can't use jlink to download

[sosong]

I was wrong

UART0_TX has be multiplexed onto PTA1 ,UART0_RX has be multiplexed onto PTA2

PORTA_PCR1 = PORT_PCR_MUX(0x2);
PORTA_PCR2 = PORT_PCR_MUX(0x2);

now,can't use jlink to download ,How to do?

[sosong · Accepted solution]

OK,Problem has been solved

Use SWD mode to download  .

[sosong]

Who can help me?