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m1s_bl808_sdk's Issues

xram location

Why is the xram located at the start of the ocram instead of using the dedicated xram

From the included linker scripts:

        xram_memory (!rx) : ORIGIN = 0x22020000, LENGTH = 16K 

From the datasheet?

XRAM(EMI)     | 0x40000000            | 16KB  | Shared RAM mainly for data communication among M0/LP/D0                                                   ```

NPU Toolchain

I'm not sure if this SDK is abandoned in favour of bouffalo's SDK or if it'll receive further updates.

In any case, the available BLAI_Toolchain doesn't really work with models generated with recent tensorflow versions. It appears the modern TFLite format with per-channel quantisation and exclusively uint8 operations produces unrunnable models after conversion.

Is there a newer version of this tool that can be shared, or an alternative recommended approach?

Jtag only works on jtag_cpu0

Hi,
I'm follow the examples. and

I set on /dev/ttyUSB1 to jtag_cpu0
then It's works,

kwang@debian:~/App$ DebugServerConsole 
+---                                                    ---+
|  T-Head Debugger Server (Build: Oct 21 2022)	           |
   User   Layer Version : 5.16.05 
   Target Layer version : 2.0
|  Copyright (C) 2022 T-HEAD Semiconductor Co.,Ltd.        |
+---                                                    ---+
T-HEAD: CKLink_Lite_V2, App_ver unknown, Bit_ver null, Clock 2526.316KHz,
       5-wire, With DDC, Cache Flush On, SN CKLink_Lite_Vendor-rog B4555C.
+--  Debug Arch is RVDM.  --+
+--  CPU 0  --+
RISCV CPU Info:
	WORD[0]: 0x0910090d
	WORD[1]: 0x12046000
	WORD[2]: 0x260c0001
	WORD[3]: 0x30030066
	WORD[4]: 0x42180000
	WORD[5]: 0x50000000
	WORD[6]: 0x60000753
	MISA   : 0x8000000000b4112d
Target Chip Info:
	CPU Type is C906FDV, Endian=Little, Vlen=128, Version is R2S1P6.
	DCache size is 32K, 4-Way Set Associative, Line Size is 64Bytes, with no ECC.
	ICache size is 32K, 2-Way Set Associative, Line Size is 64Bytes, with no ECC.
	Target is 1 core.
	MMU has 128 JTLB items.
	PMP zone num is 8.
	HWBKPT number is 4, HWWP number is 4.
	MISA: (RV64IMAFDCVX, Imp M-mode, S-mode, U-mode)

GDB connection command for CPUs(CPU0):
	target remote 127.0.0.1:1025
	target remote 192.168.0.3:1025

****************  DebuggerServer Commands List **************
help/h
	Show help informations.
*************************************************************
DebuggerServer$ 

but If I changed to jtag_m0
not works

kwang@debian:~/App$ DebugServerConsole 
+---                                                    ---+
|  T-Head Debugger Server (Build: Oct 21 2022)	           |
   User   Layer Version : 5.16.05 
   Target Layer version : 2.0
|  Copyright (C) 2022 T-HEAD Semiconductor Co.,Ltd.        |
+---                                                    ---+
T-HEAD: CKLink_Lite_V2, App_ver unknown, Bit_ver null, Clock 2526.316KHz,
       5-wire, With DDC, Cache Flush On, SN CKLink_Lite_Vendor-rog B4555C.
Extra Info: hacr width is 8.
ERROR: Fail to check had module of CPU 0, please check:
	1. the physical connection;
	2. the power of the target;
	3. the link clock (link clock <= (CPU clock/2));
	4. the reference voltage of link, default 3.3v;
For more information, please run Debugserver with connect log:
	 Console: run Debugserver with arguments "--debug connect".
	 UI     : select "Connect" from menu "Setting->Verbose Setting".

what am I missing? any ideas?

WiFi support?

The M1s modules are sold as supporting WiFi.

Is there any SDK support or documentation on how to use this?

在哪里可以找到关于H264编码示例?

目前参考mjpeg部分的编码做了一个模拟 其中主要参考来自bl808_mjenc.h
这里面提供了一些参数方法 因此模拟此部分的函数方法实现了bl808_h264.h部分
希望实现对视频流mipi部分的编码并转换为wifi进行传输,
但是由于资料不全,目前没有实现
请问下,关于H264部分编码,在哪里可以找到呢?非常感谢。

E907 Firmware hangs initializing the SD card

Hey,

since commit sipeed/M1s_BL808_example@28e0767 the E907 firmware tries to initialize the SD card on start. Unfortunately, this hangs forever on my M1s Dock (with screen & camera populated), both with and without a SD card. The SD card works with a different card reader.

Note that it hangs forever since the function SDH_SendCardCommand has a timeout mechanism but SDH_GET_TIME has been #defined to be 0, so it's not effective. However that doesn't explain why it won't work with a SD card inserted.

Thanks,
Stefan

Isochronous transfer with USB host?

Hi, will the possibility of isochronous transfers with the M1S modules be added to the USB stack so we could read UVC usb cameras with it?

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