LoRa Demo 的上报周期单位调整为秒

develop guide, see http://iwiki.oa.com/pages/viewpage.action?pageId=46342556

添加HTS221温湿度传感器驱动

12-27更新

add sensor_e53_ia1_e2e_demo

consider this situation: no more fresh block, meantime an item with such a big size come in, and currently no block inuse has sufficient space to save this item, the code will run into the modified line, and KV_MGR_WORKSPACE will be set to KV_BLK_INVALID. this will cause no matter what size of an item wanna come in again, kv_blk_search_suitable just return KV_BLK_INVALID because "if (KV_MGR_WORKSPACE == KV_BLK_INVALID)"  is true.

1. a true wear-leveling kv fs for norflash, especially optimize for some onchip norflash with "write once on one single write unit" like stm32l4, a true "no earse before write" flash algorithm.
2. an "as less as possible" gc strategy, do best to save norflash's life.
3. full "power down protection" support
4. see "examples" of kv, project in "TencentOS_tiny_EVB_MX_Plus", with onchip flash and qspiflash sample.

add lora lowpower at command support

add GD32V TencentOS tiny EVB_LX board

拉取更新

need meshctl installed on raspberrypi. nimble offical samples have a lot of pit ...

1. add TOS_CFG_LIBC_PRINTF_EN
1: enable printf to implement tos_kprintf
when you call tos_kprintf(actually currently it's a MACRO rather than a function) , the libc will be invloved into the image, most of the time it means a larger image size.

0: disable printf, means tos_kprintf is defined as an empty MACRO
most of the time, means you will not get a log output from the uart(currently we donnot have a console yet) but a smaller image size.

2. fix a bug of tos_mail_q and tos_priority_mail_q
if we are post-ing a mail and there is[are] task[s] just pend-ing for the mail queue, the mail delivered to the pend-er will be a pointer, and probably it's a pointer to the local variable on the stack. Actually we should do a memcpy rather than a pointer assignment. for more details, see the patch.

fix character encoding

Port to MSP430X platform

port to msp430fr

[Config] Add Board NUCLEO_STM32G071RB

[What]
[Why]
[How]

download "nimble connect" on your phone, connect to "Nimble Uart", send byte array or uint8 to the board through the app

add nb-iot demo for huawei ocean_connect