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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...
Posted on January 26, 2012 at 18:17It would seem to me given the way the GPIO pins are mapped to EXTI lines, there is no way to use two pins that have the same GPIO pin number. For example, in my case I would like to use pins A8 and B8 as separate ...
Posted on December 14, 2011 at 20:35I currently have code which runs on the STM32F4-Discovery board and DMA's data from the ADC to a buffer. I am using double buffering, so I can operate on one buffer while the other is being filled. In short, my ...
Posted on January 26, 2012 at 01:28The STM32F10x series of MCU's make use of the ARM Private Peripheral Bus address 0xE0042000 to implement a MCU IDCODE with a revision ID and a device ID. I am using the STM32W, and nowhere in the documentation can...
Posted on January 14, 2012 at 06:08When I try to build an example from ST distribution: STM32F4-Discovery_FW_V1.1.0\Project\Peripheral_Examples\IO_ToggleI get an error complaining of missing stm32f4_discovery.h.This header file is distributed in a f...
