#Msp430 Serial Bootloader update#

If there is an update program command issued by the upper computer, it sends a handshake signal to inform the upper computer to send the update code, and writes the received update code into the corresponding flash of the MCU The second function is to jump to the entry address of the application and execute the application when an application is detected.

This program is not the userвЂ™s application program, it has two functions: first, it detects the serial port in real time during a short period of power on. Therefore, if the application program can be updated through the existing simple interface (such as serial port), it will bring greater convenience to the use of MCU.ДЇirst of all, a small program called bootloader program is written into MCU through emulator. This kind of step is more tedious, if the operation is improper, it will damage the equipment. The conventional method needs to open the chassis, connect the emulator with the MCU, and then update the program. But the application program often needs to be updated in the debugging stage and the actual use. Like other processors, MCU needs not only hardware circuit, but also user application program. The msp430x5xx series single-chip microcomputer produced by TI company has the characteristics of low voltage, low power consumption, high-speed processing ability and flexible interface configuration, which is one of the mainstream single-chip microcomputer nowadays. Especially in the aspect of signal control and processing, SCM becomes the first choice for designers because of its ultra-low power consumption and simple operation. With the continuous improvement of performance and the reduction of cost, SCM has been widely used in various fields.

Msp430 Serial Bootloader