Bluepill Diagnostics¶
V1.640¶
Please see this page which covers the latest release: V1.640
OLDER VERSIONS¶
V1.632¶
Project: id-swdcom
Version: 1.632
Created: Mon 17 March 2022
Author 2021 by t.j.porter <techman001@protonmail.com>
Purpose: Determine if your BluePill board contains a genuine STM32F103C8 MCU, attempt to determine clone type if doesn't.
Intended Audience: Blue Pill owners
MCU: STM32F103 and clones
Board: BluePill
Core: Mecrisp-Stellaris RA 2.5.5 for STM32F103 by Matthias Koch
Clock: 72 MHz
Core Options enabled: 1,2,3,4,5,6,7
Required: USB cable, serial terminal emulator, works on any OS. The USB virtual serial (any baudrate) will start in the Bluepill diagnostics menu.
Web Sites Consulted: https://www.blaatschaap.be/32f103-comparison-part-3/ My thanks to Andre for his work with the Jdec data.
For the latest project updates see: https://mecrisp-stellaris-folkdoc.sourceforge.io/bluepill-diagnostics-v1.6.html
License: MIT, please see COPYING
DOWNLOAD: https://sourceforge.net/projects/mecrisp-stellaris-folkdoc/files/bluepill-diagnostics-v1.6.zip
HISTORY¶
My Blue Pill Diagnostics project grew from an interest to create a self contained binary that would boot on a Blue Pill board and access internal MCU information to determine if it contained a genuine or counterfeit Microprocessor chip.
V1.0 was released in November 2019 and it has taken two years to collate and study user clone/fake information because not a lot is known about these counterfeits which are usually (mis)labelled as genuine STMicroelectronics chips.
This interest was kindled by various articles from Blue Pill owners in online forums.
I now consider this project complete, 14 April 2021 at version V1.631 excepting bugfixes.
My thanks to all those that supplied MCU dumps from my earlier versions and to Matthias Koch the Assembly Wizard who created the Free Mecrisp-Stellaris Forth which made not only made this project possible but fun.
Forth is interactive and allows me to examine/change memory in real time and observe the effects instantly as there is no edit, compile, flash, test, edit cycle such as you have with the C programming language. Because Mecrisp-Stellaris Forth is only 20KB in size, it easily fits in the 64KB flash advertised by the Cortex-M3 STM32F103C8 MCU, unlike Circuit Python or eLua, the only other Cortex_M interactive languages, both of which which require 256KB (or more) flash just for their core.
Note
Blue Pill Diagnostics V1.631 is also a self contained Forth Programming development environment with many tools such as peripheral register real time printing and dissasembler, it even has a PC-13 Blinky. Please see the end of this article for more information.
Changelog from V1.5¶
V1.631 is a major change as I’ve realised that attempting to collect and analyse the Device electronic signature is pointless as the same codes are used by genuine and clone mcu’s alike. Thank you to those that emailed me their XML ID dump.
V1.631 uses four tests below to determine if a MCU is a genuine STM32F103C8.
Exploit a silicon bug in genuine STM32F1xx chips where the BGMCU_IDCODE cannot be read from within the MCU without a SWD or JTAG interface connected.
Verify the Flash Size Register = 64KB
Verify that the MCU has a hidden second 64KB flash block as most STM32F103C8 chips do.
Verify that the MCU Jdec manufacturer id is that of STMicroelectronics.
Note
Even if the MCU is not a genuine STM32F103C8 doesn’t mean your Bluepill board is no good, it may still work perfectly although there does not seem to be any detailed English techical documentation for them. If the clone is fraduently marked as a genuine STM32F103C8 you may have some recourse against the seller, but I’m not a lawyer, and this is not legal advice.
How to use Bluepill Diagnostics V1.631¶
Download https://sourceforge.net/projects/mecrisp-stellaris-folkdoc/files/bluepill-diagnostics-v1.6.zip
Flash the bluepill-diagnostics-v1.6xx inside the above zipfile to your Bluepill/Maple Board with OpenOCD or whatever you normally use. Basically you flash this binary exactly as you would flash any STM32Fxx binary.
Plug in a USB cable to the “Blue Pill” board and run a serial terminal program on your PC. This will also power the board.
Connect the serial terminal program to the “Mecrisp STM32F10x Forth Serial Port” USB device now created on your PC. Any speed is ok, I use 460800 Baud myself.
Press the “m” key on your keyboard to bring up the bluepill-diagnostics user menu.
Optional SWDCOM Terminal¶
https://mecrisp-stellaris-folkdoc.sourceforge.io/swdcom.html
There is a bootup option for development use. Normally the Diags boots up into USB virtual comms and a menu, however there is a development option enabled by jumpering PA-0 to 3.3v before bootup.
This switches the terminal to use SWDCOM and disables the Diags menu from starting. The menu is still there and can be started by entering “m” or “menu”.
Enable SWDCOM¶
PA-0 <--> 3.3V
Bluepill SWD connections¶
SWD |
Bluepill Target Board |
|---|---|
SWCLK |
PA-14 |
SWDIO |
PA-13 |
Unknown clones/fakes¶
If your test MCU FAILS the ‘a - Authenticity test’ menu, please email your details to me at techman001@protonmail.com so I can work out what the MCU is and add a test for it to the next release.
New Menus¶
Main Menu¶
h - testing flash¶
Note: Codes are written to each flash location and are read after writing to ensure every bit is tested.
f - how much Flash is declared in the Flash Size Register ?¶
d - Print DBGMCU_IDCODE¶
a - Authenticity test, don’t use with SWD/JTAG. Requires test h once to complete¶
Passed - genuine STM32F103C8T6¶
Failed - CKS clone¶
j - Jdec manufacturer id¶
Genuine STM32F103C8¶
CKS/APM Clone¶
Extra Menu¶
i - unique device Id register¶
n - unique derived serial Number¶
DBGMCU_IDCODE¶
The DBGMCU_IDCODE, CPU-ID and RevID values in this table may help you determine the actual MCU in your Blue Pill. If St-link or OpenOCD don’t work, try using the serial bootloader or even DFU via the Blue Pill USB connector to flash my V 1.6 Diags binary to your MCU.
DBGMCU_IDCODE is at 0xE0042000
Bits 11:0 DEV_ID: Device identifier
Bits 15:12 Reserved
Bits 31:16 REV_ID: Revision identifier
|3|3|2|2|2|2|2|2|2|2|2|2|1|1|1|1|1|1|1|1|1|1|
|1|0|9|8|7|6|5|4|3|2|1|0|9|8|7|6|5|4|3|2|1|0|9|8|7|6|5|4|3|2|1|0|
|-----------REV_ID--------------|rsrvd|---------DEV_ID----------|
Table: Device Info¶
Device |
DEV-ID |
RevID |
Flash (KB) |
2nd 64KB Hidden ? |
Ram (KB) |
Manufacturer |
SWD? |
Notes |
|---|---|---|---|---|---|---|---|---|
STM32F103C8T6 |
0x410 |
0x2003 |
2x 64 |
YES |
20 |
STMicroelectronics |
Y |
|
STM32F103RBT6 |
0x410 |
0x2003 |
128 |
NO |
20 |
STMicroelectronics |
Y |
|
CKS32F103C8T6 |
0x410 |
0x2003 |
64 |
NO |
20 |
China Key System |
N |
A |
CKS32F103CBT6 |
0x410 |
0x2003 |
128 |
NO |
20 |
China Key System |
N |
|
APM32F103CBT6 |
0x410 |
0x2003 |
? |
? |
? |
Apex Micro |
N |
|
GD32F130C8 |
0x410 |
0x1303 |
64 |
n/a |
8 |
Gigadevice |
? |
|
GD32F150C8 |
0x410 |
0x1303 |
64 |
n/a |
8 |
Gigadevice |
? |
|
STM32F103VET6 |
0x414 |
0x1001 |
512 |
n/a 512kb |
64 |
STMicroelectronics |
Y |
|
GD32F103VE |
0x414 |
0x1309 |
512 |
n/a 512kb |
64 |
Gigadevice |
? |
|
GD32F103VK |
0x430 |
0x1309 |
3072 |
n/a 3MB |
96 |
Gigadevice |
? |
|
GD32F103C8T6 |
0x436 ? |
0x1038 ? |
? |
? |
? |
Gigadevice |
? |
|
CH32F103C8T6 |
? |
? |
64 |
n/a |
20 |
WCH |
? |
Note
SWD?: Does this MCU require an active SWD connection before the DBGMCU_IDCODE can be read INTERNALLY (Using my Diagnostics Binary) ?
Notes Table¶
Notes |
Comment |
|---|---|
A |
H test fails with errors: 001FCE6 $FF?: $37, 0001FCEA $FF?: $C1, Wrong address or data for writing flash ! |
Table: JDEC Codes¶
Note only STMicro and CS32 are verified, the rest pinched from Andre’s site. Please email your labelled MCU confirmations/results for any MCU’s to techman001@protonmail.com.au so I can keep this table updated if clones change id.
Manufacturer |
Chip Example |
identity (hex) |
continuation (hex) |
|---|---|---|---|
STMicro |
STM32F103C8 |
20 |
00 |
GigaDevice Semiconductor |
GD32F103C8 |
C8 |
07 |
GigaDevice Semiconductor (Beijing) |
GD32F103C8 |
51 |
07 |
HK32 |
HK32F103CBT6 |
55 |
05 |
CS32 |
CS32F103C8T6 |
3B |
04 |
APM32 |
APM32F103C8T6 |
3B |
04 |
Forth User Notes¶
This project is built on Mecrisp-Stellaris Forth and is a complete Forth development environment. The command line may be accessed by quitting the Diagnostics Menu or by attaching a jumper between PA-0 and 3.3V, which at power up will switch the User Terminal into SWDCOM FORTH mode without starting the Bluepill Diagnostics Menu.
Swdcom: https://mecrisp-stellaris-folkdoc.sourceforge.io/swdcom.html
Numerous utilities are available while still keeping the binary size under 64KB so it can be flashed using unmodified st-link or openocd etc.
More information about Mecrisp-Stellaris Forth may be found here: https://mecrisp-stellaris-folkdoc.sourceforge.io/index.html
128KB Flash¶
If your MCU passed all the tests can the full 128KB flash be used ?
YES! but you need to use OpenOCD with a special config file ‘stm32f103c8-128kb.cfg’ which is included in the openocd subdirectory this release. This tells OpenOCD that the chip has 128KB flash.
Kernel Options¶
This kernel has the following options enabled: 1,2,3,4,5,7,8
Kernel Options |
Description |
|---|---|
1 |
context sensitive color prompt |
2 |
all errors in red and beep terminal bell. Enter “;” at the terminal to test them. |
3 |
“redefine” warning in orange |
4 |
Halts source file uploads on (or about) the first error, all errors in red and sound bell. Swdcom uploads are too fast to see! |
5 |
Simplified stack print. “.s Stack: [0 ] 42 ok.” |
6 |
Swdcom instead of usart user terminal |
7 |
catchflashpointers.s/bl uart_init transposition. Essential for swdcom to work properly. |
8 |
add ‘carriage return’ to ‘newline’ for Windows to prevent ‘stair stepping’ |
Peripheral Pretty Print Words¶
RCC. GPIOA. GPIOB. GPIOC. EXTI. TIM2. I2C1. SPI1. ADC1. DBG. NVIC.
Sample¶
EXTI.
EXTI_IMR. RW $00000000
3|3|2|2|2|2|2|2|2|2|2|2|1|1|1|1|1|1|1|1|1|1|
1|0|9|8|7|6|5|4|3|2|1|0|9|8|7|6|5|4|3|2|1|0|9|8|7|6|5|4|3|2|1|0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
EXTI_EMR. RW $00000000
3|3|2|2|2|2|2|2|2|2|2|2|1|1|1|1|1|1|1|1|1|1|
1|0|9|8|7|6|5|4|3|2|1|0|9|8|7|6|5|4|3|2|1|0|9|8|7|6|5|4|3|2|1|0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
EXTI_RTSR. RW $00000000
3|3|2|2|2|2|2|2|2|2|2|2|1|1|1|1|1|1|1|1|1|1|
1|0|9|8|7|6|5|4|3|2|1|0|9|8|7|6|5|4|3|2|1|0|9|8|7|6|5|4|3|2|1|0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
EXTI_FTSR. RW $00000000
3|3|2|2|2|2|2|2|2|2|2|2|1|1|1|1|1|1|1|1|1|1|
1|0|9|8|7|6|5|4|3|2|1|0|9|8|7|6|5|4|3|2|1|0|9|8|7|6|5|4|3|2|1|0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
EXTI_SWIER. RW $00000000
3|3|2|2|2|2|2|2|2|2|2|2|1|1|1|1|1|1|1|1|1|1|
1|0|9|8|7|6|5|4|3|2|1|0|9|8|7|6|5|4|3|2|1|0|9|8|7|6|5|4|3|2|1|0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
EXTI_PR. RW $00000000
3|3|2|2|2|2|2|2|2|2|2|2|1|1|1|1|1|1|1|1|1|1|
1|0|9|8|7|6|5|4|3|2|1|0|9|8|7|6|5|4|3|2|1|0|9|8|7|6|5|4|3|2|1|0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Dictionary¶
These are inbuilt user programs.
i.e. ‘2+’ is a program that adds 2. Forth uses RPN.
2 2+ . 4 ok.
Dissasembler¶
see 2+
see 2+
0000205A: 3602 adds r6 #2
0000205C: 4770 bx lr
Bytes: 4 ok.
Word Listing¶
--- Mecrisp-Stellaris RA 2.5.5 ---
2dup 2drop 2swap 2nip
2over 2tuck 2rot 2-rot
2>r 2r> 2r@ 2rdrop
d2/ d2* dshr dshl
dabs dnegate d- d+
s>d um* m* ud*
udm* */ */mod u*/
u*/mod um/mod m/mod ud/mod
d/mod d/ f* f/
2! 2@ du< du>
d< d> d0< d0=
d<> d= sp@ sp!
rp@ rp! dup drop
?dup swap nip over
tuck rot -rot pick
depth rdepth >r r>
r@ rdrop rpick roll
-roll and bic or
xor * clz ror
rol arshift rshift lshift
0= 0<> 0< true
false >= <= <
> u>= u<= u<
u> <> = min
max umax umin move
fill @ ! +!
h@ h! h+! c@
c! c+! bis! bic!
xor! bit@ hbis! hbic!
hxor! hbit@ cbis! cbic!
cxor! cbit@ hflash! flashpageerase
eraseflash eraseflashfrom + -
1- 1+ 2- 2+
cell+ negate not shr
shl 2* cells 2/
abs u/mod /mod mod
/ even base binary
decimal hex swd swd-init
swd-key? swd-emit? swd-key swd-emit
hook-emit hook-key hook-emit? hook-key?
hook-pause emit key emit?
key? pause cexpect accept
tib >in current-source setsource
source query compare cr
bl space spaces [char]
char ( \ ."
c" s" count ctype
type hex. h.s u.s
.s words unused 12bitencoding
registerliteral, movwmovt, call, literal,
create does> <builds [']
' postpone inline, ret,
exit recurse state ]
[ : ; execute
immediate inline compileonly 0-foldable
1-foldable 2-foldable 3-foldable 4-foldable
5-foldable 6-foldable 7-foldable constant
2constant smudge setflags aligned
align h, , ><,
string, allot forgetram compiletoram?
compiletoram compiletoflash (create) variable
2variable nvariable buffer: dictionarystart
dictionarynext skipstring find hook-find
(find) cjump, jump, here
flashvar-here then else if
ahead repeat while until
again begin k j
i leave unloop +loop
loop do ?do case
?of of endof endcase
token parse digit number
.digit hold hold< sign
#> f#S f# #S
# <# f. f.n
ud. d. u. .
evaluate interpret hook-quit quit
eint? eint dint ipsr
nop unhandled reset irq-systick
irq-fault irq-collection irq-rtc irq-exti0
irq-exti1 irq-exti2 irq-exti3 irq-exti4
irq-adc irq-exti5 irq-tim1brk irq-tim1up
irq-tim1trg irq-tim1cc irq-tim2 irq-tim3
irq-tim4 irq-i2c1ev irq-i2c1er irq-i2c2ev
irq-i2c2er irq-spi1 irq-spi2 irq-usart1
irq-usart2 irq-usart3 irq-exti10 irq-rtcalarm
irq-usbwkup irq-tim5 irq-spi3 irq-uart4
irq-uart5 irq-tim6 irq-tim7 irq-usbfs
--- Flash Dictionary ---
72mhz u.1 u.2 u.3
u.4 u.8 h.1 h.2
h.3 h.4 h.8 hex.1
hex.2 hex.3 hex.4 u.ns
const. addr. .decimal bit
b8loop. b16loop. b16loop-a. b32loop.
b32sloop. bin. bin1. bin2.
bin4. bin4l. bin4h. bin16.
WRITEONLY RCC RCC_CR RCC_CFGR
RCC_CIR RCC_APB2RSTR RCC_APB1RSTR RCC_AHBENR
RCC_APB2ENR RCC_APB1ENR RCC_BDCR RCC_CSR
RCC_CR. RCC_CFGR. RCC_CIR. RCC_APB2RSTR.
RCC_APB1RSTR. RCC_AHBENR. RCC_APB2ENR. RCC_APB1ENR.
RCC_BDCR. RCC_CSR. RCC. GPIOA
GPIOA_CRL GPIOA_CRH GPIOA_IDR GPIOA_ODR
GPIOA_BSRR GPIOA_BRR GPIOA_LCKR GPIOA_CRL.
GPIOA_CRH. GPIOA_IDR. GPIOA_ODR. GPIOA_BSRR.
GPIOA_BRR. GPIOA_LCKR. GPIOA. GPIOB
GPIOB_CRL GPIOB_CRH GPIOB_IDR GPIOB_ODR
GPIOB_BSRR GPIOB_BRR GPIOB_LCKR GPIOB_CRL.
GPIOB_CRH. GPIOB_IDR. GPIOB_ODR. GPIOB_BSRR.
GPIOB_BRR. GPIOB_LCKR. GPIOB. GPIOC
GPIOC_CRL GPIOC_CRH GPIOC_IDR GPIOC_ODR
GPIOC_BSRR GPIOC_BRR GPIOC_LCKR GPIOC_CRL.
GPIOC_CRH. GPIOC_IDR. GPIOC_ODR. GPIOC_BSRR.
GPIOC_BRR. GPIOC_LCKR. GPIOC. EXTI
EXTI_IMR EXTI_EMR EXTI_RTSR EXTI_FTSR
EXTI_SWIER EXTI_PR EXTI_IMR. EXTI_EMR.
EXTI_RTSR. EXTI_FTSR. EXTI_SWIER. EXTI_PR.
EXTI. TIM2 TIM2_CR1 TIM2_CR2
TIM2_SMCR TIM2_DIER TIM2_SR TIM2_EGR
TIM2_CCMR1_Output TIM2_CCMR1_Input TIM2_CCMR2_Output TIM2_CCMR2_Input
TIM2_CCER TIM2_CNT TIM2_PSC TIM2_ARR
TIM2_CCR1 TIM2_CCR2 TIM2_CCR3 TIM2_CCR4
TIM2_DCR TIM2_DMAR TIM2_CR1. TIM2_CR2.
TIM2_SMCR. TIM2_DIER. TIM2_SR. TIM2_EGR.
TIM2_CCMR1_Output. TIM2_CCMR1_Input. TIM2_CCMR2_Output. TIM2_CCMR2_Input.
TIM2_CCER. TIM2_CNT. TIM2_PSC. TIM2_ARR.
TIM2_CCR1. TIM2_CCR2. TIM2_CCR3. TIM2_CCR4.
TIM2_DCR. TIM2_DMAR. TIM2. I2C1
I2C1_CR1 I2C1_CR2 I2C1_OAR1 I2C1_OAR2
I2C1_DR I2C1_SR1 I2C1_SR2 I2C1_CCR
I2C1_TRISE I2C1_CR1. I2C1_CR2. I2C1_OAR1.
I2C1_OAR2. I2C1_DR. I2C1_SR1. I2C1_SR2.
I2C1_CCR. I2C1_TRISE. I2C1. SPI1
SPI1_CR1 SPI1_CR2 SPI1_SR SPI1_DR
SPI1_CRCPR SPI1_RXCRCR SPI1_TXCRCR SPI1_I2SCFGR
SPI1_I2SPR SPI1_CR1. SPI1_CR2. SPI1_SR.
SPI1_DR. SPI1_CRCPR. SPI1_RXCRCR. SPI1_TXCRCR.
SPI1_I2SCFGR. SPI1_I2SPR. SPI1. ADC1
ADC1_SR ADC1_CR1 ADC1_CR2 ADC1_SMPR1
ADC1_SMPR2 ADC1_JOFR1 ADC1_JOFR2 ADC1_JOFR3
ADC1_JOFR4 ADC1_HTR ADC1_LTR ADC1_SQR1
ADC1_SQR2 ADC1_SQR3 ADC1_JSQR ADC1_JDR1
ADC1_JDR2 ADC1_JDR3 ADC1_JDR4 ADC1_DR
ADC1_SR. ADC1_CR1. ADC1_CR2. ADC1_SMPR1.
ADC1_SMPR2. ADC1_JOFR1. ADC1_JOFR2. ADC1_JOFR3.
ADC1_JOFR4. ADC1_HTR. ADC1_LTR. ADC1_SQR1.
ADC1_SQR2. ADC1_SQR3. ADC1_JSQR. ADC1_JDR1.
ADC1_JDR2. ADC1_JDR3. ADC1_JDR4. ADC1_DR.
ADC1. DBG DBG_IDCODE DBG_CR
DBG_IDCODE. DBG_CR. DBG. NVIC
NVIC_ICTR NVIC_STIR NVIC_ISER0 NVIC_ISER1
NVIC_ICER0 NVIC_ICER1 NVIC_ISPR0 NVIC_ISPR1
NVIC_ICPR0 NVIC_ICPR1 NVIC_IABR0 NVIC_IABR1
NVIC_IPR0 NVIC_IPR1 NVIC_IPR2 NVIC_IPR3
NVIC_IPR4 NVIC_IPR5 NVIC_IPR6 NVIC_IPR7
NVIC_IPR8 NVIC_IPR9 NVIC_IPR10 NVIC_IPR11
NVIC_IPR12 NVIC_IPR13 NVIC_IPR14 NVIC_ICTR.
NVIC_STIR. NVIC_ISER0. NVIC_ISER1. NVIC_ICER0.
NVIC_ICER1. NVIC_ISPR0. NVIC_ISPR1. NVIC_ICPR0.
NVIC_ICPR1. NVIC_IABR0. NVIC_IABR1. NVIC_IPR0.
NVIC_IPR1. NVIC_IPR2. NVIC_IPR3. NVIC_IPR4.
NVIC_IPR5. NVIC_IPR6. NVIC_IPR7. NVIC_IPR8.
NVIC_IPR9. NVIC_IPR10. NVIC_IPR11. NVIC_IPR12.
NVIC_IPR13. NVIC_IPR14. NVIC. input.analog
output.pp input.floating output.od input.pullx
output.af.pp output.af.od gpio? SCB_CPUID
SCB_ICSR SCB_VTOR SCB_AIRCR SCB_SCR
SCB_CCR SCB_SHPR1 SCB_SHPR2 SCB_SHPR3
SCB_SHCSR SCB_CFSR SCB_HFSR SCB_MMFAR
SCB_BFAR STK_CSR STK_RVR STK_CVR
STK_CALIB STK_CTRL STK_LOAD STK_VAL
dump16 dump words4 chipid
hwid c,collection c, calign
flash-kb flash-pagesize init-ring c++@
ring-step ring# ring? >ring
ring> usb:dev usb:conf usb:langid
usb:vendor usb:product usb:line usb:init
USB USB_EP0R USB_CNTR USB_ISTR
USB-FNR USB_DADDR USB_BTABLE USBMEM
usb-pma usb-pma@ usb-pma! ep-addr
ep-reg rxstat! txstat! ep-reset-rx#
rxclear txclear usb-pend usb-serial
set-serial send-data send-next send-desc
usb-reset zero usb-in-ring usb-out-ring
ep-setup tx.pend usb.ticks usb-pma-c!
usb-fill ep-out ep-in usb-ctr
usb-flush usb-poll usb-key? usb-key
usb-emit? usb-emit usb-io init.usb
deinit.usb +usb -usb flashfree
ramfree flashfree. ramfree. memstats
word.start word.end disasm-$ disasm-fetch
disasm-string name. register. opcode?
reg. reg16. reg16split. registerlist.
imm3. imm5. imm8. imm3<<1.
imm5<<1. imm8<<1. imm3<<2. imm5<<2.
imm7<<2. imm8<<2. condition. rotateleft
rotateright imm12. destination-r0 disasm-thumb-2
disasm memstamp disasm-step seec
see free ticktime tickint
systick-handler init.systick ticktime. zero-ticktime
ms.delay cornerstone --utils-- calltrace-handler
init.calltrace RCC_APB2ENR_IOPAEN RCC_APB2ENR_IOPBEN RCC_APB2ENR_IOPCEN
JUMPER-ON? GPIOA_CRL_MODE0<< GPIOC_CRH_MODE13<< GPIOC_BSRR_BS13
GPIOC_BSRR_BR13 GPIOB_CRH_MODE9 GPIOB_CRH_CNF9 GPIOB_BSRR_BS9
GPIOB_BSRR_BR9 PB9-LOW PB9-HIGH GPIOA_CRH_MODE12
GPIOA_CRH_CNF12 GPIOA_BSRR_BS12 GPIOA_BSRR_BR12 PA12-HIGH
PA12-LOW blink pa12-init pa12-disable
pa12-pulse pb9-init pb9-disable pb9-pulse
usddp-init usbdp-pulse usbdp-disable 2nd64kb-verified-flag
test-flag pass-flag flash=65536-declared-flag
qty-flash-declared? 2nd64kb-verified-flag-test
FF? AA? 55? fillAA
fill55 erase 2nd64kb? hidden64kB?
cause-exception wait flash-declared? print-flash-declared
DBGMCU_IDCODE-UNREADABLE-FLAG
3addr duid serial is-ascii?
ascii. id scb_cpuid-bits31-0 scb_cpuid-bits31:24
scb_cpuid-bits23:20 scb_cpuid-bits19:16 scb_cpuid-bits15:4 scb_cpuid-bits3:0
scb-cpuid uuid print-dbgmcu_idcode dbgmcu_idcode?
test-status? F103C8T6-Auth? 0dump 1dump
fflag-fail! fflag-pass! ex3 flash-$55@$1FFF0
read-@$1FFF0 credits license faq
usb-faq fallthru extra-menu-print menu-a
menu-print extra-menu menu m
version-major version-minor version? option-jumper?
init
Forth User Notes¶
A PC-13 blinky, ‘blink’ has been included.
: GPIOC_CRH_MODE13<< ( %bbbb -- x ) 20 lshift ; \ GPIOC-13 mode
: GPIOC_BSRR_BS13 ( -- ) 13 bit GPIOC_BSRR ! ; \ Set bit 13
: GPIOC_BSRR_BR13 ( -- ) 29 bit GPIOC_BSRR ! ; \ Reset bit 13
: blink ( -- pc13 )
$F GPIOC_CRH_MODE13<< GPIOC_CRH bic! \ clear all bits
output.od GPIOC_CRH_MODE13<< GPIOC_CRH bis! \ set PC13 to open drain
begin
GPIOC_BSRR_BR13 \ PC13 led on
1000 ms.delay \ accurate 1 millisecond blocking delay
GPIOC_BSRR_BS13 \ PC13 led off
1000 ms.delay
key? until \ keep blinking until a keyboard key is pressed
;
‘free’ shows the flash and ram status. Flash status assumes a 128kb flash chip (including the STM32F103C8 hidden 64KB)
To remove all of the BluePill Diags V1.6 code to free up flash space enter the following:
--utils--
This will not affect the USB terminal or developer utils etc.You can replace it by reflashing bluepill-diagnostics-v1.6.bin
