STM32 MPUs Products and hardware related
Ask questions and find answers on STM32 microprocessors, including hardware, power, DRAM, flashing, interfacing, device tree, and peripherals.
Forum Posts
STM32MP157A M4, the result of ADC_1 always is odd value. (the DR LSB is '1' always.)
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...
How to initialize the audio codec cs42l51-cnz with standby mode in cortex-M4 of STM32mp157A-DK1 ?
I want to do audio recording an cm4，but dont know how to config the codec, Is there an audio recorder example?
Resolved! STM32MP1 OTP Word 5..7 function details for remapping to the altenate pins
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...
Using the CS41L51 audio chip while using SPDIF will cause the following errors.
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...
We bought the stm32mp157a-DK1 Board. Problem STlink Utility does not see STM32MP157AAC. Only the debugger is visible.
The debugger returns an error Failed to execute MI command target temote 3333
search a char array within an other char array
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...
Resolved! STM32MP151C memory size that Coprocessor(Cortex-M4) can use
I want to know the memory size of STM32MP151CAA3 that Coprocessor(Cortex-M4) can use.https://wiki.st.com/stm32mpu/wiki/Boot_chains_overview#STM32MP15_boot_chainthis wiki page says that coprocessor(Cortex-M4) program loaded in MCUSRAM(384kB).Does this...
Resolved! Glitchy U-Boot behavior with custom STM32MP157D-based design
I'm bringing up a custom STM32MP15x-based design, and I'm encountering what looks like stack corruption issues in U-Boot (and I can't get a kernel to boot).Symptoms:I've enabled early debug printing, and get the following output:U-Boot SPL 2020.04-st...
How do I enable LinuxPTP PPS Output?
I know that to get PPS output on the Ethernet PPS Pin PG8 that the device tree has to configure the pin for AF11. I also believe that PPS has to be enabled somehow? On some embedded Linux systems there is a /sys/class/ptp/ptp0/pps_enable variable to...
