Write-in data to SD-card file "readme_txt" and another patterns during

TFTP transfer session - SUCCESS.

21_m1284p_WIZNET_TFTP_client_FATFS/.cproject

@@ -35,6 +35,7 @@
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/${ProjName}/Ethernet/W5500}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/${ProjName}/Application/loopback}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/${ProjName}/ff}&quot;"/>
+									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/${ProjName}/Internet/TFTP}&quot;"/>
 								</option>
 								<inputType id="de.innot.avreclipse.compiler.winavr.input.167604838" name="C Source Files" superClass="de.innot.avreclipse.compiler.winavr.input"/>
 							</tool>
@@ -76,5 +77,9 @@
 		</scannerConfigBuildInfo>
 	</storageModule>
 	<storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>
-	<storageModule moduleId="refreshScope"/>
+	<storageModule moduleId="refreshScope" versionNumber="2">
+		<configuration configurationName="Release">
+			<resource resourceType="PROJECT" workspacePath="/21_m1284p_WIZNET_TFTP_client_FATFS"/>
+		</configuration>
+	</storageModule>
 </cproject>

21_m1284p_WIZNET_TFTP_client_FATFS/Internet/TFTP/tftp.c

@@ -19,7 +19,7 @@
 
 /* Extern Functions ---------------------------------------------*/
 #ifdef F_STORAGE
-extern void save_data(uint8_t *data, uint32_t data_len, uint16_t block_number);
+extern uint8_t save_data(uint8_t *data, uint32_t data_len, uint16_t block_number);
 
 static uint32_t g_tftp_save_data = 0;
 
@@ -32,17 +32,53 @@ 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)
+
+void close_tftp_file(void)
+{
+	if(tftp_fr == FR_OK)
+	{
+		tftp_fr = f_close(&tftp_fil);
+		if(tftp_fr != FR_OK){
+			PRINTF("--f_close failed\r\n");
+		}
+	}
+}
+
+uint8_t save_data(uint8_t *data, uint32_t data_len, uint16_t block_number)
 {
+	uint8_t save_data_result = 0;
+#ifdef TFTP_RCV_DBG
 	//Nothing to do with received data yet..
 	//TODO: Add your own handler here
-	//Print out data as string
+	//Print out received data as string
 	uint8_t * str;
 	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
+	//Calculate received data size
+	g_tftp_save_data += data_len;
+	//Save TFTP block to file
+	if(tftp_fr == FR_OK)
+	{
+		uint16_t _blocklen;
+		tftp_fr = 	f_write(&tftp_fil, data, (UINT)data_len, &_blocklen);
+		if(tftp_fr != FR_OK){
+			PRINTF("--f_write failed #2\r\n");
+			save_data_result = 2;
+		}
+		else
+		{
+			f_sync(&tftp_fil); //Flush data to SDCARD from cache
+		}
+	}
+	else
+	{
+		PRINTF("--f_write failed #1\r\n");
+		save_data_result = 1;
+	}
+	return save_data_result;
 }
 #endif
 
@@ -80,6 +116,13 @@ int dbg_level = (INFO_DBG | ERROR_DBG | IPC_DBG | DEBUG_DBG);
 static void set_filename(uint8_t *file, uint32_t file_size)
 {
 	memcpy(g_filename, file, file_size);
+#if defined(F_STORAGE)
+	//Rewrite file onto SD-card
+	tftp_fr = f_open(&tftp_fil, (const char *)g_filename, FA_CREATE_ALWAYS | FA_WRITE);
+	if(tftp_fr != FR_OK){
+		PRINTF("--f_open failed\r\n");
+	}
+#endif
 }
 
 static inline void set_server_ip(uint32_t ipaddr)
@@ -444,7 +487,10 @@ static void recv_tftp_data(uint8_t *msg, uint32_t msg_len)
 				set_tftp_state(STATE_DATA);
 				set_block_number(data->block_num);
 #ifdef F_STORAGE
-				save_data(data->data, msg_len - 4, data->block_num);
+				if (save_data(data->data, msg_len - 4, data->block_num))
+				{
+					g_progress_state = TFTP_FAIL;
+				}
 #endif
 				tftp_cancel_timeout();
 			}
@@ -461,7 +507,11 @@ static void recv_tftp_data(uint8_t *msg, uint32_t msg_len)
 			if(data->block_num == (get_block_number() + 1)) {
 				set_block_number(data->block_num);
 #ifdef F_STORAGE
-				save_data(data->data, msg_len - 4, data->block_num);
+				if(save_data(data->data, msg_len - 4, data->block_num))
+				{
+					g_progress_state = TFTP_FAIL;
+
+				}
 #endif
 				tftp_cancel_timeout();
 			}
@@ -671,11 +721,26 @@ int TFTP_run(void)
 #ifdef __TFTP_DEBUG__
 		DBG_PRINT(ERROR_DBG, "[%s] recv_udp_packet error\r\n", __func__);
 #endif
+#ifdef F_STORAGE
+		if(g_progress_state != TFTP_PROGRESS)
+		{
+			//Close TFTP file if transfer complete
+			close_tftp_file();
+		}
+#endif
 		return g_progress_state;
 	}
 
 	recv_tftp_packet(g_tftp_rcv_buf, len, from_ip, from_port);
 
+#ifdef F_STORAGE
+	if(g_progress_state != TFTP_PROGRESS)
+	{
+		//Close TFTP file if transfer complete
+		close_tftp_file();
+	}
+#endif
+
 	return g_progress_state;
 }
 

21_m1284p_WIZNET_TFTP_client_FATFS/Internet/TFTP/tftp.h

@@ -17,13 +17,14 @@ extern "C" {
 
 #define F_APP_TFTP
 #define __TFTP_DEBUG__
+//define TFTP_RCV_DBG /* To print-out received TFTP packet as string data */
 
 #define F_STORAGE // If your target support a storage, you have to activate this feature and implement.
 
 #if defined(F_STORAGE)
-#include "ff.h"
+#include "../../ff/ff.h"
-FIL fil;	// FatFs File objects
+static FIL tftp_fil;	// FatFs File objects
-FRESULT fr;	// FatFs function common result code
+static FRESULT tftp_fr;	// FatFs function common result code
 #endif
 
 

21_m1284p_WIZNET_TFTP_client_FATFS/ff/ffconf.h

@@ -16,7 +16,7 @@
 /  data transfer. */
 
 
-#define _FS_READONLY	1
+#define _FS_READONLY	0
 /* This option switches read-only configuration. (0:Read/Write or 1:Read-only)
 /  Read-only configuration removes writing API functions, f_write(), f_sync(),
 /  f_unlink(), f_mkdir(), f_chmod(), f_rename(), f_truncate(), f_getfree()

21_m1284p_WIZNET_TFTP_client_FATFS/main.c

@@ -11,8 +11,10 @@
  * TODO:
  * OK(v1.1) 1. Print-out received file from TFTP to serial console (small file < 512 bytes OK).
  * 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".
+ * OK(v1.3) 3. Write-in data to SD-card file "readme_txt" and another patterns.
- * 4. Add handlers for CHK_RAM_LEAKAGE && CHK_UPTIME.
+ * 4. Print out "readme.txt" contents head (from SD-Card ) in a serial terminal.
+ * 5. Add handlers for CHK_RAM_LEAKAGE && CHK_UPTIME.
+ * 6. Clear the code from the loopback sockets
  *
  * Remark:
  * Checked with PC tftp-server (WIN7) - tftpd64.exe
@@ -61,7 +63,7 @@ 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 v1.2 Static IP TFTP Client && FATFS SDCARD WIZNET_5500 ETHERNET 27/03/2019\r\n"; // Program name
+const char str_prog_name[] PROGMEM   = "\r\nAtMega1284p v1.3 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
@@ -536,18 +538,6 @@ int main()
 		//Here at least every 1sec
 		wdt_reset(); // WDT reset at least every sec
 
-		//Use Hercules Terminal to check loopback tcp:5000 and udp:3000
-		/*
-		 * https://www.hw-group.com/software/hercules-setup-utility
-		 * */
-		/*
-		loopback_tcps(SOCK_TCPS,ethBuf0,PORT_TCPS);
-		loopback_udps(SOCK_UDPS,ethBuf0,PORT_UDPS);
-		*/
-
-		//loopback_ret = loopback_tcpc(SOCK_TCPS, gDATABUF, destip, destport);
-		//if(loopback_ret < 0) printf("loopback ret: %ld\r\n", loopback_ret); // TCP Socket Error code
-
 		if((millis()-timer_link_1sec)> 1000)
 		{
 			//here every 1 sec
@@ -565,11 +555,12 @@ int main()
 
 
 					printf("\r\n########## SW1 was pressed.\r\n");
-					memset(tftp_filename, 0x0, 20);
+					memset(tftp_filename, 0x0, TFTP_FILE_NAME_SIZE);
-					strncpy(tftp_filename, "test.txt", TFTP_FILE_NAME_SIZE);
+					//!!Don't forget about 8.3 file name rule!!
-					//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);
+					//strncpy(tftp_filename, "ff_lfn.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]);