topic 5275 USB device initialization in ColdFire/68K Microcontrollers and Processors https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/5275-USB-device-initialization/m-p/128164#M592 <HTML><HEAD></HEAD><BODY><DIV>I'm having a problem initializing the USB device for the 5275.&nbsp; Following the steps in the reference manual,</DIV><DIV>I first configured GPIO for USB.</DIV><DIV>Then I issued a device reset.</DIV><DIV>I downloaded the stringBufs, CfgBufs and EpBufs(one EpBufs per logical endpoint, total of 4).&nbsp; After downloading these, I wait for the USB_DAR[CFG] bit to clear, and it never does!!&nbsp;</DIV><DIV>Any help would be appreciated, I'm pretty desperate at this point!&nbsp; BTW, I'm using the 5275 eval board.</DIV></BODY></HTML> Fri, 25 Aug 2006 02:47:32 GMT ahjort 2006-08-25T02:47:32Z 5275 USB device initialization https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/5275-USB-device-initialization/m-p/128164#M592 <HTML><HEAD></HEAD><BODY><DIV>I'm having a problem initializing the USB device for the 5275.&nbsp; Following the steps in the reference manual,</DIV><DIV>I first configured GPIO for USB.</DIV><DIV>Then I issued a device reset.</DIV><DIV>I downloaded the stringBufs, CfgBufs and EpBufs(one EpBufs per logical endpoint, total of 4).&nbsp; After downloading these, I wait for the USB_DAR[CFG] bit to clear, and it never does!!&nbsp;</DIV><DIV>Any help would be appreciated, I'm pretty desperate at this point!&nbsp; BTW, I'm using the 5275 eval board.</DIV></BODY></HTML> Fri, 25 Aug 2006 02:47:32 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/5275-USB-device-initialization/m-p/128164#M592 ahjort 2006-08-25T02:47:32Z Re: 5275 USB device initialization https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/5275-USB-device-initialization/m-p/128165#M593 <HTML><HEAD></HEAD><BODY><DIV>Im working on the same board and i noticed that you were downloading the configuration data before you wait for the USB_DAR[CFG] to assert, I wanted to know if you ever got the initilization to work because thats what im in the process of doing.</DIV></BODY></HTML> Thu, 19 Oct 2006 02:10:27 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/5275-USB-device-initialization/m-p/128165#M593 AWattsMicrium 2006-10-19T02:10:27Z