nRF51822 usb dongle as SPI slave and LPC1343 as SPI master

RE: nRF51822 usb dongle as SPI slave and LPC1343 as SPI master

nithin — Sun, 13 Mar 2016 20:43:37 GMT

@Hung Bui: I am using P0.15, 16, 17, 18 for MOSI, MISO, SCLK and chip select. i figured out the problem. the problem was with the LPC1343 MCU SPI pins. thank you

RE: nRF51822 usb dongle as SPI slave and LPC1343 as SPI master

Hung Bui — Fri, 11 Mar 2016 15:51:20 GMT

@nithin: Which pin did you use ? The pin may already be used for something else on the board. Have you tried to hook a logic analyzer on the pin ?

RE: nRF51822 usb dongle as SPI slave and LPC1343 as SPI master

nithin — Fri, 11 Mar 2016 15:26:28 GMT

Hello Hung,

thank you for your reply. I want to connect the nRF51822 Dongle through SPI. I referred to the SPI_Slave example for nRF51822 and tried to implement it. nRF51822 is not getting the commands (SPIS_CMD_REG_WRITE). The SPI clock freq, endianness, polarity are all configured right.

RE: nRF51822 usb dongle as SPI slave and LPC1343 as SPI master

Hung Bui — Fri, 11 Mar 2016 12:22:03 GMT

Hi Nithin,

It's not very clear for me how you connect the nRF51822 dongle to the LPC1343. Do you plan to connect via USB port on the nRF51822 ? Note that that USB interface is for UART. If you want to connect to SPI, you can use any pin on the nRF51. It's flexible. Note that we also provide serialization library in the nRF5 SDK that you may want to have a look.