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    Support needed for NXP KL25Z Freedom board

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    • kowshik1729
      kowshik1729 last edited by

      Hello,
      I've been practicing ARM programming over NXP's Kinetis series KL25Z board. Unlike the kinetis HAL approach, I am practicing entirely using baremetal coding with Keil U vision. I am facing problems in coding the UART programme of this board. If anyone has any prior experience over this board please do help me out guys. I have attached the link for the datasheet of this board FRDM KL25Z Datasheet Link

      Thanks in advance

      1 Reply Last reply Reply Quote 0
      • salmanfaris
        salmanfaris last edited by

        Hi @kowshik1729 ,

        Could you please specify what problem you are facing while using UART in KL25Z? it will be more helpful to understand your situation. also, try to attach some useful error log.

        1 Reply Last reply Reply Quote 0
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        • Hi team,

          Any one have experience in Altium schematic designing.
          I am facing some issue in Hierarchy->harness in Schematic.
          The offpage number for harness is not showing, and while generation the smart PDF if we click the harness port /green box the page want to go there automatically, but that also not working.

          • read more
        • D

          @salmanfaris thank you so much man, I'll try this and update you shortly. Thank you once again.

          Best,
          Dipu

          • read more
        • Hi @dipu_varghese ,

          Here is the sample input from the binary edge impulse inference,

          Predictions (DSP: 16 ms., Classification: 1 ms., Anomaly: 2 ms.): idle: 0.91016 snake: 0.08203 updown: 0.00391 wave: 0.00391 anomaly score: -0.067”

          And from here for example we can try to get the updown values only by attaching the device to another controller and read the Serial string directly.

          void setup() { // Start serial communication at 9600 baud Serial.begin(9600); } void loop() { // Wait until there is data available on the serial port while (!Serial.available()) { // Do nothing } // Read the input string from the serial port String inputString = Serial.readStringUntil('\n'); // Find the position of the "updown" value in the input string int updownPos = inputString.indexOf("updown:"); // If the "updown" value was found in the input string if (updownPos >= 0) { // Extract the "updown" value from the input string String updownString = inputString.substring(updownPos + 8, inputString.indexOf('\n', updownPos)); // Convert the "updown" value to a float float updownValue = updownString.toFloat(); // Output the "updown" value Serial.println(updownValue); } }

          The sketch should then output the "updown" value, which is 0.08203.

          Hope this will be helpful, let me know if you need more clarification.

          • read more
        • D

          @salmanfaris any updates?

          Best,
          Dipu

          • read more
        • D

          @salmanfaris Hope you're doing well, did you get sometime to work on this?

          Best,
          Dipu

          • read more
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