both lora and qmi spi conflict

[Yasshion]

Hello, im trying to use both lora and qmi on t-beam s3 supreme board, i had to disable the spi lora in the initboard function in order to make the QMI8658_GetDataExample work

void initBoard() { Serial.begin(115200); Serial.println("initBoard"); //SPI.begin(RADIO_SCLK_PIN, RADIO_MISO_PIN, RADIO_MOSI_PIN);

if i commented this line of code then qmi works

Wire.begin(I2C_SDA, I2C_SCL);

ifdef I2C1_SDA

Wire1.begin(I2C1_SDA, I2C1_SCL);

endif

... } in the end i want to use lora as well but when i activate lora

if (!qmi.begin(IMU_CS)) {
    Serial.println("Failed to find QMI8658 - check your wiring!");
    while (1) {
        delay(1000);
    }
}

this line of code fails is there a possible solution for it? Because s3 has 4 spi and in the utilities.h radiospi and spi is suppose to be two different spi i think, if it not ill try to define a new spi for it any other way can you help me to fix this issue?

Thank you.

[lyusupov]

one can supply a spare SPI bus as an argument: for begin() method:

• https://github.com/lyusupov/SoftRF/blob/master/software/firmware/source/SoftRF/src/platform/ESP32.cpp#L181
• https://github.com/lyusupov/SoftRF/blob/master/software/firmware/source/SoftRF/src/platform/ESP32.cpp#L873-L878

[lewisxhe]

Sorry, I have fixed it, please try againThe example passes the SPI object by default, but HSPI has been initialized as the SD card in the initBoard function, so for QMI, HSPI needs to be used for communication. This was my mistake. It has been fixed now.

[Yasshion]

Thank you, both of you it works now

[lyusupov]

@Yasshion

Thank you, both of you it works now

Once you are happy - would you mind to close this ticket, please ?

[lewisxhe]

Solved, then I will close the issue

[Bitbanger1900]

Hi,

I try to run the sample (QMI8658_WakeOnMotion) but it never works to use the QMI8658 over the Wire bus. Over SPI it works but not over I2C. Can you please provide me an example how to use the QMI with Wire?

Kind Regards, Hannes

I uncomment the #define USE_WIRE and use the following to attach the QMI:

define SPI_MOSI 35

define SPI_SCK 36

define SPI_MISO 37

define SPI_CS 47

define IMU_CS 34

define IMU_INT 33

ifdef USE_WIRE

//Using WIRE !!
if (!qmi.begin(Wire, QMI8658_L_SLAVE_ADDRESS, SPI_MOSI, SPI_SCK)) {
    Serial.println("Failed to find QMI8658 - check your wiring!");
    while (1) {
        delay(1000);
    } 
}

AXP2101 PMU init succeeded, using AXP2101 PMU Power off and restart ALDO BLDO..

DC1 : + Voltage: 3300 mV DC2 : - Voltage: 0900 mV DC3 : + Voltage: 3300 mV DC4 : + Voltage: 1840 mV DC5 : + Voltage: 3300 mV ALDO1: + Voltage: 3300 mV ALDO2: + Voltage: 3300 mV ALDO3: + Voltage: 3300 mV ALDO4: + Voltage: 3300 mV BLDO1: + Voltage: 3300 mV BLDO2: + Voltage: 2800 mV

PowerKeyPressOffTime:4 Second Started OLED setupSDCard FAIL Failed to find QMI8658 - check your wiring!

[lewisxhe]

@Bitbanger1900 On t-beam-s3, QMI is only connected to SPI, and I2C cannot be used.

[Bitbanger1900]

Hi,

may i ask how Yasshion and you solved this with the SPI Bus Lora/QMI with an example? When QMI is working and i add an SPIClass with HSPI to start the LORA, QMI stops working as if there is always an SPI Bus conflict. Sometimes it works but after a powercycle most of the time not.