bluepill DFU mode

[IcemanDZ]

I use the USB to TTL adpatper and follow the instuctions to flash the boatloader, but cant find other more info to flash the hex files to the board, there is no instrutions on the github, and since Lobato said its in the facebook group, but I searched it, there is no detailed instructions, can anyone help?

[raul-ortega]

Spanish first, translated to English below: Hola Luis, creo estabas haciendo la misma consulta en el repositorio github, mejor por aquí. El firmware debes cargarlo con un adaptador USB-TTL conectado a los pines PA9 PA10, más un GND y un VIN. Además, tienes que cambiar la posición de uno de los jumpers amarillos, y pulsar el botón blanco cuando des la orden de flashear desde el configurador. Cuando terminas de flashear, tienes que desconectar alimentación, colocar el jumper en la posición original, y alimentar otra vez el USB-TTL. Es importante colocar el mag porque la controladora intentará detectarlo, y puede quedar indefinidamente esperando a encontrarlo dejando el led rojo indicando su falta. Si habillitas el display y tampoco está presente, también puedes tener problemas de comunicación desde el configurador. Se me olvidaba comentar que también es posible flashear usando un ST-Link conectado al puerto que lleva para ello, pero en lugar del configurador debes usar una aplicación específica de STM. El motivo de no poder usar el puerto USB que incorpora la bluepill se debe a que esta no incorpora un chip para controlarlo, lo debe hacer el propio firmware que se cargue en la bluepill previamente. Esto es un problema porque no deja espacio suficiente para el firmware del tracker, además de que el firmware del tracker no gestiona el puerto por limitación de espacio en memoria. Finalmente, decirte que hay bluepills que no tienen la capacidad de memoria suficiente para ser flashea das con el firmware del tracker, motivo por el cual podría no funcionar aún teniendo conectado un mag. English (Google Translator): Hello Luis, I think you were asking the same query in the github repository, better here. You must load the firmware with a USB-TTL adapter connected to the PA9 PA10 pins, plus a GND and a VIN. Additionally, you have to change the position of one of the yellow jumpers, and press the white button when you give the flash command from the configurator. When you finish flashing, you have to disconnect the power, place the jumper in the original position, and power the USB-TTL again. It is important to place the mag because the controller will try to detect it, and it may wait indefinitely to find it, leaving the red LED indicating its absence. If you enable the display and it is not present either, you may also have communication problems from the configurator. I forgot to mention that it is also possible to flash using an ST-Link connected to the port provided for it, but instead of the configurator you must use a specific STM application. The reason for not being able to use the USB port that the bluepill incorporates is because it does not incorporate a chip to control it, this must be done by the firmware itself that is loaded into the bluepill previously. This is a problem because it does not leave enough space for the tracker firmware, in addition to the fact that the tracker firmware does not manage the port due to memory space limitation. Finally, tell you that there are bluepills that do not have enough memory capacity to be flashed with the tracker firmware, which is why it may not work even with a mag connected. #### Use u360gts configurator to flash de board. El jue., 12 oct. 2023 5:52, IcemanDZ ***@***.***> escribió:

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I use the USB to TTL adpatper and follow the instuctions to flash the boatloader, but cant find other more info to flash the hex files to the board, there is no instrutions on the github, and since Lobato said its in the facebook group, but I searched it, there is no detailed instructions, can anyone help? — Reply to this email directly, view it on GitHub <#128>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ADCWBYD7V6IPN4T2E2KHE63X65SPPANCNFSM6AAAAAA546U6EY> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[IcemanDZ]

looks like I still cant flash it, this is way so confusing, I can add you on facebook?

[raul-ortega]

The way to flash the bluepill is a, let's say, standard procedure, it involves putting the controller in boot mode and using the pins described using a USB-TTL interface. You could use the betaflight or inav configurator to load the previously downloaded firmware on your computer and, also, you can use the STM tool, I mean Flash Loader Demonstrator. Another way to flash is using an ST-Link interface. However, it could be a driver problem on your computer, or even a faulty bluepill. Sometimes it may even be that your bluepill does not have enough memory. Request to join the u360gts group, other users who may have had the same problem could help you solve it. El jue., 26 oct. 2023 3:55, IcemanDZ ***@***.***> escribió:

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looks like I still cant flash it, this is way so confusing, I can add you on facebook? — Reply to this email directly, view it on GitHub <#128 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ADCWBYCSHF3BHNNKBWBIC2LYBG7JTAVCNFSM6AAAAAA546U6E2VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTOOBQGI4TINJXGY> . You are receiving this because you commented.Message ID: ***@***.***>