Using SPI in Master mode with DMA (Interrupt method )
Posted on January 29, 2014 at 07:37Hi Clive, Can you refered me any example where I can get code for SPI in master mode with DMA. I got example with polling method ot with interrupt
Forum Posts
transceiver max2830 with ST microcontroller
Posted on February 05, 2014 at 16:18 Hello everyone, I have looked for the answer on the internet but I have found no answer so far. Would you know if it is possible to command a transceiver MAX2830 with the STM32f429 ? http://datasheets.ma...
STM32F205 ADC in non Scan Mode
Posted on February 06, 2014 at 08:36G'day, I am working with the STM32F205 and despite having carefully read the ADC chapter in the Family Reference Manual (RM0033) I seem to be missing something... Page 231 of RM0033 Rev 5 says that the SCAN bit ...
Help a Hardware guy with NVIC
Posted on February 06, 2014 at 19:13I am trying to understand the NVIC on a SMT32F407. I have found that we are missing USB interrupts randomly. Since I cant solder a pullup to fix the problem I am stuck. I can understand the documentation enough to...
Tristating GPIO as an output
Posted on February 05, 2014 at 19:19Using an STM32F407, can you have a pin set up as an output and tristated?The reason that I ask is b/c my circuit is acting like it is doing just that. With my pin configuration as follows:GPIO_InitStructure.GPIO_M...
STM32F4 External Interrupts not Working
Posted on February 06, 2014 at 07:46I wrote a code to generate rising edge interrupts for a 4MHz clock input to the board. The 4MHz input is generated by MCO while the core is pushed to 168MHz. I found that certain interrupts are not being tacked at...
STM32F427 External 32 bit Dual Port Ram
Posted on February 05, 2014 at 17:20I have looked at using the STM32F427 to drive a 32 bit Universal Bus, similar to VME. I need CAN, SPI, USB etc, therefore the STM32 looks a good choice. I am finding difficulty in getting information on the FMC bu...
mp45dt02 mic passthru to DAC
Posted on December 15, 2012 at 02:25On the discovery board, the digital MEMs mic data is accessed by providing a clock from i2s_2. In the Audio_playback_record example, i2s is set up to acquire data in 16b blocks, and an interrupt (AUDIO_REC_SPI_IRQ...
USB cdc host can not see device after second connection
Posted on February 06, 2014 at 17:06I found a weir problem on me usb cdc connection. I have one cdc device and one cdc host. Every time I connected device to host, host looks like find another device (VID:0069h, PID:0063h) and stuck there. I have to...
USB cdc speed is too low
Posted on February 06, 2014 at 16:35I am using cdc device to send message(32 byte length) to host with full speed. The message is send out every 1ms, while the host can only receive the message once around every 20ms second. Looks the speed is too s...
