I am running CAN1 on a STM32F415 processor to communicate with an ECU and several other 415's on the bus. I have the SCE handler set up to store last error codes (LEC). I don't seem to be having any problems with the receive but the transmit side is ...
We have some older chips that are trying to program on board via another processor. I have been using AN3155 and can read from the processor and can write areas in memory that are set to 0xFF. I have verified by snooping on the UART that the correct ...
Posted on February 21, 2014 at 23:16
Hello,
I am trying to use a STM32F103 (8Mhz external clock) to get the duty cycle of a 20 Khz PWM signal. I am using Timer2 and trying to look at the rising edge using channel 1 and pointing channel 2 at ...
Finally determined that I was using the wrong erase command, my version didn't know 0x43, had to use 0x44. I should have checked the return from my "get command" query. Why do you have to erase the flash before you write to it?
Posted on February 27, 2014 at 00:19I did a little more probing with the oscilliscope and saw that my optocoupler is introducing quite a bit of delay in my circuit, not the STM32. I reduced the ohms on my pullup resistor on the microcontroller side...
Posted on February 26, 2014 at 16:40Tried the sample program mentioned above. I like how it works better, only one interrupt. But I am still seeing the problem of 44 uS before the interrupt is fired. My frequency is correct, but the 44 uS delay i...
Posted on February 25, 2014 at 16:25Thank you for the response. I will look into the link that you mentioned above. Yes, I can take the clock down to DIV1. I have and 8 Mhz external clock hooked up and have system clock running 72Mhz.
