after make flash the code is not uploaded on board

[stefanosky]

on a macos installed pip and brewer, pyocd and gcc toolkit

after command make flash the code is not uploaded on board with the blinky led example works, then i try with ble blinky and not works

thanks

`MacBook-Pro-di-Stefano:armgcc stefano$ make flash Assembling file: gcc_startup_nrf52840.S Compiling file: nrf_log_backend_rtt.c Compiling file: nrf_log_backend_serial.c Compiling file: nrf_log_backend_uart.c Compiling file: nrf_log_default_backends.c Compiling file: nrf_log_frontend.c Compiling file: nrf_log_str_formatter.c Compiling file: app_button.c Compiling file: app_error.c Compiling file: app_error_handler_gcc.c Compiling file: app_error_weak.c Compiling file: app_scheduler.c Compiling file: app_timer.c Compiling file: app_util_platform.c Compiling file: hardfault_implementation.c Compiling file: nrf_assert.c Compiling file: nrf_atfifo.c Compiling file: nrf_atflags.c Compiling file: nrf_atomic.c Compiling file: nrf_balloc.c Compiling file: nrf_fprintf.c Compiling file: nrf_fprintf_format.c Compiling file: nrf_memobj.c Compiling file: nrf_pwr_mgmt.c Compiling file: nrf_ringbuf.c Compiling file: nrf_section_iter.c Compiling file: nrf_strerror.c Compiling file: system_nrf52840.c Compiling file: boards.c Compiling file: nrf_drv_clock.c Compiling file: nrf_drv_uart.c Compiling file: nrfx_clock.c Compiling file: nrfx_gpiote.c Compiling file: nrfx_power_clock.c Compiling file: nrfx_prs.c Compiling file: nrfx_uart.c Compiling file: nrfx_uarte.c Compiling file: main.c Compiling file: SEGGER_RTT.c Compiling file: SEGGER_RTT_Syscalls_GCC.c Compiling file: SEGGER_RTT_printf.c Compiling file: ble_advdata.c Compiling file: ble_conn_params.c Compiling file: ble_conn_state.c Compiling file: ble_srv_common.c Compiling file: nrf_ble_gatt.c Compiling file: nrf_ble_qwr.c Compiling file: utf.c Compiling file: ble_lbs.c Compiling file: nrf_sdh.c Compiling file: nrf_sdh_ble.c Compiling file: nrf_sdh_soc.c Linking target: _build/nrf52840_xxaa.out text data bss dec hex filename 26992 164 2488 29644 73cc _build/nrf52840_xxaa.out Preparing: _build/nrf52840_xxaa.hex Preparing: _build/nrf52840_xxaa.bin DONE nrf52840_xxaa Flashing: _build/nrf52840_xxaa.hex pyocd-flashtool -t nrf52 -se _build/nrf52840_xxaa.hex WARNING:root:pyocd-flashtool is deprecated; please use the new combined pyocd tool. INFO:board:Target type is nrf52 INFO:root:DP IDR = 0x2ba01477 INFO:root:AP#0 IDR = 0x24770011 INFO:root:AP#1 IDR = 0x02880000 INFO:root:AP#0 ROM table #0 @ 0xe00ff000 (designer=244 part=008) INFO:root:[0] INFO:root:[1] INFO:root:[2] INFO:root:[3] INFO:root:[4] INFO:root:[5] INFO:root:CPU core is Cortex-M4 r0p1 INFO:root:FPU present: FPv4-SP INFO:root:4 hardware watchpoints INFO:root:6 hardware breakpoints, 4 literal comparators [====================] 100% INFO:pyocd.flash.loader:Programmed 27156 bytes (7 pages) at 12.19 kB/s (7 pages unchanged)

pyocd-flashtool -t nrf52 -se _build/nrf52840_xxaa.hex

MacBook-Pro-di-Stefano:armgcc stefano$ `

[caizelin]

@stefanosky the ble blinky example needs the SoftDevice, so before make flash command, you should download the SoftDevice by using make flash_softdevice command.

[stefanosky]

Ok thanks, can you post here the line of code to put in makefile.c to resolve flash_softdevice? Because is missing, both flash_all and flash_device.

I think on macos there is some issue about current voltage stability, the dap drive is loaded and ejected several times and the times that the code was not loaded it's due to not sync with board. You tested with macbook pro 2018?

Thanks

[caizelin]

Here is the ble_app_blinky example which contains flash_softdevice: https://github.com/makerdiary/nrf52840-mdk/tree/master/examples/nrf5-sdk/ble_app_blinky

My host is macbook pro 2014. Have you installed libusb? Try brew install libusb. I will find a new MBP to test. Thanks for your feedback!

[stefanosky]

Another thing minor, pyocd warning to use new command instead of deprecated pyocd-flashtool. Like "pyocd flash ... " But i don't know how to rewrite. I tried but something goes wrong

[caizelin]

Another thing minor, pyocd warning to use new command instead of deprecated pyocd-flashtool. Like "pyocd flash ... " But i don't know how to rewrite. I tried but something goes wrong

Could you post the output log? Although pyocd-flashtool is deprecated, it still works currently. Anyway, you can use pyocd like this to flash:

pyocd flash -t nrf52 -e sector <your hex file>

Just type pyocd flash -h to get the help info.

[stefanosky]

Here is the ble_app_blinky example which contains flash_softdevice: https://github.com/makerdiary/nrf52840-mdk/tree/master/examples/nrf5-sdk/ble_app_blinky

My host is macbook pro 2014. Have you installed libusb? Try brew install libusb. I will find a new MBP to test. Thanks for your feedback!

I reinstall libusb now i flashed with softdevice succesfully. i found a guide for nrf52 on mac and i missed to add some path, i will do later for other people interested, i found this one https://aaroneiche.com/2016/06/01/programming-an-nrf52-on-a-mac/ and a summary https://gist.github.com/cheburashka/c74840823cde609a5ec379c9440fc0fe

thanks

[caizelin]

@stefanosky Awesome! 👍

[stefanosky]

i updated also with the new command pyocd flash, works like a charm! thanks! now i have to study how to do Thread networks

[stefanosky]

now i use the board nRF52840 Micro Development Kit, i'm looking to shrink project board, and the usb dongle board seems to have to program in different way of the bigger board. i see nrfutil in the tutorial. it's not possible to use the same toolchain? or i wrongly understand? thanks

[caizelin]

now i use the board with usbc female, i'm looking to shrink project board, and the usb dongle seems to have to program in different way of the bigger board. i see nrfutil in the tutorial. it's not possible to use the same toolchain? or i wrongly understand? thanks

The dongle does not contain a Debugger chip like nRF52840-MDK. So you can't use pyocd to program the dongle directly. However, the dongle is pre-installed with a bootloader. So you can use nrfutil or nRF Connect for Desktop to program the board. Development flow is the same as nRF52840-MDK except the programming step.