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pyocd-flashtool - ARM Cortex-M programming tool

pyocd-flashtool is an ARM Cortex-M programming tool

pyOCD is an Open Source python based library for programming and debugging ARM Cortex-M microcontrollers using CMSIS-DAP.

Includes support for flashing new binaries, resetting the device, halt, step, resume read/write memory and set/remove breakpoints.

Firmware files included in the upstream source are NOT included in the Debian package due to a lack of source code. Target files can be downloaded separately from https://github.com/mbedmicro/pyOCD/tree/master/binaries

Available targets for use with --target option: lpc824, kinetis, w7500, kv11z7, lpc4088qsb, kv10z7, k20d50m, ncs36510, kl28z, kl25z, k82f25615, k28f15, maxwsnenv, max32600mbed, k22fa12, lpc4088, lpc4330, ke18f16, kl46z, stm32f103rc, kl82z7, lpc54114, kl43z4, kl26z, lpc11xx_32, lpc800, rtl8195am, kl05z, lpc1768, kw41z4, lpc4088dm, stm32f051, cortex_m, lpc11u24, kl02z, kw01z4, k64f, k22f, ke15z7, nrf51, nrf52, kl27z4, kw40z4, k66f18

[-a ADDRESS] [-n COUNT] [-s SKIP] [-hp] [-fp] [-da DAPARG [DAPARG ...]] [--mass-erase] [file] [{bin,hex}]

Flash utility

file File to program {bin,hex} File format. Default is to use the file extension
Unexpected indentation.
(.bin or .hex)


show this help message and exit
show program's version number and exit
Connect to board by board id. Use -l to list all connected boards.
List all connected boards.
Set the level of system logging output. Supported choices are: debug, info, warning, critical, error
Override target to debug. Supported targets are: lpc824, kinetis, w7500, kv11z7, lpc4088qsb, kv10z7, k20d50m, ncs36510, kl28z, kl25z, k82f25615, k28f15, maxwsnenv, max32600mbed, k22fa12, lpc4088, lpc4330, ke18f16, kl46z, stm32f103rc, kl82z7, lpc54114, kl43z4, kl26z, lpc11xx_32, lpc800, rtl8195am, kl05z, lpc1768, kw41z4, lpc4088dm, stm32f051, lpc11u24, kl02z, kw01z4, k64f, k22f, ke15z7, nrf51, nrf52, kl27z4, kw40z4, k66f18
Set the SWD clock frequency in Hz.
Use chip erase when programming.
-se, --sector_erase
Use sector erase when programming.
Unlock the device.
Address. Used for the sector address with sector erase, and for the address where to flash a binary.
Number of sectors to erase. Only applies to sector erase. Default is 1.
Skip programming the first N bytes. This can only be used with binary files
Don't display programming progress.
-fp, --fast_program
Use only the CRC of each page to determine if it already has the same data.

Send setting to DAPAccess layer.

Mass erase the target device.


--chip_erase and --sector_erase can be used alone as individual commands, or they can be used in conjunction with flashing a binary or hex file. For the former, only the erase option will be performed. With a file, the erase options specify whether to erase the entire chip before flashing the file, or just to erase only those sectors occupied by the file. For a standalone sector erase, the --address and --count options are used to specify the start address of the sector to erase and the number of sectors to erase.

2006-2013 ARM Limited

0.12.0