v2.0 relese

Example/lib/MSP430/MSP430.h

@@ -0,0 +1,78 @@
+#pragma once
+#define DRIZZLING_BYTES_VERSION "2.0"
+
+/*
+ *	v1.0 - Initial release.
+ *	v1.1 - Flush RX UART buffer (MSP430 received bytes) before each transmission to allow multiple sequential OTA updates.
+ *  v2.0 - Improvements in memory usage
+ */
+
+#include <Arduino.h>
+#include <HardwareSerial.h>
+#include <FS.h>
+#include <SPIFFS.h>
+
+#define SERIAL_DEBUG 0
+
+#if SERIAL_DEBUG
+#define print_debug(x); Serial.print(x);
+#define println_debug(x); Serial.println(x);
+#define print_debug_hex(x, base); Serial.print(x, HEX);
+#define printf_debug_1arg(x, y); Serial.printf(x, y);
+#define printf_debug_2arg(x, y, z); Serial.printf(x, y, z);
+#else
+#define print_debug(x);
+#define println_debug(x);
+#define print_debug_hex(x, base);
+#define printf_debug_1arg(x, y);
+#define printf_debug_2arg(x, y, z);
+#endif
+
+#define MAX_MSP430_MEMORY_SECTIONS 	30
+
+ /**
+  * @brief Construct a new BSL object to control the Bootstrap Loader programming of the target MCU.
+  *
+  * @param RESET_PIN Any GPIO with output mode capability to be connected to the RESET pin of the target MSP430.
+  * @param TEST_PIN Any GPIO with output mode capability to be connected to the TEST pin of the target MSP430.
+  * @param Serial_Port HardwareSerial object (TX and RX UART) from Arduino Framework (Serial, Serial1, Serial2...).
+  * @param SPIFFS_Firmware_Address The local SPI Flash File System address where the BSL object must look for the firmware file in TI-TXT format.
+  */
+class MSP {
+
+private:
+	byte TEST_PIN;
+	byte RESET_PIN;
+	HardwareSerial BSL_UART;
+	String SPIFFS_Firmware_Address;
+
+	uint16_t calc_checksum(char* data, uint16_t length);
+	bool send_large_data(uint32_t startAddress, uint32_t length, unsigned char* data);
+	bool write_memory(uint32_t startAddress, char lenght, unsigned char* data);
+	char ctoh(char data);
+	void flush_bsl_uart_buffer();
+
+public:
+	MSP(byte RESET_PIN, byte TEST_PIN, HardwareSerial& Serial_Port, String SPIFFS_Firmware_Address) : BSL_UART(Serial_Port) {
+
+		this->TEST_PIN = TEST_PIN;
+		this->RESET_PIN = RESET_PIN;
+		this->SPIFFS_Firmware_Address = SPIFFS_Firmware_Address;
+
+		BSL_UART.begin(9600, SERIAL_8E1);
+		BSL_UART.setTimeout(500);
+
+		pinMode(TEST_PIN, OUTPUT);
+		pinMode(RESET_PIN, OUTPUT);
+
+		digitalWrite(TEST_PIN, LOW);
+		digitalWrite(RESET_PIN, HIGH);
+	}
+	~MSP() {}
+
+	void invoke_target_normal_mode_operation();
+	void invoke_target_bsl_mode_operation();
+	bool write_default_password();
+	bool write_firmware();
+	void load_firmware_from_spiffs();
+};

Examples/Firebase/platformio.ini → Example/platformio.ini

@@ -12,7 +12,7 @@
 platform = espressif32
 board = esp32dev
 framework = arduino
+
 upload_port = COM7
 monitor_port = COM7
-monitor_speed = 9600
-lib_deps = mobizt/Firebase Arduino Client Library for ESP8266 and ESP32@^4.0.0
+monitor_speed = 9600

Example/src/main.cpp

@@ -0,0 +1,62 @@
+#include <Arduino.h>
+#include <SPIFFS.h>
+#include "MSP430.h"
+
+//You need to ensure that the MSP430 firmware is on SPIFFS as TI-TXT format (exactly as compiled).
+#define SPIFFS_FIRMWARE_ADDRESS "/txt/firmware.txt"
+
+MSP BSL(2, 4, Serial2, SPIFFS_FIRMWARE_ADDRESS);
+
+void setup() {
+
+	Serial.begin(9600);
+
+	if (!SPIFFS.begin()) {
+		Serial.println("SPIFFS initialization failed.");
+		return;
+	}
+
+	Serial.println("\r\n---START---");
+}
+
+void loop() {
+
+	int16_t attempts = 3;
+
+	BSL.load_firmware_from_spiffs();
+
+	do {
+
+		BSL.invoke_target_bsl_mode_operation();
+
+		if (!BSL.write_default_password()) {
+			attempts--;
+
+			if (!attempts)
+				break;
+
+			continue;
+		}
+
+		delay(5);
+
+		if (!BSL.write_firmware()) {
+			Serial.print("\r\nMSP430 programming failed\r\n");
+			attempts--;
+			continue;
+		}
+
+		Serial.print("\r\nMSP430 programmed successfully\r\n");
+		attempts = 0;
+
+		BSL.invoke_target_normal_mode_operation();
+
+		Serial.print("Device is reset\r\n");
+
+	} while (attempts > 0);
+
+
+	while (1) {
+		;
+	}
+}