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SPI flash: check busy flag is clear BEFORE enabling writes

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This commit is contained in:
Dominic Spill
2019-01-04 19:58:04 -07:00
parent 1b95b2edc7
commit 90d4014859
1 changed files with 3 additions and 3 deletions
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6
firmware/common/w25q80bv.c
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@ -125,8 +125,8 @@ void w25q80bv_chip_erase(w25q80bv_driver_t* const drv)
} while(device_id != W25Q80BV_DEVICE_ID_RES && } while(device_id != W25Q80BV_DEVICE_ID_RES &&
device_id != W25Q16DV_DEVICE_ID_RES); device_id != W25Q16DV_DEVICE_ID_RES);
w25q80bv_write_enable(drv);
w25q80bv_wait_while_busy(drv); w25q80bv_wait_while_busy(drv);
w25q80bv_write_enable(drv);
uint8_t data[] = { W25Q80BV_CHIP_ERASE }; uint8_t data[] = { W25Q80BV_CHIP_ERASE };
spi_bus_transfer(drv->bus, data, ARRAY_SIZE(data)); spi_bus_transfer(drv->bus, data, ARRAY_SIZE(data));
@ -143,8 +143,8 @@ static void w25q80bv_page_program(w25q80bv_driver_t* const drv, const uint32_t a
if (addr > (drv->num_bytes - len)) if (addr > (drv->num_bytes - len))
return; return;
w25q80bv_write_enable(drv);
w25q80bv_wait_while_busy(drv); w25q80bv_wait_while_busy(drv);
w25q80bv_write_enable(drv);
uint8_t header[] = { uint8_t header[] = {
W25Q80BV_PAGE_PROGRAM, W25Q80BV_PAGE_PROGRAM,
@ -230,8 +230,8 @@ void w25q80bv_read(w25q80bv_driver_t* const drv, uint32_t addr, uint32_t len, ui
void w25q80bv_clear_status(w25q80bv_driver_t* const drv) void w25q80bv_clear_status(w25q80bv_driver_t* const drv)
{ {
w25q80bv_write_enable(drv);
w25q80bv_wait_while_busy(drv); w25q80bv_wait_while_busy(drv);
w25q80bv_write_enable(drv);
uint8_t data[] = { W25Q80BV_WRITE_STATUS, 0x00, 0x00 }; uint8_t data[] = { W25Q80BV_WRITE_STATUS, 0x00, 0x00 };
spi_bus_transfer(drv->bus, data, ARRAY_SIZE(data)); spi_bus_transfer(drv->bus, data, ARRAY_SIZE(data));
} }