Hi dd,
First I want to thank you for your contribution in efficient bare metal
programming. I am programming the beaglebone black in bearmetal as well at
the moment and I use Starterware 02.00.01.01 as a basis. I tried executing
the enetEcho example but I always run into an issue on initialization. I
didn't change anything and run the project with DHCP enabled. In function
"cpswif_phylink_config" of "cpswif.c" from the LWIP Stack the issue occurs
(No PHY found at address 0 for Port 0. MDIOSLAVE register value is "4". Do
you have any hints? Is perhaps my gel file already enabling the PHY?
Problem is I found no way of disabling the GEL Files in Code Composer
Studio. When I remove or comment the files, the IDE ignores that.
Code Snippet:
static err_t
cpswif_phylink_config(struct cpswportif * cpswif, u32_t slv_port_num) {
struct cpswinst *cpswinst = &cpsw_inst_data[cpswif->inst_num];
err_t err;
/* Check if ethernet PHY is present or not */
if(0 == (MDIOPhyAliveStatusGet(cpswinst->mdio_base)
& (1 << cpswinst->port[slv_port_num - 1].phy_addr))){
LWIP_PRINTF("\n\rNo PHY found at address %d for Port %d of Instance
%d.",
cpswinst->port[slv_port_num - 1].phy_addr, slv_port_num,
cpswif->inst_num);
return ERR_CONN;
}
With kind regards,
DS
-----------------------------------------------------------------------------------------------------------
On Tuesday, February 6, 2018 at 10:44:51 AM UTC+1, dd wrote:
>
> Hi all. I sort-of finished the Ethernet driver port from Starterware.
> It employs the full FAT32 filesystem by Elm-Chan and lwIP by Adam Dunkels.
> The all the code, makefile stuff, bootloader etc... required to build an
> image with interrupts, MMC, TCP, UDP, DMA, Cache, MMU, IRQ, RTC, httpserver
> and other peripherals. Now you can use the BeagleBone to control IoT
> projects, your own tight server or whatever. Written under GNU/GCC, for
> the serious noob. Sink your teeth into ARM Bare Metal, FAT32 and Internet
> Protocol here. The Bone' is very fast and economical when running without
> the burden of an insecure Operating System............dd
>
> PS it runs but it needs more streamlining, and I need more help!
> www.github.com/ddlawrence www.baremetal.tech
>
> I am an old engineer/programmer that is very tired of running on
> dumbed-down blackbox and otherwise limiting operating systems. Linux is
> not the answer. It should be, but it is too big/complicated. It really has
> not improved in 15 years. It is much more intricate than the ARM hardware
> it is running on. Linus refuses to migrate to microKernel. So do not get
> old and obsolete like me, watching corporations fuddle with fickle tools,
> capitalizing Net Neutrality and restricting your freedom as a programmer.
> Learn the basics and build upward, on software that YOU know and own. The
> 'Bone has unchallenged speed and I/O. This is a worthwhile platform to
> invest your effort. The attached zipfile will give you a big head start.
>
--
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