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adafruit / Adafruit_nRF52_Bootloader

USB-enabled bootloaders for the nRF52 BLE SoC chips
MIT License
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Increased `HCI_RX_BUF_QUEUE_SIZE` to 16 to Resolve OTA DFU #90

Open chrisingis opened 4 years ago

chrisingis commented 4 years ago

Using a Segger J-Link, I traced the following error, thrown by hci_mem_pool_rx_produce(): NRF_ERROR_NO_MEM due to m_rx_buffer_queue.free_window_count == 0

In that trace, the value of length, being passed to hci_mem_pool_rx_produce() was 14. Alas, increasing HCI_RX_BUF_QUEUE_SIZE resolved the issue. I have quite a handful of these boards, and the error was consistently resolved across the board in both my iOS and Android app.

nRF52 Device Information:

MCU Variant: nRF52840   0x41414330
Memory (FLASH): 1024 KB
Memory (RAM): 256 KB
ARM Cortex-M4 Processor Revision: v1
MDK Version: v8.24.1
TinyUSB Version: v0.5.0
LittleFS Version: v1.1
Bootloader/DFU Revision: s140 6.1.1
SoftDevice Version: v6.1.1
BSP Library: v0.14.0

Desktop Platform Information: macOS 10.14, as well as 10.15 Mobile Devices Used: An iPhone 8 (iOS 11 + 12) as well as an iPhone X (iOS 12 + 13)