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/**
******************************************************************************
* File Name : main.c
* Description : Main program body
******************************************************************************
*
* COPYRIGHT(c) 2016 STMicroelectronics
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32l0xx_hal.h"
#include "spi.h"
#include "usart.h"
#include "gpio.h"
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
#define SPI_PIPE_LEN 20
//#define UART_PIPE_LEN 20
uint8_t AR_SPI_TX[SPI_PIPE_LEN] = {0};
uint8_t AR_SPI_RX[SPI_PIPE_LEN] = {0};
//uint8_t AR_UART_TX[SPI_PIPE_LEN] = {0};
//uint8_t AR_UART_RX[SPI_PIPE_LEN] = {0};
uint32_t baudRateList[5] = {(uint32_t)SPI_BAUDRATEPRESCALER_32,(uint32_t)SPI_BAUDRATEPRESCALER_64,(uint32_t)SPI_BAUDRATEPRESCALER_128,(uint32_t)SPI_BAUDRATEPRESCALER_16,(uint32_t)SPI_BAUDRATEPRESCALER_8};
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
void Error_Handle(HAL_StatusTypeDef _state);
void spiTask0(uint8_t len);
void spiTask1(uint8_t cmd, uint8_t len);
void spiTask2(uint8_t len);
void spiTask3(uint8_t _CPOL, uint8_t _CPHA);
void spiTask4(uint8_t _firstBit,uint8_t _baudrate);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
int main(void)
{
/* USER CODE BEGIN 1 */
uint32_t counter = 0;
uint8_t spiCmd[3] = {0};
HAL_StatusTypeDef state;
/* USER CODE END 1 */
/* MCU Configuration----------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_SPI1_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
printf("instruction is like this CMD0 CMD1 CMD2. CMD0 is direction, CMD1 is what you want to input, CMD2 is length ");
printf("CMD0 is direction:0-just get data, 1-send a command and get data,2-send lots of data ");
printf("when CMD0 is 2, CMD2 means how long what you will send ");
printf("when CMD0 is 3, you can config spi. CMD1 means CPOL(0-LOW,1-HIGH,other no change),CMD2 means CPHA(0:1st edge, 1:2ns edge,other- no change) ");
printf("when CMD0 is 4, you can config spi. CMD1 means First bit select(0-MSB,1-LSB,other-no change).CMD2 Baud rate(0-1Mbps,1-500Kbps,2-250Kbps,3-2Mbps,4-4Mbps,other-nochange) ");
printf("When CMD0 is 5, give some tips again.");
printf("You can't give a too long parameter for CMD2. It should be not bigger than %d",(uint8_t)SPI_PIPE_LEN);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
printf("counter is %d ",counter++);
// HAL_GPIO_TogglePin(LD2_GPIO_Port,LD2_Pin);
// HAL_Delay(500);
HAL_GPIO_WritePin(LD2_GPIO_Port,LD2_Pin,GPIO_PIN_SET);
printf("Please give me a instruction for SPI ");
state = HAL_UART_Receive(&huart1,spiCmd,3,0xffffffff);
if( state != HAL_OK){
printf("UART is ");
Error_Handle(state);
}
else{
HAL_GPIO_WritePin(LD2_GPIO_Port,LD2_Pin,GPIO_PIN_RESET);
switch(spiCmd[0]){
case 0: printf("you want to get %d data from spi device",spiCmd[2]);spiTask0(spiCmd[2]);break;
case 1: printf("you want to send command:0x%X to spi device",spiCmd[1]);spiTask1(spiCmd[1],spiCmd[2]);break;
case 2: printf("you want to input %d byte data",spiCmd[2]);spiTask2(spiCmd[2]);break;
case 3: printf("you want to config CPOL and CPHA.");break;
case 4: printf("you want to config First bit and Baudrate.");break;
default: printf("what you have input is wrong");break;
}
}
}
/* USER CODE END 3 */
}
/** System Clock Configuration
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_PeriphCLKInitTypeDef PeriphClkInit;
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLLMUL_8;
RCC_OscInitStruct.PLL.PLLDIV = RCC_PLLDIV_2;
HAL_RCC_OscConfig(&RCC_OscInitStruct);
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1);
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK2;
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit);
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
/* SysTick_IRQn interrupt configuration */
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}
/* USER CODE BEGIN 4 */
void Error_Handle(HAL_StatusTypeDef _state){
switch(_state){
case HAL_ERROR: printf("error");break;
case HAL_TIMEOUT: printf("timeout");break;
case HAL_BUSY: printf("busy");break;
default: printf(" in unknow error");break;
}
}
void spiTask0(uint8_t len){
HAL_StatusTypeDef st = HAL_SPI_Receive(&hspi1,AR_SPI_RX,len,1000);
if(st != HAL_OK){
printf("SPI receive task is ");
Error_Handle(st);
return;
}
else{
printf("so what you want to get is:");
for(uint8_t cir=0;cir<len;cir++){
if(cir%3 == 0) printf(" ");
printf("0x%X ",AR_SPI_RX[cir]);
}
}
}
void spiTask1(uint8_t cmd, uint8_t len){
uint8_t send = cmd;
if(len == 0) len = 1;
else if(len > SPI_PIPE_LEN){
len = SPI_PIPE_LEN;
}
HAL_StatusTypeDef st = HAL_SPI_TransmitReceive(&hspi1,&send,AR_SPI_RX,len,1000);
if(st != HAL_OK){
printf("SPI transmit task is ");
Error_Handle(st);
return;
}
else{
printf("Device have succeed to receive your command ");
printf(" and device give you some data:");
for(uint8_t cir=0;cir<len;cir++){
if(cir%3 == 0) printf(" ");
printf("0x%X ",AR_SPI_RX[cir]);
}
printf("");
}
}
void spiTask2(uint8_t len){
if(len == 0) len = 1;
else if(len > SPI_PIPE_LEN){
len = SPI_PIPE_LEN;
}
HAL_StatusTypeDef state = HAL_UART_Receive(&huart1,AR_SPI_TX,len,0xffff);
if( state != HAL_OK){
printf("UART is ");
Error_Handle(state);
return;
}
else{
printf("what you want to get from spi deceive is:");
for(uint8_t cir2 = 0;cir2<len;cir2++){
if(cir2%3 == 0) printf(" ");
printf("0x%X ",AR_SPI_TX[cir2]);
}
printf("");
}
}
void spiTask3(uint8_t _CPOL, uint8_t _CPHA){
if( (_CPOL < 2) || (_CPHA < 2) ){
if(_CPOL == 0){
hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
printf("CPOL will set to LOW and ");
}
else if(_CPOL == 1){
hspi1.Init.CLKPolarity = SPI_POLARITY_HIGH;
printf("CPOL will set to HIGH and ");
}
if(_CPHA == 0){
hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
printf("CPHA will set to 1st Edge ");
}
else if(_CPHA == 1){
hspi1.Init.CLKPhase = SPI_PHASE_2EDGE;
printf("CPHA will set to 2nd Edge ");
}
HAL_SPI_Init(&hspi1);
}
}
void spiTask4(uint8_t _firstBit,uint8_t _baudrate){
uint16_t myBaudRate[5] ={1000,500,250,2000,4000};
if( (_firstBit < 2) || (_baudrate < 5) ){
if(_firstBit == 0){
hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
printf("First bit will set to MSB and ");
}
else if(_firstBit == 1){
hspi1.Init.FirstBit = SPI_FIRSTBIT_LSB;
printf("First bit will set to LSB and ");
}
if(_baudrate <= 4){
hspi1.Init.BaudRatePrescaler = baudRateList[_baudrate];
printf("BaudRate will set to %dKbps",myBaudRate[_baudrate]);
}
HAL_SPI_Init(&hspi1);
}
}
/* USER CODE END 4 */
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d", file, line) */
/* USER CODE END 6 */
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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