Spifi flash Reading.

lpcware — Wed, 15 Jun 2016 18:30:35 GMT

Content originally posted in LPCWare by lintovincent88 on Tue May 19 21:08:12 MST 2015
Hi nxp,

I am using SPIFI for saving images and its working fine, but sometimes if there is any sudden fluctuations in power supply or sudden power reset the image colors(RGB sequence) are getting changed. am attaching those images with this thread. also the code used to interface the spifi.Please tell me what is the reason for this error.

code:

LPC_SC->PCONP |= 0x00010000;
LPC_IOCON->P2_7 &= ~0x000000217;
LPC_IOCON->P2_7 |= 0x000000215;/* SPIFI_CSN @ P2.7 */
LPC_IOCON->P0_22 &= ~0x000000217;
LPC_IOCON->P0_22 |= 0x000000215;/* SPIFI_CLK @ P0.22 */
LPC_IOCON->P0_15 &= ~0x000000217;
LPC_IOCON->P0_15 |= 0x000000215;/* SPIFI_IO2 @ P0.15 */
LPC_IOCON->P0_16 &= ~0x000000217;
LPC_IOCON->P0_16 |= 0x000000215;/* SPIFI_IO3 @ P0.16 */
LPC_IOCON->P0_17 &= ~0x000000217;
LPC_IOCON->P0_17 |= 0x000000215;/* SPIFI_IO1 @ P0.17 */
LPC_IOCON->P0_18 &= ~0x000000217;
LPC_IOCON->P0_18 |= 0x000000215;/* SPIFI_IO0 @ P0.18 */

LPC_SC->SPIFICLKSEL |= 0x00000108; //15MHZ //

errCode = spifiInit(LPC_SPIFI_BASE, true);
spifiRegisterFamily(spifi_REG_FAMILY_CommonCommandSet);
memSize = spifiGetHandleMemSize(LPC_SPIFI_BASE);
if (memSize == 0)
{
/* No device detected, error */
return (SPIFI_ERR_GEN);
}

pSpifiHandle = spifiInitDevice(&lmem, sizeof(lmem), LPC_SPIFI_BASE,SPIFLASH_BASE_ADDRESS);

LPC_SC->SPIFICLKSEL |= 0x00000102; //60MHZ

spifiDevSetMemMode(pSpifiHandle, true);
spifiDevSetOpts(pSpifiHandle,SPIFI_OPT_USE_QUAD,1);

/* Image Loading to buffer1 */ //WELCOME_A 0x28000000

pSpifiHandle = spifiInitDevice(&lmem, sizeof(lmem), LPC_SPIFI_BASE,SPIFLASH_BASE_ADDRESS);
spifiDevSetMemMode(pSpifiHandle, true);
send_image_data(BUFFER1,0,0,480,272,WELCOME_A);
write_command(SET_DISPLAY_ON); //SET display on
switch_screen(BUFFER1);

LPC Microcontrollers中的主题 Spifi flash Reading.

Spifi flash Reading.