Hi Team,
Good day!,
Question 1:
Here we have used U1(LT), J104 as the Jumper between the U8 and switch , which will go for S32K144-100, from openSDA J105 is in series to U1, but you have made it as DNP, then how we can reset the MCU.
Can you please explain this entire process of the reset and than how the flow will be and it work.
Question 2:
Please explain this reset function and voltage level(Ramp-up and down) of it to reset (pin 19 in openSDA).
Question 3: Here in this post, OpenSDA (MK20DX128VFM5) connection details
you have said that "The USB regulator must be enabled by default to power the MCU" where can I found the enable of USB regulator.
Then VDD and VOUT33 should be connected with 0R (Jumper) to power the OpenSDA IC, I am right?,
what will be the VOUT33 current rating, will it able to power the MCU(S32K144-100) and also its own internal circuits.
please share the power consumption of OpenSDA and S32K144-100.
Thanks,
Ram.
Hi @Ram_RAM,
1. The configuration for J104 in 1-2 is for access into OpenSDA Bootloader mode:
If my understanding is correct and you would like to implement OpenSDA in your custom board, I have to tell you that it is not possible. OpenSDA comes from P&E Micro and it is only available on Freedom board.
You can look into these related posts from PE Micro:
OpenSDAv2 is open source, and it is developed by the mbed community: OpenSDAv2 - NXP Community.
2. Please refer to chapter 25 (Reset and Boot) of the S32K1xx's reference manual for more information on the reset sources and boot sequences that are supported, as well as AN5426 (Hardware Design Guidelines for S32K1xx Microcontrollers):
3. I'm not sure I understood this question, are you asking if VDD must be connected to the Open SDA for voltage supply? You can find the power switch inside the S32K144-EVB schematics.
You can find the S32K Power Estimation Tool, which calculates power consumption for the S32K1 device, from the following page S32K1 General-Purpose MCUs:
Best regards,
Julián
Hi @Ram_RAM,
1. The configuration for J104 in 1-2 is for access into OpenSDA Bootloader mode:
If my understanding is correct and you would like to implement OpenSDA in your custom board, I have to tell you that it is not possible. OpenSDA comes from P&E Micro and it is only available on Freedom board.
You can look into these related posts from PE Micro:
OpenSDAv2 is open source, and it is developed by the mbed community: OpenSDAv2 - NXP Community.
2. Please refer to chapter 25 (Reset and Boot) of the S32K1xx's reference manual for more information on the reset sources and boot sequences that are supported, as well as AN5426 (Hardware Design Guidelines for S32K1xx Microcontrollers):
3. I'm not sure I understood this question, are you asking if VDD must be connected to the Open SDA for voltage supply? You can find the power switch inside the S32K144-EVB schematics.
You can find the S32K Power Estimation Tool, which calculates power consumption for the S32K1 device, from the following page S32K1 General-Purpose MCUs:
Best regards,
Julián
