技术服务你好！
我现在遇到一个比较棘手的问题，我在PXP工程新建了一个任务。任务里面同时使用了I2C和SPI端口，并且每隔一段时间就读取两个端口设备。但是这个新建的任务总会遇到不运行的时候，现在我不知道从哪里下手解决。谢谢！
void User_APP(void)
{
static unsigned char TX[10];
static unsigned char RX[16];
i2c_device I2C_dev;
spi_device SPI_dev;
port_init();
demo_i2c_init();
SPI1_init();
setup_breath(0, 255, 255, 255);
I2C_dev = ad_i2c_open(M41T62);
TX[0]=0x04;
TX[1]=0x92;
ad_i2c_write(I2C_dev, TX, 2);
TX[0]=0x0A;
TX[1]=0x40;
ad_i2c_write(I2C_dev, TX, 2);
Hi Everyone:
I have a question regarding programming on the DA1468x development kit. When I run my code, I get the following on my console for smartsnippets:
.......................................................................................................................
..
.. QSPI PROGRAMMING
..
.......................................................................................................................
Please enter your COM port number and press enter.
-> 8
COMPORT=COM8
您好
我使用的開發套件為DA14681
想單純實現兩開發版間之藍芽傳輸
請問是否有只有藍芽配對及傳輸功能之範例?
感謝您!
We used ble_adv project on homemade minimal system board (SDK v1.0.6.968) to investigate low energy function.
we have settings as below:
pm_set_sleep_mode(pm_mode_extended_sleep);
advertisement interval is default 687.5ms.
During the test, we have two readings which are significant with official documents:
1, active current is 2ma from start to 8s.
2, current drop down to 600 ua after 8s later.
你好，请问下，我用 hw_uart_write(HW_UART2,hw_uart_read(HW_UART2));测试DA14681的串口在发送100字节以上的数据就会丢包。想用DMA uart测试下，请问有DMA的测试demo吗？
Hi Dialog,
my custom application should advertise and initiate a connection simultaneously, but only Advertising works.
Code snippet:
ble_gap_role_set(GAP_PERIPHERAL_ROLE | GAP_CENTRAL_ROLE);
...
ble_gap_adv_start(GAP_CONN_MODE_UNDIRECTED);
ble_gap_connect(&bd_addr, &cp);
What could be the problem?
Thanks
Armin
请问下我使用DA14681的sdk：v1.0.6.968的ble_adv工程, 配置如下：
pm_set_sleep_mode(pm_mode_extended_sleep);
广播间隔是代码默认 687.5ms。
现象：
1. da14681启动到8秒的时间电流检测显示2ma左右。
2.8s之后进入extended sleep后电流显示600ua左右。
请问下：
现象1的工作电流2ma正常么？
现象2的电流我在官方文档"AN-B-037 DA1468x Power measurements_v1.3.pdf"
中显示在广播间隔1000ms时平均电流在20.3713ua，那我实际测试是600ua左右，
请问下问题在哪里？
p.s 硬件条件是DA14681最小系统，没有其他芯片在工作。
请问下我使用DA14681的sdk：v1.0.6.968的pxp工程，系统默认时钟配置如下：
cm_sys_clk_init(sysclk_XTAL16M);
cm_apb_set_clock_divider(apb_div1);
cm_ahb_set_clock_divider(ahb_div1);
cm_lp_clk_init();
... ...
/* Set system clock */
cm_sys_clk_set(sysclk_XTAL16M);
Hi, Dialog,
I build a app based on px reporter, add a timer to read data from I2C bus through adapter when connected to a central device.
the most strange thing was, it worked well when in jlink jtag mode, but halted after connected and send several packets of data when work alone. I used attach function and found it ended in the loop of hw_hard_fault.c.
What would be the reason?
Thanks a lot.
Regards.
Duan
请问下，DA14681作为蓝牙主机的话最多可以连接多少个DA从机。谢谢
