Part Number:CC2538
Hello,
When reading the datasheet and the User Manual, there are some mentions of SWO trace (Cortex-M3); however, I couldn't find any information on how to configure the pins to enable this feature. Is there a guide available somewhere? I know that you have some information on the info-centre of ARM: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0337e/index.html but it is more protocol configuration rather than pins configurations, which should be vendor-defined.
On https://e2e.ti.com/support/wireless_connectivity/zigbee_6lowpan_802-15-4_mac/f/158/p/573820/2235764?tisearch=e2e-sitesearch&keymatch=cc2538%20trace#2235764 , one manages to make it works using pin PB5 but that person did not share all information (I would like to use pin PB7 instead for example). Even with those settings, when I've tried it with a J-Link probe debugger; it failed.
HWREG(0x44010010) = 0x1; (????)
HWREG(0x400DA400) |= 0x20; (Set pin PB5 direction)
Does the CC2538 really support trace debugging?
Thank you in advance,
Steven