"# Question 1: SPI communications\n", "\n", "\n", "The pair of signals plotted below are the data signal and clock signal being transmitted as part of the SPI (serial peripheral interface) protocol. \n", "\n", "(a) Determine the SPI clock frequency. **[1 mark]**\n", "\n", "(b) Determine the average overall data transfer rate (in bits per second). Comment on the result obtained. **[2 marks]**\n", "\n", "(c) what ascii character code is being transmitted as the data signal, and what letter this corresponds to. Assume that the most significant bit (MSB) is transmitted first. **[2 marks]**\n", "\n"

Fig: 1