Embedded Software Engineer ||Linux ||C/C++ ||Embedded systems ||UART-SPI - I2C-RS485 ||Bootloader ||Y-Modem ||Delta Algorithms ||AES Encrypt ||Bluetooth HC-05 - TI CC1120 RF ||Bare metal||Firmware||smart meters
Implementing Software Master SPI using GPIO: - -You can implement Software Master SPI (bit-banging) using GPIO in your microcontroller. -This method allows you to manually control the SPI communication using software, rather than relying on dedicated hardware. Here's a step-by-step guide: - 1-Setup GPIO Pins: You need to configure the GPIO pins for the Clock (CLK), Master In Slave Out (MISO), and Chip Select (CS) lines. 2-Communication Process: Clock Control: The master device controls the clock (CLK) line. Reading Bit: You read the bit sent by the slave SPI device on the rising edge of the clock controlled by the master SPI.
