VesiScan BASIC origin: Piezo + IMU firmware initial code

- nRF52840 + SoftDevice S140 BLE firmware
- Piezo ultrasound TX driver (2MHz, 8ch MUX)
- ICM42670P IMU 6-axis driver
- Echo AFE chain (ADA2200 + ADC121S051)
- BLE NUS command parser (mpa/mpc/mdc/mec/maa/msp)
- FDS flash config storage
- pc_firm parser and ADC driver included

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

project/dfu/secure_bootloader/main.c

@@ -3,7 +3,7 @@
  * @author	CandyPops Co.
  * @version	V1.0.0
  * @date	2022-09-05
- * @brief   
+ * @brief
  ******************************************************************************/
 
 #include <stdint.h>
@@ -21,7 +21,7 @@
 #include "nrf_bootloader_info.h"
 #include "nrf_delay.h"
 
-#define POWER_HOLD	NRF_GPIO_PIN_MAP(0,8)		// power hold port for medithings device 
+#define POWER_HOLD	NRF_GPIO_PIN_MAP(0,8)		// power hold port for medithings device
 
 static void on_error(void)
 {
@@ -90,7 +90,7 @@ int main(void)
     nrf_gpio_cfg_output(POWER_HOLD);
     nrf_gpio_pin_set(POWER_HOLD);		// The medithings device performs power hold when the power button is pressed for 3 seconds.
                                     // And then, The medithings device loads the bootloader.
-	
+
     // Must happen before flash protection is applied, since it edits a protected page.
     nrf_bootloader_mbr_addrs_populate();
 

project/dfu/secure_bootloader/pca10056_s140_ble/arm5_no_packs/secure_bootloader_ble_s140_pca10056.uvoptx

@@ -73,7 +73,7 @@
         <LExpSel>0</LExpSel>
       </OPTXL>
       <OPTFL>
-        <tvExp>1</tvExp>
+        <tvExp>0</tvExp>
         <tvExpOptDlg>0</tvExpOptDlg>
         <IsCurrentTarget>1</IsCurrentTarget>
       </OPTFL>
@@ -336,7 +336,7 @@
 
   <Group>
     <GroupName>Application</GroupName>
-    <tvExp>1</tvExp>
+    <tvExp>0</tvExp>
     <tvExpOptDlg>0</tvExpOptDlg>
     <cbSel>0</cbSel>
     <RteFlg>0</RteFlg>

project/dfu/secure_bootloader/pca10056_s140_ble/config/sdk_config.h

@@ -96,68 +96,15 @@
 // <h> DFU mode enter method 
 
 //==========================================================
-// <e> NRF_BL_DFU_ENTER_METHOD_BUTTON - Enter DFU mode on button press.
-//==========================================================
+
 #ifndef NRF_BL_DFU_ENTER_METHOD_BUTTON
-#define NRF_BL_DFU_ENTER_METHOD_BUTTON 1
+#define NRF_BL_DFU_ENTER_METHOD_BUTTON 0
 #endif
-// <o> NRF_BL_DFU_ENTER_METHOD_BUTTON_PIN  - Button for entering DFU mode.
- 
-// <0=> 0 (P0.0) 
-// <1=> 1 (P0.1) 
-// <2=> 2 (P0.2) 
-// <3=> 3 (P0.3) 
-// <4=> 4 (P0.4) 
-// <5=> 5 (P0.5) 
-// <6=> 6 (P0.6) 
-// <7=> 7 (P0.7) 
-// <8=> 8 (P0.8) 
-// <9=> 9 (P0.9) 
-// <10=> 10 (P0.10) 
-// <11=> 11 (P0.11) 
-// <12=> 12 (P0.12) 
-// <13=> 13 (P0.13) 
-// <14=> 14 (P0.14) 
-// <15=> 15 (P0.15) 
-// <16=> 16 (P0.16) 
-// <17=> 17 (P0.17) 
-// <18=> 18 (P0.18) 
-// <19=> 19 (P0.19) 
-// <20=> 20 (P0.20) 
-// <21=> 21 (P0.21) 
-// <22=> 22 (P0.22) 
-// <23=> 23 (P0.23) 
-// <24=> 24 (P0.24) 
-// <25=> 25 (P0.25) 
-// <26=> 26 (P0.26) 
-// <27=> 27 (P0.27) 
-// <28=> 28 (P0.28) 
-// <29=> 29 (P0.29) 
-// <30=> 30 (P0.30) 
-// <31=> 31 (P0.31) 
-// <32=> 32 (P1.0) 
-// <33=> 33 (P1.1) 
-// <34=> 34 (P1.2) 
-// <35=> 35 (P1.3) 
-// <36=> 36 (P1.4) 
-// <37=> 37 (P1.5) 
-// <38=> 38 (P1.6) 
-// <39=> 39 (P1.7) 
-// <40=> 40 (P1.8) 
-// <41=> 41 (P1.9) 
-// <42=> 42 (P1.10) 
-// <43=> 43 (P1.11) 
-// <44=> 44 (P1.12) 
-// <45=> 45 (P1.13) 
-// <46=> 46 (P1.14) 
-// <47=> 47 (P1.15) 
 
 #ifndef NRF_BL_DFU_ENTER_METHOD_BUTTON_PIN
 #define NRF_BL_DFU_ENTER_METHOD_BUTTON_PIN 25
 #endif
 
-// </e>
-
 // <q> NRF_BL_DFU_ENTER_METHOD_PINRESET  - Enter DFU mode on pin reset.