The µC/TFTPc module has to be configured according to your specific needs. A template configuration file (tftp-c_cfg.h) is included in the module package (see section Directories and Files), and this configuration should be copied into your app_cfg.h file. Here is the list of the values and description of each of the configuration variable. However, keep in mind that future releases of this module might include more configuration options.
#define TFTPc_CFG_MAX_RX_TIMEOUT_MS 5000
#define TFTPc_CFG_MAX_TX_TIMEOUT_MS 5000
...