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Fix MSP flash read so it returns the actual bytes read from the flash,

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and not the amount of bytes requested, which may be different depending
on the constraints of the flash chip used.
This commit is contained in:
Dominic Clifton 2018-12-06 12:14:57 +01:00
parent 25e1607292
commit 2627826cb7
1 changed files with 7 additions and 0 deletions
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7
src/main/interface/msp.c
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@ -375,6 +375,8 @@ static void serializeDataflashReadReply(sbuf_t *dst, uint32_t address, const uin
#endif
if (compressionMethod == NO_COMPRESSION) {
uint16_t *readLenPtr = (uint16_t *)sbufPtr(dst);
if (!useLegacyFormat) {
// new format supports variable read lengths
sbufWriteU16(dst, readLen);
@ -383,6 +385,11 @@ static void serializeDataflashReadReply(sbuf_t *dst, uint32_t address, const uin
const int bytesRead = flashfsReadAbs(address, sbufPtr(dst), readLen);
if (!useLegacyFormat) {
// update the 'read length' with the actual amount read from flash.
*readLenPtr = (uint16_t)bytesRead;
}
sbufAdvance(dst, bytesRead);
if (useLegacyFormat) {