• Bootloader for BCM20736S (CYW20736) over SPI

    Folks, I am investigating whether it is possible to update the [user] firmware on the BCM20736S. On the product, the 20736 is connected to a microcontroller via the SPI port. The HCI UART is only accessible via an ex...
    last modified by RoWo_4704901
  • SPI, UART and timing

    Hi,   I have a BCM20736S custom board and a second UART custom board. My BCM20736S board needs to always send and receive periodic data from the UART board. Every 40ms data is sent from the BCM20736S board t...
    last modified by Juar_2150386
  • Guidance to pick a Bluetooth module that support SPP or BLE serial port

    Hi,     Recently, I need to choose a Bluetooth Module which can support Serial Port Portfolio or it has solution to create serial profile.   Also, it needs to have RTS pin as well as bidirec...
    last modified by wihu_4601901
  • Why does my program get stuck at the line: spiffyd_rxData(SPIFFYD_2, 1 ,&byteReceived); when I set the spiffyd_configure() clock speed to 0?

    I want my BCM20737 chip to be the slave, and an FPGA on my PC board to be the master. I'm trying to send data over SPI from the FPGA to the BCM20737 chip. When I set the spiffyd_configure() clock speed to a value othe...
    last modified by PhRi_4317641
  • How to change Transmit power to 9 db on CYBT-353027-EVAL board ?

    Dear All,   Would please help me to figure out how i can change Transmit power to 9db on CYBT-353027-EVAL?   Thanks
    last modified by user_2846711
  • P_UART and other questions for 20737S

    P_UART question There may be two sets of P_UART pins P32 (Tx) and P33 (Rx) P0 (Tx) and P2 (Rx)   I have used P32/P33 for debug traces. Would it be possible to use the following set-ups at the same time? Use P32/P...
    last modified by AnBa_330971
  • BCM20737S extra memory on SPI

    Hi, I would like to attach an external memory on the SPI bus and I am not sure if that is going to affect the operation of the internal memory. The way I understand it, this shouldn't affect anything and when progr...
    last modified by KoM_2154881
  • SPI GPIO config

    Hi all,   I have a custom board withe the BLE connected to an external flash memory on following pins:   P3 as CLK P4 as MOSI P25 as MISO P32 as Chip Select   In spiffydriver.h there is no combination ...
    last modified by user_2160001
  • what SPI slave sends when TX fifo is empty

    Hello,   I'd like to use BCM920737 as a SPI slave configuration, following the example at apps/spi_comm_slave I can send and receive data.   However I have a question : when the chip has nothing to send an...
    last modified by shyoc_2185486
  • Very long SPI Transfer on the BCM20737 (con't)

    As a follow on to the discussion here: Very long SPI Transfer on the BCM20737   I also have this question, and would like to offer the beginning of a solution:   I'd like to make my own buffer of maybe 512...
    last modified by op_2169936

    Hi,   I'm following the "Application Note BCM920732HW" and using its function to use SPI in Master mode and I'm unable to do for BCM20737S. I am using following PINs: P3 as CLK P4 as MOSI P25 as MISO and P3...
    last modified by ghalibjanjua
  • Very long SPI Transfer on the BCM20737

    I need to perform SPI transfers of more than 16 bytes. As there is no DMA available for that, is there some reliable way to do that on that device. Note that I only uses the MOSI signal. I don't care about the clock o...
    last modified by userc_14612
  • SPIFFY2 and Peripheral UART pin selection

    I am trying to see if I can get peripheral UART running using P32 for TX and P2 for RX on the 20736. I noticed in Application Note BCM920732HW (Wiced Smart Hardware Interfaces) it says "When both SPIFFY2 and periphera...
    last modified by legic_1490776
  • BCM2073XS GPIO Basics

    The BCM2073x chip (SoC) has 40 logical GPIOs (P0-P39).   The GPIOs themselves are broken out into three separate ports (meaningful when you start programming):   • P0 through P15 on port0 • P1...
    last modified by MichaelF_56
  • How to tx data exceed 16 bytes?

    Hi,   The document named "WICED Smart Hardware Interfaces" tell the maximum transaction size is 16 bytes for SPIFFY1 and SPIFFY2. I tried to send 24 bytes data by the following code.   static const int CS_...
    last modified by moicci
  • WICED Smart User's Guide

    Table of Contents: Product Selection Product Evaluation WICED Sense Product Development Manufacturing / Production Intro Video Selector Guide Hot Sheet FAQ Data Sheets SDK HW Guide Installation Errors To...
    last modified by kwang
  • SPI and chip select timing

    In our application we are trying to use a flash chip that has the requirement that the CS line be raised shortly after the last bit is clocked in via SPI.  We try to raise the line directly after the SPI write co...
    last modified by legic_1490776
  • ROM code driving SPI CS before initialization

    We are testing out the SPI2 slave communications of the BCM20736E with the following pin configuration: SPI_2_CS: P32 SPI_2_CLK: P24 SPI_2_MISO: P25 SPI_2_MOSI: P27   Prior to our code being loaded and execu...
    last modified by temic_1089541
  • Sending data to the BCM20737S from another MCU

    Hello,   I have been working with the BCM20737S to reading two pressure sensors running at 500hz. I now have to use two 1000hz pressure sensors. From other topics this seems like it wont be possible and will st...
    last modified by llynch
  • SPI flow control

    Hi,      When I trace the sample codes of SPI COMM (slave or master), there is always a flow control pin (input/output). Is this mandatory to make sure the data transmission is correct? According ...
    last modified by fochc_2132071