I am using two PAN1740, one with the sps_device project version 3.150.2 connected over ble to the second one (sps_host) and experience the following problem on the sps_device side:
没有matter if I use pwm 2, 3 or 4 timer on pin 1.2, the BLE interface has connection issues (slow transmission, often connection lost and reconnect, or sometimes only connection possible after pwm disabled on pin 1.2). HW_CAN_PAUSE_PWM_2_3_4 is set at initialization of timer_2. When I use pwm 2, 3, 4 on ohter pins (e.g. 1.0, 1.1) there are no such issues. Is it because of an unfortunate routing of pin 1.2 chip/module internallly? Can you recommend pins which are less prone to disturb the BLE so I could change my schematic? I allready read the pwm related issues in this forum but so far the answers didn't help me.
Thank you for your help in advance.
Marc
Hi, we have noticed this as well previously. I believe it is a known issue that the pins P1_2 and P1_3 may interfere with the bluetooth communication. This issue will be extra significant when using PWM on those pins. If you can I suggest using different pins.
Best
Hi Marc
Joacimwe is right, we confirm the issue with the pins P1_2 and P1_3 interfering the bluetooth communication.
Thanks MT_dialog
Hi
Thank you for your information! I will consider this in the next re-design of our pcb.
Best regards,
Marc