Hi!
The current stm32h7x.cfg target script supports only tpiu with non-hla
adapters due to hla single ap limitation. There is a workaround for
that, as the swo and tpiu are available at another address space via the
main ap0.
I propose adding for non-hla adapters the following configuation:
swo create $_CHIPNAME.swo -dap $_CHIPNAME.dap -ap-num 0 -baseaddr
0x5C003000
tpiu create $_CHIPNAME.tpiu -dap $_CHIPNAME.dap -ap-num 0 -baseaddr
0x5C015000
In addition to those lines, the examine-end script needs one change and
2 additions:
# DBGMCU_CR |= TRACECLKEN | D1DBGCKEN | D3DBGCKEN
stm32h7x_dbgmcu_mmw 0x004 0x00700000 0
# Unlock SWO_LAR and SWTF_LAR
mww 0x2FB0 0xC5ACCE55
mww 0x3FB0 0xC5ACCE55
Using that, I can send debug data to SWO using ITM_SendChar(), set up
swo output with "tpiu config internal - uart off 96000000" ; "itm ports
on" and listen with SWO-Parser, using STLink v2 as debugger.
PS. The SWO stuff runs from PLL1R when the system runs on PLL. If PLL1R
clock output is not enabled, the debug interface inside mcu will lock up
on swo register access and stay so until next power cycle.
--
Anti Sullin
Principal Software Engineer
Starship Technologies LLC
