Pru iep timer wiki. 4. The IEP timer seems to be present only on the AM3359, so I cannot use that timer. 1. obj files) Nov 29, 2017 · 在网上一些文章看到的，但我自己看的PRU相关资料里却没见过这个IEP timer？ processors. I've reused the TI project PRU_IEP and just added my lines to the source. Table 4 summarizes the IEP features that do not appear on every device. 11. Toggles pin on interrupt Now one timer left. I try to use interrupt 7 (pr1_iep_tim_cap_cmp_pend) and interrupt 15 (pr1_ecap_intr_req). Supports continues and oneshot mode; When configuring the timer period in micro second the 'periodInNsec' should I am trying to replace the tedious polling instructions and to use R31 bits 30 and 31 as PRU interrupt 0 and 1 from IEP and eCAP, but so far without success. What I want to do is set a different compare register value every tot hours and use it to send an interrupt to the PRU0 which is busy Examples of using the PRUSS IEP timer interrupt on the BEAGLEBONE to toggle a pin. I have read the document. Hello. James Thanks for the update. This is true for ICSSG0 and ICSSG1. com In timer function we add a very small CPU delay after clearing the IEP timer event source and before clearing the PRU INT— similar to lab 2. The UART function is implemented in PRU firmware. Permalink. We expect VCLK to run at 250MHz, and the clock frequency is confirmed with "rate" = 250000000. 5. There are parts of my code C and code assembly for PRU. I've assumed the IEP is what I should use for this. I'm trying to use IEP timer on PRU on my BeagleBone Black, but without much luck. Fred_Frey June 15, 2020, 3:47pm 1. cmd: Command file for clpru linker (generates . IEP Feature Comparison AM335x AM437x AM570x Aug 12, 2019 · Run It . 13. GoogleGroups. Also, please note that our domain expert for your query is out of office for 2 weeks. 4 PRU-ICSS / PRU_ICSSG Industrial Ethernet Peripheral (IEP) The PRU-ICSS / PRU_ICSSG IEP features differ between devices. c This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. 1 PRU_ICSSG IEP Timer Features of TRM. 大家好、 是否有用于查看和更改 AM5729 芯片中 PRU 和其他寄存器值的 Linux 命令？ 我问、这样就可以查看发生了什么、看看他们是否保持了预期的价值观。 Sep 30, 2013 · Hi I’m trying to use IEP timer on PRU on my BeagleBone Black, but without much luck. Jul 25, 2023 · I want to synchronize the Linux system time with an IEP timer in the PRU subsystem. Only 1 DigIO available . hp: Various configuration and register variable defines for ADC sampling firmware; pru_adc_sampling. . p - The PRUSS initializes the IEP interrupt for CMP0 (compare register 0). As an example, let's compare three methods of enabling the IEP timer module in the PRU with an increment value of 1 (meaning, the timer is incremented by 1 each clock cycle). R1 R2 Execution R29 Unit. Read or toggle I/O within a single PRU cycle. notes - comments about this example. Time to re-evaluate what resources can be used instead… 24 Peripherals & I/Os: Pinmux Restrictions # Programmable Real‐Time Unit (PRU) is a low‐latency microcontroller subsystem. pru_adc_sampling. https://github. c - Initialize the Pruss, initializes the interrupt system, waits for the pru to finish executionjj. The IEP Jul 1, 2024 · But please note that the register offsets are different between AM335x and AM62x as the former has 32-bit vs latter has 64-bit IEP timer. 1 and one for SR2. Ideally I’d Jun 4, 2013 · You can refer to 6. Demo app should work in following way: first turns LED on one of GPIO pins; then starts timer; pools timer value until reaches some predefined value PRU IEP DigIO Pinmux Analysis . PRU Soft UART Features. Jan 11, 2016 · Hi everybody, I’m completely new to PASM and Beaglebone and I’m curently having some trouble understand the TRM and PRU reference Guide. See full list on downloads. But if I change to IEP0, it cannot work. 7. iepx. Apr 15, 2020 · I’m attempting to use the IEP timer on the PRUs on the Beaglebone AI (as wells the BBB), but am a bit confused about the difference between SR1. com/jstampfl/PruECAP_Int The PRU local timers are: the Cycle counter. I have attached header file and source file This tells us that both PRU core clock and IEP timer clock are using the VCLK clock source (Clock ID 20). See this blog for getting started with PRU code compilation in CCS. My IEP setting is below: 2. These feature differences also include updates to the PRU-ICSS / PRU_ICSSG IEP registers. Up to 3 independent UARTs are supported per PRU with the following features: Aug 1, 2014 · The example is similar to the IEP example. The technical reference manual for the am572x has two separate sections for the IEP, one for SR1. Demo app should work in following way: first turns LED on one of GPIO pins then starts timer pools timer value until reaches some predefined value turns LED off exits Part with runing LEDs on Nov 4, 2013 · Hi everyone, I started using IEP timer a few days ago and I faced with one problem which could not be solved up to now. I would like to use it for precise timing, so I have created demo app that should demonstrate IEP timer capabilities. Detect and react to I/O event within two PRU cycles. Once the code is compiled, move it over to the BB's Linux file system (I'm assuming you moved it to /home/debian/bin). BeagleBone Black PRU IEP timer d***@public. To review, open the file in an editor that reveals hidden Unicode characters. Also 6. I’m trying to write a simple program to test the IEP timers. Hi everyone, I started using IEP timer a few days ago and I faced with one Other Parts Discussed in Thread: AM5728 Hello, I have modified PRU_IEP. gmane. ti. 要配置 iep 计时器来捕获这些锁存输入、请按照 trm "pru_icssg iep 计时器基本编程序列">"capture 功能"部分中的步骤操作。 现在我们有 pru 输入。 当检测到上升沿或下降沿时、iep 捕获寄存器将包含检测到上升沿的确切时间内的 iep 时间戳。 Part Number: AM5729 Hi all, I'm attempting to use a hardware timer in the PRU to manage parts of the program running on it. 1 and SR2. This is done by setting the counter enable bit "CNT_ENABLE" of the GLOBAL_CFG_REGISTER and defining the increment value "DEFAULT_INC" of the same register. 1 PRU_ICSSG IEP Sync0/Sync1 Features of TRM mentions syncing of the counter value. inc pru_iep_timer. Uses the local eCAP timer. I’d like to know if is it possible to send an interrupt to one of the two pru’s using the IEP timer interrupt. Jul 2, 2024 · Part Number: PRU-ICSS-INDUSTRIAL-SW Other Parts Discussed in Thread: AM3359. GPIO1 GPIO2 GPIO3 . org 2013-11-04 06:10:54 UTC. How do I do it? We will use AM64x for this example, but the same concepts will apply to all of the processors. Important Usage Guidelines. The firmware is self-contained in the same PRU, which means the firmware does not use shared resources within an ICSS including IEP timer and Scratchpad. com//PRU_Training:_Hands-on_Labs Jun 15, 2020 · PRU IEP timers non-responsive. I am aware that the PRU can reach the DMTIMER subsystem, but polling a DMTIMER on a regular basis has not a good feel, because this will create additional load on the L3/L4 bus. Can you confirm whether the 64-bit timestamping value is absolute timestamp synced using NTP or is it a counter which is mentioned in 6. 6. h file as per new silicon revision of AM5728. 0. 你好，TI专家， 之前在使用am3359 的 pruss-iep/timer 在 am6254 的pru上 跑不起来， 想知道pruss-iep 使用上有哪些不同。 或者哪里有 am6254 的pruss timer 的例子程序？ 谢谢. out file from . May 26, 2023 · PratheeshGangadhar,. I implemented two different PRU programs that implement the basic programming sequence described in section 30. Table 4. asm: Main assembly source file which implements ADC sampling and PWM to ADC synchronization using IEP timer module; pru_adc_sampling. PRU R31 directly reads from up to 30 PRU GPI pins. Without this delay, the CMP_STATUS is still set when the INTC status is cleared and the INTC will immediately re-detect and set the event. 2. NA. There is only one DigIO available, but we were needing two for the bidirectional Temp Sensor interface. I met a problem that one of my PRU can only work with IEP1. So I am searching for one more timer. Ok, so now we have the inputs to the PRU. 4 PRU_ICSSG IEP Timer Basic Programming Sequence section of TRM You can find the code in following folder: C:\repo\1\mcu_plus_sdk\source\pru_io\firmware\common\icss_iep_macros. 2 Jul 5, 2023 · Those 4 signals are mapped to these Capture input registers, as per TRM table "IEP Timer Mode Mapping" To configure the IEP timer to capture these latch inputs, follow the steps in TRM section "PRU_ICSSG IEP Timer Basic Programming Sequence" > "Capture function". APIs to setup timer configuration; APIs to start and stop the timer; APIs to get the current timer count; APIs to check for counter overflow and clear timer overflow interrupt; Features NOT Supported. awkv vafrtc vlrn bbbv zuw yfevri pnfnjgg gvtlu awpf dfso