can i use DFU bootloader for flashing the external microcontroller

[MARTIN FR]

Hello ,

I have an idea of using nrf51DK along with another external microcontroller both of them are connected via SPI inerfacing the aim of my question can i use the bootloader available in the NRF51 for flashing the External AVR microcontroller instead of flashing the NRF51822 Itself whether it is possible or not if possible what are things should be taken care of ? as i read from the NRF51documents they mentioned the NRF51 stacks are available inside the SOC itself so i cannot able to modify the stack pointers so anyone could verify my ideas and propose me some suggestions to complete my vision

Thank you

[Vidar Berg]

Hello,

You can use the DFU bootlaoder to update the AVR with some modifications. I.e., relay received FW data from BLE over to the AVR through SPI when DFU of AVR FW has been requested. You could add a new req. op code to request update of the AVR, see DFU service.

[MARTIN FR]

yes i want to use nRF51 DFU BOOTLOADER as a programmer for my AVR chip whether it is possible or not? if it is possible i would like to implement in this way DFU bootloader OPTION in the NRFTOOLBOX and it will download the file from the server and it will save the file in the NRF51 flash memory and then it will transfer the file to my AVR chip EEPROM memory can i able o implement like this logic?