文档编号 // 239136 在线

TinyMaix 在 XR806 上移植适配

2022-09-19

更新: 2026-04-25

27987 字符

#ALLWINNER #FREERTOS #ARM-CORTEX M33

这篇文章写于 2022，已经超过 4 年了。内容可能已经过时。

基础库移植

首先移植一下基础结构，按照SDK的结构编辑修改。把头文件放置于include/tinymaix 文件夹里

源文件放置于 src/tinymaix 文件夹里

编辑 Makefile 增加引索

#
# Rules for building library
#

# ----------------------------------------------------------------------------
# common rules
# ----------------------------------------------------------------------------
ROOT_PATH := ../..

include $(ROOT_PATH)/gcc.mk

# ----------------------------------------------------------------------------
# library and objects
# ----------------------------------------------------------------------------
LIBS := libtinymaix.a

DIRS := .

SRCS := $(sort $(basename $(foreach dir,$(DIRS),$(wildcard $(dir)/*.[csS]))))

OBJS := $(addsuffix .o,$(SRCS))

CC_FLAGS += -Wno-unused-variable -Wno-error=unused-but-set-variable -Wno-error=multichar -Wno-unused-but-set-variable -Wno-multichar

# library make rules
include $(LIB_MAKE_RULES)

在 project/Kconfig 里增加 Kconfig 引索

# Sipeed lib TinyMaix
config TINYMAIX
	bool "TinyMaix is a tiny inference library for microcontrollers (TinyML)."
	default n
	help
		set y to build library tinymaix.

同样吧project/project.mk加入引索

mnist demo 移植

先复制一份hello_world，重命名为 tinymaix_mnist

在 defconfig 里加入使用的包

运行错误，`exception:6 happen!!`

烧录板子上运行之后发现不能正常使用，报错如下：

use default flash chip mJedec 0x0
[FD I]: mode: 0x10, freq: 96000000Hz, drv: 0
[FD I]: jedec: 0x0, suspend_support: 1
mode select:e

platform information ===============================================
XR806 SDK v1.2.1  Sep 19 2022 20:46:25 62800400

heap space [0x209818, 0x24bc00), size 271336

cpu  clock 160000000 Hz
HF   clock  40000000 Hz

sdk option:
    XIP           : enable
    INT LF OSC    : enable
    INT LDO       : select
    ILDO/EPWR     : enable
    SIP flash     : enable

====================================================================

mnist demo
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================================ model stat ================================
mdl_type=0 (int8))
out_deq=1
input_cnt=1, output_cnt=1, layer_cnt=6
input 3dims: (28, 28, 1)
output 1dims: (1, 1, 10)

exception:6 happen!!
appos pstack:0x20a0e0 msp:0x24bfe0 psp:0x20a100
msplim:0x0 psplim:0x209a58
usage fault happen, UFSR:0x100
CPU registers:
R00:[0x20a100]: 0x00000019
R01:[0x20a104]: 0x00000003
R02:[0x20a108]: 0x00000000
R03:[0x20a10c]: 0x00000000
R04:[0x20a0e0]: 0x0020a1f8
R05:[0x20a0e4]: 0x002056c5
R06:[0x20a0e8]: 0x0000001c
R07:[0x20a0ec]: 0x00000000
R08:[0x20a0f0]: 0x08080808
R09:[0x20a0f4]: 0x09090909
R10:[0x20a0f8]: 0x10101010
R11:[0x20a0fc]: 0x11111111
R12:[0x20a110]: 0x00209413
R14(LR):[0x20a114]: 0x00204063
R15(PC):[0x20a118]: 0x00204062
xPSR:[0x20a11c]: 0x61100000
SHCSR:0x00070008 step:0
FPSCR:0xe000ed38

stack info:
[0x20a120]: 0x09090909 0x0001cd89 0x0020b9e0 0x00000019
[0x20a130]: 0x002093f8 0x00203315 0x00000000 0x00204da1
[0x20a140]: 0x00206cc9 0x0020a15c 0x00000001 0x0020a1f8
[0x20a150]: 0x002056c5 0x00204063 0x00206cc9 0x00000001
[0x20a160]: 0x00000001 0x00000001 0x0000000a 0x0001ca41
[0x20a170]: 0x00000001 0x0020b9e0 0x00000000 0x00000000
[0x20a180]: 0x00000000 0x0001cc81 0x0020a260 0x00000000
[0x20a190]: 0x0020b9e0 0xffffffff 0x00000000 0x0020b9e0
[0x20a1a0]: 0x0020a260 0x0000001c 0x00205647 0x08080808
[0x20a1b0]: 0x09090909 0x0001cd89 0x0020b9e0 0x0020a1f8
[0x20a1c0]: 0x0020a1ec 0x0000001c 0x00205647 0x08080808
[0x20a1d0]: 0x09090909 0x10101010 0x11111111 0x0020127d
[0x20a1e0]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0x001c0003
[0x20a1f0]: 0x0001001c 0x00207114 0x001c0003 0x0001001c
[0x20a200]: 0x00000000 0xa5a5a5a5 0x00209a58 0xfffffffd
[0x20a210]: 0x04040404 0x05050505 0x06060606 0x07070707
[0x20a220]: 0x08080808 0x09090909 0x10101010 0x00000000
[0x20a230]: 0x00000000 0x04040404 0x05050505 0x06060606
[0x20a240]: 0x07070707 0x00201413 0x03030303 0x0002141d
[0x20a250]: 0xa5a5a5a5 0xa5a5a5a5 0x00000068 0xfffffffc
[0x20a260]: 0x0020a058 0x0000138c 0x00200900 0x00200900
[0x20a270]: 0x0020a260 0x002008f8 0x00000004 0x0020099c
[0x20a280]: 0x0020099c 0x0020a260 0x00000000 0x00000003
[0x20a290]: 0x00209a58 0x6e69616d 0x4418fe00 0x16dd06e6
[0x20a2a0]: 0x00fe4dbc 0x00000001 0x27d039ed 0x00000003
[0x20a2b0]: 0x00000000 0x00000000 0x00000000 0x9f7a9300
[0x20a2c0]: 0x00000208 0xfffffffc 0xa5a5a5a5 0xa5a5a5a5
[0x20a2d0]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a2e0]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a2f0]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a300]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a310]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a320]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a330]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a340]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a350]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a360]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a370]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a380]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a390]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a3a0]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a3b0]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a3c0]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a3d0]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a3e0]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a3f0]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a400]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a410]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a420]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a430]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a440]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a450]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a460]: 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5 0xa5a5a5a5
[0x20a470]: 0xa5a5a5a5 0xa5a5a5a5 0x0020a2c8 0xfffffffd
[0x20a480]: 0x04040404 0x05050505 0x06060606 0x07070707
[0x20a490]: 0x08080808 0x09090909 0x10101010 0x11111111
[0x20a4a0]: 0x00000000 0x01010101 0x02020202 0x03030303
[0x20a4b0]: 0x12121212 0x0002141d 0x00203ad9 0x01000000
[0x20a4c0]: 0xa5a5a5a5 0xa5a5a5a5 0x00000068 0xfffffffc
[0x20a4d0]: 0x0020a478 0x310bfe93 0x002008c4 0x002008c4
[0x20a4e0]: 0x0020a4d0 0x002008bc 0x00000007 0xf668acd2
[0x20a4f0]: 0x504cf2d4 0x0020a4d0 0x00000000 0x00000000
[0x20a500]: 0x0020a2c8 0x454c4449 0x58e29900 0xe9499e84
[0x20a510]: 0x000f851c 0x00000002 0x88208fae 0x00000000

[LR]:0x204063
[0x203e60]: 0x83f0e8bd 0x68ab696c 0x4621b142 0xf85168a2
[0x203e70]: 0x441a0f10 0x92146849 0xc203aa12 0x68e246a1
[0x203e80]: 0x93174413 0x0f18f859 0xf8d9ab15 0xc3031004
[0x203e90]: 0x2b058823 0x80b7f200 0xf003e8df 0x7d695e03
[0x203ea0]: 0x6ae10388 0x2312e9d4 0x6aa19110 0x910f4423
[0x203eb0]: 0x44226a61 0x6a21910e 0x910da812 0x44216c61
[0x203ec0]: 0x6be1910c 0xf894910b 0x910a103b 0x103af894
[0x203ed0]: 0xf8949109 0x91081039 0x1038f894 0x8ee19107
[0x203ee0]: 0xf8949106 0x91051035 0x1034f894 0xf8949104
[0x203ef0]: 0x91031033 0x1032f894 0xf8949102 0x91011031
[0x203f00]: 0x1030f894 0xa9159100 0xfb60f000 0xd1a62800
[0x203f10]: 0xb113686b 0x46284621 0x88634798 0xfb08b1a3
[0x203f20]: 0xf8d9f206 0xeb073000 0x50bb0c02 0x3004f8d9
[0x203f30]: 0x3004f8cc 0x68a9682b 0x68e0795b 0xd1402b00
[0x203f40]: 0xf8cc4401 0x36011008 0x696b6862 0x616b4413
[0x203f50]: 0x33018a6b 0xe77c826b 0xa9156ae3 0x6aa39301
[0x203f60]: 0x9300a812 0x6a226a63 0xfd5af000 0x6ae1e7ce
[0x203f70]: 0x230de9d4 0x6aa19104 0x91034423 0x44226a61
[0x203f80]: 0x6a219102 0x9101a812 0x44216b21 0xa9159100
[0x203f90]: 0xfd92f000 0x6ae3e7ba 0x9301a915 0xa8126aa3
[0x203fa0]: 0x6a639300 0xf0006a22 0xe7affdcb 0xa9156ae3
[0x203fb0]: 0x6aa39301 0x9300a812 0x6a226a63 0xfe60f000
[0x203fc0]: 0x8ba2e7a4 0x43538b63 0x435a8be2 0x440b1883
[0x203fd0]: 0xf0233307 0x469e0307 0xeb034401 0x454b0982
[0x203fe0]: 0xf8ccd102 0xe7aee008 0x2b01f911 0xed946ae0
[0x203ff0]: 0x1a127a0a 0x2a90ee07 0x7ae7eef8 0x7a87ee67
[0x204000]: 0x7a01ece3 0x2005e7eb 0x0000e729 0x00000000
[0x204010]: 0x4ff0e92d 0x27004605 0x4897b095 0xfee6f000
[0x204020]: 0x79294b96 0xf8534896 0xf0002021 0x7969fea3
[0x204030]: 0xf0004894 0x896bfe9f 0x88e9892a 0xf0004892
[0x204040]: 0x8b6bfe99 0x93008aea 0x8b2b8aa9 0xf000488f
[0x204050]: 0x8c6bfe91 0x93008bea 0x8c2b8ba9 0xf000488c
[0x204060]: 0xe9d5fe89 0x488b1203 0xfe84f000 0xf000488a
[0x204070]: 0x488afebd 0xfebaf000 0x8b2a8ae9 0xfb028b6b
[0x204080]: 0x4358f001 0x48869000 0xfe74f000 0x46b846ba
[0x204090]: 0x9234f8df 0xb234f8df 0x0440f105 0x42bb896b
[0x2040a0]: 0x4640dc26 0xfb10f622 0x4b7e2200 0xfb76f622
[0x2040b0]: 0xe9d54606 0x44180303 0xf622460f 0x2200faf5
[0x2040c0]: 0xf6224b78 0xe9cdfb6b 0x46500102 0xfafcf622
[0x2040d0]: 0xe9d3a367 0xf6222300 0x4632fc8b 0x0100e9cd
[0x2040e0]: 0x4871463b 0xfe46f000 0xb0152000 0x8ff0e8bd
[0x2040f0]: 0x4648213f 0xfe3ef000 0x486c1b61 0xfe3af000
[0x204100]: 0x46482146 0xfe36f000 0x88626ae3 0x93108826
[0x204110]: 0x92136aa0 0xfaeaf622 0x010ee9cd 0x930c6a63
[0x204120]: 0xf6226a20 0xe9cdfae3 0x8be3010a 0x93099a13
[0x204130]: 0x46318ba3 0x8b639308 0x9307485d 0x93068b23
[0x204140]: 0x93058ae3 0x93048aa3 0x93038a63 0x93028a23
[0x204150]: 0x930168e3 0x930068a3 0xf0006863 0x8823fe0b
[0x204160]: 0xf2002b05 0x8b6180e9 0x8be68ba2 0x4372434a
[0x204170]: 0x68629213 0xf85b4490 0xeba82023 0x2b050802
[0x204180]: 0x80d8f200 0xf013e8df 0x003c0006 0x006f0042
[0x204190]: 0x00a400d6 0xf8949a13 0xf8943030 0x43536031
[0x2041a0]: 0x8ae64373 0x46482155 0xf000435e 0x6ce3fde3
[0x2041b0]: 0x930b4840 0x930a6ca3 0x93096c63 0x93086be3
[0x2041c0]: 0x303bf894 0xf8949307 0x9306303a 0x3039f894
[0x2041d0]: 0xf8949305 0x93043038 0x93038ee3 0x3035f894
[0x2041e0]: 0xf8949302 0x93013034 0x3033f894 0xf8949300
[0x2041f0]: 0xf8943032 0xf8942031 0xf0001030 0xe011fdbb
[0x204200]: 0x8a638aa6 0x8ae64373 0xe00b435e 0x215f8ae3
[0x204210]: 0x435e4648 0xfdaef000 0x230de9d4 0x48266b21
[0x204220]: 0xfda8f000 0x88229b13 0x68639305 0x1022f85b
[0x204230]: 0x1a5b4822 0x68e39304 0x93034921 0xf85168a3
[0x204240]: 0x93022022 0x46398be3 0x8ba39301 0x930044b2
[0x204250]: 0xf0008b63 0x4631fd8f 0xf000481a 0x6863fd8b

[PC]:0x204062
[0x203e60]: 0x83f0e8bd 0x68ab696c 0x4621b142 0xf85168a2
[0x203e70]: 0x441a0f10 0x92146849 0xc203aa12 0x68e246a1
[0x203e80]: 0x93174413 0x0f18f859 0xf8d9ab15 0xc3031004
[0x203e90]: 0x2b058823 0x80b7f200 0xf003e8df 0x7d695e03
[0x203ea0]: 0x6ae10388 0x2312e9d4 0x6aa19110 0x910f4423
[0x203eb0]: 0x44226a61 0x6a21910e 0x910da812 0x44216c61
[0x203ec0]: 0x6be1910c 0xf894910b 0x910a103b 0x103af894
[0x203ed0]: 0xf8949109 0x91081039 0x1038f894 0x8ee19107
[0x203ee0]: 0xf8949106 0x91051035 0x1034f894 0xf8949104
[0x203ef0]: 0x91031033 0x1032f894 0xf8949102 0x91011031
[0x203f00]: 0x1030f894 0xa9159100 0xfb60f000 0xd1a62800
[0x203f10]: 0xb113686b 0x46284621 0x88634798 0xfb08b1a3
[0x203f20]: 0xf8d9f206 0xeb073000 0x50bb0c02 0x3004f8d9
[0x203f30]: 0x3004f8cc 0x68a9682b 0x68e0795b 0xd1402b00
[0x203f40]: 0xf8cc4401 0x36011008 0x696b6862 0x616b4413
[0x203f50]: 0x33018a6b 0xe77c826b 0xa9156ae3 0x6aa39301
[0x203f60]: 0x9300a812 0x6a226a63 0xfd5af000 0x6ae1e7ce
[0x203f70]: 0x230de9d4 0x6aa19104 0x91034423 0x44226a61
[0x203f80]: 0x6a219102 0x9101a812 0x44216b21 0xa9159100
[0x203f90]: 0xfd92f000 0x6ae3e7ba 0x9301a915 0xa8126aa3
[0x203fa0]: 0x6a639300 0xf0006a22 0xe7affdcb 0xa9156ae3
[0x203fb0]: 0x6aa39301 0x9300a812 0x6a226a63 0xfe60f000
[0x203fc0]: 0x8ba2e7a4 0x43538b63 0x435a8be2 0x440b1883
[0x203fd0]: 0xf0233307 0x469e0307 0xeb034401 0x454b0982
[0x203fe0]: 0xf8ccd102 0xe7aee008 0x2b01f911 0xed946ae0
[0x203ff0]: 0x1a127a0a 0x2a90ee07 0x7ae7eef8 0x7a87ee67
[0x204000]: 0x7a01ece3 0x2005e7eb 0x0000e729 0x00000000
[0x204010]: 0x4ff0e92d 0x27004605 0x4897b095 0xfee6f000
[0x204020]: 0x79294b96 0xf8534896 0xf0002021 0x7969fea3
[0x204030]: 0xf0004894 0x896bfe9f 0x88e9892a 0xf0004892
[0x204040]: 0x8b6bfe99 0x93008aea 0x8b2b8aa9 0xf000488f
[0x204050]: 0x8c6bfe91 0x93008bea 0x8c2b8ba9 0xf000488c
[0x204060]: 0xe9d5fe89 0x488b1203 0xfe84f000 0xf000488a
[0x204070]: 0x488afebd 0xfebaf000 0x8b2a8ae9 0xfb028b6b
[0x204080]: 0x4358f001 0x48869000 0xfe74f000 0x46b846ba
[0x204090]: 0x9234f8df 0xb234f8df 0x0440f105 0x42bb896b
[0x2040a0]: 0x4640dc26 0xfb10f622 0x4b7e2200 0xfb76f622
[0x2040b0]: 0xe9d54606 0x44180303 0xf622460f 0x2200faf5
[0x2040c0]: 0xf6224b78 0xe9cdfb6b 0x46500102 0xfafcf622
[0x2040d0]: 0xe9d3a367 0xf6222300 0x4632fc8b 0x0100e9cd
[0x2040e0]: 0x4871463b 0xfe46f000 0xb0152000 0x8ff0e8bd
[0x2040f0]: 0x4648213f 0xfe3ef000 0x486c1b61 0xfe3af000
[0x204100]: 0x46482146 0xfe36f000 0x88626ae3 0x93108826
[0x204110]: 0x92136aa0 0xfaeaf622 0x010ee9cd 0x930c6a63
[0x204120]: 0xf6226a20 0xe9cdfae3 0x8be3010a 0x93099a13
[0x204130]: 0x46318ba3 0x8b639308 0x9307485d 0x93068b23
[0x204140]: 0x93058ae3 0x93048aa3 0x93038a63 0x93028a23
[0x204150]: 0x930168e3 0x930068a3 0xf0006863 0x8823fe0b
[0x204160]: 0xf2002b05 0x8b6180e9 0x8be68ba2 0x4372434a
[0x204170]: 0x68629213 0xf85b4490 0xeba82023 0x2b050802
[0x204180]: 0x80d8f200 0xf013e8df 0x003c0006 0x006f0042
[0x204190]: 0x00a400d6 0xf8949a13 0xf8943030 0x43536031
[0x2041a0]: 0x8ae64373 0x46482155 0xf000435e 0x6ce3fde3
[0x2041b0]: 0x930b4840 0x930a6ca3 0x93096c63 0x93086be3
[0x2041c0]: 0x303bf894 0xf8949307 0x9306303a 0x3039f894
[0x2041d0]: 0xf8949305 0x93043038 0x93038ee3 0x3035f894
[0x2041e0]: 0xf8949302 0x93013034 0x3033f894 0xf8949300
[0x2041f0]: 0xf8943032 0xf8942031 0xf0001030 0xe011fdbb
[0x204200]: 0x8a638aa6 0x8ae64373 0xe00b435e 0x215f8ae3
[0x204210]: 0x435e4648 0xfdaef000 0x230de9d4 0x48266b21
[0x204220]: 0xfda8f000 0x88229b13 0x68639305 0x1022f85b
[0x204230]: 0x1a5b4822 0x68e39304 0x93034921 0xf85168a3
[0x204240]: 0x93022022 0x46398be3 0x8ba39301 0x930044b2
[0x204250]: 0xf0008b63 0x4631fd8f 0xf000481a 0x6863fd8b

[text start]:0x200000
[0x200000]: 0x00200068 0x00207474 0x00207558 0x0020018c
[0x200010]: 0x00200010 0x00200010 0x00200018 0x00200018
[0x200020]: 0x0000fffc 0x0000000e 0x00000008 0xffffffff
[0x200030]: 0x00000fff 0x000001f4 0x002075c8 0x002075c8
[0x200040]: 0x00000000 0x00000000 0x00200150 0x00200170
[0x200050]: 0x00000000 0x0000d73a 0x0000d710 0x00000000
[0x200060]: 0x00000000 0x00000000 0x0020bb6c 0x00200000
[0x200070]: 0x00000000 0x0000dd94 0x0000dd78 0x00000000
[0x200080]: 0x0020b828 0x0020b828 0x0000006e 0x0000f489
[0x200090]: 0x0000000f 0x00000006 0x00000000 0x00000000
[0x2000a0]: 0x00201f01 0x00201f45 0x00000006 0x00000000
[0x2000b0]: 0x00000000 0x00200170 0x00209a38 0x00000000
[0x2000c0]: 0x00010eec 0x00010ea8 0x00000000 0x00000000
[0x2000d0]: 0x00000000 0x00000000 0x00000000 0x00000000
[0x2000e0]: 0x00011a00 0x000119e4 0x00000000 0x00000000
[0x2000f0]: 0x00000000 0x00000000 0x00000000 0x00000000
[0x200100]: 0x00011a05 0x000119e4 0x00000001 0x00000000
[0x200110]: 0x00000000 0x00000000 0x00000000 0x00000000
[0x200120]: 0x00011e3f 0x0020012c 0x00000000 0x00011e3f
[0x200130]: 0x00000000 0x00000000 0x00000000 0x00000000
[0x200140]: 0x00011ca5 0x00011c39 0x00000000 0x00000000
[0x200150]: 0x00207474 0x00200048 0x00000000 0x000127e8
[0x200160]: 0x000127cc 0x00000000 0x00000000 0x00000000
[0x200170]: 0x00200048 0x002000b4 0x00000000 0x00014551
[0x200180]: 0x00014528 0x00000000 0x00000038 0x00200008
[0x200190]: 0x00207558 0x00000000 0x00000000 0x00000000
[0x2001a0]: 0x00016374 0x00016378 0x00000000 0x00000006
[0x2001b0]: 0x00000000 0x00017079 0x00016f81 0x00016f7d
[0x2001c0]: 0x0017701c 0x00017399 0x000172a1 0x0001712d
[0x2001d0]: 0x00156085 0x00017635 0x00017419 0x00017415
[0x2001e0]: 0x00166085 0x00017635 0x00017419 0x00017415
[0x2001f0]: 0x00136085 0x00017635 0x00017419 0x00017415

[NVIC Pending]:0xe000e200
[0xe000e200]:0x00000000, 0x00000000, 0x00000000, 0x00000000
[0xe000e210]:0x00000000, 0x00000000, 0x00000000, 0x00000000
[0xe000e220]:0x00000000, 0x00000000, 0x00000000, 0x00000000
[0xe000e230]:0x00000000, 0x00000000, 0x00000000, 0x00000000

[NVIC Activing]:0xe000e300
[0xe000e300]:0x00000000, 0x00000000, 0x00000000, 0x00000000
[0xe000e310]:0x00000000, 0x00000000, 0x00000000, 0x00000000
[0xe000e320]:0x00000000, 0x00000000, 0x00000000, 0x00000000
[0xe000e330]:0x00000000, 0x00000000, 0x00000000, 0x00000000
Name            State Pri Idx StkCur     StkBot     StkFree StkFreeMin
main            ?     3   1   0x20a058   0x209a58   1536    1064
IDLE            R     0   2   0x20a478   0x20a2c8   432     432
Tmr Svc         B     6   3   0x20ada0   0x20a630   1904    1904
Looper          B     4   5   0x20c580   0x20be48   1848    1848
console         B     4   6   0x20ce90   0x20c738   1880    1880
pm              B     3   4   0x20b6f0   0x20afb8   1848    1848

这里具体看这一部分

exception:6 happen!!
appos pstack:0x20a0e0 msp:0x24bfe0 psp:0x20a100
msplim:0x0 psplim:0x209a58
usage fault happen, UFSR:0x100
CPU registers:
R00:[0x20a100]: 0x00000019
R01:[0x20a104]: 0x00000003
R02:[0x20a108]: 0x00000000
R03:[0x20a10c]: 0x00000000
R04:[0x20a0e0]: 0x0020a1f8
R05:[0x20a0e4]: 0x002056c5
R06:[0x20a0e8]: 0x0000001c
R07:[0x20a0ec]: 0x00000000
R08:[0x20a0f0]: 0x08080808
R09:[0x20a0f4]: 0x09090909
R10:[0x20a0f8]: 0x10101010
R11:[0x20a0fc]: 0x11111111
R12:[0x20a110]: 0x00209413
R14(LR):[0x20a114]: 0x00204063
R15(PC):[0x20a118]: 0x00204062
xPSR:[0x20a11c]: 0x61100000
SHCSR:0x00070008 step:0
FPSCR:0xe000ed38

参考Arm® Cortex®-M33 Devices Generic User Guide，查阅到 exception:6 为 usage fault

继续追踪，查看 UFSR 寄存器定义，结合上面报错 usage fault happen, UFSR:0x100 可以得出这里的错误是 UNALIGNED ，也就是 Illegal unaligned load or store

对于 Cortex M33 平台，仅仅支持如下的部分访问方式，其他的访问方法均会触发UNALIGNED错误

那么看一下是哪一行代码触发了这个错误，看最后一个PC指向的地址：0x00204062

位于 tm_stat.c，看上去只是一行普普通通的 printf ，注释了看看效果。

虽然也出错了，但是代码已经运行到后面去了，现在继续上面的操作。

use default flash chip mJedec 0x0
[FD I]: mode: 0x10, freq: 96000000Hz, drv: 0
[FD I]: jedec: 0x0, suspend_support: 1
mode select:e

platform information ===============================================
XR806 SDK v1.2.1  Sep 19 2022 20:46:25 62800400

heap space [0x2097e8, 0x24bc00), size 271384

cpu  clock 160000000 Hz
HF   clock  40000000 Hz

sdk option:
    XIP           : enable
    INT LF OSC    : enable
    INT LDO       : select
    ILDO/EPWR     : enable
    SIP flash     : enable

====================================================================

mnist demo
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================================ model stat ================================
mdl_type=0 (int8))
out_deq=1
input_cnt=1, output_cnt=1, layer_cnt=6
input 3dims: (28, 28, 1)
output 1dims: (1, 1, 10)
//Note: PARAM is layer param size, include align padding

Idx	Layer	         outshape	inoft	outoft	PARAM	MEMOUT OPS
---	Input    	 28, 28,  1	-   	0    	0 	784 	0
###L63: body oft = 64
###L70: type=0, is_out=0, size=152, in_oft=0, out_oft=784, in_dims=[3,28,28,1], out_dims=[3,13,13,4], in_s=0.004, in_zp=-128, out_s=0.016, out_zp=-128
###L85: Conv2d: kw=3, kh=3, sw=2, sh=2, dw=1, dh=1, act=1, pad=[0,0,0,0], dmul=0, ws_oft=80, w_oft=96, b_oft=136
000	Conv2D      	 13, 13,  4	0	784	72	676	6084
###L63: body oft = 216
###L70: type=0, is_out=0, size=432, in_oft=784, out_oft=0, in_dims=[3,13,13,4], out_dims=[3,6,6,8], in_s=0.016, in_zp=-128, out_s=0.016, out_zp=-128
###L85: Conv2d: kw=3, kh=3, sw=2, sh=2, dw=1, dh=1, act=1, pad=[0,0,0,0], dmul=0, ws_oft=80, w_oft=112, b_oft=400
001	Conv2D      	  6,  6,  8	784	0	352	288	10368
###L63: body oft = 648
###L70: type=0, is_out=0, size=1360, in_oft=0, out_oft=1400, in_dims=[3,6,6,8], out_dims=[3,2,2,16], in_s=0.016, in_zp=-128, out_s=0.057, out_zp=-128
###L85: Conv2d: kw=3, kh=3, sw=2, sh=2, dw=1, dh=1, act=1, pad=[0,0,0,0], dmul=0, ws_oft=80, w_oft=144, b_oft=1296
002	Conv2D      	  2,  2, 16	0	1400	1280	64	4608
###L63: body oft = 2008
###L70: type=1, is_out=0, size=48, in_oft=1400, out_oft=0, in_dims=[3,2,2,16], out_dims=[1,1,1,16], in_s=0.057, in_zp=-128, out_s=0.022, out_zp=-128
003	GAP      	  1,  1, 16	1400	0	0	16	64
###L63: body oft = 2056
###L70: type=2, is_out=0, size=304, in_oft=0, out_oft=1448, in_dims=[1,1,1,16], out_dims=[1,1,1,10], in_s=0.022, in_zp=-128, out_s=0.151, out_zp=42
###L95:
exception:6 happen!!
appos pstack:0x20a0b0 msp:0x24bfe0 psp:0x20a0d0
msplim:0x0 psplim:0x209a28
usage fault happen, UFSR:0x100
CPU registers:
R00:[0x20a0d0]: 0x00000008
R01:[0x20a0d4]: 0x00000003
R02:[0x20a0d8]: 0x00000000
R03:[0x20a0dc]: 0x00000000
R04:[0x20a0b0]: 0x00205ebd
R05:[0x20a0b4]: 0x002056b5
R06:[0x20a0b8]: 0x000000a0
R07:[0x20a0bc]: 0x00000004
R08:[0x20a0c0]: 0x00000798
R09:[0x20a0c4]: 0x00206d7c
R10:[0x20a0c8]: 0x00005284
R11:[0x20a0cc]: 0x00206f28
R12:[0x20a0e0]: 0x002093d2
R14(LR):[0x20a0e4]: 0x0020420f
R15(PC):[0x20a0e8]: 0x0020420e
xPSR:[0x20a0ec]: 0x61100000
SHCSR:0x00070008 step:0
FPSCR:0xe000ed38

找到 PC->0x0020420e 果然又是printf

注释掉

然后终于不是死在printf 上了，死在 switch 上了

20220920111005

这就没招了，询问群里大佬

那行，换一个编译器看看，换一个 gcc-arm-none-eabi-10.3-2021.07-x86_64-linux.tar.bz2，测试完全正常。

Kconfig 增加选项

每一次修改模型类型，优化都要修改头文件，太不优雅了，加入 Kconfig 里直接配置比较好

编写 Kconfig

# Sipeed lib TinyMaix
config TINYMAIX
	bool "TinyMaix is a tiny inference library for microcontrollers (TinyML)."
	default n
	help
		set y to build library tinymaix.

choice
	prompt "TinyMaix TM_MDL_TYPE"
	depends on TINYMAIX
	default TINYMAIX_TM_MDL_INT8
	help
	  Select TinyMaix TM_MDL_TYPE, Support TM_MDL_INT8, TM_MDL_FP32

config TINYMAIX_TM_MDL_INT8
	bool "Using TM_MDL_INT8"
	help
	  Select TM_MDL_INT8.

config TINYMAIX_TM_MDL_FP32
	bool "Using TM_MDL_FP32"
	help
	  Select TM_MDL_FP32.
endchoice

choice
	prompt "TinyMaix ARCH"
	depends on TINYMAIX
	default TINYMAIX_TM_ARCH_CPU
	help
	  Select TinyMaix instruction set acceleration, Support ARCH_CPU, ARCH_ARM_SIMD

config TINYMAIX_TM_ARCH_CPU
	bool "Pure cpu compute"
	help
	  Pure cpu compute.

config TINYMAIX_TM_ARCH_ARM_SIMD
	bool "Using ARM SIMD"
	help
	  Using ARM SIMD.
endchoice

choice
	prompt "TinyMaix OPT_LEVEL"
	depends on TINYMAIX
	default TINYMAIX_TM_ARCH_CPU
	help
	  Select TinyMaix TM_OPT, Support TM_OPT0, TM_TM_OPT1

config TINYMAIX_TM_TM_OPT0
	bool "TM_OPT0, least code and buf"
	help
		least code and buf.

config TINYMAIX_TM_TM_OPT1
	bool "TM_OPT1, opt for speed, need more code and buf"
	help
		opt for speed, need more code and buf.
endchoice

头文件里加一下就ok了

#if defined(CONFIG_TINYMAIX_TM_ARCH_CPU)
#define TM_ARCH TM_ARCH_CPU
#elif defined(CONFIG_TINYMAIX_TM_ARCH_ARM_SIMD)
#define TM_ARCH TM_ARCH_ARM_SIMD
#else
#error "Unsupported TM_ARCH"
#endif

#if defined(CONFIG_TINYMAIX_TM_TM_OPT0)
#define TM_OPT_LEVEL TM_OPT0
#elif defined(CONFIG_TINYMAIX_TM_TM_OPT1)
#define TM_OPT_LEVEL TM_OPT1
#else
#error "Unsupported TM_OPT_LEVEL"
#endif

#if defined(CONFIG_TINYMAIX_TM_MDL_INT8)
#define TM_MDL_TYPE TM_MDL_INT8
#elif defined(CONFIG_TINYMAIX_TM_MDL_FP32)
#define TM_MDL_TYPE TM_MDL_FP32
#else
#error "Unsupported TM_MDL_TYPE"
#endif

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