cicamrgoba

Hello nopdotcom I 'm working an a new IMXRT board, I' ve already have some boards with JTAG port available (without MKL chip) I want to prrogram IMXRT chip using openOCD, can you check my schematic to see if this is possible? Best Reagrds Carlos

Last question I don't connect B0_13(SW protocol signal) and EMC_01 (JTAG_DE_B) pull-up, I need to connect them? Carlos.

MKL02 use jtag to drive flash' pins directly? Or use peripheral registers ? Carlos

You right, If I get slow blink it means that MKL02 can read ID flash? I'm using flash provided by pjrc. Because of that my question, the boot process (no the powerup process) son can identify where is the error If MKL02 can save some in the...

Hello, kicad symbol can hide signals with the same name and different number and show only one, so D+ is a group for 2 signals, I've already use This symbol/footprint before. Boot_mode_1 is connected to gnd. GPIO_SD_B1_05 is unconnected, just...

Yes, is the slow steady blink 50% duty cycle Carlos

Hello Thanks for your answer I'm attaching schematics, basically is the same teensy schematic but with separated MKL02 circuit

Hello This is an old picture, I've already mount a PJRC flash. The current problem are with 10 blinks and 1 blink. Best Regards Carlos

Ok, so the best way is use jtag port to load a different loader ? I'm using flash and MKL02 fron pjrc. So my board don't work with this configuration Best regards

Thanks for your answer, MKL02 blink the LED, so MKL02 is running some code to check the correct functionallity. Im my case 10 blinks and one blink, Can I asume that MKL02 save startup code to flash and iMXRT is running it?

Yes, I understand the POWER UP sequence, my board complete the full sequence, but I need the botloader sequence: i.e. 1. Load first step loader in internal ram 2. Configure clocks, gpios,peripherals ... 3... Read ID flash memory if not supported...

This is my board I want to use 2 Ethernet ports, the bootloader chip is connected to J12

Hello My board complete the power up sequence sucessfully, Detect flash memory ID, but I don't know the point when fail. One board present Serial Number Already Assigned. And 3 Slow Steady 1 Second 50% On/Off = No USB Communication. With thia...

Can you sendme the boot Sequence please? I want to know where fail my board Thanks

All boards are identicals, I'm reading that one blink with 50% duty cycle means USB problems. I use new chips from pjrc flash and mkl02 Best regards Carlos

Hello, thanks for your answer. We have 4 boards, all with new flash chips, in one we get 10 blinks, 3 boards the led blink one time. Carlos

Hello I' m using PJRC pre-programmed MKL02 on custom iMXRT1062 board. The board complete the powerup Sequence, but the board blink the LED 10 times, there is a way to disable Ethernet MAC verification? Can you share with me the bootloader...