Da14583 RF output abnormal

Sat, 2019-05-11 02:35 -- Zhangkui

Hi Dialog:

I purchased 5000 pieces of da14583 from Avnet for production. After welding, it was found that about 10% of the boards had no Bluetooth broadcasting signal output. The faulty boards could download and run firmware normally, but there was no radio frequency signal output. Through the oscilloscope, we could see the strange waveform shown by the attachment at the foot of the RFIOP, while the normal working boards had no such signal output. Reverse the da14583 on the normal and abnormal working boards, you can find that the problem is caused by da14583.

JTag Connection Failing

Wed, 2019-05-01 00:23 -- ddustin

I have setup a jtag plug as per the attached schematic. I copied this schematic from one of the examples.

Then I got the Segger J-Link EDU device here: https://www.amazon.com/gp/product/B017U578UW

Plugged it into the J-Lilnk Emulator JTAG device here: https://www.amazon.com/gp/product/B00RBHOSTY so the cable could attach

And then I ran "JLinkGDBServer" and attempted to connect using SWD. The connection seems to fail every time.



Sun, 2019-04-28 12:15 -- lisir


how to configure two I2C devices using the driver from the SDK

Sun, 2019-04-28 10:56 -- lisir

we now use two I2C devices in our DA14583 project, the devices have different slave address, so i don`t know how to use the I2C dirver from the SDK to configure my devices,like how to use the function 'i2c_eeprom_init()' to initilize the I2C interface. And i also want to know the two devices can use the same IOs(SDA,SCL in the two devices tied with just two IOs) or they can use different IOs(SDA,SCL in the two devices tied with four IOs).


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