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This post was last edited by freebsder on 2017-12-5 15:31 I am very happy to have the opportunity to review the XMC4700, a relatively new 32-bit ARM product line from Infineon. As an independent brand from Siemens, Infineon is not an electronics company with a long history. However, it has formed a production line with initial monopoly characteristics in the competition by virtue of its precise market positioning and its core technology, such as power devices, C166/TriCore series of microprocessors for industrial and automotive industries. However, ARM Cortex core has been continuously strengthened by the industry due to its openness, and more and more manufacturers have used it as an expansion of mid- and low-end production lines. The way of heaven in Chinese research emphasizes "momentum", so Infineon is no exception. The downside is that Cortex has eaten into the mid- and low-end markets, making these products similar; however, the upside is that the low price of Cortex has made the functions of products on the high-end production line in the past (even more powerful functions after upgrading) now accessible to engineers at a very low cost. This XMC4700 Relax 5V shield is such a product. Infineon's quality + Infineon's device functions + JLINK OB simulator = 105RMB tax-inclusive entry price. My God, a portion of twice-cooked pork costs 25 yuan today, and this price is not enough for a few bites of meat. At first glance, it looks very good, with a full red base with black and white plaid, and gold and green embellishments, making the style look luxurious and stable.
It is easy to see the fashion theme that the designer wants to express: Low Price. Infineon hopes to bring a powerful development board that every engineer, including students, can afford. Carefully learn the high technology brought by Infineon, break the high-price entry barriers, go deep into the industry, innovate products, win the chicken and marry a rich and beautiful woman. This time I got the 5V version, which does not have network, storage, SD and other components welded. The biggest feature is that it has two more level devices welded than the ￥105 entry version, and the price is almost ￥90 more, including tax. The price is ￥193. Similarly, the full-featured version with network, storage, SD and other components welded on has a tax-inclusive price of ￥263. (The above prices are from public third-party agents) Quote from the water friend Silk Brother: There are so many versions for an entry-level development board (there are horror expressions x 5 combos here). The 193 version evaluated in this review has the following functions:
If students or friends who have just entered the industry want to choose between the 193 version and the 105 version, I recommend the 105 version. The price difference between the two is almost enough to buy a complete Arduino China licensed version, and the actual functions of the two are almost the same. Including some examples, a user manual, and a forum for users to ask questions. (The forum homepage is directly embedded in the product page. This is the first time I have seen such a combination of design, but it is very intuitive.) There is also a complete Eagle project for the board, and a complete Eagle project for the EtherCAT expansion board. EtherCAT Industrial Ethernet is the main function of xmc4800/xmc4300. Unfortunately, the xmc4700 in this review does not have this function. It is quite interesting that it contains all the device libraries used in the board design. It provides a lot of original design for the project, and the libraries are also provided, which is quite interesting. This engineering work itself is a good learning material. The following are the whole board, top layer, second layer VDDx, third layer GND, and bottom layer. And the schematic diagram The principle is not complicated, there is nothing particularly tricky, this project is so easy for many experienced engineers. easy, I won't teach you how to do it. If you don't understand something, you should continue to learn the basics instead of turning on the power. It is worth mentioning that From the symbol pattern of the library, it can be seen that this is a conscientious work, such as the segmentation graphics of the functional area in the MCU, rj45, switch, boarder graphics, layout, etc. Regardless of the work, the attitude is very careful and rigorous, which is a national advantage and worth learning. The only difference between the 105 and 193 versions is the following parts Two sets of switches and two sets of level conversion. Look carefully at the pcb You can only get one of the two. But why don't you use a dial or jumper for that set of 0 ohm switches? At least you don't need to buy a resistor array or a soldering iron. I personally think this is something that beginners can consider. In addition, 0402 devices and bottom pad devices also add some hands-on difficulty to DIY manual purchase, soldering, and repair of devices. I personally think this is also a place that beginners can consider. So, if you have money to choose from 105, 193, and 263, I suggest that you go directly to 263, and if you can buy devices and have the skills, go to 105. Since the other EtherCAT expansion board is not supported by xmc4700, you can learn it by yourself if you are interested. Soldering iron, please have chicken tonight! This content was created by freebsder, a netizen of EEWORLD forum. If you need to reprint or use it for commercial purposes, you must obtain the author's consent and indicate the sourceeasy, I won't teach you how to do it. If you don't understand something, you should continue to learn the basics instead of turning on the power. It is worth mentioning that From the symbol pattern of the library, it can be seen that this is a conscientious work, such as the segmentation graphics of the functional area in the MCU, rj45, switch, boarder graphics, layout, etc. Regardless of the work, the attitude is very careful and rigorous, which is a national advantage and worth learning. The only difference between the 105 and 193 versions is the following parts Two sets of switches and two sets of level conversion. Look carefully at the pcb You can only get one of the two. But why don't you use a dial or jumper for that set of 0 ohm switches? At least you don't need to buy a resistor array or a soldering iron. I personally think this is something that beginners can consider. In addition, 0402 devices and bottom pad devices also add some hands-on difficulty to DIY manual purchase, soldering, and repair of devices. I personally think this is also a place that beginners can consider. So, if you have money to choose from 105, 193, and 263, I suggest that you go directly to 263, and if you can buy devices and have the skills, go to 105. Since the other EtherCAT expansion board is not supported by xmc4700, you can learn it by yourself if you are interested. Soldering iron, please have chicken tonight! This content was created by freebsder, a netizen of EEWORLD forum. If you need to reprint or use it for commercial purposes, you must obtain the author's consent and indicate the sourceeasy, I won't teach you how to do it. If you don't understand something, you should continue to learn the basics instead of turning on the power. It is worth mentioning that From the symbol pattern of the library, it can be seen that this is a conscientious work, such as the segmentation graphics of the functional area in the MCU, rj45, switch, boarder graphics, layout, etc. Regardless of the work, the attitude is very careful and rigorous, which is a national advantage and worth learning. The only difference between the 105 and 193 versions is the following parts Two sets of switches and two sets of level conversion. Look carefully at the pcb You can only get one of the two. But why don't you use a dial or jumper for that set of 0 ohm switches? At least you don't need to buy a resistor array or a soldering iron. I personally think this is something that beginners can consider. In addition, 0402 devices and bottom pad devices also add some hands-on difficulty to DIY manual purchase, soldering, and repair of devices. I personally think this is also a place that beginners can consider. So, if you have money to choose from 105, 193, and 263, I suggest that you go directly to 263, and if you can buy devices and have the skills, go to 105. Since the other EtherCAT expansion board is not supported by xmc4700, you can learn it by yourself if you are interested. Soldering iron, please have chicken tonight! This content was created by freebsder, a netizen of EEWORLD forum. If you need to reprint or use it for commercial purposes, you must obtain the author's consent and indicate the source
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