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Hi all, I have a small problem with my W5500 chip. I had successfully written code for it before, and have reused the same logic parts for this. However, nothing works. And i am a bit stuck as to why. Below is my code, one thing that i noticed is that my RST pin seems to be high all the time. Even after the reset. This might mess with things? Please let me know your thoughts. /* 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 "w5500_spi.h" #include "wizchip_conf.h" /* Private includes ----------------------------------------------------------*/ /* USER CODE BEGIN Includes */ /* USER CODE END Includes */ /* Private typedef -----------------------------------------------------------*/ /* USER CODE BEGIN PTD */ /* USER CODE END PTD */ /* Private define ------------------------------------------------------------*/ /* USER CODE BEGIN PD */ /* USER CODE END PD */ /* Private macro -------------------------------------------------------------*/ /* USER CODE BEGIN PM */ /* USER CODE END PM */ /* Private variables ---------------------------------------------------------*/ SPI_HandleTypeDef hspi1; /* USER CODE BEGIN PV */ wiz_NetInfo gWIZNETINFO = { .mac = {0x00, 0x08, 0xdc, 0xab, 0xcd, 0xef}, .ip = {192,168,1,10}, .sn = {255, 255, 255, 0}, .gw = {10, 1, 64, 1}, .dns = {8, 8, 8, 8}, .dhcp = NETINFO_DHCP}; wiz_NetInfo gWIZNETINFO2 = { .mac = {0x00, 0x08, 0xdc, 0xab, 0xcd, 0xef}, .ip = {10, 1, 64, 11}, .sn = {255, 255, 255, 0}, .gw = {10, 1, 64, 1}, .dns = {8, 8, 8, 8}, .dhcp = NETINFO_STATIC}; /* USER CODE END PV */ /* Private function prototypes -----------------------------------------------*/ void SystemClock_Config(void); static void MX_GPIO_Init(void); static void MX_SPI1_Init(void); /* USER CODE BEGIN PFP */ void cs_sel() { HAL_GPIO_WritePin(GPIOA, cs_Pin, GPIO_PIN_RESET); //CS LOW } void cs_desel() { HAL_GPIO_WritePin(GPIOA, cs_Pin, GPIO_PIN_SET); //CS HIGH } uint8_t spi_rb(void) { uint8_t rbuf; HAL_SPI_Receive(&hspi1, &rbuf, 1, 0xFFFFFFFF); return rbuf; } void spi_wb(uint8_t b) { HAL_SPI_Transmit(&hspi1, &b, 1, 0xFFFFFFFF); } /* 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) {…

Eugeny · Answer

Thomas1: This might mess with things? You’d better reset chip using reset pin properly as advised in the datasheet. Thomas1: nothing works. This does not help, you must give details what and how exactly it does not work, and how you believe it must work. If you reused the code and it was working within previous hardware, then logically, as you guess, something has changed in the hardware - try comparing the circuit diagrams.