nRF51422 BLE + SERIAL DFU Merge

[SciTER Development Team]

I am using nRF51 (PCA10028) DK and nRF51 SDK v9.0.0 for Development. I want to merge all three DFU(BLE + SERIAL + ANT). i have merge BLE and SERIAL DFU code. For this i have make changes in dfu_transport_ble.c, dfu_transport_serial.c, bootloader.c and dfu_types.h files. BLE DFU using nrf toolbox App is working ok, but when I perform Serial DFU Using nrfgo studio it shows error like "target is not in DFU mode. If using the SDK examples, press Button 4 and RESET and release both to enter DFU mode." i have checked that target is already in DFU Mode.

Target setting is,

         Start		 Size

IROM1: 0x30000 0xFC00

IRAM1: 0x20002C00 0x5380

IRAM2: 0x20007F80 0x80

[bjorn-spockeli]

Have you tried debugging the bootloader project in order to verify that you're receiving the init packet ?

[SciTER Development Team]

Yes, I have debugging the bootloader project, successfully receive Start packet, init Packet and Data packet. I observed that After receiving one data packet it stops to receiving data packet.

[bjorn-spockeli]

@sandip-sciter: Do you have HWFC(Hardware Flow Control) enabled when using the UART peripheral?

[SciTER Development Team]

i have tried with both HWFC enabled and disabled but facing same problem sir

[bjorn-spockeli]

Could you upload the project folder and the modified files so that I could try to replicate the issue?