fix for art-pi smart
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@ -6,34 +6,36 @@ ART-pi smart采用了米尔科技的imx6ull核心板,硬件由韦东山团队
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![硬件资源](figures/hw_resources.png)
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## 应用列表
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-[x] cpp_tc
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-[x] hello
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-[x] zlib_tc
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-[x] smart-fetch
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-[x] umailbox
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-[x] busybox命令(可通过help查看)
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-[x] WIFI
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-[x] EMMC读写
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下列应用支持ash后才可以使用
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-[ ] shm_ping
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-[ ]shm_pong
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-[ ]webclient
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-[ ]webserver
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> ## 当前支持情况
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> ### 内核
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> * [ ] rt-thread
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> * [x] rt-smart
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>
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> ### 驱动
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> * [x] uart
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> * [x] SPI
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> * [x] GPIO
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> * [x] sdcard
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> * [x] RW007
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> * [x] enet
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> * [ ] usb
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> * [x] emmc
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>
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> ### 组件
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> * [x] fat文件系统
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> * [x] LWIP网络协议栈
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> * [x] wlan
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>
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> ### 应用
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> * [x] xmake 构建环境
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> * [x] busybox
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> * [x] smart-apps
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>
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> ### 待完善、修复
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> * [ ] ash 支持ash开机自启动
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> * [ ] 网络 以太网网络问题修复
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> * [ ] emmc 从emmc启动内核、挂载文件系统
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## 应用编译
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参考https://github.com/RT-Thread/userapps.git的README.md搭建xmake编译环境并编译smart应用
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@ -81,13 +83,3 @@ go 0x80001000
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```bash
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fatload mmc 0:1 0x80001000 rtthread.bin; dcache flush; go 0x80001000
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```
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## 待改进
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* 支持ash开机自启动
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* 以太网网络问题
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* Emmc1、2、3 mkfs失败
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* 从emmc启动内核
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@ -184,7 +184,7 @@ void page_read(struct rt_varea *varea, struct rt_aspace_io_msg *msg)
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varea->start, varea->size, varea->offset, varea->attr, varea->flag);
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ret = dfs_aspace_mmap_read(file, varea, msg);
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if (ret >= 0)
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if (ret > 0)
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{
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msg->response.status = MM_FAULT_STATUS_OK;
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if (ret < ARCH_PAGE_SIZE)
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@ -1105,7 +1105,7 @@ int dfs_aspace_read(struct dfs_file *file, void *buf, size_t count, off_t *pos)
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}
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len = count > len ? len : count;
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if (len > 0)
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if (len)
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{
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rt_memcpy(ptr, page->page + *pos - page->fpos, len);
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ptr += len;
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