https://e2echina.ti.com/support/microcontrollers/hercules/zh-CNTelligent Community 13https://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1077364/tms570ls3137-ep-ecmp-hr_lr-high-100ms-1s-pwm/3882109Tue, 09 Jun 2026 00:18:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:997d4fbd-dfaf-40f0-888d-132dc131060bDaniel您好 https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1395974/tms570ls3137-when-the-coprocessor-is-used-to-output-pwm-the-waveform-is-inaccurate?tisearch=e2e-sitesearch&keymatch=TMS570LS3137%25252520ECMP# https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1031446/tms570ls3137-tms570ls3137-how-to-generate-20-pwms-by-het-ide-tool-are-there-any-examples/3853577?tisearch=e2e-sitesearch&keymatch=TMS570LS3137%252525252520ECMP# 请您参考以上相关说明进行针对性修改https://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1077364/tms570ls3137-ep-ecmp-hr_lr-high-100ms-1s-pwm/3881232Sun, 07 Jun 2026 22:50:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:10187fe3-b0cc-46c3-af82-bb2505e15e76Eirwen已经收到了您的案例，调查需要些时间，感谢您的耐心等待。https://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1077364/tms570ls3137-ep-ecmp-hr_lr-high-100ms-1s-pwmSat, 06 Jun 2026 07:01:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:19e04b50-fce4-4d5a-98c4-2590713b14eczheng liPart Number: TMS570LS3137-EP Other Parts Discussed in Thread: TMS570LS3137 ;============================================================================= ; het_pps_program_optimized.het ; 目标: TMS570LS3137, HET1 80MHz, HR ON, LR prescale /4 → LRP=50ns ; 引脚: NHET1[5] = 本地PPS输出, NHET1[1] = 参考PPS输入 ;============================================================================= ;----- 常量定义 (LRP=50ns) ----- PPS_PERIOD .equ 20000000 ; 1s 周期 = 20M LRP PPS_PULSE .equ 2000000 ; 100ms 脉宽 = 2M LRP PPS_OUT_PIN .equ 5 ; 本地输出 PPS_REF_PIN .equ 1 ; 参考输入 ;============================================================================= ; L00: 主时基计数器 (CNT) ; reg=A: 统一时基 ; max=PPS_PERIOD: 1秒周期 ;============================================================================= L00 CNT { reg=A, irq=OFF, max=PPS_PERIOD, data=PPS_PERIOD } ;============================================================================= ; L01: 本地PPS上升沿 (ECMP) ; 比较值由 L02 (MOV64) 动态更新，初始为0 ; 匹配时置高 N2HET1[5] ;============================================================================= L01 ECMP { reg=A, irq=OFF, hr_lr=HIGH, en_pin_action=ON, pin=PPS_OUT_PIN, action=SET, next=L02, cond_addr=L02, data=0, hr_data=0 } ;============================================================================= ; L02: 远程更新 L01 (MOV64) ; 程序顺序执行，若无远程请求则立即通过 ;============================================================================= L02 MOV64 { remote=L01, comp_mode=ECMP, reg=A, en_pin_action=ON, next=L03, cond_addr=L03, pin=PPS_OUT_PIN, action=SET, data=0, hr_data=0 } ;============================================================================= ; L03: 本地PPS下降沿 (ECMP) ; 比较值由 L04 (MOV64) 动态更新，初始为0 ; 匹配时清零 N2HET1[5] ;============================================================================= L03 ECMP { reg=A, irq=OFF, hr_lr=HIGH, en_pin_action=ON, pin=PPS_OUT_PIN, action=CLR, next=L04, cond_addr=L04, data=0, hr_data=0 } ;============================================================================= ; L04: 远程更新 L03 (MOV64) ;============================================================================= L04 MOV64 { remote=L03, comp_mode=ECMP, reg=A, en_pin_action=ON, next=L05, cond_addr=L05, pin=PPS_OUT_PIN, action=CLR, data=0, hr_data=0 } ;============================================================================= ; L05: 参考PPS上升沿捕获 (WCAP) ; 捕获时触发中断 (irq=ON) ;============================================================================= L05 WCAP { reg=A, irq=ON, hr_lr=HIGH, pin=PPS_REF_PIN, event=RISE, next=L06, cond_addr=L06, data=0, hr_data=0 } ;============================================================================= ; L06: 无条件跳回主循环 ;============================================================================= L06 BR { next=L00, cond_addr=L00, event=NOCOND }tms570LS3137TMS570LS3137-EPhttps://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1059169/tms570lc4357-sep-sharing-flash-api-between-bootloader-and-application/3817650Wed, 25 Feb 2026 08:54:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:fbf48fca-1738-480d-9410-5cba0f8491baEirwenRefer below FAQ: (+) [FAQ] TMS570LC4357: How to write the data into the Flash Bank-0 - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums Here we are storing FAPI code into Flash Bank0 but before calling its API's we moved it to the RAM and calling FAPI's from RAM. You can follow similar procedure using your bootloader.https://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1059169/tms570lc4357-sep-sharing-flash-api-between-bootloader-and-application/3813441Thu, 19 Feb 2026 04:02:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:0d5c8ef6-6ab3-4d61-9df2-b7d77de184ceEirwenHello, we have received your case and the investigation will take some time. Thank you for your patience.https://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1059169/tms570lc4357-sep-sharing-flash-api-between-bootloader-and-applicationWed, 18 Feb 2026 18:15:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:882312ca-c522-46c8-9a23-d7895320133dBob ApplePart Number: TMS570LC4357-SEP Would it be possible for an application to use the F021 Flash API copied to SRAM by a bootloader (ref. spna241)? I assume it would be if care is taken to copy the API into dedicated, shared SRAM. Otherwise: What considerations (ex. application clock settings) are important to make this work? Is example code available? The goal is for both bootloader and applications to be able to update EEPROM memory. The application could also compile with the flash API, but it uses more space and requires an additonal copy-to-SRAM step. Related: https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/908/CAN-Bus-Bootloader-for-Hercules_5F00_spna241.pdf航天和国防ECTETMS570LC4357TMS570LC4357-SEPhttps://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1008139/lm3485-updated-information/3630611Tue, 22 Jul 2025 04:14:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:c9336146-04a4-4574-a89d-7af130c6d79dVivian GaoDo you have any update?https://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1008139/lm3485-updated-information/3624844Tue, 15 Jul 2025 04:41:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:dc2551ab-cff9-40d9-be97-fde720265612Vivian GaoIn the shared waveforms, the IC _VIN levels are as follows NG no res: 22.6V (should be with Res) NG with res: 23.8V (should be No res) 1. Can you please double-check this? How NG with No res< NG with res?? I believe the caption is interchanged. OK with res: 20.6V OK no res:23.8V 2. However OK with res IC_VIN is lower i.e the drop across the series res is higher in case of OK unit wrt NG unit. Is the input current same for both units? 3. inductor current peaks seem different for OK unit and NG units. Please note the input current. 4. I noticed Q1 is NMOS in schematic. It is supposed to be PMOS. Can you please double check?https://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1008139/lm3485-updated-information/3623523Mon, 14 Jul 2025 01:17:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:dca06f08-92c5-48e3-a3b8-239892890c55ELFIN JIANGThere are test values, there are resistors that are IC-VIN lowerhttps://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1008139/lm3485-updated-information/3621721Fri, 11 Jul 2025 01:45:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:8bda5409-fae2-4291-8e99-89b48d5ac040Vivian Gao你能否测量/保持光标在波形的最小值和最大值上？请你再检查一下NG波形。使用RES时，Vin看起来更高。https://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1008139/lm3485-updated-information/3621709Fri, 11 Jul 2025 01:38:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:6da30719-62f7-40c6-8b43-b2747c08a187ELFIN JIANG你好 请问这个有进展了吗？https://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1008139/lm3485-updated-information/3617307Tue, 08 Jul 2025 01:56:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:48759ba7-4517-4f2f-87a7-57e4158d487aELFIN JIANG1-Yellow: Inductor current waveform 2-Blue: DC supply 23.5V/2.1A 3-Purple: IC-VIN pin waveform 4-Green: Battery voltage waveform (13.5V)https://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1008139/lm3485-updated-information/3616012Mon, 07 Jul 2025 00:12:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:e4341acf-301d-405f-922c-70582263f253Vivian Gao要了解应用程序问题，请在问题出现时捕捉波形(良品和不良品都要) a) Vin_before 2.5 series resistor b) Vin pin of the IC c) Output, d) Inductor current 当a）2.5欧姆串联电阻器未连接b）纯R负载时，问题得以解决，问题可能与应用程序相关的某些工作点有关。https://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1008134/tps40210-tps40210dgq/3613549Fri, 04 Jul 2025 07:52:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:d2a6dd3e-672d-4de8-b987-46d1b79cfd60Lydia您好， 感谢您使用 e2e 论坛。 您能否提供更多信息以了解问题？ 通常情况下、输出电压纹波与输出电容、开关频率和电感器的选择密切相关、但在这里我需要更多信息来提供清晰的说明。 必要的信息将是： -拓扑, VIN, VOUT 和负载条件 -原理图信息,如果可用 -测试条件:当您看到20mV 波纹和当您看到200mV 在此基础上、我们应该能够解释您看到的行为。https://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1008139/lm3485-updated-information/3613541Fri, 04 Jul 2025 07:11:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:30647dd2-fb79-4ecd-b62f-34612d77674bELFIN JIANG在这个产品设计中。因为太阳能是给电池充电。所以需要根据电池剩余电量的情况调整电流，电压。。。所以在FB脚，接入了一个单片机的pwm信号。来调整输出的电压与电流https://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1008139/lm3485-updated-information/3613540Fri, 04 Jul 2025 07:07:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:c86f2c9f-0c5b-445f-9e35-e26e01d0d55aELFIN JIANG再补充一下前面的， 稳压电源的正极，经过大电阻，连接到芯片的vin。。。（这样做的原因是，需要模拟太阳能电池板的工作。因为太阳能电池板，输出电流越高，电池内阻就会越大，分压也就越多。。。因为实际的出货测试，没有实际的光照模拟环境，只能用稳压电源+电阻的方式模拟。）https://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1008139/lm3485-updated-information/3613522Fri, 04 Jul 2025 06:19:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:452d3a9b-4cce-4e32-b7cc-c54d1364e810ELFIN JIANG添加这个电阻，是模拟太阳能板那个阻止，正常是外接一个太阳能板子的，但是测试过程，就是用这个电阻来模拟这个太阳能板 它连接在输入电源和IC的VIn引脚之间，对吗？ ——从标出来这里串联一个电阻进去https://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1008139/lm3485-updated-information/3613519Fri, 04 Jul 2025 06:14:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:4285cff4-73bd-4bbf-baf7-29fa878bca56Vivian Gao此外，输入是什么？它来自太阳能电池板吗https://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1008139/lm3485-updated-information/3613513Fri, 04 Jul 2025 06:03:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:0c7f901d-0f30-435c-b461-106d2634632fVivian Gao哦，好的。谢谢你的确认。你们为什么要添加电阻？它连接在输入电源和IC的VIn引脚之间，对吗？https://e2echina.ti.com/support/microcontrollers/hercules/f/hercules-safety-microcontrollers-forum/1008139/lm3485-updated-information/3613512Fri, 04 Jul 2025 06:00:00 GMT91561404-af28-475a-b96b-cb6cbaadd097:72478ac6-65d2-4b8c-b712-762fdb88badcVivian Gao好的