stm32test: flash.c annotate

annotate flash.c @ 9:be0a1ac64d97

- Add ellipse drawing. - Factor out stripe drawing to a function. - Rename LCD functions to match other code. - Add filled circles. - Rotate coords for landsacpe.

author	Daniel O'Connor <darius@dons.net.au>
date	Sun, 05 Feb 2012 16:41:42 +1030
parents	58d76cf522ff
children

rev	line source
8 58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	1 #include <stdint.h>
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	2
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	3 #include "stm32f10x.h"
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	4 #include "spi.h"
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	5 #include "flash.h"
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	6
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	7 #define FL_SELECT() GPIO_ResetBits(GPIOA, GPIO_Pin_4)
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	8 #define FL_DESELECT() GPIO_SetBits(GPIOA, GPIO_Pin_4)
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	9
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	10 uint16_t
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	11 flashreadid(void) {
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	12 uint8_t fac, dev;
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	13
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	14 FL_SELECT(); /* Select device */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	15
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	16 SPI_WriteByte(FL_RDID); /* Send command */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	17 SPI_WriteByte(0x00); /* Send address cycles (ID data starts at 0) */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	18 SPI_WriteByte(0x00);
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	19 SPI_WriteByte(0x00);
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	20 fac = SPI_WriteByte(0x00); /* Read ID */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	21 dev = SPI_WriteByte(0x00);
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	22
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	23 FL_DESELECT(); /* De-select device */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	24
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	25 return fac << 8 \| dev;
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	26 }
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	27
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	28 uint8_t
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	29 flashreadstatus(void) {
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	30 uint8_t status;
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	31
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	32 FL_SELECT(); /* Select device */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	33
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	34 SPI_WriteByte(FL_RDSR); /* Send command */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	35 SPI_WriteByte(0x00); /* Send dummy byte for address cycle */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	36 status = SPI_WriteByte(0x00); /* Read status */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	37
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	38 FL_DESELECT(); /* De-select device */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	39
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	40 return status;
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	41 }
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	42
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	43 void
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	44 flashwritestatus(uint8_t status) {
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	45 /* Enable status write */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	46 FL_SELECT(); /* Select device */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	47 SPI_WriteByte(FL_EWSR); /* Send command */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	48 SPI_WriteByte(0x00); /* Send data byte */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	49 FL_DESELECT();
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	50
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	51 /* Actually write status */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	52 FL_SELECT(); /* Re-select device for new command */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	53 SPI_WriteByte(FL_WRSR); /* Send command */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	54 SPI_WriteByte(status); /* Send data byte */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	55 FL_DESELECT(); /* De-select device */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	56 }
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	57

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annotate flash.c @ 9:be0a1ac64d97