What happens when the text segment exceeds 64k on a nRF51 DK?

RE: What happens when the text segment exceeds 64k on a nRF51 DK?

Elm — Mon, 23 Nov 2015 15:11:39 GMT

I found the error, see: devzone.nordicsemi.com/.../

RE: What happens when the text segment exceeds 64k on a nRF51 DK?

Elm — Sat, 21 Nov 2015 08:36:50 GMT

I am well aware of 8 bit processors; I grew up programming an IMSAI 8080 (!). And I am aware that the ARM has larger address space. But I am sufficiently unfamiliar with it to be afraid that there is something (e.g. 16 bit JUMPs) that can cause problems. (I once tried programming an 8088, it was horrible.)

regards, Elm

RE: What happens when the text segment exceeds 64k on a nRF51 DK?

awneil — Fri, 20 Nov 2015 15:33:09 GMT

Don't be silly - it's obviously going to be an 8052...

;-)

RE: What happens when the text segment exceeds 64k on a nRF51 DK?

RK — Fri, 20 Nov 2015 15:24:30 GMT

Damn .. don't tell me the nRF52 is a 6502 then ...

RE: What happens when the text segment exceeds 64k on a nRF51 DK?

awneil — Fri, 20 Nov 2015 15:22:03 GMT

I guess (s)he's thinking that the nRF51 is an 8051 ... ?

(or some other 8-bit processor - where 64K is a Big Deal).

RE: What happens when the text segment exceeds 64k on a nRF51 DK?

RK — Fri, 20 Nov 2015 15:15:27 GMT

No. As long as your code fits into available flash (and the linker would tell you if it didn't) 64kB has no meaning at all. Some of the ARM standard (ie not long-call) calls can't go over 4Mb, but that's not going to be a problem for the nrf51, nrf52 or quite a few versions more.

What problem were you expecting with 64kB of text?