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cc2540 controlling BQ24295 and SD card

sheetal verma1
Intellectual 600 points
Other Parts Discussed in Thread: BQ24295, CC2540, CC2541

1)Our device is using CC2540 host to control BQ24295 module, is it possible to charge the peripheral through PMID pin of BQ24295  and do data transfer from memory module to the phone simultaneously ?

When the Mobile phone is working as a host and my device is master, is it possible for mobile charging and data transfer to happen simultaneously ?

2. In our device, the BLE module and SD card function together ( for data transfer) , I need to know if the processing speed of 8051 is enough to handle both simultaneously .

3. We are integrating SD card functionality with CC2540.
we need the following
a. USB booloader source code.
b. USB mass storage stack.

c. USB sniffing tool for seeing the data packet transfer, like Btool is available for sniffing the data packets for BLE.?

  • 0
    TI__Guru** 106705 points

    Hi Sheetal,

    We need some more details to be able to answer your questions.If the CC2540 is working as a BLE peripheral I see no problems in it simultanously controlling the BQ24295 (through I2C I assume). Note that the CC2540 does not have an I2C module, so this must be bit-banged unless you switch to CC2541 or the CC26xx (I am not sure if the USB is required in your system).

    2. This depends on the data rate and the amount of data.

    3 c: Packet sniffer runnig on the CC2540 USB Dongle can be found here: www.ti.com/.../PACKET-SNIFFER


    Cheers,
    Fredrik

  • 0 in reply to Fredrik K
    Intellectual 600 points

    I will provide some more clarity here.

    1.We are using BQ24295 to charge a mobile phone through a LiPo battery. At the same time,we want to do a data transfer from my inbuilt SD card module in the device to the phone and from phone to the SD card. Hence the question,
    When the Mobile phone is working as a host and my device is master, is it possible for mobile charging and data transfer to happen simultaneously ?

    2. We know this depends on speed. But the question is can u guide us on any  of known issues ?

    3. www.ti.com/.../PACKET-SNIFFER - Gives BLE packet sniffer. we are asking for USB data packet sniffer, if available. But getting confusied it with USB dongle.

    my other points of 3a and 3b are not even mentioned.
    I need the following  ASAP
    a. USB booloader source code.
    b. USB mass storage stack.