MicroPython Forum (Archive)

NRF FLASHING OK, here's some information that will save some time for others trying to program the NRF with Chinese STLINK and The Black Magic Probe: I have tested with openocd, pyocd and gdb, all are latest versions. The latest firmware of STLINK does not apear to allow mass erase, so this would f...

Does anyone know, for the NRF devices, other than connecting D+, D-, VBUS and Ground from USB cable and making the following changes in the mpcconfigboard.h, are there any other settings / connections to make CDC work on the NRF ?? is there any additional USB firmware that needs to be flashed to the...

OK, success using pyocd, I will update my findings later.

How careless of me, the holyroot pdf and diagrams just show this as a digital IO, just checked a schematic of the NRF8240 and you are correct, will try that. But is my last mod to the main.c file correct ? - if you do this does a LED come on and stay on during bootup ? I have set it to p0.22: // ## ...

I also tried adding the port enable code here, and did a fresh clone of the entire build and re-built again, but still nothing at all: // Main script is finished, so now go into REPL mode. // The REPL mode can change, or it can request a soft reset. int ret_code = 0; //PAC P0.10 LED On nrf_gpio_cfg_...

Sorry @Jimmo, did not see your post. This is my gdb-nrf52.sh file: #!/bin/sh GDB="/Users/pac/gcc-arm-none-eabi-9-2019-q4-major/bin/arm-none-eabi-gdb" BTFW61="/Users/pac/uPython/build/micropython/ports/nrf/fw/s140_nrf52_6.1.1/s140_nrf52_6.1.1_softdevice.hex"; HOLYA="/Users/pac/uPython/build/micropyth...

Hi again; Is this where it should be added: soft_reset: led_init(); led_state(1, 1); // MICROPY_HW_LED_1 aka MICROPY_HW_LED_RED mp_stack_set_top(&_ram_end); // Stack limit should be less than real stack size, so we have a chance // to recover from limit hit. (Limit is measured in bytes.) mp_stack_se...

Thanks so much for spending the time to do that. I bought this black magic probe a few months ago and never used it, so this seemed a good opportunity, before that I was using a cheap chines STLink V2. I will try the led enable tomorrow and let you know what happens. On a similar subject, I use the ...

@c45713 i am now programming using gdb and black magic probe. ./gdb-nrf52.sh Target voltage: 3.3V Available Targets: No. Att Driver 1 ARM Cortex-M warning: No executable has been specified and target does not support determining executable automatically. Try using the "file" command. warning: while ...

I recently bought some of these: https://www.aliexpress.com/item/3284470 ... 4c4dx6H2Od

I think the problem is shipping, lots of batteries seem unavailable now, they wrap them in resistors to avoid them being detected as batteries during shipment !