From a54c3e3a66205209441bb9f6397b5c0b2ef76bba Mon Sep 17 00:00:00 2001
From: eddyem <eddyem@yandex.ru>
Date: Thu, 5 Feb 2015 13:26:50 +0300
Subject: [PATCH] added flash support

---
 with_opencm3/README           |   2 +-
 with_opencm3/flash.c          | 151 ++++++++++++++++++++++++++++++++++
 with_opencm3/flash.h          |  46 +++++++++++
 with_opencm3/hardware_ini.c   |  20 +++--
 with_opencm3/hardware_ini.h   |   4 +-
 with_opencm3/ircontroller.bin | Bin 15804 -> 18472 bytes
 with_opencm3/main.c           |   6 +-
 with_opencm3/main.h           |   4 +
 with_opencm3/user_proto.c     |  16 +++-
 9 files changed, 231 insertions(+), 18 deletions(-)
 create mode 100644 with_opencm3/flash.c
 create mode 100644 with_opencm3/flash.h

diff --git a/with_opencm3/README b/with_opencm3/README
index d7d934b..a70646d 100644
--- a/with_opencm3/README
+++ b/with_opencm3/README
@@ -1,7 +1,7 @@
 The work begins
 First PCB have been prodused, so I need "only" to solder elements & finish the code
 
-Pinout of MCI is in file schematics/STM32_PINS
+Pinout of MCU is in file schematics/STM32_PINS
 
 
 -- OLD --
diff --git a/with_opencm3/flash.c b/with_opencm3/flash.c
new file mode 100644
index 0000000..2f26838
--- /dev/null
+++ b/with_opencm3/flash.c
@@ -0,0 +1,151 @@
+/*
+ * flash.c - functions to work with STM32 flash memory
+ *
+ * Copyright 2015 Edward V. Emelianov <eddy@sao.ru, edward.emelianoff@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#include "flash.h"
+#include <libopencm3/stm32/flash.h>
+
+/*
+ * this is a default values of stored data
+ * they could be changed by appropriate command
+ * align by 2k & make size 2k for using with high density devices
+ */
+#define FLASH_BLOCK_SIZE   (2048)
+#define FLASH_WRONG_DATA_WRITTEN 0x80
+
+const uint8_t _flash_buffer[FLASH_BLOCK_SIZE] __attribute__ ((aligned(FLASH_BLOCK_SIZE)));
+
+/**
+ *  these are default values
+ * they can be changed in runtime to change data stored in flash
+ */
+flash_data Default_stored_data = {
+	.magick = FLASH_MAGICK,
+	._ADC_multipliers = {100000,100000,100000,100000,100000,100000,100000,100000, // TRD
+		26, // shutter
+		2   // power
+	},
+	._ADC_divisors = {1,1,1,1,1,1,1,1, // TRD
+		25, // shutter
+		7   // power
+	}
+};
+
+flash_data *Stored_Data = (flash_data*) _flash_buffer;
+
+uint32_t flash_write_data(uint8_t *var, uint8_t *data, uint16_t datalen){
+	uint32_t start_address = (uint32_t)var, page_address = (uint32_t)Stored_Data;
+	uint32_t *dataptr = (uint32_t*)data;
+	uint16_t i, rem;
+	uint32_t ret = 0;
+	// check start address - it should be inside
+	if((start_address - page_address) >= FLASH_BLOCK_SIZE){
+//		DBG("bad starting address\n");
+		return 1;
+	}
+
+	flash_unlock();
+	//Erasing page
+	flash_erase_page(page_address);
+//DBG("erase flash ");
+/*	if(FLASH_SR_EOP != (ret = flash_get_status_flags()))
+		goto endoffunction;
+*/
+//DBG("OK\nwrite");
+	rem = datalen % 4; // remainder
+	datalen /= 4;      // round to 4
+/*
+print_int(datalen, lastsendfun);
+DBG(" blocks of 4 bytes\n");
+*/
+	// copy data by blocks of four
+	for(i = 0; i < datalen; i++, dataptr++, start_address += 4){
+		// write data word
+		flash_program_word(start_address, *dataptr);
+/*		if(FLASH_SR_EOP != (ret = flash_get_status_flags()))
+			goto endoffunction;
+*/		//verify
+		if(*((uint32_t*)start_address) != *dataptr){
+			ret = FLASH_WRONG_DATA_WRITTEN;
+			goto endoffunction;
+		}
+/*
+DBG("Written: ");
+print_int((int32_t)(uint32_t*)dataptr, lastsendfun);
+lastsendfun('\n');
+*/
+	}
+	// remainder
+	if(rem){
+		uint16_t halfwords[2] = {0,0}, n = 1;
+		if(rem == 1) halfwords[0] = *((uint8_t*)dataptr);
+		else halfwords[0] = *((uint16_t*)dataptr);
+		if(rem == 3){ halfwords[1] = *((uint8_t*)dataptr+3); n = 2;}
+		for(i = 0; i < n; i++, start_address += 2){
+			flash_program_half_word(start_address, halfwords[i]);
+			if(FLASH_SR_EOP != (ret = flash_get_status_flags()))
+				goto endoffunction;
+			//verify
+			if(*((uint16_t*)start_address) != halfwords[i]){
+				ret = FLASH_WRONG_DATA_WRITTEN;
+				goto endoffunction;
+			}
+		}
+	}
+endoffunction:
+	flash_lock();
+/*
+DBG("end, status: ");
+print_int(ret, lastsendfun);
+lastsendfun('\n');
+*/
+	return ret;
+}
+
+
+/**
+ * checks magick in start of data block and fill block with default data
+ * if flash is uninitialized
+ */
+uint32_t check_flash_data(){
+	if(Stored_Data->magick == FLASH_MAGICK) return 0;
+	DBG("copy data\n");
+	return flash_write_data((uint8_t*)Stored_Data, (uint8_t*)&Default_stored_data, sizeof(flash_data));
+}
+
+/**
+ * printout all data stored in flash
+ */
+void dump_flash_data(sendfun s){
+	int i;
+	P("magick: ", s);
+	print_int(Stored_Data->magick, s);
+	P("\nADC multipliers: ", s);
+	for(i = 0; i < ADC_CHANNELS_NUMBER; i++){
+		if(i) P(", ", s);
+		print_int(ADC_multipliers[i], s);
+	}
+	P("\nADC divisors: ", s);
+	for(i = 0; i < ADC_CHANNELS_NUMBER; i++){
+		if(i) P(", ", s);
+		print_int(ADC_divisors[i], s);
+	}
+	s('\n');
+}
diff --git a/with_opencm3/flash.h b/with_opencm3/flash.h
new file mode 100644
index 0000000..75bb3d9
--- /dev/null
+++ b/with_opencm3/flash.h
@@ -0,0 +1,46 @@
+/*
+ * flash.h
+ *
+ * Copyright 2015 Edward V. Emelianov <eddy@sao.ru, edward.emelianoff@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#pragma once
+#ifndef __FLASH_H__
+#define __FLASH_H__
+
+#include "main.h"
+#include "user_proto.h"
+
+#define FLASH_MAGICK ((uint32_t) 0xAA55A55A)
+
+typedef struct{
+	uint32_t magick; // magick value
+	// A-D value[x] = ADU * ADC_multipliers[x] / ADC_divisors[x]
+	uint32_t _ADC_multipliers[ADC_CHANNELS_NUMBER];
+	uint32_t _ADC_divisors[ADC_CHANNELS_NUMBER];
+} flash_data;
+
+extern flash_data *Stored_Data;
+
+#define ADC_multipliers  Stored_Data->_ADC_multipliers
+#define ADC_divisors     Stored_Data->_ADC_divisors
+
+uint32_t check_flash_data();
+void dump_flash_data(sendfun s);
+
+#endif // __FLASH_H__
diff --git a/with_opencm3/hardware_ini.c b/with_opencm3/hardware_ini.c
index 1885d68..59806bc 100644
--- a/with_opencm3/hardware_ini.c
+++ b/with_opencm3/hardware_ini.c
@@ -28,8 +28,8 @@
 #include "main.h"
 #include "hardware_ini.h"
 #include "onewire.h"
+#include "flash.h"
 
-#define ADC_CHANNELS_NUMBER    10
 /*
  * Due to inconvenient pins position on STM32F103VxT6 I had to make this strange location:
  * my channel #   ->   ADC1/2 channel #
@@ -223,9 +223,10 @@ void ADC_calibrate_and_start(){
  * ==> approximately this is equal to val*26/25 or val + val/25
  */
 int shutter_voltage(){
-	int val = SHUTTER_SENSE_VALUE;
-	val += val/25;
-	return val;
+	uint32_t val = ADC_value[SHUTTER_SENSE_NUMBER]; // 8
+	val *= ADC_multipliers[SHUTTER_SENSE_NUMBER];
+	val /= ADC_divisors[SHUTTER_SENSE_NUMBER];
+	return (int)val;
 }
 
 /**
@@ -235,9 +236,10 @@ int shutter_voltage(){
  * ==> approximately this is equal to val*2/7
  */
 int power_voltage(){
-	int val = POWER_SENSE_VALUE * 2;
-	val /= 7;
-	return val;
+	uint32_t val = ADC_value[POWER_SENSE_NUMBER]; // 9
+	val *= ADC_multipliers[POWER_SENSE_NUMBER];
+	val /= ADC_divisors[POWER_SENSE_NUMBER];
+	return (int)val;
 }
 
 /**
@@ -248,8 +250,8 @@ int power_voltage(){
  */
 int TRD_value(uint8_t num){
 	uint32_t v = ADC_value[num];
-	uint32_t r = 100000 * v;
-	r /= (uint32_t)(4096 - v);
+	uint32_t r = v * ADC_multipliers[num];
+	r /= (uint32_t)(4096 - v) * ADC_divisors[num];
 	return (int) r;
 }
 
diff --git a/with_opencm3/hardware_ini.h b/with_opencm3/hardware_ini.h
index e6c14db..cea53de 100644
--- a/with_opencm3/hardware_ini.h
+++ b/with_opencm3/hardware_ini.h
@@ -128,8 +128,8 @@ void ADC_calibrate_and_start();
 #define SHUTTER_OP_DELAY (200)
 
 // ADC_value[8] is U36, ADC_value[9] is U10
-#define SHUTTER_SENSE_VALUE  (ADC_value[8])
-#define POWER_SENSE_VALUE    (ADC_value[9])
+#define SHUTTER_SENSE_NUMBER  (8)
+#define POWER_SENSE_NUMBER    (9)
 int shutter_voltage();
 int power_voltage();
 int TRD_value(uint8_t num);
diff --git a/with_opencm3/ircontroller.bin b/with_opencm3/ircontroller.bin
index 268f998677b595286da953a94fb87ad476060ce3..a7fef30d1b202c7e0eb168edc8c4cbc7e2e8504e 100755
GIT binary patch
delta 8367
zcma)B4SbW;xj*llH|d)+ZPQQEw9q$63n?jBXbWjU7g|WuCbWpikg012l@yW2wm?z0
z1V1)(>bShqaTy|Bb(ibMM$2-wK&{hz@7$fb2GLcV^K~DBy15qy=Br8W|Gc5d=6?I#
z{C>}SKAz`1&vTx0p65L0<iwqa_b>sniU_^e5PlP&=kI|0-H*~xpxv}AwtRWa-}AV#
z{R{n<=mUz-U0+6gNttOz`JjEfn(#5ebl-Ftnnn1Z0kp-0PZkmW9AFyvkIPkG5L{jM
zMg1QW|9|je2UBlg<-WMaYV{k&U@2kgGI1|+hX!^NI9@DZ_gh$bO@iY6V`Mx-L3j?7
ztCkV|CV-(?e3PvV{BMj1V`m*sMm8UFjB!RHYz9*A@rTNMoa@%%><&_O_y)5p9l0~j
zH3-6?R$<=fVI4~UnA&Z2jh*#7(~<0PGET=D0pG>=c^^kQ4|$4RrmjPtpvyFr=PGxZ
zM$?hfw8ljwGTS<&vS)?&d#VF2qc0ulNI&XfEhhgDJY_y&C$e$Z-uC<<rrIeN?&8e(
z{ypv0E`x7hYxal6sK!ZZh^*fA)VW&Kdn24(HTgi4)ZXuTMp{>M<HVfF<uyYShDkeU
z9tm=jI+TA7=G4?k%WC`+%{A*L=G8dm-v=L*RswT07|=|*P<bQRhVIGW4(Ym@uTHE%
z&-1}m==oL9CiS5;8qAyA1jgLt2DFX@H`Z`cZ_P~;FUyC5w}I|>@R&3R%;UkV$$pgk
zg11ci(f<<&8miGv+@avMq31_IpF{*A=Omwy80!N8=>Cf+IU*a?5@)3|p)G&;Xqj_4
z)0mFjomymk2m@HTGsfWSjj{N)#Z>sZVjR9Lv2RMmLL|o0?lJjyNNw(FEY|WAZ#_R^
za6NQZPlz0e(Y^yIt#G*YG4wD?&V_H57&)8_d|kT6LoBAQuSttMrXhCj+Aw2z?@XOi
zUlryoZ=YH0fl9TZGxb=UvQb8UAzAM(l<E~R`6(M1f09}%El}FpRIR6MsBH8qrNyS^
zD`hHKBh3THljj)LF-|Pcp0T+Y`S#RIi3H^Ru^AGPzY{BhJ~eTpL{aDCMUqA!l3HNo
zBZ*w4uPLbmMQO6!W9*`{S(MUYHbnYLrQkZ;$}Cb#A4Jz3`XE}q=Y!~)BQG_lKmYW{
zV`o#}!^Xs}X8_bWct9^h`0t~A02?(xcWsy@{EyLi1MoiJ>TDwX9_1N;9{4?UFrXK7
zg(0KY=w5bS%dm1F$(TFkU>7T|PY5oRnYHj%RyJL#3#b<*h?%h%tb&WXXjsF_df-^O
zXNp*f$cTcgHh@742p^cT3ha@wvj(S1UVnn<8K=>}ItxRk-conxh2S!*c~Wbh;b!F(
z$&9GZ3*<Uh{zLq7tA&-{k5h4i3nN;dy0~UJE1v?MmFHa+XuBkD^;D%IFF*xa6oKUs
zNQD|g`QE$C`4DA*DAr6Y5Ve7oe*#vNJ$Es<5dzTjBg$OC`=QF?XmwujUrQ&!${!ym
zhRh`R5D`@JsYLVnIkhVJwS-DOoftdIL+)>n8v>zhAms#O)<fWlM7BrYuJ@X{^zDLc
zeV5MC66I=|&p)xcCCb;Z^6z2-0uE(=^(c*MP!`~=WSj($t0RIT1Z8ip0I!iL=Xq@{
zEvesBC7kE8(0X=?n02ndTB#*lVJ)xDrLq>gOT4V?L{sOgwH5)@q?qm6Smy=7&&vNY
zMIEpR!l?t&?{&(zQ2Dy?%`!toOgxe$1axK{bZ6y81sRLdI#KFd@Xcud?u*bK8sn4`
z)Sl7@)SmlC%6#iLPi|>%8A-^pzm<&B**vJ=Z@7ftzu9=(m+@LpUDP0GJ$u1H^=WVx
z(?$#O>gH=(Ubz@ttxB-+u)<PdC?>NyHI-nUs})!COUvC;2;zvqze_NJV=RNf5dyjA
zmx<5tm3rIMVOOEM5hOoLh^P74UC$>%%~>ba=XllE<M$*;<p<HCL%%*Vb~bv+)2>;L
zv#}YD15Z<#`H;@VTW7+gRv5Dj#{6a?W7M4qxDHnGsABePSEiMWi(T49C9J$4p5<vi
zzkhYUVCu^3miA-fbJ}tpj1QYK^0~BlQfuQ_IUN&IS|g{D3*(|m_pRyK9n_VudS3ib
zU58F39~d=aN_wrBo9zVUeKB!$_Ck#Xc0k_)+4V&o$EeNej^Y#`LP4{5GTR2?tH3{7
zU}lLG`qGlQn3>9B+<oMtHt_v%#1+Bc3Kkvu^=!RPd`92Qz7P{X)6Zg#ia9xDmIaVd
z2cXiaQI}zO4cZF<wE&w=Y|ptyV?%X;PJB40g!!8Ibk0?`bc618Ks^wYp3>4Wg&~87
zF%yxsIISEu)?=|854=*m8*c4H7<nW{Ba7g=$E-rsVdaNn8sN?5fF%=LSb6QSHUr_W
z&nNtXJh3UaQk#nUb~m)8BR7hha$D!Ka#yTDvbY8GOhmcS21(eRWm_07M|*BeClLAl
z7;|`m&$649Ur&p_$!!iCj4}cz>D(Mh_C>LwkH|<l-hlSI3Nx|vkEoYo_Qb(B6R7K3
zkbZ<TUdC+osoP&Y=T!Z0gq5>nR-e%*bQ#8?m}wGF5mI3`I*-oHh(RkWYTI<}IuD#U
zs`Cn6!mzfDmCs(45Paz~+!5qK<AWIFZ6*8wgopqELW2nAALbI?A1ZVcc}7}%J+Csr
z%Hz>{n?Dcp9;1(yAC0Q%8R%EJX*NS-`6Ze(T>!Hw0A)Z=glhnfkj|@i>A>h@$~vTN
z&vL)LhN-jqiTn=QPP-~hbE$M>blfpU$5I}2Tsm@O+!30Ev838Kt{3|Z=Jnr8Ke3Y@
zc8{m6v|RGu2xH$rp4YxGT4+F=l@FvhT+y$)-2Z6WM&q!25T)Ln$=&uM|DqQ5!?J@d
z;wOf!i*8T5!F+4liSMmxgGXgP&}?%ZAIS>q(8DEj-87i<RwCg9lBcF>v7K&6i4W%+
z`NnawoH*~z7Jr<-yX5l}v*`1YI!)wlGMkhB<0k5Re@cnof=U(?{RJJl59VNLF+hhh
zH&=YKz)_xxJe?-id!xH*9W?!P6DQpZy?||nqNT98fYLfbDx{eIs!_kq$X`o|+Y48*
z^Hbt$g|(D%yl_$To?Of*l(Ujls;X=J`IFh+j`Gh(1pfjT_PlJEBBPunxE7$kYDySo
ztac>3g3CYFRqh{q1Y`H)iv2~iHI&UGx#Gd1h11n{issIuy^fGmAm()BXu8b9xypvD
z!zQ<>Efsk@Db6YutPdwS*@+~xY}nw=MfbPS7SPtNv<~OEwdnb#*j-#!LS+rX@-yL8
z_oI9c@M4R&x7fm5Cx(ixi<c#<{6vV3F@PE@6CLnBmj*;b1>P(y=qhZI&UDq#d{@J8
zt~(FRXN!3y)|w)WwYf55$@rBc4WT?FTUmB>I9E|GJtf{;A_$-1v=VSFU<B$CRNTo+
zqB4WUgC+CXpHGQzmKe*AO<l?SZ&ef78BX@WDRKD>TkiK26HY5F-Z8^gaU*gHtDl}4
z45Gp>rqYprPYFZohPCc2=)O|?*^I&f75LdD;l(%?93i!<cQ~uP$mbo+@6sSSWaM`f
z9NdmxK;Af>I^!7IhcQG?oc>TMGL}Aa@v1<TH~Vze$|`rYFBLIORVrnPB7K2m9b)YH
z6GFS$UFbKrG0-R#;iuH*3O6JFF%X~C_8M+C^oH`vxXI1JYoxf^wQ4lKqrklY?EadV
zp_G3~RQa<dYR<AzHJB8*8L7Z+_3JT}4-=d@8|+?+BM!me{807SF*1Gtiqe?wz{H$@
zN6}u3lI{YU`>0C;xXhvBF2KD2N66x_cu5s+wzy~d8TpCCLZlT>A=O}zxy^Oiv8|~^
zY>8Gg?eid6WMsrQeCH_NI_29yzh>^@-Sv#DLLJkxsI81#5o0VYQccRE6uAZ$z<f7S
z_9(v*e@##$LVqPqmn@?_H8ain)TJ~$&h=V{h`n<{y@auQCsPrk82<~?-<-&petm*2
zd>#%7YR^X4bKhurN4a80Z(^oWx?xYw94Lj^D&xk>W)qI3B5$XTT#WaXzh@p&SF;nE
z>KS3Rlx59>u^HJA*Gjxq@8-<3rHyMb5_61eJ-RmI?#x1dfZ%+k>AwfdQga_hIUmcR
zE~l2}SMqKqV6O2o@{YJ;SgkM`iW957iyJ=FN-Z$G(HtSpWp)|esmN#X8SRBb#fZgO
z_R`4@&Z=Zi!|U|=l9B><DfYt*Krx^YV0NV<@5JpxYP){i;5N9mlEIw?pf))Y<45z{
zL<;07WUt2Qb=fg?0vb}y{~P5SfVTjr0UrWB1AGoh0qAVBD+r$lSkR7hYpBGfTB5c$
zC@QH`_4OqsHHx6SVw{WE8p3l|&Q-kP;dr%DJ`lHh%KbF~$*Pd`#)Op|cD>MHR#xZE
zc&6MDuko9tx*^`qggHb{JAz4mxY(n@S(qagdyA18rXm~TB}&;9$3YwEO_NGoHY@2O
zG4kRV^$A99h-JZdt{W~IeofG~v68;6<@_lU$gCKz9H(^VbY{~oQ;pfJ2J`~xn$b<D
zhxt`@Zi2IGCRlrRI9F2J^kLr3N*Ws<&T?mYN}*8sF*T0ubfj|J;P<yuzTX0mhXIr~
zgZm-P<!T8L|1zUkv*AQ4@`Dqi&RE0#AtpMEO*TXtq%3p`6yb7Lk1+=^mb&dz;PoWn
zF~GrGalf%ScbbHDKb|XoVw|mG<cE|DG#C|4r9vem4@7wn1Dg@+lgM7kIHf(P&}UdZ
zl`Gy{x;{|r!Lvw9g)i6jYT40?q_5b;xvo9Q$O~c)9ATSNou53ybBoBF9BFNoD~JCs
zVsN{+_|``GrTd#5VP^682v=WM(YoTZaIvgXcglpFKf%m<KFSHtM>T>fTsDMytyVJa
zRw=z)_`M-^HgL6AvcT+|bDWmU`L9p4+Qujs6kN+7Hk~B$nWSJ-yR_l@D7&O(1*Zsl
zq4`g55h+;3$QPm*TxG-6C3O!Or&kg~Nb9xwOg`STzgaiIyLm*(P*m_`wXLzx3r;%n
z08(Sa7^PkR^!3lYpqLlY(18v=+|ATcrg+8=qjf&G9@aD(ouTyXjgl&rgpCLHdQict
zKD|%1&c`&QA|FL{^Uj4cKJ_ioX**O>wnDk%GUeoEN*PutZ7%vqMU{933j8vF&u;-A
z0vw_Il{6OM?IOXsjKhr07|wBPq|OWXtx_Q&xIJMU)w#2=-FRdeh?)sv`+S12W?`;&
z+(#VFROIRxGw)^Rz|Z8$Y`!HZ=|=L0oQS4{!;Jmba2Z}$Ohe@^vBp%+M8!6f)jcOc
zM(ImOI<h8F+eK_E!}(Hgxiw4^MNgt-ma49{t7Xy#m%3-T^TMuGSx_k_A&k!Q82x~*
zY>84XN{Bx-)v_}a;zuS+V1G&tG0eh~Bm7*GpC6xzWXOU2-3XwM9HfYG8c;3;(AN+8
zRL6%j9+Qt*XzHRKMdW0fUbRw@6-X!P#wP$3D1ydP->&AVx2Rvy{w$9n6EuCv$opyf
zD98mobRp^LCnKlEc@R;;c^^kRi5yMhQr_K$tl5=HMH=HojzwD$Z-10d;q7Pz@;h5s
zDsp{%xjP+kCDW1iWGeDvA{Dtio{GF4r(>Hic5W&i`A#AoxhM6EtI4xurLpS?*KF6b
zuEx&OQ9?H0@h#oxs~%qLUfiCF%!?B1lCJq+cuSN%T-6QReV!GniMOL<PdaiQYPgeE
z!CrHRVF~|yC9cebE40PaktY*&-w)xTcLdnCG#BsKo+a6RN1M5mRpJfhWq}hXD?HrA
z@-<~chI(QTO?(jD7$kEhp#lw#C~E~_Uu$$E6*(A3%aDvTr<uiqKr#DT`K!)_b71Ra
zWH|kUGc+F3OA)m*sb!pdurAbW(-$DRmFU{h`yq{OFl#`dFH$s-GGNy(4Rg{=Jd!<;
zoat3bvrs#bEc4Rr_*9a<W@Iawaz)CDgo4P;Df+c5-&v^w+zjiY#RjI4$cvReTZ&QW
zqImZq^6XT$Hyd$HeXfqIzy9SBD;{8ZcfgEAc3_dWzoex09C6~ravp$oRKs>C*99l=
zhwd_0b<D=Hb)>3RYRpxrwWV;!z;lt)O5~3d7O!pkajAvKA0}9+OCOMiu#%^d)u7f5
zC6aVR1+p3<|0;o9?~L4y3?>~3r0MmgfIf~55cw75o$Y0$5d@D&waPmco*RG(0fXC>
zC2ggL5#Dvh##x&J$;d~^61Pq&jB-n#Y}SRP;e2mCPPt^{bTU)ElgyL!EA==|laYyJ
zj#9o3yU_OBl-;MpA|vsYaKA&ucVo)D@r%RFhxT^By#UTO9|t#)Roc8VGbzF1zbsZ%
z+}V_j^d@J6FP=_d&JAPLKC3$!`FfH&S4-@^mq+%s3X0UV$y!C~Pm?p1c1Kb?Rbk<0
zPB9XZ%csOt#oQk5M09L3Oh0|NJ_fl@1GX)r5B<nbfg{jw4ayY&e`rPr=c>Dr*liQV
zD@zo<%oUOgl%D8R(9FcSa|ZYQBiK>mLqch7GV=Q=9kA4zaQ+ki%W|KEJSvOI@j?d8
zi(hbw?+7>RzKta@V+8{V@f!0gi+}1pIEKTOjJz?W6Htd^WF*a1BrQvbN6bwnwnW!x
zS!Wp@pOTTKQzoT!OzpJ@tS%v1ES7~{NTjo-v)haMwB%_kyn()b*pxotGcy;rTk6^0
z9T%Uo%-uM6oZ<*JFr`0D$6wmWbQ2>qBC{d#yhQD=N~z6Hu*xaVkI^xd=QK^(Wtwt@
zX1yOY;N>$OZL+Rq0$Et|EDw<zNSO}@e}H>ejgX|08&t*?8dCKF>y#qt3NK2Ujpo2q
z+C)BRGSqpV1I^64c^-lripke3GpwnrDu`$OIDeT&qtIwTLqobnp`i{6zJZE#I*VTg
z<^~E701t~7UmB`?w+KTu?-nYoS+Fi>S4#z#TZZ<cE-KUs48bJ`iQXl(G9vMGa!Di|
zYZ#*wnU=Rkk*Q&wMW`IzQ`y8aUE(iiH)s!0%l}(D_mrre)62xgfjK{C9u=3^TFh2C
zs8S(;Q~6qC{!-0)xz-|c;&*M!)O7q)V%T<k9i45n9E50fdrMSb!=Br{ke1Z0bh=h%
z(+c)7jlY%l@u76&-Kkfz5~uhvM@a9we?*O=_@k-A<z_t%Zs~}0LVU2=p^McK{;T!)
zQ=tCno7J~ywB>kPa)i7?+2YLF8SI~2;@aBzx>p<UM<C$O4M!iYJ<YP~O2y4}Czy5O
zocb!(Z#>#jzn)>2w~Eg++(K~$i#nP<jOo4lm8`TT$}QQ~`doATEixViZ-QwZ26UC;
z*$M40!_obV_ONv=zV5A?dW4NVTe^1&gM9+o+9xbqzIbtCy>Lt4wyhg=M7L)3a-qLx
zpm$)fd+UatCP8d${EPh%+>?P2`g`$;x)XPFExdqXS%zGX#*HoFbxn7(_ce>ZZu)az
zMSp)^zgZvyzHNhpJ^cbC^z?7<+cMa_sYge?(cja3D{8`E&j23aripg+_V)<WI2{4e
z#+_yz)wGAQ8&Im##Qwe=;5*Q_t$zbJ4)opDBTS=u`U4>Uf-j+Bdbe)Ma3p>Ho~=C_
z$%ZX`1GMmU_iyUi2rKjp3W^d^94&jd3jY4S4Lt(`L{R~{3<|wldk1^FxAbDPfI;8r
z@4K~U>*Y!GZSUzH4D{UQ@9FOz+=dB(<Zov`t>%EQuYYjfhTi@S+j?Pz9sPY<H(j0s
z7GV(c>fQo28+QsBoxf;jl-H5#R<&h}(<H!5D>~N*w`}R&WL}~p8~Xe^g^k^V-8ynx
z_om(rw>Akxw`_TfaND*mgT4MOy*>Q{=&HHYyRmnB?*MF!W&h2Ro#IVP@8O=s4i(QW
zow4_7e(%-lz<1ExNxJ~bcDUlR#6kF+MVbB{;Oi(2i=an{=C-AH%55b46DX@u-UQI%
zZ~D?EJSqeJ2pC)Pw>&j0AvBZG@_D&g8a0O<7*ND9<Q2Lb`C{z2d4MGVhMcOUsSrib
syThSxGvuFv33T93DE&VJypEDA05Q-%14}Z*crPGD>LN8MxPwsmKPd1SHUIzs

delta 5803
zcmb6-Yj|75l`~hed?ml+XXIzDbZtkD9Y>CxM1CYFc5<y)a-0S?3n>M$fkffsAwoh0
zbdd<5&9aoHopu|-V}Y_Xyh>~%8WR*}vn-Tt%i2I%hfuhbmV}naIGf~N+tR&z<|<}^
z{Mc{xedo@ZnKS2{IdkTmGdi#rzkEjwtw%!nGQ`gVDE%6sul*Pe12)Xs6_ppS`8tm;
z_mAgXL?1JR{@~(?i<FsTR1LJ}T!=3hFJi`DTaNgf0ZK~{Zv{vfUraN{C)2L~zX<-n
z^JE=vvtz1j7Ez4YlVB;~6EFEOzTM&nG>AwMx8H^7pLI4LNusd~1>(&xjoJ~P2k=lk
zd4sEst)E6h^0e27=`TjT$<r1jRKTP)5J^;qv!u;K{5n+o=;aNPuH2!U+XUf2uh4XU
z!Uip4%;?S8NLci-I<PBHCRK!X1>#agv_PtoDn@n1sb@(@Ms;G;)R;Z--9U@v2<ys5
zJsRL#6_MKlm9a2tMD)G*j=sVuZt&3)akH~9vc0cGvWNHePRI^5%ZHi}{Z0IdDUa#o
zu({DRd3|4T<odofazBhe7cZY&1nsUkKbZ$@BHq}vbKKVCqtC~GDR(z@jhiM{LGM7k
zUtZnRJH8h1$KxS+YtxP6d6Snm#TdbQ7~B^xmIr~s{qf77_oH}`d`r_+Ft-hQ_r}-A
zJDawSM*-g*H_2c`I+BXX*o9=XYi*z+($^;i!d16b`c~uiijb~6sV#Ec1az31Gz?#)
zaqvy2P4Jybo8haZuac1qF(zHW;BvXs-vUMsYXcNnJJoX3BE^Sw<(Ouj!q%n6+$L>w
ziZ7rOm&lmzneoXj0pzL(b;<RCiYT{m`2=>ob4oPumI<@#?NbZ;UO43rRE8@@F^$YD
z@E6Mq3_i;=4@fG|=gYPJ7!%s8iGj*!<)~;(FVI{@D{2MueieD%n!+aU7!vOV+#-7<
zOx?3K;b1S4FR2xzgS~jENq%3w>`{P&$!`7pg6ET`)gPiU=4=>%`Q&;4=7ifY;<s^#
zUkdm_@H1}=KFo<GV6X%5%K^3l++{+-P0-!~Kw*9(hlJvUBk1t2I%CBg{f}wv9H8+K
zrcdjFWO8yYUc~ge3%CIIH9B%)mt7Pj^Evw<rdPlmM-wU%5y3=|Jg^3fc8<QIiUM~q
zdD`wX(H)0K+){GI52vlpd47)m({zUSz*%%DrfnCvL$3$ZMFxLC8aNy8dE(sQYD{Yl
z3IFhg1h*l9qmQe#UkK<rM5v`Kwh<U}PUHeso7qJcB&MwST>Khf2P5ZUBr_iY!Jk8K
z;B4d@Oh=BkA3}EQbJ#f_pFjdfKhwL<EbwsjPdZ1>>dDhQ(5PefM2=vhHWfQ_VI#R}
zP9V20H&_wM?GvO;u@LX-QO!-=XCB+oqw-Cdz5pT^drS+Cuz11w>;S=9>_Y&|`t}4U
zd-Hr?rmDU(RuHJF%(ZvwzBAd-n^KX}CQ)&oAJd;{3^$3T{<0vZdySq)EP<JOK@O%K
zQ5!fbL^%2fmEDn#(rmECn5r|re=$ZX0MB-^yF%J{VG-}Nf%2H<7$m<jNZvHQD`6y~
z{WC1ufyO+U;s-2Y(0d~$lC`VqSSri!gxGUM3Jcz3W&&at_~D)H<PmFa?&GNgQn9}s
zNIFyG4QoBOAVtnwYkZr!5dTx~!a*Q4Ir)T5;>Bv%$usGJv!Mv4vpU-fD5($7IM}Zf
z{K6*XNSWR}IvKPrE5meD%MNs(*}tJss0d}w=%FLzQCpP_({CGlm`#yaZEmo}_qFab
z_g>l<YUo=S$N}nxzD=QyFgq@eUaOJ(oI7jg)ZYzf!~?MN>O#mkvq40j&RJ&zzeqYj
z<v~oiT%Q?CohDN563Z4a35?yD+g9@Hmm<BHvo^zeW{OAJ$*Z~UL5|*)&Iw?M(0sBo
zT%K(`&Ifo1HSqP9hne=evhO9{NGurzn4~!-FM_d50mq($=d7`xjKTQ|kzSD4owtdL
za^#V`ZfDC3g2a>;Fo6ViY`SvgksOFXcMKu1IHD_mBRId(wG%Y`4nT%C5`G7KBhbGU
zU<bhU99fyavif>J8ELlLo-j+66M2DrLrKQ=IC&s{@s>|vVHzL`REz;z%$O7>>;ddV
zgmd{sGx*i#>AV13M6wI+tq&r|sWgiff^@gj1aSn@_tO@bcRFLPOt`@Gz>#kjApUAQ
zlqvb7xuDh>oeu9=x>i?yPrg;q+l=XOda3O43oz0*Z5~}J3wyHNOD3wI|HQNnvdAB&
z@qw1GYY#_jQe?cKJLZ_if?2lt%|KEFsX6N)1v6jXf%qR3WuoHEfR}^0kr(^E5BNR+
zd%_aLPBEO-_wQ3a(}Tmzr^K+sA%yJ7E{LS70Olu5up3*z=Eo#1a>TmU)@KVqQcBr^
zLP!|0uH|UQVpRz1r_2YTs2Dp0Ci1O7ybh+D4?+YG`U)`mG!M=pQS3+b;}kh+uZ>|^
znBLueeu57;!kC^;WwE>zG5M3HBR)irz03*)FD&!{Fa|8P?*i~9Y{4wa28^CaiBW4`
zw*UAbZWSYl9)P~D(KNvd6I~e{^CsC^#)GZXm4jp6L=CJ(4UVx~vboS{%S%0Wn;Xus
zIz{d;EbFL9ZD!rhlf$@i|Cp_BiCS!j2un*+ZWd{26|}j|Ox<ID8I3W6reKe#le|}W
z<HpZt{lM#!Ss#2qp0x)|&WF0)(&6Fk2^);uH=XZi;hGnb3^|1Ep7uayd1i(Mab4M}
ze;5{|9x9kVgp02BVEU`WXf^Wv+C&~N+Ecb;7B4$L+-gydqk6Oa)VEncyKa{FifcKb
z*iyVMe>@8g7Z$98c7uf+EB03D$~?#_yVbiqUUupH$j7{4C-aCRQdZJk#Av+<Q`js$
zV97d;>4_O~UCDax*%|V3iH9-%tYlgD+mJ^iiM)PPYiekU6i(&@*HxV#79uSYXion$
zjYiF~AhiJQnh{2^*a)?wAVrd)sz`DY*1l~aTT1IKjLoEl{J3<<9QvQ73uA25oA3$D
z1S5K7z${fp#i0s+#ac}%*F+i7%S=2RDFVZs95#)Zse|>$i~U7F!E0vfgYn8CyFVZL
z2>Oi9+Aj{}`K>Ubq>)@Q)D&US8w>7;H~C7>EB}4e&I|&|6$|E0#5cfAEQQt!u)33c
zugryiN1iGZmmf~oMUbGvN;TO8XU(>=;lctnQ54LEqgxM-HK5l;o28{g`Thcs`6w~X
z6Jz(oTDO#0YsmUyr9DvqQ7gMKYa-v!`nEKr$)v8lrbmZzg1pdorU2_onJz|Khj_mQ
zIEH~jfRY^p9U5brTzNr@IgL~ZVg(W}44gf>N>^0PPX2XX<+4@AIyLDQ+M!<it;RT7
z{Mo><?JL@Sb#LVSJRfIC6R*Raf5JGmxm}YR9q#Vmr&t)y7!=VzOzX-oG$DG~kkw%P
zT1tq5(WnFQ?%XjbU%~K9$=fd|{1~*Pty-|WeneB!N64n?Chooz*;C!&M)Yo-k)yE`
zENEkK<HDj3pf3Zw18~wp{#xCgKS#ob-?fmAntB_eJy1#^x=bh6)d;nSHt4*Oj*$3s
zh-hex(VjHuGps(akYCnpy3(5{>_=i_NLSv~%#vdWyB!mGev3SC_MY`7@XO7bW7Ou)
z36zI<aCBX1(UAN6I2N=0{MtsitX`j{Jastp3i=~xY=P9z(&7SW8|>sWVF}(&oKDeS
zuAxzf>;@K+<_RHp|3sm@txB9=v1x_YQ)6oNgnA~S_Kw~?G;sE=_1Pd?PYa_p0Y?NN
zlp`}rw?^)Bdbk3O9C5mE3HiWT9QzCG>LUPF6QdHSzTk0n7I0QDvxgR+ummc?cu7Sl
z3!*KetBitASC+q&F}4b{CZLEr%ENbcr`}>2o>@3Mz_Ozgo?n`>c2*D`?KKBjkELHt
z@g4pIXn-yTFF9oZ(d|&&psRZ!G#^cC%H}kp=hQWR$oey2+vy$%A?}c-#M0d`X47;f
zU(=MQ0iFfw^XYa!TMc17{j}84|Cm%SJtMUbyrUunIYVm?Hw-QJFYnWopUon%Gqf0Z
zTshkY50%!TOB%z0HKy_7D%#7OUsrtUVtCOk9D*_+(hLWuE2S!;ftkkegOwxaZjW(q
zS<c;lYqs1N9_co}Sx;7pm9Zml3IX%Es=>;ry$v<~YW#gQ97hW#LA<WqtV8P&gnhk^
zK&v_rLC+o^#sn|dl#v-hfWEM|mtTw@{Cpx8EUYQ6*?&F-F&9d1mT{SVkq7&jP3JNz
zi#qJQSS14P5)+s)=N>KIM3!U+Pwbj7%hgcbeVnQen&cY5{+y}|GB4kd&J>Ice>g2V
zS^FZCgv@^I`%t<F%8pjG)Q;N`l%1I|Y|!0m^!BH7f~;Q4nrcOxz8O0@EW+EFhjKUL
z(jURY9(G_xK1gt^PGnjN&EQQzaO_CpyUx0G^>Eb3(slh7XB}Y4G-Nb*p7=yWx6ZnP
z?zzWG529Dia!}v02T61@1oc@1V~3q$E9Q%WA9U`YWe&azqJXZ%jE7PY_(c2`M18X?
zbsiN9KupK1hh<}U1%+Uy6=oo3yL2&AI5d*-x~(xy**IP1x5>q-x$EcMwh4KtFjxp%
z)1actw9<5eoZFx4Z-6o1be_?6!TXB!_fI#5ZE)CFfPW!`m0*T8*fQ_HK4yYJz^?$f
z4j>9(b~jJHe;QGfwV=|8%Ha5q620z@4ox|s)&pNi=WtoxI@Ayr{hIP$s(H$T8pB72
z_w@>f)K^uHA+>h8+UOrq$qV%^{=r!c>2Lomd9QxqwYv_h$#r1*Ir%>Vxeox;L6!9o
zKrPH6(9a8P13)A(Z=G3cy#h75$4mRm48AviNpg`f5?13*JY$}+`~PtmJc`_~pxmP=
zm#Q|HW!BV`{zH*3<o*lDW3reW56ED4c&3ZIxZp~g8IHsW2bi8AHSYB;Sw9IE#4Bma
z3e_e6?%CIyk+jf|G&V!_x;x6AoC%Fq4phSHDXl!KR~YR9oycy1+cQJB2G<fVh+x}h
z+xs5ibE4<W@NY2Yg(C^Vd}ixpV?!IaVT|0@u<)AGFR?iU9?a<9VCye<GV@}HiGJ*a
zt1;slG8x#jGu(ye3tPi@&e1&Z1<ihgW)nPd7_VUVNX5d9cw|RY2ZuM3=bM*WeN5!z
zedg8V)8=iMlD}L08orOr_w?lT(74GIiu9VoBIU{5o>lN46%tmH*FA^HyDeVZQ;mqv
zZi14%X{2V!7K_ymRkSw|jOLIVyz@A@i#+LVw%xJ_@y`J~ylCV-?>ijV#gmshU&g!1
zce?7h!R(Pox;A0XyMoND*uv)ie&xE3hi7twx&53xsG2+X^*-A@^A;N00lX1NXaBOS
z=HYPz{flAbuPgU*1vX*T>K@_NtFPaAZHIuY<hfO!H#R}li-7_At^N}JTfnVgZOm~P
zeE^-)9pts{U0h)Y3G{qQ9$8aPrq)C)+qd7e-6@c*(mm#H!Dh&mB*xHkz#0I005Y8a
z_xrcSh)-S^FNO9)uoL3om=Lm5w;}#@58}T8?Fne}S`a_F6vm*<S_02-fE!xB%G1Ij
x!~(FDFUZffWC5RL8DSV5WBcMC1KmdfUIQ>T3eg(_(hQR&StVJh=yt^5e*pckg5LlD

diff --git a/with_opencm3/main.c b/with_opencm3/main.c
index bdf43c5..fe875e6 100644
--- a/with_opencm3/main.c
+++ b/with_opencm3/main.c
@@ -31,7 +31,7 @@ usbd_device *usbd_dev;
 
 uint8_t ADC_monitoring = 0; // ==1 to make continuous monitoring
 
-uint32_t ad7794_on = 0;
+uint32_t ad7794_on = 0, flash_status = 1;
 uint32_t ad7794_values[TRD_NO];
 uint8_t doubleconv = 1; // ==0 to single conversion; 1 to double (with currents reversing)
 #define ADC_direct()  setup_AD7794(EXTREFIN_1 | REF_DETECTION | UNIPOLAR_CODING, IEXC_DIRECT  | IEXC_1MA)
@@ -175,6 +175,7 @@ int main(){
 
 	usb_connect(); // turn on USB
 	shutter_init();
+	flash_status = check_flash_data(); // init flash block if uninitialized
 	while(1){
 		usbd_poll(usbd_dev);
 		if(usbdatalen){ // there's something in USB buffer
@@ -200,8 +201,7 @@ int main(){
 
 		if(Timer - Old_timer > 999){ // one-second cycle
 			Old_timer += 1000;
-			if(Shutter_State == SHUTTER_NOTREADY)
-				shutter_init();
+			// if(Shutter_State == SHUTTER_NOTREADY) shutter_init();
 //OW_fill_ID(0);
 			//gpio_toggle(GPIOC, GPIO12); // toggle LED
 			//gpio_toggle(GPIO_BANK_SPI2_MOSI, GPIO_SPI2_MOSI);
diff --git a/with_opencm3/main.h b/with_opencm3/main.h
index 7af7ddd..285142f 100644
--- a/with_opencm3/main.h
+++ b/with_opencm3/main.h
@@ -37,7 +37,10 @@
 #include <libopencm3/stm32/dma.h>
 #include <libopencm3/stm32/spi.h>
 
+#define ADC_CHANNELS_NUMBER    (10)
+
 #include "sync.h" // mutexes
+#include "flash.h"
 #include "user_proto.h"
 #include "AD7794.h"
 #include "onewire.h"
@@ -52,6 +55,7 @@
 extern uint32_t ad7794_values[]; // array with ADC data
 extern uint8_t doubleconv; // single/double ADC conversion
 extern uint32_t ad7794_on; // ==1 after AD7794 initialisation
+extern uint32_t flash_status; // == 0 if flash OK, or == FLASH_SR/FLASH_SR2
 extern uint8_t ADC_monitoring; // ==1 to make continuous monitoring
 void AD7794_init();
 
diff --git a/with_opencm3/user_proto.c b/with_opencm3/user_proto.c
index 2a64c02..3a0db07 100644
--- a/with_opencm3/user_proto.c
+++ b/with_opencm3/user_proto.c
@@ -197,9 +197,19 @@ void parce_incoming_buf(char *buf, int len, sendfun s){
 			case 'o': // open shutter
 				try_to_open_shutter();
 			break;
-			case 'z': // temporary: change delay
-				I = set_shtr_delay;
-				READINT();
+			case 'F': // dump flash data
+				dump_flash_data(s);
+			break;
+			case 'd': // change ADC_divisor
+				;
+			break;
+			case 'm': // change ADC_multiplier
+				;
+			break;
+			case 'z': // temporary: refresh
+				flash_status = check_flash_data();
+				print_int(flash_status, s);
+				s('\n');
 			break;
 			case '\n': // show newline as is
 			break;