Question
STM32MP157 processor and OpenAMP
Hello i have STM32MP157 board with A7 and M4 processors, i am trying to setup OpenAMP which works when i use the OpenAMP_TTY_echo
But when i try to create a new project from:
SMT32Cube IDE 1.16.0 version
STM32MP1 version: 1.6.0
I cannot seem to make it work
For example, when i deploy the example it properly opens the port /dev/ttyRPMSG0 and when i read with this command cat /dev/ttyRPMSG0 it wait for messages , so i connect to another temrinal send some messages and receive them perfectly
But when i try to use generated project the port is not even open and this is my output of the rpmsg0 :
[ 1.668065] rpmsg_sdb_drv_init(rpmsg_sdb): Init done
[ 40.830549] virtio_rpmsg_bus virtio0: creating channel rpmsg-tty addr 0x400
[ 40.837511] virtio_rpmsg_bus virtio0: creating channel rpmsg-tty addr 0x401
[ 40.848325] virtio_rpmsg_bus virtio0: rpmsg host is online
Looks good , also when starting the processor:
root@myir:~# dmesg | grep remoteproc
[ 1.667805] remoteproc remoteproc0: releasing m4
[ 1.749203] remoteproc remoteproc0: releasing m4
[ 1.788187] remoteproc remoteproc0: releasing m4
[ 1.923612] remoteproc remoteproc0: releasing m4
[ 4.222566] remoteproc remoteproc0: m4 is available
[ 40.754770] remoteproc remoteproc0: powering up m4
[ 40.797573] remoteproc remoteproc0: Booting fw image rproc-m4-fw, size 2443240
[ 40.865267] remoteproc remoteproc0: remote processor m4 is now up
I am not sure what i am doing wrong
This is my code
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2024 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "openamp.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <string.h>
#include <virt_uart.h>
#include <ctype.h> // For character transformations like toupper
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
#define MAX_BUFFER_SIZE RPMSG_BUFFER_SIZE
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
IPCC_HandleTypeDef hipcc;
/* USER CODE BEGIN PV */
VIRT_UART_HandleTypeDef huart0;
VIRT_UART_HandleTypeDef huart1;
__IO FlagStatus VirtUart0RxMsg = RESET;
uint8_t VirtUart0ChannelBuffRx[MAX_BUFFER_SIZE];
uint16_t VirtUart0ChannelRxSize = 0;
__IO FlagStatus VirtUart1RxMsg = RESET;
uint8_t VirtUart1ChannelBuffRx[MAX_BUFFER_SIZE];
uint16_t VirtUart1ChannelRxSize = 0;
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_IPCC_Init(void);
int MX_OPENAMP_Init(int RPMsgRole, rpmsg_ns_bind_cb ns_bind_cb);
/* USER CODE BEGIN PFP */
void VIRT_UART0_RxCpltCallback(VIRT_UART_HandleTypeDef *huart);
void VIRT_UART1_RxCpltCallback(VIRT_UART_HandleTypeDef *huart);
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initialize the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
if(IS_ENGINEERING_BOOT_MODE())
{
/* Configure the system clock */
SystemClock_Config();
}
/* USER CODE END Init */
/*HW semaphore Clock enable*/
__HAL_RCC_HSEM_CLK_ENABLE();
/* IPCC initialisation */
MX_IPCC_Init();
MX_OPENAMP_Init(RPMSG_REMOTE, NULL);
/* OpenAmp initialisation ---------------------------------*/
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
/* USER CODE BEGIN 2 */
/*
* Create Virtual UART device
* defined by a rpmsg channel attached to the remote device
*/
if (VIRT_UART_Init(&huart0) != VIRT_UART_OK) {
Error_Handler();
}
if (VIRT_UART_Init(&huart1) != VIRT_UART_OK) {
Error_Handler();
}
/*Need to register callback for message reception by channels*/
if(VIRT_UART_RegisterCallback(&huart0, VIRT_UART_RXCPLT_CB_ID, VIRT_UART0_RxCpltCallback) != VIRT_UART_OK)
{
Error_Handler();
}
if(VIRT_UART_RegisterCallback(&huart1, VIRT_UART_RXCPLT_CB_ID, VIRT_UART1_RxCpltCallback) != VIRT_UART_OK)
{
Error_Handler();
}
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
OPENAMP_check_for_message();
/* USER CODE END WHILE */
if (VirtUart0RxMsg)
{
VirtUart0RxMsg = RESET;
VIRT_UART_Transmit(&huart0, VirtUart0ChannelBuffRx, VirtUart0ChannelRxSize);
}
if (VirtUart1RxMsg) {
VirtUart1RxMsg = RESET;
VIRT_UART_Transmit(&huart1, VirtUart1ChannelBuffRx, VirtUart1ChannelRxSize);
}
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_LSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSIDivValue = RCC_HSI_DIV1;
RCC_OscInitStruct.LSIState = RCC_LSI_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
RCC_OscInitStruct.PLL2.PLLState = RCC_PLL_NONE;
RCC_OscInitStruct.PLL3.PLLState = RCC_PLL_NONE;
RCC_OscInitStruct.PLL4.PLLState = RCC_PLL_NONE;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** RCC Clock Config
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_ACLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2
|RCC_CLOCKTYPE_PCLK3|RCC_CLOCKTYPE_PCLK4
|RCC_CLOCKTYPE_PCLK5;
RCC_ClkInitStruct.AXISSInit.AXI_Clock = RCC_AXISSOURCE_HSI;
RCC_ClkInitStruct.AXISSInit.AXI_Div = RCC_AXI_DIV1;
RCC_ClkInitStruct.MCUInit.MCU_Clock = RCC_MCUSSOURCE_HSI;
RCC_ClkInitStruct.MCUInit.MCU_Div = RCC_MCU_DIV1;
RCC_ClkInitStruct.APB4_Div = RCC_APB4_DIV1;
RCC_ClkInitStruct.APB5_Div = RCC_APB5_DIV1;
RCC_ClkInitStruct.APB1_Div = RCC_APB1_DIV1;
RCC_ClkInitStruct.APB2_Div = RCC_APB2_DIV1;
RCC_ClkInitStruct.APB3_Div = RCC_APB3_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief IPCC Initialization Function
* @PAram None
* @retval None
*/
static void MX_IPCC_Init(void)
{
/* USER CODE BEGIN IPCC_Init 0 */
/* USER CODE END IPCC_Init 0 */
/* USER CODE BEGIN IPCC_Init 1 */
/* USER CODE END IPCC_Init 1 */
hipcc.Instance = IPCC;
if (HAL_IPCC_Init(&hipcc) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN IPCC_Init 2 */
/* USER CODE END IPCC_Init 2 */
}
/* USER CODE BEGIN 4 */
void VIRT_UART0_RxCpltCallback(VIRT_UART_HandleTypeDef *huart)
{
uint16_t total_len;
const char *response;
// Ensure the received message is null-terminated
uint16_t received_size = (huart->RxXferSize < MAX_BUFFER_SIZE - 1) ? huart->RxXferSize : MAX_BUFFER_SIZE - 2;
memcpy(VirtUart0ChannelBuffRx, huart->pRxBuffPtr, received_size);
VirtUart0ChannelBuffRx[received_size] = '\0'; // Null-terminate
// Trim trailing whitespace and control characters
while (received_size > 0 &&
(VirtUart0ChannelBuffRx[received_size - 1] == '\n' ||
VirtUart0ChannelBuffRx[received_size - 1] == '\r' ||
VirtUart0ChannelBuffRx[received_size - 1] == ' ' ||
VirtUart0ChannelBuffRx[received_size - 1] == '\t')) {
VirtUart0ChannelBuffRx[received_size - 1] = '\0';
received_size--;
}
// Check the received message and set the response
if (strcmp((char *)VirtUart0ChannelBuffRx, "ledon") == 0)
{
response = "The LED is on";
}
else if (strcmp((char *)VirtUart0ChannelBuffRx, "ledoff") == 0)
{
response = "The LED is off";
}
else
{
response = "Unknown command";
}
// Copy the response into the buffer
total_len = strlen(response);
if (total_len >= MAX_BUFFER_SIZE)
{
total_len = MAX_BUFFER_SIZE - 1;
}
memcpy(VirtUart0ChannelBuffRx, response, total_len);
VirtUart0ChannelBuffRx[total_len] = '\0'; // Null-terminate
// Update the size for transmission
VirtUart0ChannelRxSize = total_len;
VirtUart0RxMsg = SET;
}
void VIRT_UART1_RxCpltCallback(VIRT_UART_HandleTypeDef *huart)
{
/* copy received msg in a variable to sent it back to master processor in main infinite loop*/
VirtUart1ChannelRxSize = huart->RxXferSize < MAX_BUFFER_SIZE? huart->RxXferSize : MAX_BUFFER_SIZE-1;
memcpy(VirtUart1ChannelBuffRx, huart->pRxBuffPtr, VirtUart1ChannelRxSize);
VirtUart1RxMsg = SET;
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#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\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
I searched the internet but with no luck , not sure what i am missing
If somebody could help
Thank you