From 5d29fe79d30f430ae326d9dc57ccfaed6fe61328 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= Date: Tue, 8 Mar 2016 16:10:33 +0100 Subject: Another full update of current work --- usi_spi.h | 66 --------------------------------------------------------------- 1 file changed, 66 deletions(-) delete mode 100644 usi_spi.h (limited to 'usi_spi.h') diff --git a/usi_spi.h b/usi_spi.h deleted file mode 100644 index 18534ab..0000000 --- a/usi_spi.h +++ /dev/null @@ -1,66 +0,0 @@ -#include -#include -#include - -#include "mcu/mcu_def.h" - -#ifndef _IOE_USI_SPI_H_ -#define _IOE_USI_SPI_H_ - -#ifndef MCUSUPPORT_USI -#error "No USI interface is known on your mcu." -#endif - -enum usiSpiMode { - // Device is initialized as master - USI_SPI_MODE_MASTER, - // Device is initialized as slave - USI_SPI_MODE_SLAVE, -}; - -/* - * Initialize SPI on USI device - * - * Parameters: - * mode - Specify mode of SPI interface - */ -void usi_spi_init(enum usiSpiMode mode); -/* - * Returns NULL when device is not busy. - * When device is busy return values in non-zero. - */ -int8_t usi_spi_busy(void); -/* - * Blocks processor until device is not busy. - */ -void usi_spi_join(void); -/* - * Swap bytes with slave over SPI. - * This function blocks execution until device isn't busy. - * WARNING: Invoke this only when interface is initialized in MASTER mode. - */ -uint8_t usi_spi_send(uint8_t data); -/* - * Swaps byte with slave over SPI. - * This function isn't checking if device is busy, but it's not blocking execution. - * WARNING: Invoke this only when interface is initialized in MASTER mode. - */ -uint8_t usi_spi_transfer(uint8_t data); -/* - * Expose data for next master request. - * Please don't use this when device is busy. - * Best place to call this is usi_spi_retrieve(). - * WARNING: Invoke this only when interface is initialized in SLAVE mode. - */ -void usi_spi_expose(uint8_t data); - -/* - * This function must be defined by user. - * This function is called every time transfer is finished. - * And until return from this function interrupts are disabled. - * WARNING: Please define this function in your code. - */ -void usi_spi_receive(uint8_t data); - - -#endif /* _IOE_USI_SPI_H_ */ -- cgit v1.2.3