# # Config for using Raspberry Pi's expansion header # # This is best used with a fast enough buffer but also # is suitable for direct connection if the target voltage # matches RPi's 3.3V and the cable is short enough. # # Do not forget the GND connection, pin 6 of the expansion header. # adapter driver bcm2835gpio bcm2835gpio_peripheral_base 0x3F000000 # Transition delay calculation: SPEED_COEFF/khz - SPEED_OFFSET # These depend on system clock, calibrated for stock 700MHz # bcm2835gpio_speed SPEED_COEFF SPEED_OFFSET bcm2835gpio_speed_coeffs 146203 36 # Each of the JTAG lines need a gpio number set: tck tms tdi tdo # Header pin numbers: 23 22 19 21 #bcm2835gpio_jtag_nums 11 25 10 9 # Each of the SWD lines need a gpio number set: swclk swdio # Header pin numbers: 23 22 #bcm2835gpio_swd_nums 11 25 # swd gpio pins swclk swio bcm2835gpio_swd_nums 27 17 # If you define trst or srst, use appropriate reset_config # Header pin numbers: TRST - 26, SRST - 18 #bcm2835gpio_trst_num 22 #reset_config trst_only # bcm2835gpio_srst_num 24 # reset_config srst_only srst_push_pull # or if you have both connected, # reset_config trst_and_srst srst_push_pull adapter speed 100 transport select swd ## test which chip this is #swd newdap chip cpu -enable #dap create chip.dap -chain-position chip.cpu #target create chip.cpu cortex_m -dap chip.dap #init #dap info