LPC Microcontrollers中的主题 LPC1768 Chain programming issue, in uVision using SEGGER https://community.nxp.com/t5/LPC-Microcontrollers/LPC1768-Chain-programming-issue-in-uVision-using-SEGGER/m-p/521826#M4462 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by rsameni on Mon Dec 02 12:26:44 MST 2013</STRONG><BR /><SPAN>Hi,</SPAN><BR /><BR /><SPAN>I have customized board with two LPC1768, which pass data to each other via SPI. The problem I have is with their JTAG chain programming. When I program one of them the other one is also (usually) programmed; but the behavior is not very deterministic. I have all the recommended pull-ups and pull-downs required on the JTAG wires and the two MCU work with the same clock oscillator. Therefore, no additional seems to be required. I use the uVision Keil software + SEGGER for programming. SEGGER detects both devices on the chain and doesn't give any errors when I program them.</SPAN><BR /><BR /><SPAN>I've seen a rather old post on this, which was unanswered on SEGGER's forum: </SPAN><A href="http://http://forum.segger.com/index.php?page=Thread&amp;postID=5104#post5104">JTAG chain - 3 LPC1768 on board</A><BR /><BR /><SPAN>Does anyone have a clue? Is there any special software setting required? </SPAN><BR /><BR /><SPAN>Thanks!</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:52:07 GMT lpcware 2016-06-15T17:52:07Z LPC1768 Chain programming issue, in uVision using SEGGER https://community.nxp.com/t5/LPC-Microcontrollers/LPC1768-Chain-programming-issue-in-uVision-using-SEGGER/m-p/521826#M4462 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by rsameni on Mon Dec 02 12:26:44 MST 2013</STRONG><BR /><SPAN>Hi,</SPAN><BR /><BR /><SPAN>I have customized board with two LPC1768, which pass data to each other via SPI. The problem I have is with their JTAG chain programming. When I program one of them the other one is also (usually) programmed; but the behavior is not very deterministic. I have all the recommended pull-ups and pull-downs required on the JTAG wires and the two MCU work with the same clock oscillator. Therefore, no additional seems to be required. I use the uVision Keil software + SEGGER for programming. SEGGER detects both devices on the chain and doesn't give any errors when I program them.</SPAN><BR /><BR /><SPAN>I've seen a rather old post on this, which was unanswered on SEGGER's forum: </SPAN><A href="http://http://forum.segger.com/index.php?page=Thread&amp;postID=5104#post5104">JTAG chain - 3 LPC1768 on board</A><BR /><BR /><SPAN>Does anyone have a clue? Is there any special software setting required? </SPAN><BR /><BR /><SPAN>Thanks!</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:52:07 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC1768-Chain-programming-issue-in-uVision-using-SEGGER/m-p/521826#M4462 lpcware 2016-06-15T17:52:07Z