topic DFU supported with LPC1857 And IAP Command Code 57 (Reinvoke ISP)? in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/DFU-supported-with-LPC1857-And-IAP-Command-Code-57-Reinvoke-ISP/m-p/525668#M8304 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by shansohn on Wed Dec 12 14:29:06 MST 2012</STRONG><BR /><SPAN>I have an LPC1857 device that only supports firmware upgrade via USB0/DFU (hardwired per Table 13 of UM10430).</SPAN><BR /><BR /><SPAN>I'd like the application code to reinvoke ISP USB0/DFU on user command to upgrade firmware.</SPAN><BR /><BR /><SPAN>Q1: Can the Reinvoke ISP (IAP code 57) be used for this, or will that only support ISP via UART0?</SPAN><BR /><BR /><SPAN>Q2: If not, how would I reset the device so it enumerates back as a DFU-mode device. (e.g. invalidate the currently running flash bank so that ISP USB0/DFU mode will be run on the next device reset?)</SPAN></BODY></HTML> Wed, 15 Jun 2016 18:15:38 GMT lpcware 2016-06-15T18:15:38Z DFU supported with LPC1857 And IAP Command Code 57 (Reinvoke ISP)? https://community.nxp.com/t5/LPC-Microcontrollers/DFU-supported-with-LPC1857-And-IAP-Command-Code-57-Reinvoke-ISP/m-p/525668#M8304 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by shansohn on Wed Dec 12 14:29:06 MST 2012</STRONG><BR /><SPAN>I have an LPC1857 device that only supports firmware upgrade via USB0/DFU (hardwired per Table 13 of UM10430).</SPAN><BR /><BR /><SPAN>I'd like the application code to reinvoke ISP USB0/DFU on user command to upgrade firmware.</SPAN><BR /><BR /><SPAN>Q1: Can the Reinvoke ISP (IAP code 57) be used for this, or will that only support ISP via UART0?</SPAN><BR /><BR /><SPAN>Q2: If not, how would I reset the device so it enumerates back as a DFU-mode device. (e.g. invalidate the currently running flash bank so that ISP USB0/DFU mode will be run on the next device reset?)</SPAN></BODY></HTML> Wed, 15 Jun 2016 18:15:38 GMT https://community.nxp.com/t5/LPC-Microcontrollers/DFU-supported-with-LPC1857-And-IAP-Command-Code-57-Reinvoke-ISP/m-p/525668#M8304 lpcware 2016-06-15T18:15:38Z