MARVEL/hpw421
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 1 Wiki Activity

hpw422初始版本

Browse Source
This commit is contained in:
xushaoxiang
2026-06-04 09:13:55 +08:00
commit 982da04a92
3279 changed files with 860351 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
project/example/driver/spi_slave/app/src/spi_slave.c
+132
View File
@@ -0,0 +1,132 @@
/*!
* \file spi_slave.c
*
* \brief Target spi slave device implementation
*
* \copyright Revised BSD License, see section \ref LICENSE.
*
* \code
*
* _ __ _ ________ _
* | |/ /(_)___ / ____/ /_ (_)___
* | // / __ \/ / / __ \/ / __ \
* / |/ / / / / /___/ / / / / /_/ /
* /_/|_/_/_/ /_/\____/_/ /_/_/ .___/
* /_/
* (C) 2022-2025 XinChip
*
* \endcode
*
* \author ( XinChip ) Alex-J
*
* \author ( XinChip )
*/
/*-----------------------------------------------------------------------------------
INCLUDE HEADE FILES
------------------------------------------------------------------------------------*/
#include "spi_slave.h"
#include "xc_drv_spi.h"
/*------------------------------------------------------------------------------------
Macros
-------------------------------------------------------------------------------------*/
#define SL_NODMA_BUFFER_LEN 16U
/*------------------------------------------------------------------------------------
Global Variables
-------------------------------------------------------------------------------------*/
/*------------------------------------------------------------------------------------
Functions
-------------------------------------------------------------------------------------*/
/**
* @brief spi_slave_demo
* @details
* @param void
* @retval void
*/
void spi_slave_demo(void)
{
DEBUG("__SPI_SLAVE_DEMO__\r");
SPI_InitCfg_t spi_cfg = {0};
GPIO_InitCfg_t gpio_cfg = {0};
gpio_cfg.Mux = GPIO_Mux0;
gpio_cfg.Dir = GPIO_DIR_INPUT;
gpio_cfg.FunSel = SSI1_CLK;
gpio_cfg.Int = NOT_INT;
gpio_cfg.Pull = GPIO_PULLDOWN;
gpio_cfg.Pin = GPIO_5;
xc_gpio_init(&gpio_cfg);
gpio_cfg.FunSel = SSI1_SSN;
gpio_cfg.Pin = GPIO_15;
xc_gpio_init(&gpio_cfg);
gpio_cfg.Dir = GPIO_DIR_OUTPUT;
gpio_cfg.FunSel = SSI1_TX;
gpio_cfg.Pin = GPIO_16;
xc_gpio_init(&gpio_cfg);
gpio_cfg.Dir = GPIO_DIR_INPUT;
gpio_cfg.FunSel = SSI1_RX;
gpio_cfg.Pin = GPIO_17;
xc_gpio_init(&gpio_cfg);
spi_cfg.Mode = SPI_MODE_SLAVE;
spi_cfg.DataSize = SSI_CTRL0_DFS_LEN_8BIT;
spi_cfg.Direction = SSI_CTRL0_TMOD_WR;
spi_cfg.BaudRatePrescaler = SSI_BAUD_DIV_8;
spi_cfg.CLKPolarity = SSI_CTRL0_SCPOL_LOW;
spi_cfg.CLKPhase = SSI_CTRL0_SCPHA_TRAIL;
spi_cfg.FirstBit = SPI_FirstBit_MSB;
uint8_t spi_handle = SPI1_IDX;
xc_spi_init(spi_handle, &spi_cfg);
uint8_t txbuff[SL_NODMA_BUFFER_LEN];
uint8_t rxbuff[SL_NODMA_BUFFER_LEN];
xc_spi_rxftl_fifo_set(spi_handle, SSI_RXFTL_FIFO_7);
xc_spi_enable_it(spi_handle, SSI_IE_RXFIE_ENABLE);
DEBUG("Write buffer: \n");
for (int i = 0; i < sizeof(txbuff); i++) {
txbuff[i] = i + 1;
PRINT("%02x ", txbuff[i]);
}
PRINT("\n");
xc_spi_write_and_read_data(spi_handle,(uint8_t *)txbuff,sizeof(txbuff),
(uint8_t *)rxbuff,sizeof(rxbuff));
DEBUG("Read buffer: \n");
for (int i = 0; i < sizeof(rxbuff); i++) {
PRINT("%02x ", rxbuff[i]);
}
PRINT("\n");
DEBUG("__SPI_END__\n");
DEBUG("Write buffer: \n");
memset((uint8_t *)txbuff, 0xbb, sizeof(txbuff));
for (int i = 0; i < sizeof(txbuff); i++) {
PRINT("%02x ", txbuff[i]);
}
PRINT("\n");
xc_spi_write_and_read_data(spi_handle,(uint8_t *)txbuff,sizeof(txbuff),
(uint8_t *)rxbuff,sizeof(rxbuff));
DEBUG("Read buffer: \n");
for (int i = 0; i < sizeof(rxbuff); i++) {
PRINT("%02x ", rxbuff[i]);
}
PRINT("\n");
DEBUG("__SPI_END2__\n");
}