stm32temp: flash.c annotate

annotate flash.c @ 22:198ac9d95770

Add test for assert

author	Daniel O'Connor <darius@dons.net.au>
date	Sat, 17 Nov 2012 12:14:38 +1030
parents	bd8e2cf04034
children	a9cc07caa801

rev	line source
21 bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	1 #include <stdio.h>
8 58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	2 #include <stdint.h>
21 bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	3 #include <string.h>
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	4 #include <stdlib.h>
8 58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	5
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	6 #include "stm32f10x.h"
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	7 #include "spi.h"
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	8 #include "flash.h"
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 #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	11 #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	12
21 bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	13 static const char *flstattbl[] = {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	14 "BUSY",
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	15 "WEL",
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	16 "BP0",
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	17 "BP1",
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	18 "BP2",
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	19 "BP3",
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	20 "AAI",
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	21 "BPL"
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	22 };
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	23
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	24 void
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	25 flashcmd(char **argv, int argc) {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	26 uint8_t status, tmp;
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	27
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	28 if (argc == 0) {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	29 fputs("No command specified\r\n", stdout);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	30 return;
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	31 }
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	32
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	33 if (!strcmp(argv[0], "str")) {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	34 status = flashreadstatus();
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	35 fputs("Status = ", stdout);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	36 for (unsigned int i = 0; i < sizeof(flstattbl) / sizeof(flstattbl[0]); i++)
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	37 if (status & 1 << i) {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	38 fputs(flstattbl[i], stdout);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	39 fputs(" ", stdout);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	40 }
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	41 printf("(0x%02x)\r\n", status);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	42 } else if (!strcmp(argv[0], "stw")) {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	43 if (argc != 2) {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	44 fputs("Incorrect number of arguments\r\n", stdout);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	45 return;
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	46 }
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	47 tmp = atoi(argv[1]);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	48 flashwritestatus(tmp);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	49 status = flashreadstatus();
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	50 printf("Wrote 0x%02x to status, now 0x%02x\r\n", tmp, status);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	51 } else if (!strcmp(argv[0], "er")) {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	52 if (argc != 2) {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	53 fputs("Incorrect number of arguments\r\n", stdout);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	54 return;
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	55 }
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	56 tmp = atoi(argv[1]);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	57 flash4kerase(tmp);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	58 printf("Erased 0x%x\r\n", tmp);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	59 } else if (!strcmp(argv[0], "rd")) {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	60 if (argc != 2) {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	61 fputs("Incorrect number of arguments\r\n", stdout);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	62 return;
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	63 }
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	64 tmp = atoi(argv[1]);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	65
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	66 for (int i = 0; i < 16; i++)
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	67 printf("Read 0x%02x from 0x%06x\r\n", flashread(tmp + i), tmp + i);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	68 fputs("\r\n", stdout);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	69 } else if (!strcmp(argv[0], "wr")) {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	70 if (argc != 2) {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	71 fputs("Incorrect number of arguments\r\n", stdout);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	72 return;
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	73 }
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	74
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	75 tmp = atoi(argv[1]);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	76
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	77 for (int i = 0; i < 16; i++) {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	78 printf("Writing 0x%02x to 0x%06x\r\n", tmp + i, i);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	79 flashwrite(tmp + i, i);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	80 }
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	81
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	82 } else if (!strcmp(argv[0], "id")) {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	83 printf("Flash ID = 0x%04hx (expect 0xbf41)\r\n", flashreadid());
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	84 } else {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	85 fputs("Unknown sub command\r\n", stdout);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	86 return;
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	87 }
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	88 }
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	89
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	90 void
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	91 flash4kerase(uint32_t addr) {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	92 uint8_t cnt;
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	93
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	94 flashenablewrite(); /* Enable writing */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	95
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	96 FL_SELECT(); /* Select device */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	97
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	98 SPI_WriteByte(FL_4KERASE); /* Send command */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	99 SPI_WriteByte((addr & 0x00ff0000) >> 16);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	100 SPI_WriteByte((addr & 0x0000ff00) >> 8);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	101 SPI_WriteByte((addr & 0x000000ff)); /* Send address */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	102
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	103 FL_DESELECT();
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	104
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	105 /* Wait for not BUSY */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	106 for (cnt = 0; (flashreadstatus() & FL_BUSY) != 0; cnt++)
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	107 ;
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	108
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	109 //printf("cnt = %d\r\n", cnt);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	110 }
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	111
8 58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	112 uint16_t
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	113 flashreadid(void) {
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	114 uint8_t fac, dev;
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	115
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	116 FL_SELECT(); /* Select device */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	117
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	118 SPI_WriteByte(FL_RDID); /* Send command */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	119 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	120 SPI_WriteByte(0x00);
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	121 SPI_WriteByte(0x00);
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	122 fac = SPI_WriteByte(0x00); /* Read ID */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	123 dev = SPI_WriteByte(0x00);
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	124
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	125 FL_DESELECT(); /* De-select device */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	126
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	127 return fac << 8 \| dev;
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	128 }
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	129
21 bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	130 void
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	131 flashenablewrite(void) {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	132 FL_SELECT(); /* Select device */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	133
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	134 SPI_WriteByte(FL_WREN); /* Send command */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	135
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	136 FL_DESELECT(); /* De-select device */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	137 }
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	138
8 58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	139 uint8_t
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	140 flashreadstatus(void) {
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	141 uint8_t status;
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	142
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	143 FL_SELECT(); /* Select device */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	144
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	145 SPI_WriteByte(FL_RDSR); /* Send command */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	146 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	147 status = SPI_WriteByte(0x00); /* Read status */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	148
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	149 FL_DESELECT(); /* De-select device */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	150
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	151 return status;
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	152 }
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	153
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	154 void
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	155 flashwritestatus(uint8_t status) {
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	156 /* Enable status write */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	157 FL_SELECT(); /* Select device */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	158 SPI_WriteByte(FL_EWSR); /* Send command */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	159 SPI_WriteByte(0x00); /* Send data byte */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	160 FL_DESELECT();
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	161
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	162 /* Actually write status */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	163 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	164 SPI_WriteByte(FL_WRSR); /* Send command */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	165 SPI_WriteByte(status); /* Send data byte */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	166 FL_DESELECT(); /* De-select device */
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	167 }
58d76cf522ff Split out code into separate files. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	168
21 bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	169 uint8_t
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	170 flashread(uint32_t addr) {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	171 uint8_t data;
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	172
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	173 FL_SELECT(); /* Select device */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	174
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	175 SPI_WriteByte(FL_READ); /* Send command */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	176 SPI_WriteByte((addr & 0x00ff0000) >> 16);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	177 SPI_WriteByte((addr & 0x0000ff00) >> 8);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	178 SPI_WriteByte((addr & 0x000000ff)); /* Send address */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	179 data = SPI_WriteByte(0x00); /* Read data */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	180
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	181 FL_DESELECT(); /* De-select device */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	182
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	183 return data;
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	184 }
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	185
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	186 void
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	187 flashwrite(uint32_t addr, uint8_t data) {
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	188 flashenablewrite(); /* Enable writes */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	189
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	190 FL_SELECT(); /* Select device */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	191
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	192 SPI_WriteByte(FL_BYTEPROG); /* Send command */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	193 SPI_WriteByte((addr & 0x00ff0000) >> 16);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	194 SPI_WriteByte((addr & 0x0000ff00) >> 8);
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	195 SPI_WriteByte((addr & 0x000000ff)); /* Send address */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	196 SPI_WriteByte(data); /* Write data */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	197
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	198 FL_DESELECT(); /* De-select device */
bd8e2cf04034 - Add flash erase, write & read commands (needs more work). Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	199 }

Mercurial > ~darius > hgwebdir.cgi > stm32temp

annotate flash.c @ 22:198ac9d95770