LPC22xx SPI, Пытаюсь настроить передачу через SPI. Реакция нулевая... Опции

[schaulin]

Пытаюсь настроить передачу через SPI. Реакция нулевая...

void SPI_Init(void)
{
PINSEL1 |= 0x88; // configure SPI1 pins

SPCCR = 0x08; /* Clock Counter = 8 */
SPCR = 0x08A0; /* SPIE and MSTR enable, transfer with 8 bits */

}

int SPI_write (void)
{
unsigned char result;

SPDR = data; // send next SPI channel 0 data
while (!(SPSR & 0x80)) ; // wait for transfer completed

return (0);

}

Сообщение отредактировал schaulin - Aug 24 2006, 13:52

[solidreg]

From PDF:
"Note: LPC2119/2129/2194/2292/2294 configured to operate as SPI master MUST select
SSEL functionality on an apropriate pin and have HIGH level on this pin in order to act
as a master."

Kak tam y vas dela c SSEL?

[schaulin]

From PDF:
"Note: LPC2119/2129/2194/2292/2294 configured to operate as SPI master MUST select
SSEL functionality on an apropriate pin and have HIGH level on this pin in order to act
as a master."

Kak tam y vas dela c SSEL?

Unlike earlier Philips ARM devices, LPC2210/2220 configured as a SPI0/1
master does not need an external pull-up on the SSEL0/1 pin in order to perform.
LPC2210/2220 based SPI master can use the pin hosting SSEL0/1 function for a
non-SPI purpose, too. For example, pin providing the SSEL0 function can be
configured as an output digital GPIO pin and used to select one of the SPI0
slaves. This is usually the case with a SPI system is designed around a single
master device

всем привет
я нашёл ошибку
всё дело было в SSEL сигнале несмотря на то что в датешите стоит что его можно непреминять

Сообщение отредактировал schaulin - Sep 14 2006, 11:15