TM4C1294NCPDT: failed to assign static ip address in lwipInit?

David Chance

Part Number: TM4C1294NCPDT

1) Starting with TiVaware 2.14->Example->boards->ek-tm4c1294xl->enet_lwip, it uses DHCP option, and it works fine

2) Based on //e2e.ti.com/support/microcontrollers/tiva_arm/f/908/t/396803

3) lwIPInit(g_ui32SysClock, pui8MACArray, 0, 0, 0, IPADDR_USE_DHCP) is replaced with

struct ip_addr ipaddr, netmask, gw;
IP4_ADDR(&gw, 192,168,0,1);
IP4_ADDR(&ipaddr, 192,168,0,222);
IP4_ADDR(&netmask, 255,255,255,0);

lwIPInit(g_ui32SysClock, pui8MACArray, ipaddr.addr, netmask.addr , gw.addr , IPADDR_USE_STATIC); //192.168.0.222

The project compiles fine, but will not acquire the IP, did I miss something?

over 7 years ago

0 Genatco over 7 years ago

Guru 55913 points

Hi David,

Perhaps try &gw, &ipaddr, &netmask .

0 Bob Crosby over 7 years ago

TI__Guru 72500 points

Here is another thread that discusses using static ipaddr.
e2e.ti.com/.../1225476

0 David Chance over 7 years ago in reply to Bob Crosby

Genius 4775 points

I knew this approach, but it doesn't help this common situation: I want to have both DHCP and static IP options in the code, and pick one up based on user configuration, for example, if 0.0.0.0 is in EEPROM, I will use DHCP, otherwise, I will use static IP

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TM4C1294NCPDT: failed to assign static ip address in lwipInit?