Tested transfer large files ~220kbytes is OK

21_m1284p_WIZNET_TFTP_client_FATFS/Internet/TFTP/tftp.c

@@ -21,6 +21,17 @@
 #ifdef F_STORAGE
 extern void save_data(uint8_t *data, uint32_t data_len, uint16_t block_number);
 
+static uint32_t g_tftp_save_data = 0;
+
+uint32_t get_tftp_received_size(void)
+{
+	return g_tftp_save_data;
+}
+
+void clear_tftp_received_size(void)
+{
+	g_tftp_save_data = 0;
+}
 void save_data(uint8_t *data, uint32_t data_len, uint16_t block_number)
 {
 	//Nothing to do with received data yet..
@@ -30,6 +41,7 @@ void save_data(uint8_t *data, uint32_t data_len, uint16_t block_number)
 	str = data;
 	str += data_len;
 	*str = 0x0;
+	g_tftp_save_data += data_len; //Store received data size
 	PRINTF("\r\n++Data #%d-%lu:\r\n%s\r\n", block_number, data_len, data);
 }
 #endif

21_m1284p_WIZNET_TFTP_client_FATFS/Internet/TFTP/tftp.h

@@ -102,6 +102,8 @@ void TFTP_exit(void);
 int TFTP_run(void);
 void TFTP_read_request(uint32_t server_ip, uint8_t *filename);
 void tftp_timeout_handler(void);
+uint32_t get_tftp_received_size(void);
+void clear_tftp_received_size(void);
 
 #ifdef __cplusplus
 }

21_m1284p_WIZNET_TFTP_client_FATFS/debug.log

@@ -1,12 +1,15 @@
 ########## SW1 was pressed.
 TFTP IP address : 192.168.0.100
 TFTP IP address (32 bit) : 0xC0A80064
-[TFTP_read_request] Set Tftp Server : 0xc0a80064
+[TFTP_read_request] Set Tftp Server : 0xC0A80064
 >> TFTP RRQ : FileName(test.txt), Mode(octet)
-[recv_tftp_packet] Set Server Port : 49769
+[recv_tftp_packet] Server IP faults
+from IP : 0x4B041004, Server IP : 0xC0A80064
+[recv_tftp_packet] Set Server Port : 53664
 << TFTP_OACK : 
 >> TFTP ACK : Block Number(0)
 << TFTP_DATA : opcode(3), block_num(1)
+
 ++Data #1-109:
 #1 Hello to TFTP server!
 #2 Hello to TFTP server again!
@@ -16,3 +19,13 @@ TFTP IP address (32 bit) : 0xC0A80064
 
 
 >> TFTP ACK : Block Number(1)
+
+++TFTP transfer complete:[2] SUCCESS, received 109 bytes
+
+..
+Last attemp on large file result (ff_lfn_required.c : 243509):
+
+>> TFTP ACK : Block Number(476)
+
+++TFTP transfer complete:[2] SUCCESS, received 243509 bytes
+

21_m1284p_WIZNET_TFTP_client_FATFS/main.c

@@ -10,8 +10,9 @@
  * Then prints out it contents head in a serial terminal.
  * TODO:
  * OK(v1.1) 1. Print-out received file from TFTP to serial console (small file < 512 bytes OK).
- * 2. Print-out received file from TFTP to serial console (multi-packet files > 512 bytes).
+ * OK(v1.2) 2. Print-out received file from TFTP to serial console (multi-packet files > 512 bytes).
  * 3. Write-in data to SD-card file "readme_txt".
+ * 4. Add handlers for CHK_RAM_LEAKAGE && CHK_UPTIME.
  *
  * Remark:
  * Checked with PC tftp-server (WIN7) - tftpd64.exe
@@ -60,7 +61,7 @@ volatile unsigned long _millis; // for millis tick !! Overflow every ~49.7 days
 //*********Program metrics
 const char compile_date[] PROGMEM    = __DATE__;     // Mmm dd yyyy - Дата компиляции
 const char compile_time[] PROGMEM    = __TIME__;     // hh:mm:ss - Время компиляции
-const char str_prog_name[] PROGMEM   = "\r\nAtMega1284p v1.1 Static IP TFTP Client && FATFS SDCARD WIZNET_5500 ETHERNET 25/03/2019\r\n"; // Program name
+const char str_prog_name[] PROGMEM   = "\r\nAtMega1284p v1.2 Static IP TFTP Client && FATFS SDCARD WIZNET_5500 ETHERNET 27/03/2019\r\n"; // Program name
 
 #if defined(__AVR_ATmega128__)
 const char PROGMEM str_mcu[] = "ATmega128"; //CPU is m128
@@ -565,9 +566,10 @@ int main()
 
 					printf("\r\n########## SW1 was pressed.\r\n");
 					memset(tftp_filename, 0x0, 20);
-					//strncpy(tftp_filename, "test.txt", TFTP_FILE_NAME_SIZE);
-					strncpy(tftp_filename, "README.md", TFTP_FILE_NAME_SIZE);
+					strncpy(tftp_filename, "test.txt", TFTP_FILE_NAME_SIZE);
+					//strncpy(tftp_filename, "README.md", TFTP_FILE_NAME_SIZE);
 					//strncpy(tftp_filename, "tftpd32.ini", TFTP_FILE_NAME_SIZE);
+					//strncpy(tftp_filename, "ff_lfn_required.c", TFTP_FILE_NAME_SIZE);
 
 					tftp_server = ((uint32_t)tftp_destip[0] << 24) | ((uint32_t)tftp_destip[1] << 16) | ((uint32_t)tftp_destip[2] << 8) | ((uint32_t)tftp_destip[3]);
 
@@ -577,23 +579,34 @@ int main()
 
 
 					TFTP_read_request(tftp_server, tftp_filename);
+					clear_tftp_received_size();
 
 					uint8_t _ret = 0;
-					//while(1) {
-					uint8_t i = 3;
-					while(i--){
+					while(1){
 						wdt_reset();
 						_ret = TFTP_run();
 						if(_ret != TFTP_PROGRESS)
+						{
+							//Print-out result TFTP complete
+							if(_ret == TFTP_SUCCESS)
+							{
+								PRINTF("\r\n++TFTP transfer complete:[%u] SUCCESS, received %lu bytes\r\n", _ret, get_tftp_received_size());
+							}
+							else if(_ret == TFTP_FAIL)
+							{
+								PRINTF("\r\n--TFTP transfer complete:[%u] FAIL, received %lu bytes\r\n", _ret, get_tftp_received_size());
+							}
+							else
+							{
+								PRINTF("\r\n??TFTP transfer complete:[%u] UNKNOWN, received %lu bytes\r\n\r\n", _ret, get_tftp_received_size());
+							}
 							break;
-						//_delay_ms(1);//Just for debug
+						}
 					}
 					_delay_ms(1000);
 
 					//!! Debug only
 					//PRINTF("SW1 is pressed\r\n");
-
-
 				}//if(prev_sw1)
 				prev_sw1 = 0; // Store SW1 state for next iteration
 			}//if(!sw1_read())