Consulted by jlink commander connected under the condition of the cortex a5
To connect first, and then has been return, you will start the connection, I want to ask is,
What (1) through the jtag communication the information?
(2) often could not power up the debug port?

CodePudding user response:

Jtag is a component of the CPU, he can control the internal CPU registers, change the CPU state, these are the internal command, through the CPU memory interface to read and write memory,

CodePudding user response:

I know I could not power up the debug port problem, because the debug APB port there is something wrong with the clock,
But it's still not clear, in open jlink commander after input the connect command, jlink and what made the communication between the arm?