Stm32 adc injected conversion mode example - The ADC Sampling Rate (Frequency) is calculated using this formula: SamplingRate = 1 / Tconv.

 
This is useful, for <b>example</b> in motor control application , to delay <b>conversion</b> until after some event is complete (such as transistor switching) so that the <b>conversion</b> noise is reduced. . Stm32 adc injected conversion mode example

To understand simple things, let’s go with the simplest case – single conversion mode. The 16-bit ADS1115 has a programmable amplifier at the front end, with the highest gain setting providing a range of +/- 0. Figure 1. Note: This application note is not delivered with a firmware example of this mode. · STM32 Timer + ADC + DMA: Part 3. We will use all the possible ways of reading the ADC values. As a higher priority one. If you open at the same time These four channels of CH0, CH1, CH4, and CH5. * This example is based on the STM32F4xx ADC LL API; * Peripheral initialization done using LL unitary services functions. EOCSelection = DISABLE; It turned out that #define ADC_EOC_SEQ_CONV ( (uint32_t)0x00000000) value is equal to DISABLE. Conversions can be launched in software or using hardware triggers. lam tran Asks: LSTM model has poor prediction in simple example. When talking about STM32 's clock tree, the author recommends the mikroC clock configuration tool as a. Has anyone got an example of how to trigger an ADC from a Timer, and, then use the DMA to transfer the results from the ADC to a buffer in RAM. · This injected mode works perfectly in this case, as we can have it be. Jun 6, 2020 · Select the ADC channel using ADC->SQR3 : SQ1 bits (1st conversion in regular sequence) Enable EOC interrupt using ADC->CR1 : EOCIE bit In interrupt service routine (ISR), collect the result from ADC->DR. 2 days ago · channel 4 use pwm mode 1. STM32 divides ADC conversion into two channel groups: regular channel group and injection channel group. This is useful, for example in motor control application , to delay conversion until after some event is complete (such as transistor switching) so that the conversion noise is reduced. Later on, when ADC conversion data is needed: use HAL_ADC_PollForConversion () to ensure that conversion is completed and HAL_ADC_GetValue () to retrieve conversion result and trig another conversion start. h file. The first thought would be a resistor divider. 5 cycles ADC Sampling Rate SamplingRate = 1 / Tconv ADC Result Voltage (Analog Input Value) Vin = ADC_Res x (Reference Voltage / 4096) Where Reference Voltage = (VREF+) - (VREF-) ADC & DMA. I hope this helps you get started with the ADC and DMA on the STM32! The ADC is a wonderful tool, and it offers a vast. - STM32™'s ADC modes and their applications. * @brief This example describes how to use a ADC peripheral to convert * several channels, ADC conversions are performed successively * in a scan sequence. c 파일을 열면 CUBEMX로 생성된 기초 코드들이 있다. Feb 27, 2017 · Single-channel, single conversion mode: This is the simplest ADC mode. 3 = 1241 Result = 1 ⋅4095/3. This tutorial focuses on the fundamentals of communicating with the (Analog-to-Digital Conversion) ADC module of STM32 boards. week 1: printf statements and UART. 5+12)= around 2. Has anyone got an example of how to trigger an ADC from a Timer, and, then use the DMA to transfer the results from the ADC to a buffer in RAM. Here we will set up the scan mode and the Resolution for the ADC1. This is useful, for example in motor control application , to delay conversion until after some event is complete (such as transistor switching) so that the conversion noise is reduced. The clock is common for both master. basahin ang mga nakalista ang gawain brainly. Regular and Injected. In the previous ADC guides (part 1, part 2, and part 3), we talked about how to configure the ADC to read a single channel in three different modes, polling, continuous with polling and interrupt. With my configuration the ADC convert only once and then never reach the HAL_ADCEx_InjectedConvCpltCallback again. is_stm32_timer_trigger()) with local ADC lookup table to validate a trigger can be used. Start a new project in STM32CubeIDE with C. The figure-1 above depicts simple pin diagram of n-bit ADC converter. The result is stored in one of the injected result channel for the interrupt. The result is stored in one of the injected result channel for the interrupt. In this article we will learn how to configure it using the STM32CubeIDE tool and how to use it in an application. STM32 ADC is a pretty complex peripheral. 3 V) is 4095 ( 0b111111111111 ). Regular mode is like all ADC's have. Show file. First of all, I need to convert 2 analog values simultaneously because I plan to compute a. You can rate examples to help us improve the quality of examples. void adc_set_continuous_conversion_mode(uint32_t adc). It is able to carry out the conversion sequence up to a maximum of four channels, . The settings that I use for ADC: -Synchronous clock mode by 1 (72 MHz) -12 Bits. Figure 1. The ADC result can be stored in a 16-bit data register in a left-justified or right-justified manner. page aria-label="Show more">. We will use all the possible ways of reading the ADC values. STM32 ADC Interrupt Example The Exact Same Steps As The Previous Example Except For Step 3. In this mode, ADC does one conversion and then stops.  · A detailed tutorial on STM32 ADC. -Continuous Conversion is enabled. .  · Now let’s see an example to measure analog voltage input using STM32F4 discovery board ADC in single-channel and single conversion mode. com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/ – user31045 Oct 29, 2013 at 19:00 I have used this DMA mode with two coupled ADC on the F3 devices (same F4 core, multiple ADC) both in simultaneous and interleved modes. Since converted regular channel values are stored into a unique data. As a higher priority one. The single mode here is not to refer to a channel. Dual mode conversion on devices with at least 2 ADC units. Feb 06, 2021 · Yes, ADC callback is called from an interrupt handler. void ADC_SoftwareStartConv (ADC_TypeDef* ADCx) e. I'm trying to sample a 1MHz signal with the DMA method. Jun 30, 2022 · ADC Peripheral features: (STM32F429XX) 1. The injected mode is a mode where the ADC conversion can be "injected" during the conversion of regular channels due to some trigger (timer or something else). Adc use injected conversion mode to sample motor current. STM32 F4 - ADC in Dual Mode Simultaneously. Arduino library for ADS1015 - I2C 12 bit ADC and ADS1115 I2C 16 bit ADC: ADS1110: ADS1110 Driver (16-BIT ADC with Onboard Reference, PGA and I2C Interface) ADS1115-Driver: Lightweight arduino library for the ADS1115 ADC converter IC: ADS1115_WE: A library for the ADS1115 ADC: ADS1118 library. In ISR, Repeat step 2 to configure ADC for the next channel. The ADC Setup is shown below. In this mode, the ADC performs the single conversion (single sample) of a single channel, and stops after completion of the conversion. Application examples. The single mode here is not to refer to a channel. adc and timer setting code:. ADC setting. 1 oct 2013. STM32 microcontrollers support two ADC conversion modes: regular and injected. STM32 F4 - ADC in Dual Mode Simultaneously. ) and stops after completion of the conversion. STM32 microcontrollers support two ADC conversion modes: regular and injected. SamplingTime = ADC_SAMPLETIME_15CYCLES; switch (channel) { case 1: sConfig. 2K, which convert 10. Single-channel, single conversion mode 1. Next time we will try different ADC mode used more efficiently. The single mode here is not to refer to a channel. A target seems clear but when I try to download source code to flash, it doesn't send any data to COM port. Note: This application note is not delivered with a firmware example of this mode. Injected Conversion Mode: None. Do use with polling: 1. Jun 16, 2017 · Injected mode is a high priority preemption conversion. This is the simplest mode to use. Conversions can be performed in single, continuous, scan or discontinuous mode. I am going through your provided link in detail now. Change PA0 to ADC1_IN5. 2 days ago · channel 4 use pwm mode 1. Here we will set up the scan mode and the Resolution for the ADC1. -Continuous Conversion is enabled. In continuous conversion mode, the ADC analog input is continually converted and written to. 1 oct 2013. Hello everybody, i have a motor control application and try to trigger a ADC in injected conversion mode with the Output Compare (OC4REF) trigger of TIM1. 5, 28. STM32F303: Injected ADC triggered with TIM1 Hello everybody, i have a motor control application and try to trigger a ADC in injected conversion mode with the Output Compare (OC4REF) trigger of TIM1. Jun 16, 2017 · ST ADC have two conversion modes. Contribute to eziya/STM32F4_HAL_EXAMPLES development by creating an account on GitHub. This avoids the loss of the data already stored in the ADC. Each ADC has two conversion modes: "regular" and "injected". The ADC embedded in STM32 microcontrollers uses the SAR (successive approximation register) principle, by which the conversion is performed in several steps. I use the interrupt at the end of conversion to call a callback function to store the acquired value. The injected mode is a mode where the ADC conversion can be "injected" during the conversion of regular channels due to some trigger (timer or something else). STM32 microcontrollers support two ADC conversion modes: regular and injected. stm32 problem with ADC conversion. Switch to the „Clock Configuration“ tab and make sure the high speed clock is selected and the main clock is set to 72 Mhz. Re: STM32: Triple Interleaved - Example Code By ST. You can disable it if you want. Arduino library for ADS1015 - I2C 12 bit ADC and ADS1115 I2C 16 bit ADC: ADS1110: ADS1110 Driver (16-BIT ADC with Onboard Reference, PGA and I2C Interface) ADS1115-Driver: Lightweight arduino library for the ADS1115 ADC converter IC: ADS1115_WE: A library for the ADS1115 ADC: ADS1118 library. The clock is common for both master. 28 nov 2021. Stm32 adc injected conversion mode example ik Fiction Writing With my configuration the ADC convert only once and then never reach the HAL_ADCEx_InjectedConvCpltCallback again. I have also enabled the Continuous Conversion, it’s not needed though. The result is written to a common register, that the DMA takes care of. Two examples will be given: I will first try to measure the supply voltage for the STM32F0 chip, which is also the reference voltage for ADC module. regular channels. 3v, so it’s something to consider. 51 Example 1: Simple single channel conversion polled. Note: This application note is not delivered with a firmware example of this mode. For The Previous example where Tconv = 1µs, The samplingRate = 1000000 = 1Ms/sec. [] Example execution: From the main program execution, the ADC group regular converts the selected channel at each trig from timer. The injected mode is a mode where the ADC conversion can be "injected" during the conversion of regular channels due to some trigger (timer or something else). . Is that mean, that the injected channels can be used only when the external triggers shown in Table 48 (page 237) of RM0038 Refernce manual are being activated? Regards. Single mode and continuous mode of STM32 ADC. A rising edge on this input . adc and timer. Single-channel, single conversion mode 1. /** * @brief Configures the ADC injected group and the selected channel to be * linked to the. Now let's see an example to measure analog voltage input using STM32F4 discovery board ADC in single-channel and single conversion mode.  · A detailed tutorial on STM32 ADC. Jun 6, 2020 · Select the ADC channel using ADC->SQR3 : SQ1 bits (1st conversion in regular sequence) Enable EOC interrupt using ADC->CR1 : EOCIE bit In interrupt service routine (ISR), collect the result from ADC->DR. In this mode the ADC converts sequentially one channel. In injected mode, an ADC conversion can be injected — using an external trigger — during the . Joined Feb 21, 2017 Messages 5. Regular and Injected. Test the SAADC Example application by performing the following steps: Compile and program the application. In this mode the ADC consumes almost no power (only a few uA). Once this bit has been set, the ADC scans all the channels selected in the ADC_SQRx registers (for regular channels) or in the ADC_JSQR register (for injected channels). com/adc-conversion-time-frequency-calculation-in-stm32/ Single channel using Poll for conversion. So this lets you set up ahead of time the channels and their settings. Single mode and continuous mode of STM32 ADC. The conversion core can consist of more than 16 channels, and the order in which the channels must be converted can also be programmed. If the voltage is 2 V the result'll be:. The following example shows how you can get an ADC conversion result in blocking mode. HAL_ADC_Start(&hadc1); HAL_ADC_PollForConversion(&hadc1, HAL_MAX_DELAY); uint32_t adc_value = HAL_ADC_GetValue(&hadc1); Using ADC in non-blocking mode with interrupt You can use ADC in non-blocking mode with interrupt. I create a simple sine wave example which contain more thang 1000 point to predict the next point. c * @brief Multi injected channel ADC example for STM32 Nucleo-F446RE. So this lets you set up ahead of time the channels and their settings. page aria-label="Show more">. Here is my Init configuration:. SW implementation: The Following ADC example is implemented on STM32F303 microcontroller using HAL low level driver. STM32F4 ADC is a 12-bit successive approximation analog-to-digital converter with multiplexed input channels. The sampling rate is 72M/ (19. Before we start conversions, Let’s see some of the concepts we are going to use in ADC. For The Previous example where Tconv = 1µs, The samplingRate = 1000000 = 1Ms/sec. Results array is updated indefinitely (DMA in circular mode). HAL_ADC_Start(&hadc1); HAL_ADC_PollForConversion(&hadc1, HAL_MAX_DELAY); uint32_t adc_value = HAL_ADC_GetValue(&hadc1); Using ADC in non-blocking mode with interrupt You can use ADC in non-blocking mode with interrupt. The following example shows how you can get an ADC conversion result in blocking mode. There's a video demonstrating each of the examples covered in this series of articles. The injected group has priority over the regular channel group. STM32F303: Injected ADC triggered with TIM1. The example source code is here: STM32DiscoveryADCSingle. АЦП преобразует аналоговый сигнал в цифровой код. void select_adc_channel (int channel) { ADC_ChannelConfTypeDef sConfig = {0}; sConfig. ) and stops after completion of the conversion. You could imagine a multitude of applications based on the STM32 ADC features. Sinh ra ngắt tại các sự kiện End of convert, End of Injected, Analog Watchdog.  · STM32H7 ADC Multi Channel Continuous Conversion Polling Mode. Use of interrupts. External trigger option with configurable polarity for both regular and injected conversion. /* Note: in this example, ADC group regular end of conversions */ /* (number of ADC conversions defined by DMA buffer size) */ /* are notified by DMA transfer interruptions). 2x 12Bit ADC (0,5µs) 3x 12Bit ADC (0,5µs) Up to 3x 12Bit ADC. I create a simple sine wave example which contain more thang 1000 point to predict the next point. But there are many applications where we need to take ADC samples as fast as possible. Note: This application note is not delivered with a firmware example of this mode. Getting the STM32 to take 1 ADC reading is relatively straightforward. The ADC injects the conversion between the regular conversions. I tried without success and cannot find information of it in the reference manual. This is the simplest mode to. Enable ADC1 Interrupt; We are going to use the call back function of the ADC analog watchdog so interrupts need to be enabled for ADC1. Sep 21, 2017 · The TS100 has an op-amp setup to read the small voltage from the thermocouple (U1). In this mode the ADC converts sequentially one channel. Mastering STM32 Testing Examples. The following example shows how you can get an ADC conversion result in blocking mode. Two examples will be given: I will first try to measure the supply voltage for the STM32F0 chip, which is also the reference voltage for ADC module. 5 + 12. I'm trying to sample a 1MHz signal with the DMA method. Change PA10 (which is connected to header pin D2) to GPIO_Output. For now I did it in a "dummy" way: setup ADC in basic single mode, then launch a timer @250Hz and at each timer interrupt start the ADC to convert only one sample on each channel. 12 ago 2017. Typical devices would be Atmel Atmega series microcontrollers like Atmega8 and further. described modes is provided with an example of application to better understand how to use. The samples of each conversion sequence is received over SPI1 and stored on the SD card over SPI2. STM32 ADC rule group and group configuration injection. Regular group — You can convert up to 16 analog signals. 사실 regular and injected conversions는 어떤 모드라고 하기 보다는 conversion 방법 중 하나라고 할 수. Single conversion mode is useful only for slow applications where we need to take A/D conversion 1-2 samples per second only. 1 Answer. Injected Group 의 우선순위가 높기 때문에 Regular Group 의 ADC 수행 중 Injected Group ADC 요청이 발생하면 Regular Group 은 선점되고 Injected Group 의 ADC 가 우선 수행된 후 재개 됨. For a single conversion: 1 2 3, ADC1 . This is the simplest ADC mode. taboo porn

The ADC injects the conversion between the regular conversions. . Stm32 adc injected conversion mode example

Feb 27, 2017 · Using a timer, the <b>injected</b> <b>conversion</b> <b>mode</b> can thus be implemented to delay the <b>ADC</b> measurements to after the transistor switching. . Stm32 adc injected conversion mode example

The injected group has priority over the regular channel group. Workplace Enterprise Fintech China Policy Newsletters Braintrust kh Events Careers pa Enterprise Fintech China Policy Newsletters Braintrust kh Events Careers pa. The four channels will be stopped in the single mode conversion mode. In STM32F4, this can vary between 6-Bit, 8. The block schematic may look scary the first time, but it can be split into several pieces that are responsible for different functions if you look closer. HAL_ADC_Start(&hadc1); HAL_ADC_PollForConversion(&hadc1, HAL_MAX_DELAY); uint32_t adc_value = HAL_ADC_GetValue(&hadc1); Using ADC in non-blocking mode with interrupt You can use ADC in non-blocking mode with interrupt. تحميل ملفات المشروعhttps://almohandes. and change the Speed in RPM Constant block to external mode in the model. Test the SAADC Example application by performing the following steps: Compile and program the application. You start it, either by software or trigger (timer/gpio) and it does one or a sequence of conversions. This voltage is not good to be injected directly to the STM32 ADC. The conversion core can consist of more than 16 channels, and the order in which the channels must be converted can also be programmed. Parameter setting The data is right-aligned, the continuous conversion mode is on, and the scan mode can be set to Enable after setting the number of conversion Set th. c Project: 1deus/tmk_keyboard. STM32 microcontrollers support two ADC conversion modes: regular and injected. With my configuration the ADC convert only once and then never reach the HAL_ADCEx_InjectedConvCpltCallback again. The ADC1 can be found in the Pinout & Configuration Tab of the STM32CubeIDE under “Analog”. Therefore, few ADCs are usually embedded in a MCU. This section provides functions allowing to configure the DMA for ADC. ADC_ExternalTrigConv = DISABLE;" you actually assign it to zero like this "ADC_InitStructure. Under Categories, go. For example if the sensor has output voltage of 1. C 98. 2 Mps. * @brief This example describes how to use a ADC peripheral to convert * several channels, ADC conversions are performed successively * in a scan sequence. Stm32 adc injected conversion mode example ik Fiction Writing With my configuration the ADC convert only once and then never reach the HAL_ADCEx_InjectedConvCpltCallback again. Regular and Injected. STM32F103 ADC Status Register: 11. Figure 1. 7 References. share 0. Successive approximation analog-to-digital converter.  · ADC Introduction in STM32. The settings that I use for ADC: -Synchronous clock mode by 1 (72 MHz) -12 Bits. com/adc-conversion-time-frequency-calculation-in-stm32/ Single channel using Poll for conversion. /* Note: in this example, ADC group regular end of conversions */ /* (number of ADC conversions defined by DMA buffer size) */ /* are notified by DMA transfer interruptions). For example, ADC modules 1, 2, and 3 that corresponds to channel 12 can use the PC2 pin to measure the voltage. First of all, I need to convert 2 analog values simultaneously because I plan to compute a. For example, ADC modules 1, 2, and 3 that corresponds to channel 12 can use the PC2 pin to measure the voltage. This is the simplest ADC mode. STM32 F4 - ADC in Dual Mode Simultaneously. All control bits related to configuration of injected conversions, When ADSTART=JARDSTART=1 and ADDIS=0, The software is allowed to write. Sep 24, 2022 · ADC Peripheral features: (STM32F429XX) 1. Joined Feb 21, 2017 Messages 5. & hold analog to digital conv.  · ADC continuous conversion STM32F103. Note: This application note is not delivered with a firmware example of this mode. If the voltage is 2 V the result'll be:. stm32-adc driver to handle the resources available for each ADC such as channel configuration and buffer handling. The following example shows how you can get an ADC conversion result in blocking mode. The result is stored in one of the injected result channel for the interrupt. ADC Features (2/2) Single and continuous conversion modes Sequencer-based scan mode for up to 16 conversion External trigger option for both regular and injected conversion Channel by channel programmable sampling time Discontinuous mode on regular and injected groups Self-calibration Left or right Data alignment with inbuilt data coherency. The sampling rate is 72M/ (19. Open STM32CubeIDE Create a new project using the NUCLEO-L496ZG board Give a name to the project Initialize all peripherals with their default mode settings by clicking on Yes Configure ADC1 We will do a continuous conversion mode on channel 9 which is PA4. Do use with polling: 1. July 22, 2015 adc, arm, stm32. 사실 regular and injected conversions는 어떤 모드라고 하기 보다는 conversion 방법 중 하나라고 할 수. The settings that I use for ADC: -Synchronous clock mode by 1 (72 MHz) -12 Bits. I am going through your provided link in detail now. Now let's see an example to measure analog voltage input using STM32F4 discovery board ADC in single-channel and single conversion mode.  · We will be comparing the arduino ADC with STM32’s ADC. STM32F4 ADC in Continuous Conversion Mode. Single conversion mode • Simplest of all modeADC performs single conversion of a single channel and stops after completion of the conversion Single conversion mode (cont. I have also enabled the Continuous Conversion, it’s not needed though. Injected Group 의 우선순위가 높기 때문에 Regular Group 의 ADC 수행 중 Injected Group ADC 요청이 발생하면 Regular Group 은 선점되고 Injected Group 의 ADC 가 우선 수행된 후 재개 됨. Sequencer: Indicates a regular or injected mode sequencer. Arduino library for ADS1015 - I2C 12 bit ADC and ADS1115 I2C 16 bit ADC: ADS1110: ADS1110 Driver (16-BIT ADC with Onboard Reference, PGA and I2C Interface) ADS1115-Driver: Lightweight arduino library for the ADS1115 ADC converter IC: ADS1115_WE: A library for the ADS1115 ADC: ADS1118 library. I'm puzzled about how to hardware trigger the ADC (in burst mode) from a Timer1 Match. Injected mode is a high priority preemption conversion. To understand simple things, let's go with the simplest case - single conversion mode. Examples are provided to explain low level programming and particularly how to use the software package provided by ST. This is useful, for example in motor control application , to delay conversion until after some event is complete (such as transistor switching) so that the conversion noise is reduced. The result is written to a common register, that the DMA takes care of. The ADC Setup is shown below. Change PA0 to ADC1_IN5. HAL_ADC_Start(&hadc1); HAL_ADC_PollForConversion(&hadc1, HAL_MAX_DELAY); uint32_t adc_value = HAL_ADC_GetValue(&hadc1); Using ADC in non-blocking mode with interrupt You can use ADC in non-blocking mode with interrupt. void ADC_SoftwareStartConv (ADC_TypeDef* ADCx) e. When i fit the model the result is moves between 0~1 not. Bit 2 ADSTART: ADC start conversion command This bit is set by software to start ADC conversion. STM32H7 Dual ADC Regular Simultaneous Mode with DMA and Timer Trigger. The results of these conversions are stored in their own registers that can be read by software. This is the simplest ADC mode. All written to run on a Nucleo-144 board with an STM32F767ZI. Queue Injected Context Mode: Injected Queue enabled with Mode 0 (2 contexts, last active) But the program only interrupt once. The conversion core can consist of more than 16 channels, and the order in which the channels must be converted can also be programmed. DMA requests can be generated at each end of conversion when the ADC output data is ready. Single conversion mode is useful only for slow applications where we need to take A/D conversion 1-2 samples per second only. This option is available only when you select Injected group in. [] Example execution: From the main program execution, the ADC group regular converts the selected channel at each trig from timer. I'm trying to sample a 1MHz signal with the DMA method. In ISR, Repeat step 2 to configure ADC for the next channel. With my configuration the ADC convert only once and then never reach the HAL_ADCEx_InjectedConvCpltCallback again. Taking the synchronization rule mode as an example, the synchronization rule mode is that ADC1 and ADC2 convert a regular channel group at the same time, ADC1 is the master, ADC2 is the slave, and the conversion result of ADC1 is placed in ADC1_ The lower 16 bits of DR and the result of ADC2 conversion are placed in ADC1_ The upper 16 digits of Dr. Feb 06, 2021 · Yes, ADC callback is called from an interrupt handler. • The self calibration for single-ended and differential input. Stm32 adc injected conversion mode example ik Fiction Writing With my configuration the ADC convert only once and then never reach the HAL_ADCEx_InjectedConvCpltCallback again. Various regular modes can be possible, like single, continuous, and group. 5+12)= around 2. 5+12)= around 2. 5+12)= around 2. py: bare-bones USB oscilloscope. Once you start an injected conversion sequence by software or trigger. This is useful, for example in motor control application , to delay conversion until after some event is complete (such as transistor switching) so that the conversion noise is reduced. . costco gas prices vernon hills, thrill seeking baddie takes what she wants chanel camryn, genesis lopez naked, swac basketball officials camp, tualatin high school yearbook, my hentaicomics, their wife novel, tori welles porn, 123movies fifty shades darker movie, literotic stories, baynet crime, autozone stafford va co8rr