LPC5512 UART0 ISP下载

[tangliyusky1]

你好：

      请教一个问题，我使用FLash magic通过UART0下载程序（PIO0_5/TDI接地，上电重启），连接不上芯片。不知道问题出在哪？

[tangliyusky1]

Hi Rong

    波特率改为115200，也是不行（下载文件.hex）,提示“LPC5512（LPC5500) Unable to communicate.(transmit/receive)”。串口调试助手发送十六进制“5A A6”，能收到回复“5A A7 00 03 01 50 00 00 FB 40”。Flash Magic也是最新版本13.00。

[xiangjun_rong]

Hi, Tang，

请检查一下， LPC5512是否进入ISP mode.

BR

XiangJun Rong

[xiangjun_rong]

Hi, Tang,

Pls try to use 115200 baudrate, what is result?

BTW, pls try to download *.hex or *.bin file, which can be generated by the MCUXpresso tools

If you still have issue, pls update the ticket.

BR

Xiangjun Rong

[xiangjun_rong]

Hi,

I have tested to use LPC55S69-EVK to download code via flash magic, no problem.

Pls follow up the procedures to download application code to on-chip flash

1)Pressing and holding the ISP hardware button, then connect the USB cable to the Debug Link USB connector so that you can power on the board, then release the ISP button, the LPC55S69 will enter ISP mode.

2)follow up the screenshot and download code.

3)power off and power on, the LED will toggle.

Hope it can help you

BR

XiangJun Rong