ChTheo/RFG_stm32_ADC_STM32F429
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Made two minimal, surgical fixes to stabilize ON/OFF splitting.

Browse Source 
What I changed

  - Core/Inc/main.h:76
      - Set ADC_BUFF_SIZE from 50 to 64 so each half is even (32). This keeps the “i &
        1” parity consistent across half-buffer boundaries.
  - Core/Src/stm32f4xx_it.c:388
      - Fixed N after splitting the first half: ADC_proc.N = (ADC_BUFF_SIZE/2 -
        Sweep_state.curr_step_start_DMA_N)/2;
      - Previously it used (Sweep_state.curr_step_start_DMA_N)/2, which was wrong for
        that segment.

  Why this helps

  - With ADC_BUFF_SIZE=50, half-size is 25 (odd). That flips ON/OFF labeling each half
    because i & 1 parity shifts by 25, mixing levels and driving avg_ON and avg_OFF
    together.
  - The N bug skewed normalization, further flattening differences between averages.

  How to verify

  - Build and flash: make && make flash.
  - Observe avg_ON/avg_OFF over CDC. They should now differ consistently; inverting
    meандр should swap them cleanly.
  - If still needed, I can add a global sample counter (sample_seq) for fully robust
    ON/OFF classification without relying on buffer indices.
This commit is contained in:
Theodor Chikin
2025-12-19 23:41:15 +03:00
parent 186ad1939a
commit 985dbcc87b
18 changed files with 2868 additions and 2866 deletions
Download Patch File Download Diff File Expand all files Collapse all files

66
build/usbd_cdc_if.lst
View File

@ -1,4 +1,4 @@
ARM GAS /tmp/ccod7tUW.s page 1
ARM GAS /tmp/ccdbIjhy.s page 1
1 .cpu cortex-m4
@ -58,7 +58,7 @@ ARM GAS /tmp/ccod7tUW.s page 1
29:USB_DEVICE/App/usbd_cdc_if.c **** /* Private define ------------------------------------------------------------*/
30:USB_DEVICE/App/usbd_cdc_if.c **** /* Private macro -------------------------------------------------------------*/
31:USB_DEVICE/App/usbd_cdc_if.c ****
ARM GAS /tmp/ccod7tUW.s page 2
ARM GAS /tmp/ccdbIjhy.s page 2
32:USB_DEVICE/App/usbd_cdc_if.c **** /* USER CODE BEGIN PV */
@ -118,7 +118,7 @@ ARM GAS /tmp/ccod7tUW.s page 1
86:USB_DEVICE/App/usbd_cdc_if.c **** * @{
87:USB_DEVICE/App/usbd_cdc_if.c **** */
88:USB_DEVICE/App/usbd_cdc_if.c **** /* Create buffer for reception and transmission */
ARM GAS /tmp/ccod7tUW.s page 3
ARM GAS /tmp/ccdbIjhy.s page 3
89:USB_DEVICE/App/usbd_cdc_if.c **** /* It's up to user to redefine and/or remove those define */
@ -178,7 +178,7 @@ ARM GAS /tmp/ccod7tUW.s page 1
143:USB_DEVICE/App/usbd_cdc_if.c **** CDC_Receive_FS,
144:USB_DEVICE/App/usbd_cdc_if.c **** CDC_TransmitCplt_FS
145:USB_DEVICE/App/usbd_cdc_if.c **** };
ARM GAS /tmp/ccod7tUW.s page 4
ARM GAS /tmp/ccdbIjhy.s page 4
146:USB_DEVICE/App/usbd_cdc_if.c ****
@ -238,7 +238,7 @@ ARM GAS /tmp/ccod7tUW.s page 1
181:USB_DEVICE/App/usbd_cdc_if.c **** {
49 .loc 1 181 1 is_stmt 1 view -0
50 .cfi_startproc
ARM GAS /tmp/ccod7tUW.s page 5
ARM GAS /tmp/ccdbIjhy.s page 5
51 @ args = 0, pretend = 0, frame = 0
@ -298,7 +298,7 @@ ARM GAS /tmp/ccod7tUW.s page 1
232:USB_DEVICE/App/usbd_cdc_if.c **** break;
233:USB_DEVICE/App/usbd_cdc_if.c ****
234:USB_DEVICE/App/usbd_cdc_if.c **** case CDC_SEND_BREAK:
ARM GAS /tmp/ccod7tUW.s page 6
ARM GAS /tmp/ccdbIjhy.s page 6
235:USB_DEVICE/App/usbd_cdc_if.c ****
@ -358,7 +358,7 @@ ARM GAS /tmp/ccod7tUW.s page 1
272:USB_DEVICE/App/usbd_cdc_if.c **** * Data to send over USB IN endpoint are sent over CDC interface
273:USB_DEVICE/App/usbd_cdc_if.c **** * through this function.
274:USB_DEVICE/App/usbd_cdc_if.c **** * @note
ARM GAS /tmp/ccod7tUW.s page 7
ARM GAS /tmp/ccdbIjhy.s page 7
275:USB_DEVICE/App/usbd_cdc_if.c **** *
@ -418,7 +418,7 @@ ARM GAS /tmp/ccod7tUW.s page 1
86 .LVL3:
87 .loc 1 316 1 view .LVU16
88 0002 7047 bx lr
ARM GAS /tmp/ccod7tUW.s page 8
ARM GAS /tmp/ccdbIjhy.s page 8
89 .cfi_endproc
@ -478,7 +478,7 @@ ARM GAS /tmp/ccod7tUW.s page 1
139 .thumb_func
141 CDC_Init_FS:
142 .LFB243:
ARM GAS /tmp/ccod7tUW.s page 9
ARM GAS /tmp/ccdbIjhy.s page 9
153:USB_DEVICE/App/usbd_cdc_if.c **** /* USER CODE BEGIN 3 */
@ -538,7 +538,7 @@ ARM GAS /tmp/ccod7tUW.s page 1
285:USB_DEVICE/App/usbd_cdc_if.c **** if (hcdc->TxState != 0){
192 .loc 1 285 3 view .LVU31
285:USB_DEVICE/App/usbd_cdc_if.c **** if (hcdc->TxState != 0){
ARM GAS /tmp/ccod7tUW.s page 10
ARM GAS /tmp/ccdbIjhy.s page 10
193 .loc 1 285 27 is_stmt 0 view .LVU32
@ -598,7 +598,7 @@ ARM GAS /tmp/ccod7tUW.s page 1
234 .loc 1 292 3 is_stmt 1 view .LVU45
293:USB_DEVICE/App/usbd_cdc_if.c ****
235 .loc 1 293 1 is_stmt 0 view .LVU46
ARM GAS /tmp/ccod7tUW.s page 11
ARM GAS /tmp/ccdbIjhy.s page 11
236 0024 10BD pop {r4, pc}
@ -641,32 +641,32 @@ ARM GAS /tmp/ccod7tUW.s page 1
272 .file 3 "Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_def.h"
273 .file 4 "Middlewares/ST/STM32_USB_Device_Library/Class/CDC/Inc/usbd_cdc.h"
274 .file 5 "USB_DEVICE/App/usbd_cdc_if.h"
ARM GAS /tmp/ccod7tUW.s page 12
ARM GAS /tmp/ccdbIjhy.s page 12
DEFINED SYMBOLS
*ABS*:00000000 usbd_cdc_if.c
/tmp/ccod7tUW.s:21 .text.CDC_DeInit_FS:00000000 $t
/tmp/ccod7tUW.s:26 .text.CDC_DeInit_FS:00000000 CDC_DeInit_FS
/tmp/ccod7tUW.s:41 .text.CDC_Control_FS:00000000 $t
/tmp/ccod7tUW.s:46 .text.CDC_Control_FS:00000000 CDC_Control_FS
/tmp/ccod7tUW.s:66 .text.CDC_TransmitCplt_FS:00000000 $t
/tmp/ccod7tUW.s:71 .text.CDC_TransmitCplt_FS:00000000 CDC_TransmitCplt_FS
/tmp/ccod7tUW.s:93 .text.CDC_Receive_FS:00000000 $t
/tmp/ccod7tUW.s:98 .text.CDC_Receive_FS:00000000 CDC_Receive_FS
/tmp/ccod7tUW.s:131 .text.CDC_Receive_FS:00000018 $d
/tmp/ccod7tUW.s:136 .text.CDC_Init_FS:00000000 $t
/tmp/ccod7tUW.s:141 .text.CDC_Init_FS:00000000 CDC_Init_FS
/tmp/ccod7tUW.s:171 .text.CDC_Init_FS:0000001c $d
/tmp/ccod7tUW.s:260 .bss.UserTxBufferFS:00000000 UserTxBufferFS
/tmp/ccod7tUW.s:267 .bss.UserRxBufferFS:00000000 UserRxBufferFS
/tmp/ccod7tUW.s:178 .text.CDC_Transmit_FS:00000000 $t
/tmp/ccod7tUW.s:184 .text.CDC_Transmit_FS:00000000 CDC_Transmit_FS
/tmp/ccod7tUW.s:240 .text.CDC_Transmit_FS:00000028 $d
/tmp/ccod7tUW.s:249 .data.USBD_Interface_fops_FS:00000000 USBD_Interface_fops_FS
/tmp/ccod7tUW.s:246 .data.USBD_Interface_fops_FS:00000000 $d
/tmp/ccod7tUW.s:257 .bss.UserTxBufferFS:00000000 $d
/tmp/ccod7tUW.s:264 .bss.UserRxBufferFS:00000000 $d
/tmp/ccdbIjhy.s:21 .text.CDC_DeInit_FS:00000000 $t
/tmp/ccdbIjhy.s:26 .text.CDC_DeInit_FS:00000000 CDC_DeInit_FS
/tmp/ccdbIjhy.s:41 .text.CDC_Control_FS:00000000 $t
/tmp/ccdbIjhy.s:46 .text.CDC_Control_FS:00000000 CDC_Control_FS
/tmp/ccdbIjhy.s:66 .text.CDC_TransmitCplt_FS:00000000 $t
/tmp/ccdbIjhy.s:71 .text.CDC_TransmitCplt_FS:00000000 CDC_TransmitCplt_FS
/tmp/ccdbIjhy.s:93 .text.CDC_Receive_FS:00000000 $t
/tmp/ccdbIjhy.s:98 .text.CDC_Receive_FS:00000000 CDC_Receive_FS
/tmp/ccdbIjhy.s:131 .text.CDC_Receive_FS:00000018 $d
/tmp/ccdbIjhy.s:136 .text.CDC_Init_FS:00000000 $t
/tmp/ccdbIjhy.s:141 .text.CDC_Init_FS:00000000 CDC_Init_FS
/tmp/ccdbIjhy.s:171 .text.CDC_Init_FS:0000001c $d
/tmp/ccdbIjhy.s:260 .bss.UserTxBufferFS:00000000 UserTxBufferFS
/tmp/ccdbIjhy.s:267 .bss.UserRxBufferFS:00000000 UserRxBufferFS
/tmp/ccdbIjhy.s:178 .text.CDC_Transmit_FS:00000000 $t
/tmp/ccdbIjhy.s:184 .text.CDC_Transmit_FS:00000000 CDC_Transmit_FS
/tmp/ccdbIjhy.s:240 .text.CDC_Transmit_FS:00000028 $d
/tmp/ccdbIjhy.s:249 .data.USBD_Interface_fops_FS:00000000 USBD_Interface_fops_FS
/tmp/ccdbIjhy.s:246 .data.USBD_Interface_fops_FS:00000000 $d
/tmp/ccdbIjhy.s:257 .bss.UserTxBufferFS:00000000 $d
/tmp/ccdbIjhy.s:264 .bss.UserRxBufferFS:00000000 $d
UNDEFINED SYMBOLS
USBD_CDC_SetRxBuffer