![]() ![]() ![]() The argument ipaddr points to the buffer that stores. The argument addrtype specifies if the address to be converted is IPv4 or IPv6. The argument addrstring specifies the ASCII representation of the IP address. As you will find later, although they look cumbersome, they have many advantages at the development stage of software writing (especially when trying to locate errors in the code). The function netIPaton converts an ASCII to a network address. Machine code and assembly code are examples of low-level languages and are used by software developers when producing, for example, computer games. Here is a simple example:Ī5E4 FFA4 (machine code using hexadecimal values)ġ010 0101 1110 0100 1111 1111 1010 0100 (machine code using binary) The use of the MAC address is one of the most important aspects of the Ethernet LAN technology. It is also very easy to mistype the digits in a ‘sea of 1s and 0s’. By convention, these addresses are usually written in one of the following. Using true machine code (which uses binary) is very cumbersome and it takes a long time to key in the values. Traditional MAC addresses are 12-digit (6 bytes or 48 bits) hexadecimal numbers. Using hexadecimal makes it much easier, faster and less error prone to write code compared to binary. This can have many advantages to program developers or when carrying out troubleshooting. Machine code and assembly code are covered in much more detail later on in the course, but they are essentially low-level languages that directly access the memory chips in the computer here we are simply interested in how hexadecimal fits into the picture. int, hexstr2bin (const char hex, u8 buf, sizet len) Convert ASCII hex string into binary data. It expects a uint8 pointer to mac address, which means the way you wrote it is not going to work (returning pointer to local variable etc).Computer memory can be referred to directly using machine code or assembly code. ![]() Your code doesn't seem to be compatible with wifi_set_macaddr (I looked up API documentation). ![]()
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