STM32H743ZI NUCLEO 144 & LWIP - Can't Ping The Board

[CodesMagic]

Hope all is going well. I'm trying to ping STM32H743ZI NUCLEO 144 using LWIP middle-ware. Code generated by CubeMX.

• Configurations:

1. Set the HCLK to 400 MHz
2. Enabled the CPU ICache and DCache (under Cortex_M7 Configuration)
3. Enabled MPU (Region0, Region1 & Region2)
4. Enabled LWIP
5. Selected LAN8742 as the Driver_PHY (under LwIP>Platform Settings)
6. DHCP disabled (IP, MASK: 255,255,255,000 , Gateway: Modem IP)
7. RTOS disabled
8. LWIP_HTTPD (LWIP_HTTPD_CGI & LWIP_HTTPD_SSI enabled)
9. LWIP_HTTPD_MAX_TAG_NAME_LEN set to 16
10. ICMP enabled (LWIP_BROADCAST_PING and LWIP_MULTICAST_PING in LwIP Key Options>IPMP Options).
11. Code Generated for Keil V5
12. MX_LWIP_Process added to the main function in While loop.

while(1)
{
MX_LWIP_Process();
}

I don't know how should I configure the CubeMX or change the generated code to be able to ping my board.

[CodesMagic]

I'm trying for two months and still not able to ping my board.

... Any supports for STM32H743ZI Nucleo 144 board?

[Hiren]

same face this problem in my stm32h743zi neculo board. if have any code for Ethernet UDP example please share us

[kurta999]

I was able to successfully awake LwIP on H747ZI and on F4 (on F4, CubeMX generated code worked), but not the one which is in CubeMX. A freshly generated project immendiately throws an ethernet DMA error on H7.

Finally I found an example in CubeMX package, located in: STM32Cube\Repository\STM32Cube_FW_H7_V1.4.0\Projects\NUCLEO-H743ZI\Applications\LwIP\LwIP_HTTP_Server_Netconn_RTOS and it works. Compiled with Atollic true studio (open SW4STM32\STM32H743ZI_Nucleo) and it will compile.

Try to use this example as starting point.

A very simple UDP echo example is here:

struct netbuf *buf;
static void udp_thread(void *arg)
{
	struct netconn *conn;
	err_t err;
	char buffer[256];
 
	/* Create a new TCP connection handle */
	conn = netconn_new(NETCONN_UDP);
	netconn_bind(conn, IP_ADDR_ANY, 1234);
	while (1)
	{
		err = netconn_recv(conn, &buf);
		if (err == ERR_OK)
		{
		 /* no need netconn_connect here, since the netbuf contains the address */
		 netbuf_copy(buf, buffer, sizeof(buffer));
		 err = netconn_send(conn, buf);
		 netbuf_delete(buf);
		}
	}
}
 
sys_thread_new("UDP2TH", udp_thread, NULL, 2048, 4);

[Hiren]

Thanks for reply.

i not use RTOS. i seen stl32h743Zi example but it code is rtos based and also no any found code on UDP based 

i also generated using Mx cube but it does not work.

1. i faces some warning "The ETH can work only when RAM is 

  pointing at 0x24000000"

  I was searching but did not find how to solve that.

2. I wrote code for ping command reply but it is not worked

GPIO pin mapping

PA1 ETH_REF_CLK

PA2 ETH_MDIO

PA7 ETH_CRS_DV

PB13 ETH_TXD1

PC1 ETH_MDC n/a

PC4 ETH_RXD0

PC5 ETH_RXD1

PG11 ETH_TX_EN

PG13 ETH_TXD0

Enable 

ICMP option

code

 while (1)

 {

  /* USER CODE END WHILE */

 MX_LWIP_Process();

  /* USER CODE BEGIN 3 */

 }

so i required UDP based example on STM32h743zi series.

if have you so please provide us 

Reguard's

Hiren

[Hiren]

Thanks for reply.

i not use RTOS. i seen stl32h743Zi example but it code is rtos based and also no any found code on UDP based 

i also generated using Mx cube but it does not work.

1. i faces some warning "The ETH can work only when RAM is 

  pointing at 0x24000000"

  I was searching but did not find how to solve that.

2. I wrote code for ping command reply but it is not worked

GPIO pin mapping

PA1 ETH_REF_CLK

PA2 ETH_MDIO

PA7 ETH_CRS_DV

PB13 ETH_TXD1

PC1 ETH_MDC n/a

PC4 ETH_RXD0

PC5 ETH_RXD1

PG11 ETH_TX_EN

PG13 ETH_TXD0

Enable 

ICMP option

code

 while (1)

 {

  /* USER CODE END WHILE */

 MX_LWIP_Process();

  /* USER CODE BEGIN 3 */

 }

so i required UDP based example on STM32h743zi series.

if have you so please provide us 

Reguard's

Hiren

[kurta999]

Why you don't using RTOS? It much easyer to do with RTOS.

As I said above look after example which I linked, there complete lwip stack works. If one one CubeMX is broken then drop cube and use that example as starting point.

[alister]

Also see https://community.st.com/s/question/0D50X0000C6eNNSSQ2/bug-fixes-stm32h7-ethernet. If you use the code there, please post there it's working for you or any questions.

[Piranha]

> It much easyer to do with RTOS.

Oh, really? That's why ST's brainless code monkeys still haven't understood multi-threading since the year 2007, right? :) Actually, if one has a decent cooperative scheduler and software timers, then implementing lwIP for simple projects is easier without RTOS. But, if the project is complex or has real-time requirements, then it's "easier" to do it with RTOS.