STM8 MCUs

Posted on May 07, 2013 at 14:58I am using the STM8L151C6T6. I would like to route PD6 to TIM1 Input Capture IC2. The following code executes but does not change the RI_ICR1 register value and the routing does not take place either.     GPIO_Init(PORT_D, P_6, GPIO_Mode_In_FL_No_IT);       SYSCFG_RIDeInit();      RI->ICR1 = (uint8_t)0x0A; Can anybody tell me what I need to do to route pins to TIM1 input capture as per Table 27 of RM0031? Any help will be greatly appreciated. Wynand

Posted on December 21, 2012 at 04:11I am using COSMIC compiler in STVD.  I try to define segment option -ck for all program and constant.  I can use Project Settings->Linker->Input->Segment/Section to add option for all .const and .text.  But the interrupt vector is not included for this option -ck.  I check the .lkf file generated by STVD, interrupt vector is generated like# Interrupt vectors file - section reserved for STVD#<BEGIN VECTOR_FILE>+seg .const -b 0x8000 -kRelease\stm8_interrupt_vector.o#<END VECTOR_FILE>Is there a way to add more option to the generate script for interrupt vector?  I don't see anywhere to add options.ThanksMichael Tien

Posted on May 27, 2013 at 11:48Hi All, I want to execute some command in .lkf file for COSMIC Compiler condionally. is it possible?? Pseudo code is as below: /*--------------------------*/ #ifdef TRUE obj\libisl.sm8 #else obj\libis0.sm8 #endif /*--------------------------*/ Thanks Balmukund Prasad

Posted on April 17, 2013 at 22:35Hello, I'm looking into storing some calibration data for my application into FLASH memory since my EEPROM space is very valuable and I cannot spare any of it. The cal data would only be written once (upon the first powerup of the device) and from then on would be read everytime on powerup. What is a good way of doing this sort of thing? Can I ''reserve'' some FLASH so that the compiler doesn't use that particular location(s) for the main program? Thanks

Posted on August 12, 2011 at 01:06Hi, I would like to use the uart device of the stm8l chip on the stm8l discovery board. I notice that uart and cristal are shared on the same pins (PA2 and PA3) Do you think it is possible to use the uart when the stm8l is working with the 32khz oscillator or on the internal 16 Mhz internal RC ? I don't care of the speed RS232 speed, even 300 bauds is fine for me, Thanks, Franck

Posted on May 03, 2013 at 18:38Hi. I have a program in STM8L152R8, my firmware has a size of 0xEFE1. I want to prevent that for any reason my microcontroller work bad. So, I want to fill  the rest of the hex file (0x901E) with 0x83 (interrup trap). in my programm I have the next code (main.c): void vFill_Trap(void) {   &sharpasm      switch .text      dcb.b 36894, $83    ; allocate trap bytes                                        ; all initialized to $83      &sharpendasm } I need the main.c file be the last to compile. How I can do this? I use the STVD and Cosmic.

Posted on June 27, 2012 at 18:20Hi,Does anybody knows how to jump properly to Bootloader entry point at adress 0x602D?I 've tried :#define BOOTLOADER_ADDR 0x602Dultypedef  void (*TFunction)(void);void JumpToBootLoader(void){const TFunction MainUserApplication = (TFunction)BOOTLOADER_ADDR ;TFunction GoAddress;GoAddress();}but it does not seems to go the entry point.Many thanks,jfelix

Posted on March 05, 2013 at 08:10Dear all, i want to set '' __iar_program_start ''  in the absolute address(ex:0x9100). so, i am setting override default program entry and entry symbol is '' iar_reset ''. and program is: #pragma location = ''.CallBack_Reset_func.text'' void iar_reset(void) {     main(); } but it's not work and debug log show : '' Failed to read memory at 0x20: SWIM error [30004]: Comm timeout '' how can i to do? thx

Posted on April 30, 2013 at 09:19hello, please can help me someone one with an assembly language  who convert a 5digit BCD to BIN many thanks

Posted on April 16, 2013 at 14:18Hi, I found a problem while writing to the EEPROM. The uC type is STM8af6289. This part of the program is the folowing: initializing part: void FLASH_Config(void) {     FLASH_SetProgrammingTime(FLASH_PROGRAMTIME_STANDARD);     FLASH_Unlock(FLASH_MEMTYPE_DATA);     while (FLASH_GetFlagStatus(FLASH_FLAG_DUL) == RESET); } main part program: int main() {     FLASH_Config();     while(1)     {         if(FLASH_GetFlagStatus(FLASH_FLAG_EOP)==RESET)             {             *(PointerAttr uint8_t*) (uint16_t)0x4001 = 0x55; &nb

Posted on February 05, 2013 at 04:46I am a newbie at cosmic and I met something strange when using STVD with cosmic compiler to run my project. I hope that somebody can explain it for me. This is my project: It is my main: &sharpinclude ''peripheral.h'' &sharpinclude ''si4432.h'' static WORKING_AREA(waProtocolThread, 384); void main(void) {     SetupSENSOR(); &sharpif 1     /*Test NTC_Comparator 2*/     while(1)     {         SI_ReadRegister(0x26);     } &sharpelse      chThdCreateStatic(waProtocolThread, sizeof(waProtocolThread), NORMALPRIO, CP_SENSORThread, NULL); &sharpendif   while (TRUE) {}; } And this is my subfunction SI_Read

Posted on February 19, 2013 at 21:05stm8s discovery does not work out of the box. No flashing led. nothing I am using windows7

Posted on April 17, 2013 at 22:32Hello, I'm looking into storing some calibration data for my application into FLASH memory since my EEPROM space is very valuable and I cannot spare any of it. The cal data would only be written once (upon the first powerup of the device) and from then on would be read everytime on powerup. What is a good way of doing this sort of thing? Can I ''reserve'' some FLASH so that the compiler doesn't use that particular location(s) for the main program? Thanks

Posted on April 24, 2013 at 16:11 Hi together, I'm writing a application for a STM8S207C8 (64k flash).Currently my code needs 50kB of the flash, what means that the ''magic'' address 0xFFFF is crossed. Therefore I use the compiler option ''+modsl'' (recommended by the compiler manual). This configuration works properly. Now I would like to use the power-on self-test functionality from the ST self-test library. Therefore I created the needed sections in linker file and mapped the call of ''STL_StartUp'' at my reset interrupt vector (as recommended by AN3181, corresponding to the ST self-test library). The bad fact is that with this new configuration I get the following linker error: #error clnk Debug_Standard\sey-redesign.lkf:92 Debug_Standard\stm8s_stl_startup.o: section boundary crossing (.text:00c9) f__stext I looked for this error code in the STM8 forum but I couldn't find a answer that would help me.

Posted on April 10, 2013 at 16:13 STLED316S I would like some clear instructionsthat inform me how to communicate with the STLED316S.I have the STEVAL-ICB003V board,viewing the communications on a logic analyzer, and attempting to duplicate the setup does not work.I am connected to the STLED316S with a uC, can get only DIG1_LED to illuminate.Is there is someone at ST that knows how to point to a memory location and write control values, please do share?An example that tells how to set the STB line low while pointing to a memory location + page file would be useful.Example, write to STLED316S to set number of digits, then set to send series of values to each digit for display.In addition, I am using 3.3V for the serial communications, I am powering the STLED316S with 5V, and pulling DIN/DOUT up with 3.3V. Is this the proper method?

Posted on April 10, 2013 at 14:13Hi all, I have a specific needs for a project. In this project I use a STM8AL3L66 but my question is a general question about the interrupt in the STM8 family. Is that an interrupt can be interrupted by the same interrupt (itself) ? I know (according to the datasheet) that an interrupt can interrupt an other interrupt (in nested mode) : But I wish to know if this kind of behavior is possible :

Posted on April 05, 2013 at 09:54Hello, is there any information about the AC characteristics like SINAD or ENOB of the 12-Bit ADC? Gregor #adc-characteristics

Posted on March 26, 2013 at 05:48I cant seem to decipher the TIM1 registers to get a basic timer function similar to TIM2 or TIM4.  Count UP and interrupt only if you reach the auto-reload period. In my application I reset the counter to 0 before the period is reached so a timer interrupt is a fault of sorts. TIM1 generates an interrupt when I set the counter to 0. Is there a way to inhibit that portion of the update interrupt?  Can a compare be used without and output? currently I use the standard library provided and the intent below was to have the timers operate equally:   TIM1_TimeBaseInit(0x0020, TIM1_COUNTERMODE_UP, 0x00B4, 1 );   /* Enable TIM1 IT UPDATE */   TIM1_ITConfig( TIM1_IT_UPDATE, ENABLE);   /* Enable TIM1 */ //  TIM1_Cmd(ENABLE);   //  TIM2_DeInit();   /* Time base configuration */   TIM2_TimeBa

Posted on March 23, 2013 at 18:04 I'm trying to compare an input string, and using the COSMIC C environment. I've had no luck with their supplied strcmp function, so I gave up and wrote my own... But still wondering what is wrong... Here is the test case, when I run it, the result of strcmp is always zero: Anyone has an idea? u8 result; result = strcmp(''A\0'', ''A\0''); if (result != 0){ SerialPutString(''A=A Not zero\n''); } else { SerialPutString(''A=A Zero\n''); } result = strcmp(''A\0'', ''B\0''); if (result != 0){ SerialPutString(''A=B Not zero\n''); } else { SerialPutString(''A=B Zero\n''); } while(1){ }

Posted on June 18, 2012 at 01:09I want to send 6 Bytes by I2C to slave, but when I send address slave and wait for ACK the is no reaction. I used 10k pull-up resistor.CLOCK_SPEED = 100000=100kHzBUFFERSIZE = 6/********************  main.c **********************/#include ''stm8l15x.h''#include ''main.h''/* -------------------------------- I2C ------------------------------------- */uint8_t i = 0; __IO uint8_t Tx_Idx = 0;__IO uint8_t NumOfBytes = BUFFERSIZE;extern __IO uint8_t TxBuffer[BUFFERSIZE];static void I2C_Config(void);void main(void){  I2C_Config();     /* Infinite loop */  while (1)  {}}static void I2C_Conf

Posted on March 24, 2013 at 11:24hi there here's my problem, i tried to program a spi device, and (after a long debug i finally knew that it) got stuck at waiting for TXE flag of SPI_SR, trying to write to the SPI bus. and i checked the SPI_CR1 register and SPI_SR register, they are: SPI_CR1 = 0x10 SPI_SR  = 0x20 so the configuration of SPI is not correct... but my initialization code is very simple: void spi_init(void) {  /* full-duplex is (BDM = 0 and RXONLY = 0) */  SPI_CR1 |= SETV(SPI_DIV8, BR0) | SETB(MSTR)  SPI_CR1 |= SETB(SPE);  return;} with the marcos and pseudo-functions: #define SETB(bit)      (1<<(bit))#define SETV(val,bit)  ((val)<<(bit))/* bits of SPI co

Posted on March 24, 2013 at 07:16I've working with the STM8S103K3T6C (LQFP package) and getting SPI Master working, without the Standard Peripheral libraries.  I am able to send data correctly, however I havn't been able to get the hardware SPI peripheral to manage the CS/SS line for me.  No combination of the SPI_CR2_SSM and SPI_CR2_SSI registers seems to work.  I've tried both the default NSS pin (PE5) and the optional NSS pin (PA3) with the correct AFR bit set.  What do I need to do to enable hardware management of CS/SS? #spi-nss

Posted on March 23, 2013 at 23:11I'm playing around with external interupts from a button and the code base is essentially what was used in the discovery board. It seems as though the documentation suggests that external iunterrupts from the ports can be EDGE triggered either rising or falling and in one case the documentation suggests falling and low level. I cant seem to get any edge triggered interrupts at all, they are all LEVEL. For instance using the discovery code, just hold in the button and you will be interrupted constantly. (No matter which setting of sensitvity)  There doesn't seem to be a pending bit to clear so I assume the IRET does that. I am currently using IAR. Am I missing something? #stm8s-interrupts

Posted on March 21, 2013 at 20:53I cannot find a link to download the touch sensing library for the STM8L15x microcontroller. Where is the software in the new site ? #touch-stm8l15x

Posted on September 09, 2009 at 19:29Timer1 External Clk source mode2