Zbigniew Druzbacki / Mbed 2 deprecated SPI_Slave

SPI slave program to enable communication between the FPGA and the STM32L432 board.

Dependencies:   mbed

SPI.h@11:366f1186c121, 2019-03-19 (annotated)

Committer:
Zbyszek
Date:
Tue Mar 19 01:26:11 2019 +0000
Revision:
11:366f1186c121
Parent:
1:6766e7f4f12f
Child:
13:c7e8e277f884
Several IMUs can now be read using STM32L432.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Zbyszek 0:8e367d6d8f03 1 #ifndef _SPI_H_
Zbyszek 0:8e367d6d8f03 2 #define _SPI_H_
Zbyszek 0:8e367d6d8f03 3 #define SCK_slave 5
Zbyszek 0:8e367d6d8f03 4 #define MISO_slave 6
Zbyszek 0:8e367d6d8f03 5 #define MOSI_slave 7
Zbyszek 11:366f1186c121 6 #define CS_slave 8
Zbyszek 11:366f1186c121 7
Zbyszek 11:366f1186c121 8
Zbyszek 11:366f1186c121 9
Zbyszek 11:366f1186c121 10 #define CCR_EN 0
Zbyszek 11:366f1186c121 11 #define CCR_TCIE 1
Zbyszek 11:366f1186c121 12 #define CCR_HTIE 2
Zbyszek 11:366f1186c121 13 #define CCR_TEIE 3
Zbyszek 11:366f1186c121 14 #define CCR_DIR 4
Zbyszek 11:366f1186c121 15 #define CCR_CIRC 5
Zbyszek 11:366f1186c121 16 #define CCR_PINC 6
Zbyszek 11:366f1186c121 17 #define CCR_MINC 7
Zbyszek 11:366f1186c121 18 #define CCR_PSIZE 8
Zbyszek 11:366f1186c121 19 #define CCR_MSIZE 10
Zbyszek 11:366f1186c121 20 #define CCR_PL 12
Zbyszek 11:366f1186c121 21 #define CCR_MEM2MEM 14
Zbyszek 0:8e367d6d8f03 22
Zbyszek 0:8e367d6d8f03 23 #define clr_CS() GPIOA->BSRR=(1u<<(CS_slave+16))
Zbyszek 0:8e367d6d8f03 24 #define set_CS() GPIOA->BSRR=(1u<<CS_slave)
Zbyszek 0:8e367d6d8f03 25
Zbyszek 11:366f1186c121 26 #define CLEAR_SPI1_CR2_RXDMAEN_BIT() SPI1->CR2 &= ~(0x01<<0)
Zbyszek 11:366f1186c121 27 #define SET_SPI1_CR2_RXDMAEN_BIT() SPI1->CR2 |= (0x01<<0)
Zbyszek 11:366f1186c121 28
Zbyszek 11:366f1186c121 29 #define CLEAR_SPI1_CR2_TXDMAEN_BIT() SPI1->CR2 &= ~(0x01<<1)
Zbyszek 11:366f1186c121 30 #define SET_SPI1_CR2_TXDMAEN_BIT() SPI1->CR2 |= (0x01<<1)
Zbyszek 11:366f1186c121 31
Zbyszek 11:366f1186c121 32 #define DMA1_CH2_DISABLE() DMA1_Channel2->CCR &= ~(0x01<<CCR_EN)
Zbyszek 11:366f1186c121 33 #define DMA1_CH3_DISABLE() DMA1_Channel3->CCR &= ~(0x01<<CCR_EN)
Zbyszek 11:366f1186c121 34
Zbyszek 0:8e367d6d8f03 35 //#include <stm32f4xx.h>
Zbyszek 0:8e367d6d8f03 36 #include <stm32l4xx.h> //Uncomment this to use the nano board and comment the one above
Zbyszek 0:8e367d6d8f03 37
Zbyszek 0:8e367d6d8f03 38 int transfer_spi_slave(unsigned short send_val);
Zbyszek 0:8e367d6d8f03 39 int transfer_spi_master(unsigned short send_val);
Zbyszek 0:8e367d6d8f03 40 void init_spi1(void);
Zbyszek 0:8e367d6d8f03 41
Zbyszek 0:8e367d6d8f03 42 #endif