i.MX 233 brd sch

8 views
Skip to first unread message

rj w

unread,
Sep 9, 2013, 2:39:17 AM9/9/13
to ope...@googlegroups.com
板子几何尺寸50x100mm
64MB DDR, USB,MiniSD card, DM9000AE, 及 UART接口，SRAM接口的引出
 
板子目前原理图电源部分待完成，pcb尺寸封装基本完成。大家有时间可以看看233电源部分，看下如何接口比较合适。附件为原理图
 
233文档参见：
 
 
idmx1307.pdf

tong hui

unread,
Sep 9, 2013, 3:38:57 AM9/9/13
to ope...@googlegroups.com
"中安永恒"是咋回事？这图的来源合法么？

另外PCB为啥不能公开呢


--
To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
(( 订阅 OpenBoard 邮件讨论组，编写主题为“订阅”的邮件发至 ope...@googlegroups.com ))



--
/***
 * @brief 启智开源 编码自由
 * @brief Open Source,  Coding for free!
 * @note English Name - Hugo Tong
 * @param author 佟辉 Tony Hui
 * @param email tong...@gmail.com
 * @param web http://tonghuix.tk
 */

rj w

unread,
Sep 9, 2013, 3:53:56 AM9/9/13
to ope...@googlegroups.com
我用我工作电脑生成的sch，new sch还是用的以前做过的一个title，这属于cadence一个环境变量，没有改过来。pcb没有不公开阿，还没画呢阿，先发布一个的placement
idmx1307pcb_03.brd

tong hui

unread,
Sep 9, 2013, 3:59:02 AM9/9/13
to ope...@googlegroups.com
哦哦哦，最后公开发布的版本记得去掉就行了。

这是用啥软件做的？怎么打开PCB文件呢？


2013/9/9 rj w <rekin...@gmail.com>

wrj

unread,
Sep 9, 2013, 9:21:29 AM9/9/13
to ope...@googlegroups.com
Cadence Allegro

Orson Zhai

unread,
Sep 9, 2013, 11:55:29 AM9/9/13
to ope...@googlegroups.com
On 2013��09��09�� 15:59, tong hui wrote:
ŶŶŶ����󹫿������İ汾�ǵ�ȥ�������ˡ�

������ɶ������ģ���ô��PCB�ļ��أ�

�����ַ��������free pcb viewer for Allegra.
������Ҫwine���У��������ˣ�����ûװwine,˭��wine��һ�£�



2013/9/9 rj w <rekin...@gmail.com>
�����ҹ���������ɵ�sch��new sch�����õ���ǰ�����һ��title��������cadenceһ������������û�иĹ�����pcbû�в�����������û���ذ����ȷ���һ���� placement


�� 2013��9��9������3:38��tong hui <tong...@gmail.com>д ����

"�а�����"��զ���£���ͼ����Դ�Ϸ�ô��

����PCBΪɶ���ܹ�����


On Mon, Sep 9, 2013 at 3:39 PM, rj w <rekin...@gmail.com> wrote:
���Ӽ��γߴ�50x100mm
64MB DDR, USB,MiniSD card, DM9000AE, �� UART�ӿڣ�SRAM�ӿڵ����
 
����Ŀǰԭ��ͼ��Դ���ִ���ɣ�pcb�ߴ��װ����ɡ������ʱ����Կ��� 233��Դ���֣�������νӿڱȽϺ��ʡ�����Ϊԭ��ͼ
 
233�ĵ��μ�
--
To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
(( ���� OpenBoard �ʼ������飬��д����Ϊ�����ġ����ʼ����� ope...@googlegroups.com ))



--
/***
 * @brief ���ǿ�Դ ��������
 * @brief Open Source,  Coding for free!
 * @note English Name - Hugo Tong
 * @param author ١�� Tony Hui
 * @param email tong...@gmail.com
 * @param web http://tonghuix.tk
 */
--
To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
(( ���� OpenBoard �ʼ������飬��д����Ϊ�����ġ����ʼ����� ope...@googlegroups.com ))

--
To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
(( ���� OpenBoard �ʼ������飬��д����Ϊ�����ġ����ʼ����� ope...@googlegroups.com ))



--
/***
 * @brief ���ǿ�Դ ��������
 * @brief Open Source,  Coding for free!
 * @note English Name - Hugo Tong
 * @param author ١�� Tony Hui
 * @param email tong...@gmail.com
 * @param web http://tonghuix.tk
 */
--
To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
(( ���� OpenBoard �ʼ������飬��д����Ϊ�����ġ����ʼ����� ope...@googlegroups.com ))

我

unread,
Sep 9, 2013, 10:10:19 PM9/9/13
to ope...@googlegroups.com
进程里 开了 几个线程， 这些线程 经常莫名其妙的  就不动了，也没死亡，好想睡眠了，但是线程里  没有 睡眠的 操作，不知什么原因。






在 2013-09-09 23:55:29，"Orson Zhai" <orso...@gmail.com> 写道：
On 2013年09月09日 15:59, tong hui wrote:
哦哦哦，最后公开发布的版本记得去掉就行了。

这是用啥软件做的？怎么打开PCB文件呢？

这个网址可以下载free pcb viewer for Allegra.
但是需要wine运行，我下载了，但我没装wine,谁有wine试一下？



2013/9/9 rj w <rekin...@gmail.com>
我用我工作电脑生成的sch，new sch还是用的以前做过的一个title，这属于cadence一个环境变量，没有改过来。pcb没有不公开阿，还没画呢阿，先发布一个的 placement
在 2013年9月9日下午3:38，tong hui <tong...@gmail.com>写 道：

"中安永恒"是咋回事？这图的来源合法么？

另外PCB为啥不能公开呢


On Mon, Sep 9, 2013 at 3:39 PM, rj w <rekin...@gmail.com> wrote:
板子几何尺寸50x100mm
64MB DDR, USB,MiniSD card, DM9000AE, 及 UART接口，SRAM接口的引出
 
板子目前原理图电源部分待完成，pcb尺寸封装基本完成。大家有时间可以看看 233电源部分，看下如何接口比较合适。附件为原理图
 
233文档参见：
 
--
To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
(( 订阅 OpenBoard 邮件讨论组，编写主题为“订阅”的邮件发至 ope...@googlegroups.com ))



--
/***
 * @brief 启智开源 编码自由
 * @brief Open Source,  Coding for free!
 * @note English Name - Hugo Tong
 * @param author 佟辉 Tony Hui
 * @param email tong...@gmail.com
 * @param web http://tonghuix.tk
 */
--
To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
(( 订阅 OpenBoard 邮件讨论组，编写主题为“订阅”的邮件发至 ope...@googlegroups.com ))

--
To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
(( 订阅 OpenBoard 邮件讨论组，编写主题为“订阅”的邮件发至 ope...@googlegroups.com ))



--
/***
 * @brief 启智开源 编码自由
 * @brief Open Source,  Coding for free!
 * @note English Name - Hugo Tong
 * @param author 佟辉 Tony Hui
 * @param email tong...@gmail.com
 * @param web http://tonghuix.tk
 */
--
To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
(( 订阅 OpenBoard 邮件讨论组，编写主题为“订阅”的邮件发至 ope...@googlegroups.com ))

--
To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"

Orson Zhai

unread,
Sep 11, 2013, 2:01:46 PM9/11/13
to ope...@googlegroups.com
ѡ��LM2675�ĺô���ʲô��

On 2013��09��09�� 14:39, rj w wrote:
> ���Ӽ��γߴ�50x100mm
> 64MB DDR, USB,MiniSD card, DM9000AE, �� UART�ӿڣ�SRAM�ӿڵ����
> ����Ŀǰԭ��ͼ��Դ���ִ���ɣ�pcb�ߴ��װ����ɡ������ʱ����Կ���
> 233��Դ���֣�������νӿڱȽϺ��ʡ�����Ϊԭ ��ͼ
> 233�ĵ��μ�
> http://cache.freescale.com/files/dsp/doc/ref_manual/IMX23RM.pdf?fr=gdc
> http://www.freescale.com/zh-Hans/webapp/sps/site/prod_summary.jsp?code=i.MX233&tab=Documentation_Tab&pspll=1&SelectedAsset=Documentation&ProdMetaId=PID/DC/i.MX233&fromPSP=true&assetLockedForNavigation=true&componentId=2&leftNavCode=1&pageSize=25&Documentation=Documentation/00210KscRcb``Application
> <http://www.freescale.com/zh-Hans/webapp/sps/site/prod_summary.jsp?code=i.MX233&tab=Documentation_Tab&pspll=1&SelectedAsset=Documentation&ProdMetaId=PID/DC/i.MX233&fromPSP=true&assetLockedForNavigation=true&componentId=2&leftNavCode=1&pageSize=25&Documentation=Documentation/00210KscRcb%60%60Application>
> Notes&fpsp=1&linkline=Application Notes
> --
> To subscribe OpenBoard mailing list, send to ope...@googlegroups.com
> with subject as "subscribe"

tong hui

unread,
Sep 11, 2013, 2:06:20 PM9/11/13
to ope...@googlegroups.com
问个题外话，今天晚上有聚会么？

LM2675是为了稳压？


On Thu, Sep 12, 2013 at 3:01 AM, Orson Zhai <orso...@gmail.com> wrote:
选用LM2675的好处是什么？

On 2013年09月09日 14:39, rj w wrote:
> 板子几何尺寸50x100mm
> 64MB DDR, USB,MiniSD card, DM9000AE, 及 UART接口，SRAM接口的引出
> 板子目前原理图电源部分待完成，pcb尺寸封装基本完成。大家有时间可以看看
> 233电源部分，看下如何接口比较合适。附件为原 理图
> 233文档参见：
> <http://www.freescale.com/zh-Hans/webapp/sps/site/prod_summary.jsp?code=i.MX233&tab=Documentation_Tab&pspll=1&SelectedAsset=Documentation&ProdMetaId=PID/DC/i.MX233&fromPSP=true&assetLockedForNavigation=true&componentId=2&leftNavCode=1&pageSize=25&Documentation=Documentation/00210KscRcb%60%60Application>
> Notes&fpsp=1&linkline=Application Notes
> --
> To subscribe OpenBoard mailing list, send to ope...@googlegroups.com
> with subject as "subscribe"
> (( 订阅 OpenBoard 邮件讨论组，编写主题为“订阅”的邮件发至
> ope...@googlegroups.com ))

--
To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
(( 订阅 OpenBoard 邮件讨论组，编写主题为“订阅”的邮件发至 ope...@googlegroups.com ))

Orson Zhai

unread,
Sep 11, 2013, 2:38:32 PM9/11/13
to ope...@googlegroups.com
On 2013��09��12�� 02:06, tong hui wrote:
> �ʸ����⻰�����������оۻ�ô��
�ҽ�����ȥ�����һ�������ģ�

tong hui

unread,
Sep 11, 2013, 2:39:16 PM9/11/13
to ope...@googlegroups.com
好，我争取参加

On 9/12/13, Orson Zhai <orso...@gmail.com> wrote:
> On 2013年09月12日 02:06, tong hui wrote:
>> 问个题外话，今天晚上有聚会么？
> 我今晚想去，大家一起来聊聊？

wrj

unread,
Sep 12, 2013, 7:49:11 AM9/12/13
to ope...@googlegroups.com
为了稳压，比直接上LDO要好，插12V电也不会烧板子

发自我的 iPhone

在 2013-9-12，2:01，Orson Zhai <orso...@gmail.com> 写道：

> 选用LM2675的好处是什么？
>
> On 2013年09月09日 14:39, rj w wrote:
>> 板子几何尺寸50x100mm
>> 64MB DDR, USB,MiniSD card, DM9000AE, 及 UART接口，SRAM接口的引出
>> 板子目前原理图电源部分待完成，pcb尺寸封装基本完成。大家有时间可以看看
>> 233电源部分，看下如何接口比较合适。附件为原 理图
>> 233文档参见：
>> http://cache.freescale.com/files/dsp/doc/ref_manual/IMX23RM.pdf?fr=gdc
>> http://www.freescale.com/zh-Hans/webapp/sps/site/prod_summary.jsp?code=i.MX233&tab=Documentation_Tab&pspll=1&SelectedAsset=Documentation&ProdMetaId=PID/DC/i.MX233&fromPSP=true&assetLockedForNavigation=true&componentId=2&leftNavCode=1&pageSize=25&Documentation=Documentation/00210KscRcb``Application
>> <http://www.freescale.com/zh-Hans/webapp/sps/site/prod_summary.jsp?code=i.MX233&tab=Documentation_Tab&pspll=1&SelectedAsset=Documentation&ProdMetaId=PID/DC/i.MX233&fromPSP=true&assetLockedForNavigation=true&componentId=2&leftNavCode=1&pageSize=25&Documentation=Documentation/00210KscRcb%60%60Application>
>> Notes&fpsp=1&linkline=Application Notes
>> --
>> To subscribe OpenBoard mailing list, send to ope...@googlegroups.com
>> with subject as "subscribe"
>> (( 订阅 OpenBoard 邮件讨论组，编写主题为“订阅”的邮件发至
>> ope...@googlegroups.com ))
>
> --
> To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"

Airead

unread,
Sep 13, 2013, 11:06:17 AM9/13/13
to ope...@googlegroups.com
�� 2013/9/12 2:38, Orson Zhai �:
> On 2013��09��12�� 02:06, tong hui wrote:
>> �ʸ����⻰�����������оۻ�ô��
> �ҽ�����ȥ�����һ�������ģ�
>
��ʵ9��12����ȥ�ˣ�����������

Orson Zhai

unread,
Sep 13, 2013, 10:59:53 PM9/13/13
to ope...@googlegroups.com
����csdnԼ�����ԣ��Ҿ�ûȥ���

���������������ͣһ�Σ�������9��26�ջ����һ��ȥ������һ��imx233����
�����⡣
֮����ʮһ���ٻ��ͣһ�Σ��ٻ����10��10���ˡ�

Orson Zhai

unread,
Sep 15, 2013, 1:54:42 PM9/15/13
to ope...@googlegroups.com
����ͼ�ҿ���������ڲ���Դ�ܹ��ˡ�


On 2013��09��12�� 19:49, wrj wrote:
> Ϊ����ѹ����ֱ����LDOҪ�ã���12V��Ҳ�����հ���
>
> �����ҵ� iPhone
>
> �� 2013-9-12��2:01��Orson Zhai <orso...@gmail.com> ���
>
>> ѡ��LM2675�ĺô���ʲô��
>>
>> On 2013��09��09�� 14:39, rj w wrote:
>>> ���Ӽ��γߴ�50x100mm
>>> 64MB DDR, USB,MiniSD card, DM9000AE, �� UART�ӿڣ�SRAM�ӿڵ����
>>> ����Ŀǰԭ��ͼ��Դ���ִ���ɣ�pcb�ߴ��װ����ɡ������ʱ����Կ���
>>> 233��Դ���֣�������νӿڱȽϺ��ʡ�����Ϊԭ ��ͼ
>>> 233�ĵ��μ�
>>> http://cache.freescale.com/files/dsp/doc/ref_manual/IMX23RM.pdf?fr=gdc
>>> http://www.freescale.com/zh-Hans/webapp/sps/site/prod_summary.jsp?code=i.MX233&tab=Documentation_Tab&pspll=1&SelectedAsset=Documentation&ProdMetaId=PID/DC/i.MX233&fromPSP=true&assetLockedForNavigation=true&componentId=2&leftNavCode=1&pageSize=25&Documentation=Documentation/00210KscRcb``Application
>>> <http://www.freescale.com/zh-Hans/webapp/sps/site/prod_summary.jsp?code=i.MX233&tab=Documentation_Tab&pspll=1&SelectedAsset=Documentation&ProdMetaId=PID/DC/i.MX233&fromPSP=true&assetLockedForNavigation=true&componentId=2&leftNavCode=1&pageSize=25&Documentation=Documentation/00210KscRcb%60%60Application>
>>> Notes&fpsp=1&linkline=Application Notes
>>> --
>>> To subscribe OpenBoard mailing list, send to ope...@googlegroups.com
>>> with subject as "subscribe"
>>> (( ���� OpenBoard �ʼ������飬��д����Ϊ�����ġ����ʼ�����
>>> ope...@googlegroups.com ))
>> --
>> To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
选区_001.jpeg

xufan

unread,
Sep 15, 2013, 10:25:00 PM9/15/13
to ope...@googlegroups.com
�ҳ���ջ��������ܶࡣ�����չ��������ĺܿ죬ϣ��ܿ���Բ��뵱
�У�ʮ�� ʮ�Ż�����ȥ�μӡ�

rj w

unread,
Oct 17, 2013, 4:52:52 AM10/17/13
to ope...@googlegroups.com
电源部分画完了,省接口部分莲花插头&耳机座,接插件了


在 2013年9月16日上午10:25，xufan <brdx...@gmail.com>写道：
我出差刚回来，错过很多。不过看到进展到现在真的很快，希望很快可以参与当
中，十月 十号回来我去参加。



On 2013年09月16日 01:54, Orson Zhai wrote:
> 这张图我看明白他的内部电源架构了。

>
>
> On 2013年09月12日 19:49, wrj wrote:
>> 为了稳压，比直接上LDO要好，插12V电也不会烧板子
>>
>> 发自我的 iPhone
>>
>> 在 2013-9-12，2:01，Orson Zhai <orso...@gmail.com> 写道：
>>
>>> 选用LM2675的好处是什么？
>>>
>>> On 2013年09月09日 14:39, rj w wrote:
>>>> 板子几何尺寸50x100mm

>>>> 64MB DDR, USB,MiniSD card, DM9000AE, 及 UART接口，SRAM接口的引出
>>>> 板子目前原理图电源部分待完成，pcb尺寸封装基本完成。大家有时间可以看看
>>>> 233电源部分，看下如何接口比较合适。附件为原 理图
>>>> 233文档参见：
>>>> http://cache.freescale.com/files/dsp/doc/ref_manual/IMX23RM.pdf?fr=gdc
>>>> http://www.freescale.com/zh-Hans/webapp/sps/site/prod_summary.jsp?code=i.MX233&tab=Documentation_Tab&pspll=1&SelectedAsset=Documentation&ProdMetaId=PID/DC/i.MX233&fromPSP=true&assetLockedForNavigation=true&componentId=2&leftNavCode=1&pageSize=25&Documentation=Documentation/00210KscRcb``Application
>>>> <http://www.freescale.com/zh-Hans/webapp/sps/site/prod_summary.jsp?code=i.MX233&tab=Documentation_Tab&pspll=1&SelectedAsset=Documentation&ProdMetaId=PID/DC/i.MX233&fromPSP=true&assetLockedForNavigation=true&componentId=2&leftNavCode=1&pageSize=25&Documentation=Documentation/00210KscRcb%60%60Application>
>>>> Notes&fpsp=1&linkline=Application Notes
>>>> --
>>>> To subscribe OpenBoard mailing list, send to ope...@googlegroups.com
>>>> with subject as "subscribe"
>>>> (( 订阅 OpenBoard 邮件讨论组，编写主题为“订阅”的邮件发至
>>>> ope...@googlegroups.com ))
>>> --
>>> To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
>>> (( 订阅 OpenBoard 邮件讨论组，编写主题为“订阅”的邮件发至 ope...@googlegroups.com ))


--
To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
idmx1307.pdf

xufan

unread,
Oct 17, 2013, 4:56:33 AM10/17/13
to ope...@googlegroups.com
      ���ϻ����һ����

On 2013��10��17�� 16:52, rj w wrote:
��Դ���ֻ�����,ʡ�ӿڲ���������ͷ&�����,�Ӳ����


�� 2013��9��16������10:25��xufan <brdx...@gmail.com>д ����
�ҳ���ջ��������� �ࡣ�����չ��������ĺܿ죬ϣ��ܿ���Բ��뵱
�У�ʮ�� ʮ�Ż�����ȥ�μӡ�



On 2013��09��16�� 01:54, Orson Zhai wrote:
> ����ͼ�ҿ���������ڲ���Դ�ܹ��ˡ�
>
>
> On 2013��09��12�� 19:49, wrj wrote:
>> Ϊ����ѹ����ֱ����LDOҪ�ã���12V��Ҳ�����հ���
>>
>> �����ҵ� iPhone
>>
>> �� 2013-9-12��2:01��Orson Zhai <orso...@gmail.com> ���
>>
>>> ѡ��LM2675�ĺô���ʲô��
>>>
>>> On 2013��09��09�� 14:39, rj w wrote:
>>>> ���Ӽ��γߴ�50x100mm

>>>> 64MB DDR, USB,MiniSD card, DM9000AE, �� UART�ӿڣ�SRAM�ӿڵ����
>>>> ����Ŀǰԭ��ͼ��Դ���ִ���ɣ�pcb�ߴ��װ����ɡ������ʱ����Կ���
>>>> 233��Դ���֣�������νӿڱȽϺ��ʡ�����Ϊԭ ��ͼ
>>>> 233�ĵ��μ�
>>>> http://cache.freescale.com/files/dsp/doc/ref_manual/IMX23RM.pdf?fr=gdc
>>>> http://www.freescale.com/zh-Hans/webapp/sps/site/prod_summary.jsp?code=i.MX233&tab=Documentation_Tab&pspll=1&SelectedAsset=Documentation&ProdMetaId=PID/DC/i.MX233&fromPSP=true&assetLockedForNavigation=true&componentId=2&leftNavCode=1&pageSize=25&Documentation=Documentation/00210KscRcb``Application
>>>> <http://www.freescale.com/zh-Hans/webapp/sps/site/prod_summary.jsp?code=i.MX233&tab=Documentation_Tab&pspll=1&SelectedAsset=Documentation&ProdMetaId=PID/DC/i.MX233&fromPSP=true&assetLockedForNavigation=true&componentId=2&leftNavCode=1&pageSize=25&Documentation=Documentation/00210KscRcb%60%60Application>
>>>> Notes&fpsp=1&linkline=Application Notes
>>>> --
>>>> To subscribe OpenBoard mailing list, send to ope...@googlegroups.com
>>>> with subject as "subscribe"
>>>> (( ���� OpenBoard �ʼ������飬��д����Ϊ�����ġ����ʼ�����
>>>> ope...@googlegroups.com ))
>>> --
>>> To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
>>> (( ���� OpenBoard �ʼ������飬��д����Ϊ�����ġ����ʼ����� ope...@googlegroups.com ))


--
To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
(( ���� OpenBoard �ʼ������飬��д����Ϊ�����ġ����ʼ����� ope...@googlegroups.com ))

--
To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"

我

unread,
Oct 21, 2013, 6:12:26 AM10/21/13
to ope...@googlegroups.com


怎样用python  ftp模块 查看tfp服务器上的文件的 上传时间？



在 2013-10-17 16:56:33，xufan <brdx...@gmail.com> 写道：
      晚上会过来一起吗？


On 2013年10月17日 16:52, rj w wrote:
电源部分画完了,省接口部分莲花插头&耳机座,接插件了


在 2013年9月16日上午10:25，xufan <brdx...@gmail.com>写 道：
我出差刚回来，错过很 多。不过看到进展到现在真的很快，希望很快可以参与当
中，十月 十号回来我去参加。



On 2013年09月16日 01:54, Orson Zhai wrote:
> 这张图我看明白他的内部电源架构了。
>
>
> On 2013年09月12日 19:49, wrj wrote:
>> 为了稳压，比直接上LDO要好，插12V电也不会烧板子
>>
>> 发自我的 iPhone
>>
>> 在 2013-9-12，2:01，Orson Zhai <orso...@gmail.com> 写道：
>>
>>> 选用LM2675的好处是什么？
>>>
>>> On 2013年09月09日 14:39, rj w wrote:
>>>> 板子几何尺寸50x100mm
>>>> 64MB DDR, USB,MiniSD card, DM9000AE, 及 UART接口，SRAM接口的引出
>>>> 板子目前原理图电源部分待完成，pcb尺寸封装基本完成。大家有时间可以看看
>>>> 233电源部分，看下如何接口比较合适。附件为原 理图
>>>> 233文档参见：
>>>> http://cache.freescale.com/files/dsp/doc/ref_manual/IMX23RM.pdf?fr=gdc
>>>> http://www.freescale.com/zh-Hans/webapp/sps/site/prod_summary.jsp?code=i.MX233&tab=Documentation_Tab&pspll=1&SelectedAsset=Documentation&ProdMetaId=PID/DC/i.MX233&fromPSP=true&assetLockedForNavigation=true&componentId=2&leftNavCode=1&pageSize=25&Documentation=Documentation/00210KscRcb``Application
>>>> <http://www.freescale.com/zh-Hans/webapp/sps/site/prod_summary.jsp?code=i.MX233&tab=Documentation_Tab&pspll=1&SelectedAsset=Documentation&ProdMetaId=PID/DC/i.MX233&fromPSP=true&assetLockedForNavigation=true&componentId=2&leftNavCode=1&pageSize=25&Documentation=Documentation/00210KscRcb%60%60Application>
>>>> Notes&fpsp=1&linkline=Application Notes
>>>> --
>>>> To subscribe OpenBoard mailing list, send to ope...@googlegroups.com
>>>> with subject as "subscribe"
>>>> (( 订阅 OpenBoard 邮件讨论组，编写主题为“订阅”的邮件发至
>>>> ope...@googlegroups.com ))
>>> --
>>> To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
>>> (( 订阅 OpenBoard 邮件讨论组，编写主题为“订阅”的邮件发至 ope...@googlegroups.com ))


--
To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
(( 订阅 OpenBoard 邮件讨论组，编写主题为“订阅”的邮件发至 ope...@googlegroups.com ))

--
To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
(( 订阅 OpenBoard 邮件讨论组，编写主题为“订阅”的邮件发至 ope...@googlegroups.com ))

--
To subscribe OpenBoard mailing list, send to ope...@googlegroups.com with subject as "subscribe"
Reply all
Reply to author
Forward
0 new messages