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Posted on January 27, 2012 at 13:11I can't find any info about the capability of the DAC output buffer of being a current sink. Is it possible? Which is the max sink current? EDIT: I mean the DAC integrated on the uC chip and connected to GPIO pins,...
Posted on January 29, 2012 at 21:48Hi, I have a clock signal in the range of 10MHz. In every clock cycle (100nsec long) I would like to create a strobe signal, typically 20nsec long, and exact point of the strobe should be variable. My Clock is pro...
Posted on January 26, 2012 at 10:28I need a delay in a timer 4 interrupt. To realize this I wrote the the follow lines:if(TIM_GetITStatus(TIM4, TIM_IT_CC1) == SET) { TIM_ClearITPendingBit(TIM4, TIM_IT_CC1); TIM_ClearFlag(TIM4, TIM_FLAG_CC3); while(T...
Posted on January 03, 2012 at 09:29Hi everybody, i work with the evalboard STM3220G with the USB example from the USB host-device lib. I try to write additional data in the create/existing file, but I'm not successful. Can anyone say me, what i must...
Posted on January 27, 2012 at 10:28Hi, in the reference manual RM0090 for STMF4, in chapter 7.1 it is recommended to activate the ''IO compensation cell'' (Register SYSCFG_CMPCR), if outputs are used with speed settings of 50 or 100 MHz (GPIOx_OSPEE...
Posted on January 27, 2012 at 11:54In Ref. Manual 6.4.11 Table 18, for the registers GPIOx_OTYPER a reset value of 0x4444 is specified, but I think this is an error - should be 0x0000? (as specified in 6.4.2 at the register description?).
Posted on December 15, 2011 at 05:18After transmitting a block of data, SD Card sends the CRC for the data.After sending CRC, SD Card sometimes puts itself in the ''Busy'' mode.According to the reference manual, STM32's SDIO peripheral's data path s...
Posted on January 27, 2012 at 10:02I use Stm32f103rb microprocessor on stm32p103 board. I want to control a thermal printer. Is there anyone who give me some example code for this situation ? Thank alot
Posted on January 27, 2012 at 12:23Hi, I have some questions about flash programming 1. how many writes to flash can i made beetwen FLASH->CR |= CR_PG_Set; and FLASH->CR &= CR_PG_Reset; is it possible to write here more data than 2 words ? (only 2...
Posted on January 26, 2012 at 19:26Hello ,I'm using STM32 F100 RB microcontroller and 2x16 character LCD.I want to display strings on it.(HD 44780 driver) using GPIO protocole ( GPIOB )Who can help me about it ?Is there any demo project in this si...
