no usb blaster device description specified, "
"using default 'USB-Blaster'");
low->ublast_device_desc = "USB-Blaster";
}
#if IS_WIN32 == 0
/* Add non-standard Vid/Pid to the linux driver */
status = FT_SetVIDPID(low->ublast_vid, low->ublast_pid);
if (status != FT_OK) {
LOG_WARNING("couldn't add %4.4x:%4.4x",
low->ublast_vid, low->ublast_pid);
}
#endif
status = FT_OpenEx(low->ublast_device_desc, FT_OPEN_BY_DESCRIPTION,
ftdih);
if (status != FT_OK) {
DWORD num_devices;
LOG_ERROR("unable to open ftdi device: %s",
ftd2xx_status_string(status));
status = FT_ListDevices(&num_devices, NULL, FT_LIST_NUMBER_ONLY);
if (status == FT_OK) {
char **desc_array =
malloc(sizeof(char *) * (num_devices + 1));
unsigned int i;
for (i = 0; i < num_devices; i++)
desc_array[i] = malloc(64);
desc_array[num_devices] = NULL;
status = FT_ListDevices(desc_array, &num_devices,
FT_LIST_ALL | FT_OPEN_BY_DESCRIPTION);
if (status == FT_OK) {
LOG_ERROR("ListDevices: %" PRIu32, (uint32_t)num_devices);
for (i = 0; i < num_devices; i++)
LOG_ERROR("%i: %s", i, desc_array[i]);
}
for (i = 0; i < num_devices; i++)
free(desc_array[i]);
free(desc_array);
} else {
printf("ListDevices: NONE\n");
}
return ERROR_JTAG_INIT_FAILED;
}
status = FT_SetLatencyTimer(*ftdih, 2);
if (status != FT_OK) {
LOG_ERROR("unable to set latency timer: %s",
ftd2xx_status_string(status));
return ERROR_JTAG_INIT_FAILED;
}
status = FT_GetLatencyTimer(*ftdih, &latency_timer);
if (status != FT_OK) {
LOG_ERROR("unable to get latency timer: %s",
ftd2xx_status_string(status));
return ERROR_JTAG_INIT_FAILED;
}
LOG_DEBUG("current latency timer: %i", latency_timer);
status = FT_SetBitMode(*ftdih, 0x00, 0);
if (status != FT_OK) {
LOG_ERROR("unable to disable bit i/o mode: %s",
ftd2xx_status_string(status));
return ERROR_JTAG_INIT_FAILED;
}
return ERROR_OK;
}
