DA14683客製修改版的電路板

Hi,

我們依據 DA14683 development kit Pro電路重新設計 DA14683 電路板，在更新 firmware遇到問題.

我們使用 DA14683 development kit Pro 作為 JTAG工具，並對以下接點連線

DA14683 development kit Pro --> 我們的DA14683 電路板

JTAG interface

J3-SWCLK/ADC7/P2_4 - > SW_CLK pin of custom board.

J3-SWDIO/ADC4/P0_6 - > SWDIO pin of custom board.

UART interface

J4-ADC0/P1_2 - > UART_TX of custom board.

J3-P2_3 - > UART_RX of custom board.

Power in

J4 - VBAT+ - > VBAT of the custom board.

J4 - GND - > GND of the custom board.

K2 - RST - > to the RST pin of the custom board. (active high)

使用SmartSnippets Toolbox 版本 4.83

當我們按 detect device 選項，軟件會出現 it's unable to detect the DA14683.

當我們選擇 Jtag 及 DA14683-00 選項，並按開啟，訊息視窗會出現以下錯誤訊息

[INFO General @20-06-22 21:36:02] Could not measure total IR len. TDO is constant high.
[INFO General @20-06-22 21:36:02] Could not measure total IR len. TDO is constant high.
[INFO General @20-06-22 21:36:02] Could not measure total IR len. TDO is constant high.
[INFO General @20-06-22 21:36:02] Could not measure total IR len. TDO is constant high.
[INFO General @20-06-22 21:36:02] Could not measure total IR len. TDO is constant high.
[ERROR General @20-06-22 21:36:02] Could not read memory address 0x50003200 with function JLINKARM_ReadMemHW
[ERROR General @20-06-22 21:36:02] No known chip found while opening JLink connection. Terminating proccess...

我們也測試UART 輸出訊息，當我們按 detect device 選項，terminial 視窗會出現

DA14683BB
DA14683BB
DA14683BB
DA14683BB

請問 DA14683 需要重置或預先燒錄bootloader嗎?

或是有任何地方 我有遺漏的?請幫忙，感謝!

kuda