Pits encountered in MSP430 development (to be continued)

1、 sprintf The formatting result is not as expected

The phenomenon ：

sprintf(buf, "0x%02x",*hex_buf++);
Output 0x 7830

Problems encountered in the middle , After checking the Internet for a long time, all the methods you can find have been tested , The problem is not solved

The final solution   #include  "stdio.h"    I want to die

2、 stay In the timer Call serial port to send data   Cause the data to be garbled

The phenomenon , The data sent is garbled

terms of settlement ： Send in the main loop

3、 Serial port receives data Time added breakpoint , Resulting in incomplete data

The phenomenon Theoretically, the serial port should receive 10 Characters , Breakpoint watch , Just head and tail

terms of settlement ： Never add breakpoints to interrupts

4、 Use official w5500 drive , Found in Network disconnection and When initialization fails Will execute an endless loop in the drive

terms of settlement ： Find the loop ,break come out （ Incredible, isn't it , It's really solved like this ）