1 Reply Latest reply on Feb 16, 2015 10:47 PM by gptechinno

    SN8200 custom FW with WICED 2.4.1 : use SPI communication with Host as in SNIC FW

    gptechinno

      Dear all,

       

      Due to some very limiting performance in SNIC SPI FW*, we started to develop our own custom FW based on WICED 2.4.1, but hardware is already done based on SNIC SPI specification, so in our custom FW we need to use same pinout from the embedded STM32F103 for SPI and /ALRT, can Murata specify this pinout ?

       

       

      Best Regards,

       

       

       

       

      * with 03-44041 SNIC SPI FW, with only 2 sockets created (1 TCP and 1 UDP), the maximum packet size in UDP transmit is around 249 bytes, which make a lot of SPI communication from Host to SN8200 in order to make a stream video for example, which result in a very low frame rate because all SPI SNIC command must be answered before sending the next packet...

        • 1. Re: SN8200 custom FW with WICED 2.4.1 : use SPI communication with Host as in SNIC FW
          gptechinno

          I found the exact SN8200 pinout in most recent datasheet :

           

               

          STM32F103RF/205RGSN8200
          PinSignalPinSignal
          PA13JTMS, SWDIO36JTMS
          PA15JTDI, SPI3_NSS, I2S3_WS37JTDI/SPI_NSS
          PA14JTCK, SWCLK38JTCK
          PB3JTDO, TRACESWO, SPI3_SCK, I2S3_CK40JTDO/SPI_SCK
          PB4NJTRST, SPI3_MISO41JTRST/SPI_MISO
          PB5I2C1_SMBA, SPI3_MOSI, I2S3_SD42SPI_MOSI
          PA9UART1_TX32UART_TX
          PA10UART1_RX33UART_RX
          PA11UART1_CTS, USB2_DM, CAN_RX34UART_CTS
          PA12UART1_RTS, USB2_DP, CAN_TX35UART_RTS
          PB6I2C1_SCL, TIM4_CH143I2C_SCL
          PB7I2C1_SDA, TIM4_CH244I2C_SDA