GitHub – lorf/csr-spi-ftdi: USB SPI programmer/debugger for CSR BlueCore bluetooth chips, based on FTDI USB to UART converter, for Linux and Windows Engineering and technology notes Jovan Stosic June 16, 2017 Source: GitHub – lorf/csr-spi-ftdi: USB SPI programmer/debugger for CSR BlueCore bluetooth chips, based on FTDI USB to UART converter, for Linux and Windows