From: Uwe Hermann Date: Thu, 11 Dec 2014 07:51:12 +0000 (+0100) Subject: swd: Move README into the respective dir(s). X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=5ed6b039f589931389bf01bad0f0ca8cea6e9d2e;p=sigrok-dumps.git swd: Move README into the respective dir(s). --- diff --git a/swd/README b/swd/README deleted file mode 100644 index 572bfd9..0000000 --- a/swd/README +++ /dev/null @@ -1,87 +0,0 @@ -------------------------------------------------------------------------------- -SWD -------------------------------------------------------------------------------- - -This is a set of example captures of the ARM SWD (version 1) protocol. - -Details: -http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ihi0031c/index.html -(Registration required) - - -Logic analyzer setup --------------------- - - Probe SWD - --------------- - 0 swclk - 1 swdio - - -Data ----- - -Different SWD sessions showing different types of behaviour: - -* ftdi_openocd/ - -Using an FTDI-based adapter via "openocd ftdi resistor hack". OpenOCD -0.9.0 development version. Device under test is a Nordic nRF51822. - -Command line: - - $ openocd -f interface/ftdi/olimex-arm-usb-tiny-h.cfg \ - -f interface/ftdi/swd-resistor-hack.cfg \ - -f target/nrf51.cfg - -** ftdi_openocd/init.sr - Initialising device, IDCODE read, etc. - OpenOCD args: -c "init; exit" - -** ftdi_openocd/init_noreply.sr - Initialising when no device is connected (i.e. all responses are 1s.) - OpenOCD args: -c "init; exit" - -** ftdi_openocd/init_write_0xabbabeeb.sr - Initialise, write 20 bytes of 0xabbabeeb at start of RAM. - OpenOCD args: -c "init; halt; mww 0x20000000 0xabbabeeb 20; exit" - -** ftdi_openocd/init_wait_fault.sr - Initialise, attempt to write flash fill of 0xabbabeeb via async loader. - This causes SWD WAIT states in "overrun" mode, so the first WAIT causes all - subsequent responses to be FAULT until OpenOCD clears the sticky error bit. - - For this capture OpenOCD was patched with this change (known to induce - SWD WAITs): http://openocd.zylin.com/#/c/2204/ - - OpenOCD args: -c "init; reset halt; flash fillw 0 0xabbabeeb 2048; exit" - - -* stlink_openocd/ - -Using an STLINK-V2 adapter via OpenOCD 0.9.0 development -version. Device under test is a Nordic nRF51822. - -Command line: - - $ openocd -f interface/stlink-v2.cfg -c 'transport select hla_swd' \ - -f target/nrf51.cfg - -** stlink_openocd/init.sr - Intiliasing device, IDCODE read, etc. - OpenOCD args: -c "init; exit" - -** stlink_openocd/init_write_0xabbabeeb.sr - Initialise, write 20 bytes of 0xabbabeeb at start of RAM. - OpenOCD args: -c "init; halt; mww 0x20000000 0xabbabeeb 20; exit" - -** stlink_openocd/wait_retry.sr - Capture showing an SWD WAIT with overrun mode not enabled (in contrast to - ftdi_openocd/wait_retry.sr), adapter immediately retries and gets an OK - response. - - For this capture OpenOCD was patched with this change (known to induce - SWD WAITs): http://openocd.zylin.com/#/c/2204/ - - OpenOCD args: -c "init; reset halt; flash fillw 0 0xabbabeeb 2048; exit" - diff --git a/swd/ftdi_openocd/README b/swd/ftdi_openocd/README new file mode 100644 index 0000000..7951a58 --- /dev/null +++ b/swd/ftdi_openocd/README @@ -0,0 +1,58 @@ +------------------------------------------------------------------------------- +SWD +------------------------------------------------------------------------------- + +This is a set of example captures of the ARM SWD (version 1) protocol. + +Details: +http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ihi0031c/index.html +(registration required) + + +Logic analyzer setup +-------------------- + + Probe SWD + --------------- + 0 swclk + 1 swdio + + +Data +---- + +Different SWD sessions showing different types of behaviour: + +* ftdi_openocd/ + +Using an FTDI-based adapter via "openocd ftdi resistor hack". OpenOCD +0.9.0 development version. Device under test is a Nordic nRF51822. + +Command line: + + $ openocd -f interface/ftdi/olimex-arm-usb-tiny-h.cfg \ + -f interface/ftdi/swd-resistor-hack.cfg \ + -f target/nrf51.cfg + +** ftdi_openocd/init.sr + Initialising device, IDCODE read, etc. + OpenOCD args: -c "init; exit" + +** ftdi_openocd/init_noreply.sr + Initialising when no device is connected (i.e. all responses are 1s.) + OpenOCD args: -c "init; exit" + +** ftdi_openocd/init_write_0xabbabeeb.sr + Initialise, write 20 bytes of 0xabbabeeb at start of RAM. + OpenOCD args: -c "init; halt; mww 0x20000000 0xabbabeeb 20; exit" + +** ftdi_openocd/init_wait_fault.sr + Initialise, attempt to write flash fill of 0xabbabeeb via async loader. + This causes SWD WAIT states in "overrun" mode, so the first WAIT causes all + subsequent responses to be FAULT until OpenOCD clears the sticky error bit. + + For this capture OpenOCD was patched with this change (known to induce + SWD WAITs): http://openocd.zylin.com/#/c/2204/ + + OpenOCD args: -c "init; reset halt; flash fillw 0 0xabbabeeb 2048; exit" + diff --git a/swd/stlink_openocd/README b/swd/stlink_openocd/README new file mode 100644 index 0000000..f7540cb --- /dev/null +++ b/swd/stlink_openocd/README @@ -0,0 +1,53 @@ +------------------------------------------------------------------------------- +SWD +------------------------------------------------------------------------------- + +This is a set of example captures of the ARM SWD (version 1) protocol. + +Details: +http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ihi0031c/index.html +(registration required) + + +Logic analyzer setup +-------------------- + + Probe SWD + --------------- + 0 swclk + 1 swdio + + +Data +---- + +Different SWD sessions showing different types of behaviour: + +* stlink_openocd/ + +Using an STLINK-V2 adapter via OpenOCD 0.9.0 development +version. Device under test is a Nordic nRF51822. + +Command line: + + $ openocd -f interface/stlink-v2.cfg -c 'transport select hla_swd' \ + -f target/nrf51.cfg + +** stlink_openocd/init.sr + Intiliasing device, IDCODE read, etc. + OpenOCD args: -c "init; exit" + +** stlink_openocd/init_write_0xabbabeeb.sr + Initialise, write 20 bytes of 0xabbabeeb at start of RAM. + OpenOCD args: -c "init; halt; mww 0x20000000 0xabbabeeb 20; exit" + +** stlink_openocd/wait_retry.sr + Capture showing an SWD WAIT with overrun mode not enabled (in contrast to + ftdi_openocd/wait_retry.sr), adapter immediately retries and gets an OK + response. + + For this capture OpenOCD was patched with this change (known to induce + SWD WAITs): http://openocd.zylin.com/#/c/2204/ + + OpenOCD args: -c "init; reset halt; flash fillw 0 0xabbabeeb 2048; exit" +