On 03/28/2018 08:16 PM, John Griessen wrote:
What is the meaning of Vref in the SWD config
(interface/ftdi/swd-resistor-hack.cfg)
" Vref of the adapter should be supplied with a voltage equal
to the target's (preferrably connect it to Vcc).
# FTDI Target
# ---- ------
# 1 - Vref ----------------- Vcc
# 3 - nTRST -
# 4 - GND ----------------- GND
# 5 - TDI ---/\470 Ohm/\--- SWDIO
# 7 - TMS -
# 9 - TCK ----------------- SWCLK
# 11 - RTCK -
# 13 - TDO ----------------- SWDIO
# 15 - nSRST - - - - - - - - - nRESET
"
There's VCCIO , type power input, but that's a VCC supply voltage going into the FTDI JTAG adapter, not an ADC input like I think
Vref should be.
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