Pressure Sensors Forum Discussions

Dear.

What is the difference between configuring full measurement as 0, or 1 in Lib_Meas_Fast_Sample function?

 

smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/%E5%8E%8B%E5%8A%9B%E4%BC%A0%E6%84%9F%E5%99%A8/SP49-full-measurement%E9%85%8D%E7%BD%AE/td-p/723774

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Hello!

I have designed a PCB that uses the SP490-01-11 tire pressure monitoring sensor. I would like to program the sensor but have run into some problems.

According to the documentation available here: https://www.infineon.com/cms/en/product/evaluation-boards/sp4x_prog_adapter/ the SP4X_PROG_ADAPTER should be used to program the IC, the programming adapter is currently not available to purchase anywhere.  Are there any alternative programmers I could use?

Based on the quick start guide I should be able to write code, compile and flash it to the IC using Keil μVision, but even after installing the plugin there is no SP490 in the list of targets. How can I add it?

 

Thank you for the help in advance.

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Dear,

i have couple of question on pressure sensor KP264 and usage of Diag1\Diag2 .

1- The Diag1 and Diag2 test shall be triggered  at start-up or after start-up by means of Diag SPI commands ? 

2- The use case UC2 in the safety manual mention a tsafety= 1ms.  Does it means that  the pressure measurement is available  1ms after the Acquire pressure SPI command?  (So opposite to the UC1 where the system shall wait 5 ms before reading the response of a Pressure SPI command).

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We bought SP4X_DEV_KIT. I am trying to communicate with SP400-15-11 sensor and CC1101 SubGHz transceiver. I can see it's broadcasting on 433MHz. But i can't see the data packets the SP40 is sending.

There is very little information about SP40.

I use CC-Debugger with CC1101 and SmartRF Studio 7.0 from TI. I am sharing my SmartRF Studio 7.0 setting parameters in the attachment.

Which parameters is wrong? How can I build communication CC1101 with SP40?

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Hello everyone, I'm currently working with the SP40 chip for pressure sensors and I'm seeking information regarding its programming. I'm aware that the SP4x_ProgAdapter is widely recommended for programming the sensor. However, I'd like to inquire if anyone has knowledge about the possibility of using third-party programmers for this task. Is there a viable alternative to the SP4x_ProgAdapter for programming the SP40 chip? If so, what other programmers or methods can be used effectively and safely? I would greatly appreciate any shared information or experiences on this matter. Thank you in advance! Show Less

I hope this message finds you well. I'm currently working with the SP40+ chip and exploring its capabilities for a project. I have a query regarding the software functionalities and RF transmission capabilities. Specifically, I'm interested in knowing if the SP40+ chip, through its software interface, supports the transmission of customized strings via RF. Is it possible to send personalized strings such as "location of the tire" and "type of truck" via low-frequency RF transmission? Furthermore, could you provide guidance on whether these strings can be assigned and transmitted via the sensor's microcontroller through software configurations or if there's a specific procedure for transmitting such information via low-frequency RF? Any insights or documentation references regarding these capabilities would be immensely helpful for the project I'm currently working on. Thank you in advance for your assistance and support. Best regards. Show Less

I'm using SP49 example code Low Power Monitoring Code. 

The main function in the code int main(void) does repeat every time we call the library function Lib_State_Low_Power(); and also all global variable values are also automatically set to zero.

What's the reason behind this and please provide solution for it.

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the original driver writes values to undocumented registers 0x0E, 0x0F & 0x62 (neither in the datasheet for the DPS368 nor DPS310).

See function _xensiv_dps3xx_correct_temperature in xensiv_dps3xx.c (below)

Can anyone tell me anything about this function?

Thank you very much
Thomas

 

 

static cy_rslt_t _xensiv_dps3xx_correct_temperature(xensiv_dps3xx_t* dev)
{
    uint8_t write_data = 0xA5;
    cy_rslt_t rc = _xensiv_dps3xx_reg_write(dev, 0x0E, &write_data, 1);
 
    if (rc == CY_RSLT_SUCCESS)
    {
        write_data = 0x96;
        rc = _xensiv_dps3xx_reg_write(dev, 0x0F, &write_data, 1);
    }
 
    if (rc == CY_RSLT_SUCCESS)
    {
        write_data = 0x02;
        rc = _xensiv_dps3xx_reg_write(dev, 0x62, &write_data, 1);
    }
 
    if (rc == CY_RSLT_SUCCESS)
    {
        write_data = 0x00;
        rc = _xensiv_dps3xx_reg_write(dev, 0x0E, &write_data, 1);
    }
 
    if (rc == CY_RSLT_SUCCESS)
    {
        write_data = 0x00;
        rc = _xensiv_dps3xx_reg_write(dev, 0x0F, &write_data, 1);
    }
 
    return rc;
}

 

 

 

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I'd like to know how to upload and update the S/W of SP40.

From the Datasheet, it seems that PP0 and PP1 are used to make I2C.

Do I need an MCU to upload and update the S/W to SP40 in this way?

If you need MCU, do you upload and update S/W via Keil C51 and ST-Link?

Is there a way to do it without MCU?(Is there any SP40 S/W upload tool that Infineon provides separately?)

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