Hi Hans, Can you share the schematic diagram for the 16F1455? I assume you used the standard sample program for the 16F1455.
Thanks. Kind regards, Rob ________________________________ Van: jallib@googlegroups.com <jallib@googlegroups.com> namens hans <hanze...@zeelandnet.nl> Verzonden: vrijdag 16 december 2022 14:20 Aan: jallib <jallib@googlegroups.com> Onderwerp: Re: [jallib] USB_help Hey , I have now received the 18F4550 and the 16F1455 and have tried both with the usb_serial samples. programming with PicKit_3, but in all cases I get a warning on my PC (both on win10 and win7) that the USB is not recognized. The Vusb with capacitor reads 3.3 volts and I have programmed both with and without LVP. identical to my previous attempts. Apparently USB is not allowed to me Hans Op woensdag 14 december 2022 om 14:19:16 UTC+1 schreef zet....@gmail.com: Hi Matt I see your question 10-12 now: Wednesday 14-12 I am not at home for 2 days. I can test. You hear as soon as possible. Regards Peter Van: jal...@googlegroups.com [mailto:jal...@googlegroups.com] Namens Matthew Schinkel Verzonden: zondag 11 december 2022 04:18 Aan: jallib <jal...@googlegroups.com> Onderwerp: Re: [jallib] USB_help Hi Hans, what chip is it working on? Is anyone else able to test the 18f4455 blink usb sample? On Saturday, December 10, 2022 at 1:18:39 PM UTC-5 hans wrote: Hello, I tested the sample 18f4455 Blink_hs_usb.jal. This one didn't work. Then I restarted Bert van Dam's old business and tried the same program on it. that works as it should.!!!! I have also tested ports D+ and D- (24 and 23) as inputs and those ports work as well. I now doubt whether the PIC is broken or something else is going on. regards Hans Op zaterdag 10 december 2022 om 10:30:14 UTC+1 schreef hans: Hello champs, I have reassembled everything and I can only conclude that the PIC itself (has done some things before) is defective. Unfortunately, I no longer have a PIC with USB, so I put it back in the fridge. I will have to look for another one but the market is scarce. Thanks again for your great responses. regards Hans Op zaterdag 10 december 2022 om 06:18:17 UTC+1 schreef vasile: Yep. Matt has right. 1.The clock speed is esential. 2. You will notice quite a long delay (5s or so) between plugging the pic usb and the moment when OS recognize it on pc. This depends by your computer speed and pic firmware contents. If pic clk is wrong, you will not see any usb device. After it appears, check on printer/pheripheral for your device but watch for any warnings there.... On Sat 10 Dec 2022, 4:59 AM Matthew Schinkel <mattsc...@hotmail.com wrote: Also use the code in 18f455_blink_hs_usb.jal You are missing this one: OSCCON_SCS = 0 -- select primary oscillator On Friday, December 9, 2022 at 9:54:43 PM UTC-5 Matthew Schinkel wrote: Hi Hans, There must be an issue with your circuit. Do you have the correct clock speed? Make sure a blink sample and normal serial port is working. Try another PC. Windows should pick it up. Matt. On Friday, December 9, 2022 at 3:12:12 PM UTC-5 hans wrote: Hello, Thank you. I did what you recommended. Last Bee and tip from Vasile. Same message from windows, not recognized and causing a malfunction. Pffffff/ regards Hans Op vrijdag 9 december 2022 om 18:43:24 UTC+1 schreef rob...@hotmail.com: Hi Hans, As Vasile already mentioned Windows 10 will detect your device as a serial (COM) port without the need of installing a separate driver. Make sure you have the USB connections right. The signals are not crossed like for USART, so D+ to D+ and D- to D-. I attached a schematic diagram based on the PIC16F1455 for your information and the USB connectors and what the signals look like. Good luck! Kind regards, Rob ________________________________ Van: jal...@googlegroups.com <jal...@googlegroups.com> namens vsurducan <vsur...@gmail.com> Verzonden: vrijdag 9 december 2022 18:12 Aan: jal...@googlegroups.com <jal...@googlegroups.com> Onderwerp: Re: [jallib] USB_help Hi Hans, for win10 you do not need any special driver, just a good terminal like Teraterm. Download the last jal package, Rob did some modifications on USB driver, my suggestion is to use const USB_INTERRUPT_DRIVEN = TRUE The maximum speed is about 100kbps. On Fri, Dec 9, 2022 at 5:42 PM hans <hanz...@zeelandnet.nl> wrote: Hello, I am trying to learn more about USB and have tried a sample program( ex 18F2450) (see attachment) I keep getting the remark that windows 10 does not recognize the connection and cannot install the driver. What am I doing wrong?? regards Hans -- You received this message because you are subscribed to the Google Groups "jallib" group. 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