main.c
46 lines
| 1.8 KiB
| text/x-c
|
CLexer
jeandet@pc-de-jeandet3.lab-lpp.local
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r16 | #include <bsp.h> | ||
#include <stm32f4xx_spi.h> | ||||
#include <stm32f4xx_rcc.h> | ||||
#include <stm32f4xx_gpio.h> | ||||
jeandet@pc-de-jeandet3.LAB-LPP.LOCAL
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r18 | #include <stdio.h> | ||
jeandet@pc-de-jeandet3.lab-lpp.local
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r16 | #define CODEC_I2C_GPIO_AF GPIO_AF_I2C1 | ||
#define CODEC_I2C_GPIO GPIOB | ||||
#define CODEC_I2C_SCL_PIN GPIO_Pin_6 | ||||
#define CODEC_I2C_SDA_PIN GPIO_Pin_9 | ||||
#define CODEC_I2S_SCL_PINSRC GPIO_PinSource6 | ||||
#define CODEC_I2S_SDA_PINSRC GPIO_PinSource9 | ||||
int main() | ||||
{ | ||||
GPIO_InitTypeDef GPIO_InitStructure; | ||||
SPI_InitTypeDef SPI_InitStructure; | ||||
bsp_init(); | ||||
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE); | ||||
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE); | ||||
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15; | ||||
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; | ||||
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; | ||||
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; | ||||
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; | ||||
GPIO_Init(GPIOB, &GPIO_InitStructure); | ||||
GPIO_PinAFConfig(GPIOB, GPIO_PinSource13, GPIO_AF_SPI2); | ||||
GPIO_PinAFConfig(GPIOB, GPIO_PinSource14, GPIO_AF_SPI2); | ||||
GPIO_PinAFConfig(GPIOB, GPIO_PinSource15, GPIO_AF_SPI2); | ||||
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex; | ||||
SPI_InitStructure.SPI_Mode = SPI_Mode_Master; | ||||
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b; | ||||
SPI_InitStructure.SPI_CPOL = SPI_CPOL_High; | ||||
SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge; | ||||
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft; | ||||
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4; | ||||
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB; | ||||
SPI_InitStructure.SPI_CRCPolynomial = 7; | ||||
SPI_Init(SPI2, &SPI_InitStructure); | ||||
SPI_Cmd(SPI2, ENABLE); | ||||
while(1) | ||||
{ | ||||
while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET); | ||||
SPI_I2S_SendData(SPI2, 0x5a); | ||||
} | ||||
} | ||||