EEPROM emulator on STM32L053 - stm32

I known that isn't normal to use EEPROM emulator on a STM32L053, because it has is own EEPROM, but nowadays with the chip shortage, i was forcedto use an alternative MCU (STM32L053R8T6) instead of the "original design" (STM32F030C8T6), so i want to use the same code for both MCU, so the EEPROM emulator on the STM32L053R8T6.
But i'm having some difficulty using the EEPROM emulator on the STM32L053, the compiler didn't give any error, and the code run normmally, but didn't save any value to the EEPROM.
Header File:
#define ADDR_FLASH_PAGE_60 ((uint32_t)0x0800F000) /* Base # of Page 60, 1 Kbytes */
#define ADDR_FLASH_PAGE_61 ((uint32_t)0x0800F400) /* Base # of Page 61, 1 Kbytes */
#define ADDR_FLASH_PAGE_62 ((uint32_t)0x0800F800) /* Base # of Page 62, 1 Kbytes */
/* Define the size of the sectors to be used */
#define PAGE_SIZE (uint32_t) FLASH_PAGE_SIZE /* Page size */
/* EEPROM start address in Flash */
#define EEPROM_START_ADDRESS ((uint32_t) ADDR_FLASH_PAGE_60) /* EEPROM emulation start address */
/* Pages 0 and 1 base and end addresses */
#define PAGE0_BASE_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + 0x0000))
#define PAGE0_END_ADDRESS ((uint32_t)(EEPROM_START_ADDRESS + (PAGE_SIZE - 1)))
#define PAGE1_BASE_ADDRESS ((uint32_t)(ADDR_FLASH_PAGE_61))
#define PAGE1_END_ADDRESS ((uint32_t)(ADDR_FLASH_PAGE_61 + PAGE_SIZE - 1))
/* Used Flash pages for EEPROM emulation */
#define PAGE0 ((uint16_t) 0x0000)
#define PAGE1 ((uint16_t)((PAGE1_BASE_ADDRESS-PAGE0_BASE_ADDRESS)/PAGE_SIZE)) /* Virtual page nb between PAGE0_BASE_ADDRESS & PAGE1_BASE_ADDRESS*/
/* No valid page define */
#define NO_VALID_PAGE ((uint16_t)0x00AB)
/* Page status definitions */
#define ERASED ((uint16_t)0xFFFF) /* Page is empty */
#define RECEIVE_DATA ((uint16_t)0xEEEE) /* Page is marked to receive data */
#define VALID_PAGE ((uint16_t)0x0000) /* Page containing valid data */
/* Valid pages in read and write defines */
#define READ_FROM_VALID_PAGE ((uint8_t)0x00)
#define WRITE_IN_VALID_PAGE ((uint8_t)0x01)
/* Page full define */
#define PAGE_FULL ((uint8_t)0x80)
void EE_ReadData(void);
uint16_t EE_Init(void);
uint16_t EE_ReadVariable(uint16_t VirtAddress, uint16_t* Data);
uint16_t EE_WriteVariable(uint16_t VirtAddress, uint16_t Data);
#endif /* __EEPROM_H */
EEPROM Write Variable Function:
uint16_t EE_WriteVariable(uint16_t VirtAddress, uint16_t Data)
{
uint16_t Status = 0;
/* Write the variable virtual address and value in the EEPROM */
Status = EE_VerifyPageFullWriteVariable(VirtAddress, Data);
/* In case the EEPROM active page is full */
if (Status == PAGE_FULL)
{
/* Perform Page transfer */
Status = EE_PageTransfer(VirtAddress, Data);
}
/* Return last operation status */
return Status;
}

Related

What could be the cause of a constant voltage offset on the STM32L041G6 adc

I have been testing the ADC on my STM32L0 with 12-bit resolution and for some reason, every measurement I take has a 0.048 V offset. I've tried a different supply voltage (from 1.8 V to 3.3 V), but the offset stays there.
This offset starts at the first count, when I apply 0 V to the ADC input and read 130 counts (with 1.8 V Vdda) it stays for the whole range.
My voltage source is very stable and I've verified my ADC input voltage and the STM32 supply voltage with 3 different accurate pieces of measuring equipment.
The voltage is applied to the circuit through a bnc connector connected to a signal generator, in my case I use the Dc output option with high impedance on a normal signal generator. As for the code, I used stm32cubemx to generate some of the code but I didn't use any calibration function, so unless it is enabled by default, I dont do any calibration. As for the adc pin, I just used cubemx to set-up IN0 as an adc input and didn't touch anything else. Then to read the adc, I used 2 hal function "HAL_ADC_START()" and "HAL_ADC_PollForConversion()". Then I send the result to be read by uart.
The board I'm using is a custom PCB, but I only placed the STM32 and some passive components to get it to function (coupling capacitors and reset pull-up).
I also tested multiple boards with different configurations and I always get this offset voltage. I outputed Vrefint and measured it, and I got 1.225 V (specified is 1.224 V) so the ADC reference seems fine too.
I was wondering if someone has a suggestion on the possible cause of this offset error? I've been looking for a solution but I'm having no luck so far, so I would really appreciate the input of more experienced developers.
Here is a simplified version of the code I use :
/* USER CODE BEGIN Header */
/**
******************************************************************************
* #file adc.c
* #brief This file provides code for the configuration
* of the ADC instances.
******************************************************************************
* #attention
*
* Copyright (c) 2022 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 "adc.h"
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
ADC_HandleTypeDef hadc;
/* ADC init function */
void MX_ADC_Init(void)
{
/* USER CODE BEGIN ADC_Init 0 */
/* USER CODE END ADC_Init 0 */
ADC_ChannelConfTypeDef sConfig = {0};
/* USER CODE BEGIN ADC_Init 1 */
/* USER CODE END ADC_Init 1 */
/** Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)
*/
hadc.Instance = ADC1;
hadc.Init.OversamplingMode = DISABLE;
hadc.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV1;
hadc.Init.Resolution = ADC_RESOLUTION_12B;
hadc.Init.SamplingTime = ADC_SAMPLETIME_1CYCLE_5;
hadc.Init.ScanConvMode = ADC_SCAN_DIRECTION_FORWARD;
hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc.Init.ContinuousConvMode = DISABLE;
hadc.Init.DiscontinuousConvMode = DISABLE;
hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc.Init.DMAContinuousRequests = DISABLE;
hadc.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
hadc.Init.Overrun = ADC_OVR_DATA_PRESERVED;
hadc.Init.LowPowerAutoWait = DISABLE;
hadc.Init.LowPowerFrequencyMode = ENABLE;
hadc.Init.LowPowerAutoPowerOff = DISABLE;
if (HAL_ADC_Init(&hadc) != HAL_OK)
{
Error_Handler();
}
/** Configure for the selected ADC regular channel to be converted.
*/
sConfig.Channel = ADC_CHANNEL_0;
sConfig.Rank = ADC_RANK_CHANNEL_NUMBER;
if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN ADC_Init 2 */
/* USER CODE END ADC_Init 2 */
}
void HAL_ADC_MspInit(ADC_HandleTypeDef* adcHandle)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
if(adcHandle->Instance==ADC1)
{
/* USER CODE BEGIN ADC1_MspInit 0 */
/* USER CODE END ADC1_MspInit 0 */
/* ADC1 clock enable */
__HAL_RCC_ADC1_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
/**ADC GPIO Configuration
PA0-CK_IN ------> ADC_IN0
*/
GPIO_InitStruct.Pin = SENSOR_ANALOG_IN_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(SENSOR_ANALOG_IN_GPIO_Port, &GPIO_InitStruct);
/* USER CODE BEGIN ADC1_MspInit 1 */
/* USER CODE END ADC1_MspInit 1 */
}
}
void HAL_ADC_MspDeInit(ADC_HandleTypeDef* adcHandle)
{
if(adcHandle->Instance==ADC1)
{
/* USER CODE BEGIN ADC1_MspDeInit 0 */
/* USER CODE END ADC1_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_ADC1_CLK_DISABLE();
/**ADC GPIO Configuration
PA0-CK_IN ------> ADC_IN0
*/
/* USER CODE BEGIN ADC1_MspDeInit 1 */
/* USER CODE END ADC1_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
And here is the main file where I call the function to read the adc and send it to uart to be read :
#include "main.h"
#include "gpio.h"
#include "adc.h"
#include "usart.h"
#include <stdlib.h>
extern "C"
void execute(){
HAL_Delay(10);
HAL_ADC_Start(&hadc);
HAL_ADC_PollForConversion(&hadc, HAL_MAX_DELAY);
const auto value = HAL_ADC_GetValue(&hadc);
char buffer [5];
itoa(value, buffer, 10);
HAL_UART_Transmit(&huart2, reinterpret_cast<uint8_t*>(buffer), 5, HAL_MAX_DELAY);
}
Here is the schematic, as I said, the test circuit only had the mcu and some passive components : https://im.ge/i/FbQPIp

Cannot receive data on STM32F746 UDP socket via LwIP

I've been trying to get the LwIP stack to work on my STM32F746 Discovery board, but no luck so far when it comes to receiving data. Sending works just fine, but for some reason, I can't receive any packets. Wireshark confirms that the packets are sent, but the board seems to ignore them. My assumption is that some configuration in stm32f7xx_hal_conf.h has been done incorrectly, but I have very limited experience when it comes to this, so I haven't been able to figure it out.
Here's how I initialize my socket:
int sock = socket(AF_INET, SOCK_DGRAM, 0);
struct sockaddr_in address;
int addrlen = sizeof(address);
address.sin_len = addrlen;
address.sin_family = AF_INET;
address.sin_addr.s_addr = INADDR_ANY;
address.sin_port = htons(port);
bind(sock, (struct sockaddr*)&address, addrlen);
printf("Listening on socket %d\n", sock);
printf("Received %d bytes\n", recv(sock, buffer, 200, 0));
The second to last line gets printed, then the thread blocks indefinitely waiting for a packet. As I said, if I'm sending data instead of receiving it, everything works fine. I also tried the callback approach to listening, to no avail.
I took the network initalization procedures and config files straight from ST's LwIP example application.
This is my stm32f7xx_hal_conf.h, I have a feeling there might be some misconfiguration here, because if I mess with some of these values, sending over the sockets stops working too.
/**
******************************************************************************
* #file BSP/inc/stm32f7xx_hal_conf.h
* #author MCD Application Team
* #brief HAL configuration file.
******************************************************************************
* #attention
*
* <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
*
* 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.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F7xx_HAL_CONF_H
#define __STM32F7xx_HAL_CONF_H
#ifdef __cplusplus
extern "C" {
#endif
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* ########################## Module Selection ############################## */
/**
* #brief This is the list of modules to be used in the HAL driver
*/
#define HAL_MODULE_ENABLED
#define HAL_ADC_MODULE_ENABLED
/* #define HAL_CAN_MODULE_ENABLED */
/* #define HAL_CAN_LEGACY_MODULE_ENABLED */
#define HAL_CRC_MODULE_ENABLED
/* #define HAL_CRYP_MODULE_ENABLED */
/* #define HAL_DAC_MODULE_ENABLED */
#define HAL_DCMI_MODULE_ENABLED
#define HAL_DMA_MODULE_ENABLED
#define HAL_DMA2D_MODULE_ENABLED
#define HAL_ETH_MODULE_ENABLED
#define HAL_FLASH_MODULE_ENABLED
/* #define HAL_NAND_MODULE_ENABLED */
#define HAL_NOR_MODULE_ENABLED
/* #define HAL_PCCARD_MODULE_ENABLED */
#define HAL_SRAM_MODULE_ENABLED
#define HAL_SDRAM_MODULE_ENABLED
/* #define HAL_HASH_MODULE_ENABLED */
#define HAL_GPIO_MODULE_ENABLED
#define HAL_I2C_MODULE_ENABLED
#define HAL_I2S_MODULE_ENABLED
/* #define HAL_IWDG_MODULE_ENABLED */
#define HAL_LTDC_MODULE_ENABLED
#define HAL_PWR_MODULE_ENABLED
#define HAL_QSPI_MODULE_ENABLED
#define HAL_RCC_MODULE_ENABLED
/* #define HAL_RNG_MODULE_ENABLED */
#define HAL_RTC_MODULE_ENABLED
#define HAL_SAI_MODULE_ENABLED
#define HAL_SD_MODULE_ENABLED
/* #define HAL_SPDIFRX_MODULE_ENABLED */
/* #define HAL_SPI_MODULE_ENABLED */
#define HAL_TIM_MODULE_ENABLED
#define HAL_UART_MODULE_ENABLED
/* #define HAL_USART_MODULE_ENABLED */
/* #define HAL_IRDA_MODULE_ENABLED */
/* #define HAL_SMARTCARD_MODULE_ENABLED */
/* #define HAL_WWDG_MODULE_ENABLED */
#define HAL_CORTEX_MODULE_ENABLED
/* #define HAL_PCD_MODULE_ENABLED */
/* #define HAL_HCD_MODULE_ENABLED */
/* ########################## HSE/HSI Values adaptation ##################### */
/**
* #brief Adjust the value of External High Speed oscillator (HSE) used in your application.
* This value is used by the RCC HAL module to compute the system frequency
* (when HSE is used as system clock source, directly or through the PLL).
*/
#if !defined (HSE_VALUE)
#define HSE_VALUE ((uint32_t)25000000U) /*!< Value of the External oscillator in Hz */
#endif /* HSE_VALUE */
#if !defined (HSE_STARTUP_TIMEOUT)
#define HSE_STARTUP_TIMEOUT ((uint32_t)100U) /*!< Time out for HSE start up, in ms */
#endif /* HSE_STARTUP_TIMEOUT */
/**
* #brief Internal High Speed oscillator (HSI) value.
* This value is used by the RCC HAL module to compute the system frequency
* (when HSI is used as system clock source, directly or through the PLL).
*/
#if !defined (HSI_VALUE)
#define HSI_VALUE ((uint32_t)16000000U) /*!< Value of the Internal oscillator in Hz*/
#endif /* HSI_VALUE */
/**
* #brief Internal Low Speed oscillator (LSI) value.
*/
#if !defined (LSI_VALUE)
#define LSI_VALUE ((uint32_t)32000U) /*!< LSI Typical Value in Hz*/
#endif /* LSI_VALUE */ /*!< Value of the Internal Low Speed oscillator in Hz
The real value may vary depending on the variations
in voltage and temperature. */
/**
* #brief External Low Speed oscillator (LSE) value.
*/
#if !defined (LSE_VALUE)
#define LSE_VALUE ((uint32_t)32768U) /*!< Value of the External Low Speed oscillator in Hz */
#endif /* LSE_VALUE */
#if !defined (LSE_STARTUP_TIMEOUT)
#define LSE_STARTUP_TIMEOUT ((uint32_t)5000U) /*!< Time out for LSE start up, in ms */
#endif /* LSE_STARTUP_TIMEOUT */
/**
* #brief External clock source for I2S peripheral
* This value is used by the I2S HAL module to compute the I2S clock source
* frequency, this source is inserted directly through I2S_CKIN pad.
*/
#if !defined (EXTERNAL_CLOCK_VALUE)
#define EXTERNAL_CLOCK_VALUE ((uint32_t)12288000U) /*!< Value of the Internal oscillator in Hz*/
#endif /* EXTERNAL_CLOCK_VALUE */
/* Tip: To avoid modifying this file each time you need to use different HSE,
=== you can define the HSE value in your toolchain compiler preprocessor. */
/* ########################### System Configuration ######################### */
/**
* #brief This is the HAL system configuration section
*/
#define VDD_VALUE ((uint32_t)3300U) /*!< Value of VDD in mv */
#define TICK_INT_PRIORITY ((uint32_t)0x15U) /*!< tick interrupt priority */
#define USE_RTOS 0U
#define PREFETCH_ENABLE 1U
#define ART_ACCLERATOR_ENABLE 1U /* To enable instruction cache and prefetch */
/* ########################## Assert Selection ############################## */
/**
* #brief Uncomment the line below to expanse the "assert_param" macro in the
* HAL drivers code
*/
/* #define USE_FULL_ASSERT 1 */
/* ################## Ethernet peripheral configuration ##################### */
/* Section 1 : Ethernet peripheral configuration */
/* MAC ADDRESS: MAC_ADDR0:MAC_ADDR1:MAC_ADDR2:MAC_ADDR3:MAC_ADDR4:MAC_ADDR5 */
#define MAC_ADDR0 0x84
#define MAC_ADDR1 0x16
#define MAC_ADDR2 0x43
#define MAC_ADDR3 0xA6
#define MAC_ADDR4 0x3B
#define MAC_ADDR5 0x2A
/* Definition of the Ethernet driver buffers size and count */
#define ETH_RX_BUF_SIZE ETH_MAX_PACKET_SIZE /* buffer size for receive */
#define ETH_TX_BUF_SIZE ETH_MAX_PACKET_SIZE /* buffer size for transmit */
#define ETH_RXBUFNB ((uint32_t)4U) /* 4 Rx buffers of size ETH_RX_BUF_SIZE */
#define ETH_TXBUFNB ((uint32_t)4U) /* 4 Tx buffers of size ETH_TX_BUF_SIZE */
/* Section 2: PHY configuration section */
/* DP83848_PHY_ADDRESS Address*/
#define DP83848_PHY_ADDRESS 0
/* PHY Reset delay these values are based on a 1 ms Systick interrupt*/
#define PHY_RESET_DELAY ((uint32_t)0x000000FFU)
/* PHY Configuration delay */
#define PHY_CONFIG_DELAY ((uint32_t)0x00000FFFU)
#define PHY_READ_TO ((uint32_t)0x0000FFFFU)
#define PHY_WRITE_TO ((uint32_t)0x0000FFFFU)
/* Section 3: Common PHY Registers */
#define PHY_BCR ((uint16_t)0x00U) /*!< Transceiver Basic Control Register */
#define PHY_BSR ((uint16_t)0x01U) /*!< Transceiver Basic Status Register */
#define PHY_RESET ((uint16_t)0x8000U) /*!< PHY Reset */
#define PHY_LOOPBACK ((uint16_t)0x4000U) /*!< Select loop-back mode */
#define PHY_FULLDUPLEX_100M ((uint16_t)0x2100U) /*!< Set the full-duplex mode at 100 Mb/s */
#define PHY_HALFDUPLEX_100M ((uint16_t)0x2000U) /*!< Set the half-duplex mode at 100 Mb/s */
#define PHY_FULLDUPLEX_10M ((uint16_t)0x0100U) /*!< Set the full-duplex mode at 10 Mb/s */
#define PHY_HALFDUPLEX_10M ((uint16_t)0x0000U) /*!< Set the half-duplex mode at 10 Mb/s */
#define PHY_AUTONEGOTIATION ((uint16_t)0x1000U) /*!< Enable auto-negotiation function */
#define PHY_RESTART_AUTONEGOTIATION ((uint16_t)0x0200U) /*!< Restart auto-negotiation function */
#define PHY_POWERDOWN ((uint16_t)0x0800U) /*!< Select the power down mode */
#define PHY_ISOLATE ((uint16_t)0x0400U) /*!< Isolate PHY from MII */
#define PHY_AUTONEGO_COMPLETE ((uint16_t)0x0020U) /*!< Auto-Negotiation process completed */
#define PHY_LINKED_STATUS ((uint16_t)0x0004U) /*!< Valid link established */
#define PHY_JABBER_DETECTION ((uint16_t)0x0002U) /*!< Jabber condition detected */
/* Section 4: Extended PHY Registers */
#define PHY_SR ((uint16_t)0x10U) /*!< PHY status register Offset */
#define PHY_MICR ((uint16_t)0x11U) /*!< MII Interrupt Control Register */
#define PHY_MISR ((uint16_t)0x12U) /*!< MII Interrupt Status and Misc. Control Register */
#define PHY_LINK_STATUS ((uint16_t)0x0001U) /*!< PHY Link mask */
#define PHY_SPEED_STATUS ((uint16_t)0x0002U) /*!< PHY Speed mask */
#define PHY_DUPLEX_STATUS ((uint16_t)0x0004U) /*!< PHY Duplex mask */
#define PHY_MICR_INT_EN ((uint16_t)0x0002U) /*!< PHY Enable interrupts */
#define PHY_MICR_INT_OE ((uint16_t)0x0001U) /*!< PHY Enable output interrupt events */
#define PHY_MISR_LINK_INT_EN ((uint16_t)0x0020U) /*!< Enable Interrupt on change of link status */
#define PHY_LINK_INTERRUPT ((uint16_t)0x2000U) /*!< PHY link status interrupt mask */
/* ################## SPI peripheral configuration ########################## */
/* CRC FEATURE: Use to activate CRC feature inside HAL SPI Driver
* Activated: CRC code is present inside driver
* Deactivated: CRC code cleaned from driver
*/
#define USE_SPI_CRC 0U
/* Includes ------------------------------------------------------------------*/
/**
* #brief Include module's header file
*/
#ifdef HAL_RCC_MODULE_ENABLED
#include "stm32f7xx_hal_rcc.h"
#endif /* HAL_RCC_MODULE_ENABLED */
#ifdef HAL_GPIO_MODULE_ENABLED
#include "stm32f7xx_hal_gpio.h"
#endif /* HAL_GPIO_MODULE_ENABLED */
#ifdef HAL_DMA_MODULE_ENABLED
#include "stm32f7xx_hal_dma.h"
#endif /* HAL_DMA_MODULE_ENABLED */
#ifdef HAL_CORTEX_MODULE_ENABLED
#include "stm32f7xx_hal_cortex.h"
#endif /* HAL_CORTEX_MODULE_ENABLED */
#ifdef HAL_ADC_MODULE_ENABLED
#include "stm32f7xx_hal_adc.h"
#endif /* HAL_ADC_MODULE_ENABLED */
#ifdef HAL_CAN_MODULE_ENABLED
#include "stm32f7xx_hal_can.h"
#endif /* HAL_CAN_MODULE_ENABLED */
#ifdef HAL_CAN_LEGACY_MODULE_ENABLED
#include "stm32f7xx_hal_can_legacy.h"
#endif /* HAL_CAN_LEGACY_MODULE_ENABLED */
#ifdef HAL_CEC_MODULE_ENABLED
#include "stm32f7xx_hal_cec.h"
#endif /* HAL_CEC_MODULE_ENABLED */
#ifdef HAL_CRC_MODULE_ENABLED
#include "stm32f7xx_hal_crc.h"
#endif /* HAL_CRC_MODULE_ENABLED */
#ifdef HAL_CRYP_MODULE_ENABLED
#include "stm32f7xx_hal_cryp.h"
#endif /* HAL_CRYP_MODULE_ENABLED */
#ifdef HAL_DMA2D_MODULE_ENABLED
#include "stm32f7xx_hal_dma2d.h"
#endif /* HAL_DMA2D_MODULE_ENABLED */
#ifdef HAL_DAC_MODULE_ENABLED
#include "stm32f7xx_hal_dac.h"
#endif /* HAL_DAC_MODULE_ENABLED */
#ifdef HAL_DCMI_MODULE_ENABLED
#include "stm32f7xx_hal_dcmi.h"
#endif /* HAL_DCMI_MODULE_ENABLED */
#ifdef HAL_ETH_MODULE_ENABLED
#include "stm32f7xx_hal_eth.h"
#endif /* HAL_ETH_MODULE_ENABLED */
#ifdef HAL_FLASH_MODULE_ENABLED
#include "stm32f7xx_hal_flash.h"
#endif /* HAL_FLASH_MODULE_ENABLED */
#ifdef HAL_SRAM_MODULE_ENABLED
#include "stm32f7xx_hal_sram.h"
#endif /* HAL_SRAM_MODULE_ENABLED */
#ifdef HAL_NOR_MODULE_ENABLED
#include "stm32f7xx_hal_nor.h"
#endif /* HAL_NOR_MODULE_ENABLED */
#ifdef HAL_NAND_MODULE_ENABLED
#include "stm32f7xx_hal_nand.h"
#endif /* HAL_NAND_MODULE_ENABLED */
#ifdef HAL_SDRAM_MODULE_ENABLED
#include "stm32f7xx_hal_sdram.h"
#endif /* HAL_SDRAM_MODULE_ENABLED */
#ifdef HAL_HASH_MODULE_ENABLED
#include "stm32f7xx_hal_hash.h"
#endif /* HAL_HASH_MODULE_ENABLED */
#ifdef HAL_I2C_MODULE_ENABLED
#include "stm32f7xx_hal_i2c.h"
#endif /* HAL_I2C_MODULE_ENABLED */
#ifdef HAL_I2S_MODULE_ENABLED
#include "stm32f7xx_hal_i2s.h"
#endif /* HAL_I2S_MODULE_ENABLED */
#ifdef HAL_IWDG_MODULE_ENABLED
#include "stm32f7xx_hal_iwdg.h"
#endif /* HAL_IWDG_MODULE_ENABLED */
#ifdef HAL_LPTIM_MODULE_ENABLED
#include "stm32f7xx_hal_lptim.h"
#endif /* HAL_LPTIM_MODULE_ENABLED */
#ifdef HAL_LTDC_MODULE_ENABLED
#include "stm32f7xx_hal_ltdc.h"
#endif /* HAL_LTDC_MODULE_ENABLED */
#ifdef HAL_PWR_MODULE_ENABLED
#include "stm32f7xx_hal_pwr.h"
#endif /* HAL_PWR_MODULE_ENABLED */
#ifdef HAL_QSPI_MODULE_ENABLED
#include "stm32f7xx_hal_qspi.h"
#endif /* HAL_QSPI_MODULE_ENABLED */
#ifdef HAL_RNG_MODULE_ENABLED
#include "stm32f7xx_hal_rng.h"
#endif /* HAL_RNG_MODULE_ENABLED */
#ifdef HAL_RTC_MODULE_ENABLED
#include "stm32f7xx_hal_rtc.h"
#endif /* HAL_RTC_MODULE_ENABLED */
#ifdef HAL_SAI_MODULE_ENABLED
#include "stm32f7xx_hal_sai.h"
#endif /* HAL_SAI_MODULE_ENABLED */
#ifdef HAL_SD_MODULE_ENABLED
#include "stm32f7xx_hal_sd.h"
#endif /* HAL_SD_MODULE_ENABLED */
#ifdef HAL_SPDIFRX_MODULE_ENABLED
#include "stm32f7xx_hal_spdifrx.h"
#endif /* HAL_SPDIFRX_MODULE_ENABLED */
#ifdef HAL_SPI_MODULE_ENABLED
#include "stm32f7xx_hal_spi.h"
#endif /* HAL_SPI_MODULE_ENABLED */
#ifdef HAL_TIM_MODULE_ENABLED
#include "stm32f7xx_hal_tim.h"
#endif /* HAL_TIM_MODULE_ENABLED */
#ifdef HAL_UART_MODULE_ENABLED
#include "stm32f7xx_hal_uart.h"
#endif /* HAL_UART_MODULE_ENABLED */
#ifdef HAL_USART_MODULE_ENABLED
#include "stm32f7xx_hal_usart.h"
#endif /* HAL_USART_MODULE_ENABLED */
#ifdef HAL_IRDA_MODULE_ENABLED
#include "stm32f7xx_hal_irda.h"
#endif /* HAL_IRDA_MODULE_ENABLED */
#ifdef HAL_SMARTCARD_MODULE_ENABLED
#include "stm32f7xx_hal_smartcard.h"
#endif /* HAL_SMARTCARD_MODULE_ENABLED */
#ifdef HAL_WWDG_MODULE_ENABLED
#include "stm32f7xx_hal_wwdg.h"
#endif /* HAL_WWDG_MODULE_ENABLED */
#ifdef HAL_PCD_MODULE_ENABLED
#include "stm32f7xx_hal_pcd.h"
#endif /* HAL_PCD_MODULE_ENABLED */
#ifdef HAL_HCD_MODULE_ENABLED
#include "stm32f7xx_hal_hcd.h"
#endif /* HAL_HCD_MODULE_ENABLED */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* #brief The assert_param macro is used for function's parameters check.
* #param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* #retval None
*/
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0U)
#endif /* USE_FULL_ASSERT */
#ifdef __cplusplus
}
#endif
#endif /* __STM32F7xx_HAL_CONF_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
I would really appreciate your help, I've been stuck on this for days!

f_mount() returns FA_DISK_ERR

I have made few changes in my source code after suggestion form everyone.For connecting FATFS API with SPI interface i have followed this code..
https://github.com/eziya/STM32_SPI_SDCARD/blob/master/Src/fatfs_sd.c
and changed my user_diskio.c accordingly.
After doing all those things then also my SD Card returns FA_DISK_ERROR.
I have changed SD Card slot as well as SD Card. But nothing Changed.
My user_diskio.c look like this:
#include <string.h>
#include "ff_gen_drv.h"
#include "fatfs_sd.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Disk status */
static volatile DSTATUS Stat = STA_NOINIT;
/* USER CODE END DECL */
/* Private function prototypes -----------------------------------------------*/
DSTATUS USER_initialize (BYTE pdrv);
DSTATUS USER_status (BYTE pdrv);
DRESULT USER_read (BYTE pdrv, BYTE *buff, DWORD sector, UINT count);
#if _USE_WRITE == 1
DRESULT USER_write (BYTE pdrv, const BYTE *buff, DWORD sector, UINT count);
#endif /* _USE_WRITE == 1 */
#if _USE_IOCTL == 1
DRESULT USER_ioctl (BYTE pdrv, BYTE cmd, void *buff);
#endif /* _USE_IOCTL == 1 */
Diskio_drvTypeDef USER_Driver =
{
USER_initialize,
USER_status,
USER_read,
#if _USE_WRITE
USER_write,
#endif /* _USE_WRITE == 1 */
#if _USE_IOCTL == 1
USER_ioctl,
#endif /* _USE_IOCTL == 1 */
};
/* Private functions ---------------------------------------------------------*/
/**
* #brief Initializes a Drive
* #param pdrv: Physical drive number (0..)
* #retval DSTATUS: Operation status
*/
DSTATUS USER_initialize (
BYTE pdrv /* Physical drive nmuber to identify the drive */
)
{
/* USER CODE BEGIN INIT */
return SD_disk_initialize(pdrv);
/* USER CODE END INIT */
}
/**
* #brief Gets Disk Status
* #param pdrv: Physical drive number (0..)
* #retval DSTATUS: Operation status
*/
DSTATUS USER_status (
BYTE pdrv /* Physical drive number to identify the drive */
)
{
/* USER CODE BEGIN STATUS */
return SD_disk_status(pdrv);
/* USER CODE END STATUS */
}
/**
* #brief Reads Sector(s)
* #param pdrv: Physical drive number (0..)
* #param *buff: Data buffer to store read data
* #param sector: Sector address (LBA)
* #param count: Number of sectors to read (1..128)
* #retval DRESULT: Operation result
*/
DRESULT USER_read (
BYTE pdrv, /* Physical drive nmuber to identify the drive */
BYTE *buff, /* Data buffer to store read data */
DWORD sector, /* Sector address in LBA */
UINT count /* Number of sectors to read */
)
{
/* USER CODE BEGIN READ */
return SD_disk_read(pdrv, buff, sector, count);
/* USER CODE END READ */
}
/**
* #brief Writes Sector(s)
* #param pdrv: Physical drive number (0..)
* #param *buff: Data to be written
* #param sector: Sector address (LBA)
* #param count: Number of sectors to write (1..128)
* #retval DRESULT: Operation result
*/
#if _USE_WRITE == 1
DRESULT USER_write (
BYTE pdrv, /* Physical drive nmuber to identify the drive */
const BYTE *buff, /* Data to be written */
DWORD sector, /* Sector address in LBA */
UINT count /* Number of sectors to write */
)
{
/* USER CODE BEGIN WRITE */
/* USER CODE HERE */
return SD_disk_write(pdrv, buff, sector, count);
/* USER CODE END WRITE */
}
#endif /* _USE_WRITE == 1 */
/**
* #brief I/O control operation
* #param pdrv: Physical drive number (0..)
* #param cmd: Control code
* #param *buff: Buffer to send/receive control data
* #retval DRESULT: Operation result
*/
#if _USE_IOCTL == 1
DRESULT USER_ioctl (
BYTE pdrv, /* Physical drive nmuber (0..) */
BYTE cmd, /* Control code */
void *buff /* Buffer to send/receive control data */
)
{
/* USER CODE BEGIN IOCTL */
return SD_disk_ioctl(pdrv, cmd, buff);
/* USER CODE END IOCTL */
}
#endif /* _USE_IOCTL == 1 */
and fatfs_sd.c looks like this:
GO TO THE ABOVE GITHUB LINK
Have no idea where i am going wrong.
Anything on this topic will be helpful.
Thanks in advance.
I've written my own driver using an stm32f7 chip for FatFS before and think I might know what's going on. My guess is that you likely forgot to attach implementations for the disk_write and disk_read functions in diskio.h. Without doing that, the FatFS library has no clue on how to actually interface with the SD card.
You could check out the FatFS documentation/manual as a general resource: here
Pay very close attention to the "Required Functions" section in this app note: here
An example project like yours but for STM32F4: here

USART with STM32F373VCt6

I'm new here. I've just started learning STM32F373 with STM32F373VCT6. I use CMSIS to configure UART1. that seems there are no any error with my code. But when I use PL2303 to convert serial-usb for connecting with PC. I don't receive anything.
Here is my code. Can anyone help me to find your mistake?
/* Includes ------------------------------------------------------------------*/
#include "stm32f37x.h"
#include"main.h"
uint8_t ledVal = 0;
static __IO uint32_t TimingDelay;
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define BSRR_VAL 0x0003
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
GPIO_InitTypeDef GPIO_InitStructure;
/* Private function prototypes -----------------------------------------------*/
uint8_t SendChar (uint8_t ch);
void GPIO_Config(void);
void USART1_Config(void);
uint8_t GetChar (void);
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f37x.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f37x.c file
*/
//SystemInit();
/* GPIOC Periph clock enable */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);
/* Configure PC0 and PC1 in output pushpull mode */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_Config();
USART1_Config();
if (SysTick_Config(SystemCoreClock / 1000))
while (1);
while (1)
{
/* Set PC0 and PC1 */
GPIO_WriteBit(GPIOC , GPIO_Pin_13 , (ledVal) ? Bit_SET : Bit_RESET);
ledVal = 1 - ledVal;
SendChar('f');
Delay(250);
}
}
#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 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) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* #}
*/
/**
* #}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
void GPIO_Config(void) {
// PC4 configuration (TX)
RCC->AHBENR |= 1 << 19; // enable GPIOC clock
GPIOC->MODER |= 2 << (4*2); // GPIO_Mode_AF
GPIOC->OTYPER |= 1 << (4*1); // GPIO_OType_OD
GPIOC->OSPEEDR |= 3 << (4*2); // GPIO_Speed_50MHz
GPIOC->PUPDR &= ~(3 << (4*2)); // GPIO_PuPd_NOPULL
GPIOC->AFR[0] |= 7 << (4*4); // AF7
// PC5 configuration (RX)
GPIOC->MODER |= 2 << (5*2); // GPIO_Mode_AF
GPIOC->AFR[0] |= 7 << (5*4); // AF7
}
/* Configuring USART1 */
void USART1_Config(void)
{
RCC->APB2ENR |= RCC_APB2ENR_USART1EN|RCC_APB2ENR_SYSCFGEN; // Enable USART1 clock
USART1->BRR = 72000000/115200;
USART1->CR1 &= ~USART_CR1_OVER8; // Oversampling mode = 16
USART1->CR1 &= ~USART_CR1_M; // Word length = 8 bits
USART1->CR2 &= ~(USART_CR2_STOP_1 | USART_CR2_STOP_0); // one stop bit
USART1->CR1 &= ~USART_CR1_PCE; // No parity
USART1->CR1 |= USART_CR1_UE; // USART enable
USART1->CR1 |= USART_CR1_RE; // Receiver enable
USART1->CR1 |= USART_CR1_TE; // Transmitter enable
}
uint8_t SendChar (uint8_t ch)
{
while (!(USART1->ISR & USART_ISR_TXE));
USART1->TDR = (ch & 0xFF);
return (ch);
}
uint8_t GetChar (void)
{
while (!(USART1->ISR & USART_ISR_RXNE));
return ((uint8_t)(USART1->RDR & 0xFF));
}
/* Delay fuction */
void Delay(__IO uint32_t nTime)
{
TimingDelay = nTime;
while(TimingDelay != 0);
}
/* Decrement */
void TimingDelay_Decrement(void)
{
if (TimingDelay != 0x00)
TimingDelay --;
}
Delays after RCC operations are missing
The errata for STM32F373 series says,
2.1.2 Delay after an RCC peripheral clock enabling
Description
A delay between an RCC peripheral clock enable and the effective peripheral enabling
should be taken into account in order to manage the peripheral read/write from/to registers.
This delay depends on the peripheral mapping.
If peripheral is mapped on AHB: the delay is 2 AHB clock cycles after the clock enable bit is
set on the hardware register.
If peripheral is mapped on APB: the delay is 2 APB clock cycles after the clock enable bit is set on the hardware register.
Workarounds
Enable the peripheral clock sometimes before the peripheral read/write register is required.
For AHB peripheral, insert two dummy read to the peripheral register.
For APB peripheral, insert a dummy read to the peripheral register.
Without this delay, a read (or two) immediately following the RCC enable operation could return 0 regardless of the register value, or the first two writes could be ignored by the peripheral.
The library function RCC_AHBPeriphClockCmd() may already include this delay, but check the Stdperiph sources to be sure.
I usually group RCC accesses at the start if possible, starting with the peripheral I'm going to use first.
RCC->AHBENR |= 1 << 19; // enable GPIOC clock // (1)
RCC->APB2ENR |= RCC_APB2ENR_USART1EN|RCC_APB2ENR_SYSCFGEN; // (2)
GPIOC->MODER = whatever; // (3)
// ...
USART1->BRR = divisor;
This way, the read-modify-write operation in (2) would introduce a sufficient delay between enabling GPIOC (1) and using it (3).

Undeclared identifiers (C-mex S-Functions)

I understand that this is a very common problem that a lot is facing. however I don't understand how to link to my program. It's a simple c = a+b program. I have the following as my C-Mex S-function:
#define S_FUNCTION_NAME Addition
#define S_FUNCTION_LEVEL 2
#include "simstruc.h"
static void mdlInitializeSizes(SimStruct *S)
{
int_T nInputPorts = 2; /* Set no. of input ports */
int_T nOutputPorts = 1; /* Set no. of output ports */
int_T needsInput = 1; /* Direct feed through = yes */
int_T inputPortIdx = 0;
int_T outputPortIdx = 0;
ssSetNumSFcnParams(S, 0);
if (ssGetNumSFcnParams(S) != ssGetSFcnParamsCount(S))
{
return; /* If no. of expected input parameters is not equal to no.
of parameters entered in dialog box, return. Simulink
to generate an error indicating parameter mismatched */
}
/* Configure input ports */
if (!ssSetNumInputPorts(S, 2)) return;
/* Configure first input ports */
ssSetInputPortWidth(S, 0, DYNAMICALLY_SIZED); /* Set dimensions of first input port */
ssSetInputPortDirectFeedThrough(S, 0, 1); /* Set direct feed through */
/* Configure second input ports */
ssSetInputPortWidth(S, 1, DYNAMICALLY_SIZED); /* Set dimensions of second input port */
ssSetInputPortDirectFeedThrough(S, 1, 1); /* Set direct feed through */
/* Configure output ports */
if (!ssSetNumOutputPorts(S,1)) return;
ssSetOutputPortWidth(S, 0, DYNAMICALLY_SIZED); /* Set dimensions of output ports */
ssSetNumSampleTimes(S, 1); /* Set no. of sample times */
ssSetSimStateCompliance(S, USE_DEFAULT_SIM_STATE);
ssSetOptions (S,0);
} /* End of mdlInitializeSizes */
static void mdlInitializeSampleTimes (SimStruc *S)
{
ssSetSampleTimes(S, 0, INHERITED_SAMPLE_TIME);
/* Inherited Sample time: S-function block executes whenever driving block executes */
ssSetOffsetTime(S, 0, 0.0); /* No offset required */
ssSetModelReferenceSampleTimeDefaultInheritance(S); /* */
} /* End of mdlInitializeSampleTime */
static void mdlOutputs (SimStruc *S, int_T tid)
{
int_T i;
InputRealPtrsType uPtrs = ssGetInputPortRealSignalPtrs(S,0);
real_T *y = ssGetOutputPortRealSignal(S,0);
int_T width = ssGetOutputPortWidth(S,0);
for (i=0; i<width; i++) /* i = location of memory. from 0 to 1. */
{
*y++ = (*uPtrs[i+1]) + (*uPtrs[i]); /* c = a + b */
}
} /* End of mdlOutputs */
static void mdlTerminate(SimStruct *S)
{
/* No task to be perform at end of simulation therefore no termination required.
But this is a compulsory function to have for C-mex S-function */
} /* End of mdlTerminate */
#ifdef MATLAB_MEX_FILE
#include "simulink.c"
#else
#include "cg_sfun.h"
#endif
however when compiling on matlab, i keep getting the following error:
Addition.c:47: error: expected ‘)’ before ‘*’ token
Addition.c:56: error: expected ‘)’ before ‘*’ token
In file included from Addition.c:82:
/DIST/it/sw/amd64/matlab/r2010b/simulink/include/simulink.c: In function ‘_ProcessMexSfunctionCmdLineCall’:
/DIST/it/sw/amd64/matlab/r2010b/simulink/include/simulink.c:2545: error: ‘mdlInitializeSampleTimes’ undeclared (first use in this function)
/DIST/it/sw/amd64/matlab/r2010b/simulink/include/simulink.c:2545: error: (Each undeclared identifier is reported only once
/DIST/it/sw/amd64/matlab/r2010b/simulink/include/simulink.c:2545: error: for each function it appears in.)
/DIST/it/sw/amd64/matlab/r2010b/simulink/include/simulink.c:2601: error: ‘mdlOutputs’ undeclared (first use in this function)
Any comments will be greatly appreciated!
You misspelled SimStruct in the two lines mentioned at the top of your error message. That error about the parentheses means that the compiler doesn't know that SimStruc is a type, so the * doesn't fit. After that, those two functions aren't defined, so the simulink interface gets upset that it can't find those two required functions in your file.