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fix: spi dma

Squashed commit of the following:

commit f0df85e2d18ff36b04443ddb23e645cbbd5bfa58
Author: kuwoyuki <kuwoyuki@cock.li>
Date:   Wed Oct 16 01:36:26 2024 +0600

    fix: SPI DMA

    wait for SPI TXE and BSY flags, also fix korean lib

commit a16b9f769807a78803ba1d7cd10a4a4843827bb2
Author: kuwoyuki <kuwoyuki@cock.li>
Date:   Tue Oct 15 21:09:59 2024 +0600

    moar log

commit 0c457e17ffb956cb5fbbc40865e62f8acf8f2eea
Author: kuwoyuki <kuwoyuki@cock.li>
Date:   Tue Oct 15 14:09:31 2024 +0600

    _

commit a0b6820bc1312e429d04bf0bb39bc2a8b234cfc5
Author: kuwoyuki <kuwoyuki@cock.li>
Date:   Tue Oct 15 13:55:24 2024 +0600

    rewrite w/o interrupts

commit 83c2ab75b326be098bc15698d77ab650b14613e0
Author: kuwoyuki <kuwoyuki@cock.li>
Date:   Tue Oct 15 13:01:41 2024 +0600

    dma config

commit d871fef77d7c1838ac84f02a499f5555f78bc9ce
Author: kuwoyuki <kuwoyuki@cock.li>
Date:   Tue Oct 15 04:47:23 2024 +0600

    more dma

2024-10-16 01:37:31 +06:00

.vscode

2024-10-14 13:45:28 +06:00

include

i broke it

2024-10-14 02:13:05 +06:00

lib

fix: spi dma

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notes

fix: spi dma

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src

fix: spi dma

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test

first commit

2024-10-10 00:45:09 +06:00

.gitignore

aaaaaaaaaaaaaaaa

2024-10-15 00:16:50 +06:00

lmao.sh

first commit

2024-10-10 00:45:09 +06:00

mosquitto.conf

dhcp attempts

2024-10-13 05:32:44 +06:00

platformio.ini

question mark

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README.md

fix: spi dma

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README.md

ch32-node fw

fw for a ch32v203 node w/ w5500 ethernet

current

SysTick IRQ and DMA issue

Enabling the SysTick IRQ leads to a permanent hang of the socket.

With a 1ms IRQ interval, the hang occurs at DHCP_ACK during the check_DHCP_leasedIP -> sendto() ARP request.
With a 100ms interval, the hang occurs during the DNS request.
With a 1s interval it works
Disabling SPI DMA solves it (just commenting out reg_wizchip_spiburst_cbfunc), so it's most likely DMA related?
SPI DMA only works with prescalers 8 and 64?
Also, for some reason it needs a ~50ms delay before configuring w5500 when compiled with -O0, not needed with -Os...

Diff between SPI w/ and w/o DMA:

SPI DMA

SPI

00 09 04 C0 A8 66 01 02 00 09 04 C0 A8 66 01 02 02

previous (DNS Processing)

solved by patching the korean bloatlib (dns_makequery in DNS.c)

w/ ch32v003fun

Partial DNS message: 11 23 81 82 00 01 00 00 00 00 00 00 03 68 79 65 00 00 00 02 73 DNS_run() failed, res = 0

w/ WCH HAL (none-os).. I get a full response

Receive DNS message from 192.168.102.1(53). len = 56 Partial DNS message: 11 23 81 80 00 01 00 02 00 00 00 00 03 68 79 65 02 73 75 00 00 01 00 01 C0 0C 00 01 00 01 00 00 01 2C 00 04 68 15 33 7F C0 0C 00 01 00 01 00 00 01 2C 00 04 AC 43 B4 9A Result: 172.67.180.154

RCC_CTLR, GPIO Registers, SPIx_CTLR1 registers are identical

LA

ch32v003fun

00 00 34 11 27 01 00 00 01 00 00 00 00 00 00 03 68 79 65 00 00 00 02 73 75 00 00 00 00 01 00 01

32 bytes long
(Post 68 79 65): 00 00 00 02 73 75 00 00 00 00 01 00 01

none-os

00 00 34 11 27 01 00 00 01 00 00 00 00 00 00 03 68 79 65 02 73 75 00 00 01 00 01

27 bytes long
(Post 68 79 65): 02 73 75 00 00 01 00 01