CN205540693U - Use SD card to carry out embedded software online upgrade's device - Google Patents
Use SD card to carry out embedded software online upgrade's device Download PDFInfo
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- CN205540693U CN205540693U CN201620144794.3U CN201620144794U CN205540693U CN 205540693 U CN205540693 U CN 205540693U CN 201620144794 U CN201620144794 U CN 201620144794U CN 205540693 U CN205540693 U CN 205540693U
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- card
- microprocessor
- embedded software
- flash
- carry out
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Abstract
The utility model discloses an use SD card to carry out embedded software online upgrade's device, include: microprocessor, the SDRAM memory, SD card connector, the SD card, the integrated CPU of microprocessor, flash, SD controller, microprocessor passes through parallel bus with the SDRAM memory and is connected, and microprocessor crosses SD card connector with the SD cartoon and is connected to carry out the communication by the SD controller. Compared with the prior art, the utility model, have following characteristics: 1, not needing the dismouting instrument, using manpower sparingly, material resources, time, the secondary of effectively avoiding arousing because of the dismouting damages. 2, embedded software itself does not contain erasable flash's code, guarantees that flash can not be erasable by the mistake, possesses higher security. 3, the procedure is written into RAM in advance, even abnormal event such as take place in the escalation process that the SD card damages, pulls out can not influence fever record process yet, possesses higher reliability.
Description
Technical field
This utility model relates to embedded software upgrading field, and a kind of SD of use card carries out the device of embedded software online upgrading.
Background technology
Embedded software is the software agent of intelligence instrument, multifunction along with intelligence instrument, being improved by upgrading embedded software or increase function and become universal, upgrading embedded software is necessary for wiping the Flash of storage embedded software then re-writing new software.
At present, typically require and intelligence instrument is pulled down from site of deployment, and need to take intelligence instrument apart, even need that intelligence instrument is returned genuine and just can carry out the upgrading of embedded software, which results in human and material resources and temporal waste, and the process dismounted easily causes secondary damage.
The method of general online upgrading is required for using special upgrading tool and upgrading software, and the requirement to user is higher.
Utility model content
In order to solve above-mentioned technical problem present in prior art, this utility model offer one need not dismount instrument, need not special tool(s) and software, updated the simple, reliable, safe online embedded software update device of embedded software by the SD card of instrument, concrete technical scheme is as follows:
A kind of SD of use card carries out the device of embedded software online upgrading, including: microprocessor, SDRAM memory, SD card connector, SD card, described microprocessor integrated CPU, Flash, SD controller, described microprocessor is connected by parallel bus with SDRAM memory, microprocessor is connected by SD card connector with SD card, and is carried out communication by SD controller.
This utility model compared with prior art, has the following characteristics that 1, need not dismount instrument, save human and material resources, time, be prevented effectively from the secondary damage caused because of dismounting.2, embedded software itself does not comprise the code of Flash erase/write, it is ensured that Flash will not be erased and written by mistake, and possesses higher safety.3, program is pre-loaded into RAM, even if occurring SD card to damage, the anomalous event such as pull out in escalation process, also not interfering with burning process, possessing higher reliability.
Accompanying drawing explanation
Fig. 1 is the system block diagram that use SD card of the present utility model carries out the device of embedded software online upgrading.
Fig. 2 is the flow chart of this utility model online updating embedded software.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, the device that use SD card of the present utility model carries out embedded software online upgrading includes: microprocessor 1, SDRAM memory 2, SD card connector 3, SD card 4, the integrated CPU of microprocessor 15, Flash 6, SD controller 7, microprocessor 1 is connected by parallel bus with SDRAM memory 2, microprocessor 1 is connected by SD card connector 3 with SD card 4, and is carried out communication by SD controller 7.
Described microprocessor 1 uses STM32F429BIT6 chip, SDRAM memory 2 uses the SDRAM memory of IS42S16160C-7TLI, Flash 6 uses the flash storage with IAP function that STM32F429BIT6 is integrated, SD controller 7 uses SD controller module integrated for STM32F429BIT6, SD card connector 3 is the SD card connector of standard, and SD card 4 is the SD card of standard.
When this utility model updates embedded software, device starts and updates, more new procedures reads bootstrap and new procedures file in SDRAM memory 2 from SD card 4, then CPU 5 redirects the bootstrap performed in SDRAM memory 2, bootstrap contains erasing Flash and the code of write Flash, make in this way, the code of erasing Flash and write Flash does not appears in properly functioning embedded software, can avoid because program fleet causes erasing by mistake or the situation of write by mistake, then new procedures file can be written in Flash by bootstrap, after new procedures file has write, instrument will run the embedded software after updating, embedded software has updated.
Claims (1)
1. one kind uses the device that SD card carries out embedded software online upgrading, including: microprocessor (1), SDRAM memory (2), SD card connector (3), SD card (4), it is characterized in that: described microprocessor (1) integrated CPU(5), Flash(6), SD controller (7), described microprocessor (1) is connected by parallel bus with SDRAM memory (2), microprocessor (1) is connected by SD card connector (3) with SD card (4), and is carried out communication by SD controller (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620144794.3U CN205540693U (en) | 2016-02-26 | 2016-02-26 | Use SD card to carry out embedded software online upgrade's device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620144794.3U CN205540693U (en) | 2016-02-26 | 2016-02-26 | Use SD card to carry out embedded software online upgrade's device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205540693U true CN205540693U (en) | 2016-08-31 |
Family
ID=56779020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620144794.3U Expired - Fee Related CN205540693U (en) | 2016-02-26 | 2016-02-26 | Use SD card to carry out embedded software online upgrade's device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205540693U (en) |
-
2016
- 2016-02-26 CN CN201620144794.3U patent/CN205540693U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |