AMICCOM A7121 3Mbps Direct Mode Reference Code

A7121
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本资源是一份AMICCOM提供的A7121 RF Chip的示例程序文档，标题为"A7121 Reference Code for Direct Mode (3Mbps)"，发布日期为2009年6月，版本为0.0。这份文档详细介绍了A7121芯片在3Mbps直接模式下的参考代码，由AMIC Communication Corporation编写。该芯片适用于无线通信应用，支持高速数据传输，设计用于3Mbps的数据速率。 文档首先提到了修订历史，展示了从初始发行到当前版本的更新情况，并提醒用户AMICCOM保留在不通知的情况下对产品进行更改或停止服务的权利。特别强调了芯片并非设计用于生命支持系统或关键应用，用户自行承担在这些高风险领域的使用风险。 文档的主体内容分为多个章节，包括： 1. 1.1 - Introduction: 这部分可能是对A7121芯片的基本介绍，包括其功能、特点以及在直接模式下工作原理的概述。 2. 2. Bangla Fonts...: 这里可能涉及到代码中使用的特定语言或字符集，可能是为了适应多种地区用户的需求，比如孟加拉语字符。 3. 3. FIFO (First-In-First-Out) Mode: 该部分详细讨论了FIFO模式，这是数据处理的一种常见机制，对于高速串行通信如3Mbps十分重要，它能有效管理数据流，确保数据按顺序接收和发送。 4. 4. TX (Transmission) and RX (Reception) Commands: 在这部分，详细列出了芯片的传输（TX）和接收（RX）指令，包括设置参数、初始化流程和错误检测机制等。 5. 4.2 - ASHMITA (某种编程接口或协议) Implementation: 这个部分可能介绍了如何通过ASHMITA接口来操作A7121芯片，该接口允许开发者与芯片进行高效交互。 6. 4.3 - Data Transmission and Reception Techniques: 详细解释了数据的编码、解码以及在3Mbps速率下的实际传输策略，可能涉及帧结构、同步和错码纠正方法。 7. 4.4 - GPIO (General Purpose Input/Output) Configuration: GPIO配置是关键部分，可能介绍了如何利用A7121的通用输入输出引脚进行外部设备控制。 8. 5. Protocol Stack and Low-Level Functions: 最后一部分可能涵盖了整个通信协议栈，包括底层驱动程序和高层应用接口，确保芯片与上层软件的无缝集成。 这份文档为A7121芯片在3Mbps直接模式下的开发人员提供了宝贵的参考，无论是硬件配置还是软件接口，都提供了详尽的指导。开发者可以根据这份文档快速理解和实施A7121芯片的相关功能。

A7121配置说明及使用方法

2010-03-18 上传
AMICCON 公司的 A7121/A7122 2。4GHZ GFSK TRANSCEIVER

Modern Code Review- A Case Study at Google.pdf

2019-08-15 上传
Employing lightweight, tool-based code review of code changes (aka modern code review) has become the norm for a wide variety of open-source and industrial systems. In this paper, we make an ...

Bare-metal Boot Code for ARMv8-A Processors

2018-05-29 上传
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SELECT a.id, a.name, a.code1 AS code1, a.code2, a.code3, a.provider, a.create_time, a.parent_id, b.NAME AS parentName, b.provider AS parentProvider, b.code1 AS parentCode1, b.type AS parentType, FROM device a left Join device b on a.parent_id=b.id WHERE a.is_deleted=0 AND a.type=51 这句sql有什么问题

2023-06-08 上传
SELECT a.id, a.name, a.code1 AS code1, a.code2, a.code3, a.provider, a.create_time, a.parent_id, b.NAME AS parentName, b.provider AS parentProvider, b.code1 AS parentCode1, b.type AS parentType FROM ...

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2023-06-02 上传
INNER JOIN AppointmentDetail ad ON a.Code = ad.MasterCode INNER JOIN InspectionItemDetail d ON ad.ItemCode = d.Code INNER JOIN HisBillInfo h ON ad.HisKey = h.ItemId LEFT OUTER JOIN PartName pn ON ad....

写一段mysql 的触发器代码 更新表A的code字段后，更新表B的code字段值=表A的code 字段,事务更新。表A和表B 的关联字段为 id

2023-04-25 上传
下面是一段 MySQL 触发器代码，用于更新表 A 的 code 字段后，更新表 B 的 code 字段为表 A 的 code 字段值，并进行事务更新。表 A 和表 B 的关联字段为 id。 DELIMITER $$ CREATE TRIGGER updateBTrigger AFTER ...

select substr(a.create_time,1,10) as 'create_time', a.tracking_id, a.purchase_order_number, b.code_description, c.port_code, c.return_desc, case when a.kyc_flag = '1' then 'Global store' else 'Core export' end as 'customer',a.service_level,'ECMS' as 'clearance_company', (case when a.reason_code = '18' then concat(b.code_description,'/',ifnull(c.port_code,'')) when a.reason_code = '51' then concat(b.code_description,'/',ifnull(c.return_desc,'')) else b.code_description end ) as 'reason_description', a.accumulated_days, a.consignee_name, a.consignee_phone from temp_daily_report_amazon_abnormal_hawb a join dw_code_info b on a.reason_code = b.code_id and b.code_flag = 'daily_report_amazon_abnormal' left join ecms_dws.dws_hawb_base c on a.tracking_id = c.tracking_id where a.create_time = UTC_DATE() and (a.accumulated_days >='2' or a.accumulated_days is null) having 1 order by a.accumulated_days desc,b.priority

2023-07-14 上传
- `(case when a.reason_code = '18' then concat(b.code_description,'/',ifnull(c.port_code,'')) when a.reason_code = '51' then concat(b.code_description,'/',ifnull(c.return_desc,'')) else b.code_...

表A：A_ID,A_CODE 表B：B_ID,B_STATE,B_CODE,B_LOT 联表查询 统计表A的ID记录数，A_CODE=B_CODE，统计表B的B_LOT去重后B_LOT数量，统计B_LOT去重后B_STATE=0，B_LOT去重后B_STATE=1数量，B_STATE可能为空或者null，mysql的sql如何表示

2023-07-13 上传
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2023-05-22 上传
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select a.InsuredAddressCountry, a.insuredaddressstate, a.insuredaddresscity, a.insuredaddressdistrict, a.policyno, c.countrycode as 国家, c.regioncode as 省, c.area as 市， c.clientdistrict 区县, a.endorseqno, a.insuredcode, a.insuredtype from guPolicyCopyRelatedParty a, GSClientCorporate c where (((a.insuredaddresscity is not null and a.insuredaddressstate is not null and (select b.upperareacode from ggcountry b where b.countrycode = a.insuredaddresscity and b.arealevel = '3' and b.upperareacode = a.insuredaddressstate) is null) or (a.insuredaddressstate is not null and a.insuredaddresscountry is not null and (select b.upperareacode from ggcountry b where b.countrycode = a.insuredaddressstate and b.arealevel = '2' and b.upperareacode = a.insuredaddresscountry) is null) or (a.insuredaddressdistrict is not null and a.insuredaddresscity is not null and (select b.upperareacode from ggcountry b where b.arealevel = '4' and b.countrycode = a.insuredaddressdistrict and b.upperareacode = a.insuredaddresscity) is null)) or (a.insuredaddresscountry is null and (a.insuredaddressstate is not null or a.insuredaddresscity is not null or a.insuredaddressdistrict is not null)) or (a.insuredaddresscity is not null and a.insuredaddressstate is null) or (a.insuredaddressdistrict is not null and (a.insuredaddressstate is null or a.insuredaddresscity is null))) and a.insuredtype in ('2', '4') and a.insuredcode = c.clientcode order by a.insuredaddresscountry,a.insuredaddressstate,a.insuredaddresscity,a.insuredaddressdistrict; 此sql如何根据where后的条件进行判断给自定义的返回结果赋值

2023-06-10 上传
SELECT a.InsuredAddressCountry, a.insuredaddressstate, a.insuredaddresscity, a.insuredaddressdistrict, a.policyno, c.countrycode as 国家, c.regioncode as 省, c.area as 市, c.clientdistrict as 区县, a....
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