LPC Microcontrollers中的主题 Re: Cannot clear SETUP bit for LPC55S69-EVK https://community.nxp.com/t5/LPC-Microcontrollers/Cannot-clear-SETUP-bit-for-LPC55S69-EVK/m-p/954308#M37883 <HTML><HEAD></HEAD><BODY><P>Hi Nicolas,</P><P></P><P>Can you please share how you are writing the 1 to these bits in the registers?</P><P></P><P>Best Regards,</P><P>Sabina</P></BODY></HTML> Wed, 09 Oct 2019 14:36:10 GMT Sabina_Bruce 2019-10-09T14:36:10Z Cannot clear SETUP bit for LPC55S69-EVK https://community.nxp.com/t5/LPC-Microcontrollers/Cannot-clear-SETUP-bit-for-LPC55S69-EVK/m-p/954307#M37882 <HTML><HEAD></HEAD><BODY><P>I am writing a USB device driver for USB0 FS on LPC55S69-EVK.</P><P></P><P>My problem is that, after receiving an initial SETUP token, I cannot clear the USB0.DEVCMDSTAT.SETUP bit (by writing a 1 to it). The SETUP bit remains set.</P><P>So far, in the manual and SDK sample code, I could not find any prerequisite to clearing the bit, is there anything I missed?</P><P></P><P>Incidentally, USB0.INTSTAT.DEV_INT and USB0.INTSTAT.EP0OUT are both also set, and I can also not clear those (by writing 1 to them).</P></BODY></HTML> Mon, 07 Oct 2019 22:20:37 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Cannot-clear-SETUP-bit-for-LPC55S69-EVK/m-p/954307#M37882 nickray 2019-10-07T22:20:37Z Re: Cannot clear SETUP bit for LPC55S69-EVK https://community.nxp.com/t5/LPC-Microcontrollers/Cannot-clear-SETUP-bit-for-LPC55S69-EVK/m-p/954308#M37883 <HTML><HEAD></HEAD><BODY><P>Hi Nicolas,</P><P></P><P>Can you please share how you are writing the 1 to these bits in the registers?</P><P></P><P>Best Regards,</P><P>Sabina</P></BODY></HTML> Wed, 09 Oct 2019 14:36:10 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Cannot-clear-SETUP-bit-for-LPC55S69-EVK/m-p/954308#M37883 Sabina_Bruce 2019-10-09T14:36:10Z Re: Cannot clear SETUP bit for LPC55S69-EVK https://community.nxp.com/t5/LPC-Microcontrollers/Cannot-clear-SETUP-bit-for-LPC55S69-EVK/m-p/954309#M37884 <HTML><HEAD></HEAD><BODY><P>This ended up being an unrelated issue.</P></BODY></HTML> Thu, 05 Dec 2019 12:56:13 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Cannot-clear-SETUP-bit-for-LPC55S69-EVK/m-p/954309#M37884 nickray 2019-12-05T12:56:13Z