2021-02-26 stm32f030最简单的串口收发，裸机程

z@z-ThinkPad-X61:~/zworkingCopy/mcu/F030$ cat simplest_uart_Tx.cmd

#必须注意：openocd -f /usr/share/openocd/scripts/interface/stlink-v2.cfg  -f /usr/share/openocd/scripts/target/stm32f0x_stlink.cfg -c init -c halt

# 不能用reset，必须是halt

#芯片复位       

echo reset halt | nc localhost 4444

#开PA clk       

echo mww 0x40021014 0x20014 | nc localhost 4444

#开串口时钟     

echo mww 0x40021018 0x4000  | nc localhost 4444

#PA辅助功能, 高28是swio, swclk接口的辅助功能，而剩下两个是pa9/10的TXRX功能辅助。

#echo mww 0x48000000 0x28240000 | nc localhost 4444

echo mww 0x48000000 0x28280000 | nc localhost 4444

#将PA9,PA10设置成AF1

echo mww 0x48000024 0x110 | nc localhost 4444

#reset串口     

echo mww 0x4002100c 0x4000 | nc localhost 4444

echo mww 0x4002100c 0x0 | nc localhost 4444

#set baud        115200

echo mww 0x4001380c 0x45 | nc localhost 4444

#read status 

echo mdw 0x4001381c 1 | nc localhost 4444

# 收发使能       

echo mww 0x40013800 0xd | nc localhost 4444

#read status 

echo mdw 0x4001381c 1 | nc localhost 4444

# send 发     

echo mww 0x40013828 0x5a | nc localhost 4444

#读取状态       

echo mdw 0x4001381c 1 | nc localhost 4444

#再发再看       

echo mww 0x40013828 0xb4 | nc localhost 4444

echo mdw 0x4001381c 1 | nc localhost 4444

#读TXDR，确认是0xb4即最后一次发的功能

echo mdw 0x40013828 1 | nc localhost 4444

#PC一发，读取RXDR，就看到了：     

#echo mdw 0x40013824 1 | nc localhost 4444

z@z-ThinkPad-X61:~/zworkingCopy/mcu/F030$

z@z-ThinkPad-X61:~/zworkingCopy/mcu/F030$

z@z-ThinkPad-X61:~/zworkingCopy/mcu/F030$ cat simplest_uart_PCsend_RxRead.cmd

# 必须先跑，另一个脚本，才能跑这个：

seq 9 | xargs -i bash -c "echo {}; echo -n {} | nc localhost 4161;  echo mdw 0x40013824 1 | nc localhost 4444; "