Differences
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| interfaces:ch340g [2017/01/11 22:57] – [RS485] darron | interfaces:ch340g [2021/08/11 11:08] (current) – [Resources] darron | ||
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| ==== Nanjing QinHeng Electronics CH340 ==== | ==== Nanjing QinHeng Electronics CH340 ==== | ||
| <wrap right> | <wrap right> | ||
| - | {{: | + | {{: |
| + | \\ \\ | ||
| + | {{: | ||
| </ | </ | ||
| Line 54: | Line 56: | ||
| / | / | ||
| </ | </ | ||
| - | udev by-id is not supported by Pickle Microchip PIC ICSP. | + | |
| === Pickle Microchip PIC ICSP === | === Pickle Microchip PIC ICSP === | ||
| Line 70: | Line 72: | ||
| The .pickle configuration for the CH340 is this. | The .pickle configuration for the CH340 is this. | ||
| < | < | ||
| - | DEVICE=/ | + | DEVICE=TTY |
| + | IFACE=/ | ||
| SLEEP=600 | SLEEP=600 | ||
| BITRULES=0x001F | BITRULES=0x001F | ||
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| Cheap RS485 adapters exist using both this chip and a fake version of this chip. | Cheap RS485 adapters exist using both this chip and a fake version of this chip. | ||
| - | The real chip is a CH340G with 16 pins and the fake chip has 24 pins in an unmarked package. The top 20 pins of the fake match those of a genuine CH340R or CH340T device which is only available | + | The real chip is a CH340G with 16 pins and the fake chip has 24 pins in an unmarked package. The top 20 pins of the fake match those of a genuine CH340R or CH340T device which is only available |
| The RS485 I/O stage varies slightly between the real and fake adapters and is constructed like this for the CH340G device. | The RS485 I/O stage varies slightly between the real and fake adapters and is constructed like this for the CH340G device. | ||
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| [[http:// | [[http:// | ||
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| + | [[http:// | ||
