Ask questions and find answers on STM32 microprocessors, including hardware, power, DRAM, flashing, interfacing, device tree, and peripherals.
The kernel I used was 4.19 and the CPU on STM32MP157AAA3 was able to read the CPU at 650M frequency.I failed to read when I only replaced THE CPU with STM32MP157DAA1.STM32MP157AAA3 To read the CPU frequency results are as follows:STM32MP157DAA1 Reads...
I want to exchange large data buffers with the coprocessorI have tried following wiki page.https://wiki.st.com/stm32mpu-ecosystem-v1/wiki/How_to_exchange_large_data_buffers_with_the_coprocessor_-_principle#User_space_interfaceI tried to bitbake, bu...
hi, I need to stop some peripherals within m4 core before linux stop command:echo -n stop > /sys/class/remoteproc/remoteproc0/statehow can I manage that ?tnx.
Hi, I'm porting ADC on M4, but some how the converting result is odd value always, seems the DR bit-0 is always '1'. I tested it by VR, range from 0v to 3.3v, the ADC suppose to convert it from 0 to 255, but I don't know why, I just get odd value bac...
I want to do audio recording an cm4，but dont know how to config the codec, Is there an audio recorder example?
Hi everyone,STM32MP1 ROM Code has default AF mux for SPI_NOR/NAND like this:QUADSPI_CLK -> PF10 (AF9)QUADSPI_BK1_NCS -> PB6 (AF10)QUADSPI_BK1_IO0 -> PF8 (AF10)QUADSPI_BK1_IO1 -> PF9 (AF10)I want to remap to the new pins using the OTP CFG5..7The poins...
My device tree configuration { spdif_out: spdif-out { #sound-dai-cells = <0>; compatible = "linux,spdif-dit"; status = "okay"; spdif_out_port: port { spdif_out_endpoint: endpoint { remo...
The debugger returns an error Failed to execute MI command target temote 3333
hi everyoneI'm trying to search for a certain char array(say char Temp[]) within a lager array in this case, char Rcv[500]. here is my codeint scanRcv(char *Temp){ int ii=0; for(int i=0;i<RcvLength;i++){ while(Rcv[i]==Temp[ii]){ ii++; if(ii==strlen...
